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<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Virginia - earns a return</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>147.4</td><td></td><td></td><td>1 year</td></tr><tr><td>Under-recovered Fuel Costs, West Virginia - does not earn a return</td><td></td><td>—</td><td></td><td></td><td>8.0</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>155.4</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>0.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>1.1</td><td></td><td></td><td>0.6</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>282.1</td><td></td><td></td><td>25.9</td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - West Virginia</td><td></td><td>144.2</td><td></td><td></td><td>91.5</td><td></td><td></td><td></td></tr><tr><td>2024-2025 Virginia Under-Earnings</td><td></td><td>78.4</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Pension Settlement</td><td></td><td>17.8</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>11.9</td><td></td><td></td><td>7.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>534.4</td><td></td><td></td><td>124.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>535.5</td><td></td><td></td><td>125.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - West Virginia</td><td></td><td>154.1</td><td></td><td></td><td>154.2</td><td></td><td></td><td>10 years</td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>68.0</td><td></td><td></td><td>72.0</td><td></td><td></td><td>19 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - Virginia</td><td></td><td>—</td><td></td><td></td><td>107.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.2</td><td></td><td></td><td>7.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>227.3</td><td></td><td></td><td>340.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs</td><td></td><td>307.5</td><td></td><td></td><td>324.7</td><td></td><td></td><td>15 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>107.9</td><td></td><td></td><td>115.8</td><td></td><td></td><td>12 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>67.0</td><td></td><td></td><td>70.7</td><td></td><td></td><td>21 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2020-2022 Virginia Triennial Under-Earnings</td><td></td><td>26.0</td><td></td><td></td><td>37.4</td><td></td><td></td><td>3 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>14.2</td><td></td><td></td><td>15.0</td><td></td><td></td><td>2 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>13.2</td><td></td><td></td><td>14.9</td><td></td><td></td><td>3 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Vegetation Management Program - West Virginia</td><td></td><td>11.9</td><td></td><td></td><td>12.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Virginia Generation Rate Adjustment Clause</td><td></td><td>11.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Virginia Excess SO 2 Allowance Inventory - Virginia</td><td></td><td>10.5</td><td></td><td></td><td>11.8</td><td></td><td></td><td>8 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>3.4</td><td></td><td></td><td>25.5</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>—</td><td></td><td></td><td>21.9</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>30.0</td><td></td><td></td><td>27.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>603.2</td><td></td><td></td><td>689.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>830.5</td><td></td><td></td><td>1,029.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>1,366.0</td><td></td><td></td><td>$</td><td>1,155.1</td><td></td><td></td><td></td></tr></table>
|
table
|
72.0
|
monetaryItemType
|
table: <entity> 72.0 </entity> <entity type> monetaryItemType </entity type> <context> Plant Retirement Costs - Unrecovered Plant | 68.0 | 72.0 | 19 years </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Virginia - earns a return</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>147.4</td><td></td><td></td><td>1 year</td></tr><tr><td>Under-recovered Fuel Costs, West Virginia - does not earn a return</td><td></td><td>—</td><td></td><td></td><td>8.0</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>155.4</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>0.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>1.1</td><td></td><td></td><td>0.6</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>282.1</td><td></td><td></td><td>25.9</td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - West Virginia</td><td></td><td>144.2</td><td></td><td></td><td>91.5</td><td></td><td></td><td></td></tr><tr><td>2024-2025 Virginia Under-Earnings</td><td></td><td>78.4</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Pension Settlement</td><td></td><td>17.8</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>11.9</td><td></td><td></td><td>7.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>534.4</td><td></td><td></td><td>124.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>535.5</td><td></td><td></td><td>125.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - West Virginia</td><td></td><td>154.1</td><td></td><td></td><td>154.2</td><td></td><td></td><td>10 years</td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>68.0</td><td></td><td></td><td>72.0</td><td></td><td></td><td>19 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - Virginia</td><td></td><td>—</td><td></td><td></td><td>107.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.2</td><td></td><td></td><td>7.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>227.3</td><td></td><td></td><td>340.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs</td><td></td><td>307.5</td><td></td><td></td><td>324.7</td><td></td><td></td><td>15 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>107.9</td><td></td><td></td><td>115.8</td><td></td><td></td><td>12 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>67.0</td><td></td><td></td><td>70.7</td><td></td><td></td><td>21 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2020-2022 Virginia Triennial Under-Earnings</td><td></td><td>26.0</td><td></td><td></td><td>37.4</td><td></td><td></td><td>3 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>14.2</td><td></td><td></td><td>15.0</td><td></td><td></td><td>2 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>13.2</td><td></td><td></td><td>14.9</td><td></td><td></td><td>3 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Vegetation Management Program - West Virginia</td><td></td><td>11.9</td><td></td><td></td><td>12.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Virginia Generation Rate Adjustment Clause</td><td></td><td>11.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Virginia Excess SO 2 Allowance Inventory - Virginia</td><td></td><td>10.5</td><td></td><td></td><td>11.8</td><td></td><td></td><td>8 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>3.4</td><td></td><td></td><td>25.5</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>—</td><td></td><td></td><td>21.9</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>30.0</td><td></td><td></td><td>27.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>603.2</td><td></td><td></td><td>689.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>830.5</td><td></td><td></td><td>1,029.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>1,366.0</td><td></td><td></td><td>$</td><td>1,155.1</td><td></td><td></td><td></td></tr></table>
|
table
|
107.0
|
monetaryItemType
|
table: <entity> 107.0 </entity> <entity type> monetaryItemType </entity type> <context> Long-term Under-recovered Fuel Costs - Virginia | — | 107.0 </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Virginia - earns a return</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>147.4</td><td></td><td></td><td>1 year</td></tr><tr><td>Under-recovered Fuel Costs, West Virginia - does not earn a return</td><td></td><td>—</td><td></td><td></td><td>8.0</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>155.4</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>0.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>1.1</td><td></td><td></td><td>0.6</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>282.1</td><td></td><td></td><td>25.9</td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - West Virginia</td><td></td><td>144.2</td><td></td><td></td><td>91.5</td><td></td><td></td><td></td></tr><tr><td>2024-2025 Virginia Under-Earnings</td><td></td><td>78.4</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Pension Settlement</td><td></td><td>17.8</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>11.9</td><td></td><td></td><td>7.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>534.4</td><td></td><td></td><td>124.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>535.5</td><td></td><td></td><td>125.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - West Virginia</td><td></td><td>154.1</td><td></td><td></td><td>154.2</td><td></td><td></td><td>10 years</td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>68.0</td><td></td><td></td><td>72.0</td><td></td><td></td><td>19 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - Virginia</td><td></td><td>—</td><td></td><td></td><td>107.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.2</td><td></td><td></td><td>7.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>227.3</td><td></td><td></td><td>340.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs</td><td></td><td>307.5</td><td></td><td></td><td>324.7</td><td></td><td></td><td>15 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>107.9</td><td></td><td></td><td>115.8</td><td></td><td></td><td>12 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>67.0</td><td></td><td></td><td>70.7</td><td></td><td></td><td>21 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2020-2022 Virginia Triennial Under-Earnings</td><td></td><td>26.0</td><td></td><td></td><td>37.4</td><td></td><td></td><td>3 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>14.2</td><td></td><td></td><td>15.0</td><td></td><td></td><td>2 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>13.2</td><td></td><td></td><td>14.9</td><td></td><td></td><td>3 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Vegetation Management Program - West Virginia</td><td></td><td>11.9</td><td></td><td></td><td>12.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Virginia Generation Rate Adjustment Clause</td><td></td><td>11.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Virginia Excess SO 2 Allowance Inventory - Virginia</td><td></td><td>10.5</td><td></td><td></td><td>11.8</td><td></td><td></td><td>8 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>3.4</td><td></td><td></td><td>25.5</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>—</td><td></td><td></td><td>21.9</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>30.0</td><td></td><td></td><td>27.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>603.2</td><td></td><td></td><td>689.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>830.5</td><td></td><td></td><td>1,029.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>1,366.0</td><td></td><td></td><td>$</td><td>1,155.1</td><td></td><td></td><td></td></tr></table>
|
table
|
5.2
|
monetaryItemType
|
table: <entity> 5.2 </entity> <entity type> monetaryItemType </entity type> <context> Other Regulatory Assets Approved for Recovery | 5.2 | 7.1 | various </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Virginia - earns a return</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>147.4</td><td></td><td></td><td>1 year</td></tr><tr><td>Under-recovered Fuel Costs, West Virginia - does not earn a return</td><td></td><td>—</td><td></td><td></td><td>8.0</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>155.4</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>0.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>1.1</td><td></td><td></td><td>0.6</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>282.1</td><td></td><td></td><td>25.9</td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - West Virginia</td><td></td><td>144.2</td><td></td><td></td><td>91.5</td><td></td><td></td><td></td></tr><tr><td>2024-2025 Virginia Under-Earnings</td><td></td><td>78.4</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Pension Settlement</td><td></td><td>17.8</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>11.9</td><td></td><td></td><td>7.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>534.4</td><td></td><td></td><td>124.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>535.5</td><td></td><td></td><td>125.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - West Virginia</td><td></td><td>154.1</td><td></td><td></td><td>154.2</td><td></td><td></td><td>10 years</td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>68.0</td><td></td><td></td><td>72.0</td><td></td><td></td><td>19 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - Virginia</td><td></td><td>—</td><td></td><td></td><td>107.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.2</td><td></td><td></td><td>7.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>227.3</td><td></td><td></td><td>340.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs</td><td></td><td>307.5</td><td></td><td></td><td>324.7</td><td></td><td></td><td>15 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>107.9</td><td></td><td></td><td>115.8</td><td></td><td></td><td>12 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>67.0</td><td></td><td></td><td>70.7</td><td></td><td></td><td>21 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2020-2022 Virginia Triennial Under-Earnings</td><td></td><td>26.0</td><td></td><td></td><td>37.4</td><td></td><td></td><td>3 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>14.2</td><td></td><td></td><td>15.0</td><td></td><td></td><td>2 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>13.2</td><td></td><td></td><td>14.9</td><td></td><td></td><td>3 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Vegetation Management Program - West Virginia</td><td></td><td>11.9</td><td></td><td></td><td>12.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Virginia Generation Rate Adjustment Clause</td><td></td><td>11.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Virginia Excess SO 2 Allowance Inventory - Virginia</td><td></td><td>10.5</td><td></td><td></td><td>11.8</td><td></td><td></td><td>8 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>3.4</td><td></td><td></td><td>25.5</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>—</td><td></td><td></td><td>21.9</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>30.0</td><td></td><td></td><td>27.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>603.2</td><td></td><td></td><td>689.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>830.5</td><td></td><td></td><td>1,029.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>1,366.0</td><td></td><td></td><td>$</td><td>1,155.1</td><td></td><td></td><td></td></tr></table>
|
table
|
7.1
|
monetaryItemType
|
table: <entity> 7.1 </entity> <entity type> monetaryItemType </entity type> <context> Other Regulatory Assets Approved for Recovery | 5.2 | 7.1 | various </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Virginia - earns a return</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>147.4</td><td></td><td></td><td>1 year</td></tr><tr><td>Under-recovered Fuel Costs, West Virginia - does not earn a return</td><td></td><td>—</td><td></td><td></td><td>8.0</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>155.4</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>0.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>1.1</td><td></td><td></td><td>0.6</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>282.1</td><td></td><td></td><td>25.9</td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - West Virginia</td><td></td><td>144.2</td><td></td><td></td><td>91.5</td><td></td><td></td><td></td></tr><tr><td>2024-2025 Virginia Under-Earnings</td><td></td><td>78.4</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Pension Settlement</td><td></td><td>17.8</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>11.9</td><td></td><td></td><td>7.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>534.4</td><td></td><td></td><td>124.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>535.5</td><td></td><td></td><td>125.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - West Virginia</td><td></td><td>154.1</td><td></td><td></td><td>154.2</td><td></td><td></td><td>10 years</td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>68.0</td><td></td><td></td><td>72.0</td><td></td><td></td><td>19 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - Virginia</td><td></td><td>—</td><td></td><td></td><td>107.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.2</td><td></td><td></td><td>7.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>227.3</td><td></td><td></td><td>340.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs</td><td></td><td>307.5</td><td></td><td></td><td>324.7</td><td></td><td></td><td>15 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>107.9</td><td></td><td></td><td>115.8</td><td></td><td></td><td>12 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>67.0</td><td></td><td></td><td>70.7</td><td></td><td></td><td>21 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2020-2022 Virginia Triennial Under-Earnings</td><td></td><td>26.0</td><td></td><td></td><td>37.4</td><td></td><td></td><td>3 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>14.2</td><td></td><td></td><td>15.0</td><td></td><td></td><td>2 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>13.2</td><td></td><td></td><td>14.9</td><td></td><td></td><td>3 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Vegetation Management Program - West Virginia</td><td></td><td>11.9</td><td></td><td></td><td>12.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Virginia Generation Rate Adjustment Clause</td><td></td><td>11.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Virginia Excess SO 2 Allowance Inventory - Virginia</td><td></td><td>10.5</td><td></td><td></td><td>11.8</td><td></td><td></td><td>8 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>3.4</td><td></td><td></td><td>25.5</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>—</td><td></td><td></td><td>21.9</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>30.0</td><td></td><td></td><td>27.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>603.2</td><td></td><td></td><td>689.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>830.5</td><td></td><td></td><td>1,029.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>1,366.0</td><td></td><td></td><td>$</td><td>1,155.1</td><td></td><td></td><td></td></tr></table>
|
table
|
227.3
|
monetaryItemType
|
table: <entity> 227.3 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Assets Currently Earning a Return | 227.3 | 340.3 </context>
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us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Virginia - earns a return</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>147.4</td><td></td><td></td><td>1 year</td></tr><tr><td>Under-recovered Fuel Costs, West Virginia - does not earn a return</td><td></td><td>—</td><td></td><td></td><td>8.0</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>155.4</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>0.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>1.1</td><td></td><td></td><td>0.6</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>282.1</td><td></td><td></td><td>25.9</td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - West Virginia</td><td></td><td>144.2</td><td></td><td></td><td>91.5</td><td></td><td></td><td></td></tr><tr><td>2024-2025 Virginia Under-Earnings</td><td></td><td>78.4</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Pension Settlement</td><td></td><td>17.8</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>11.9</td><td></td><td></td><td>7.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>534.4</td><td></td><td></td><td>124.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>535.5</td><td></td><td></td><td>125.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - West Virginia</td><td></td><td>154.1</td><td></td><td></td><td>154.2</td><td></td><td></td><td>10 years</td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>68.0</td><td></td><td></td><td>72.0</td><td></td><td></td><td>19 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - Virginia</td><td></td><td>—</td><td></td><td></td><td>107.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.2</td><td></td><td></td><td>7.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>227.3</td><td></td><td></td><td>340.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs</td><td></td><td>307.5</td><td></td><td></td><td>324.7</td><td></td><td></td><td>15 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>107.9</td><td></td><td></td><td>115.8</td><td></td><td></td><td>12 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>67.0</td><td></td><td></td><td>70.7</td><td></td><td></td><td>21 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2020-2022 Virginia Triennial Under-Earnings</td><td></td><td>26.0</td><td></td><td></td><td>37.4</td><td></td><td></td><td>3 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>14.2</td><td></td><td></td><td>15.0</td><td></td><td></td><td>2 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>13.2</td><td></td><td></td><td>14.9</td><td></td><td></td><td>3 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Vegetation Management Program - West Virginia</td><td></td><td>11.9</td><td></td><td></td><td>12.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Virginia Generation Rate Adjustment Clause</td><td></td><td>11.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Virginia Excess SO 2 Allowance Inventory - Virginia</td><td></td><td>10.5</td><td></td><td></td><td>11.8</td><td></td><td></td><td>8 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>3.4</td><td></td><td></td><td>25.5</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>—</td><td></td><td></td><td>21.9</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>30.0</td><td></td><td></td><td>27.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>603.2</td><td></td><td></td><td>689.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>830.5</td><td></td><td></td><td>1,029.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>1,366.0</td><td></td><td></td><td>$</td><td>1,155.1</td><td></td><td></td><td></td></tr></table>
|
table
|
340.3
|
monetaryItemType
|
table: <entity> 340.3 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Assets Currently Earning a Return | 227.3 | 340.3 </context>
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us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Virginia - earns a return</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>147.4</td><td></td><td></td><td>1 year</td></tr><tr><td>Under-recovered Fuel Costs, West Virginia - does not earn a return</td><td></td><td>—</td><td></td><td></td><td>8.0</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>155.4</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>0.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>1.1</td><td></td><td></td><td>0.6</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>282.1</td><td></td><td></td><td>25.9</td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - West Virginia</td><td></td><td>144.2</td><td></td><td></td><td>91.5</td><td></td><td></td><td></td></tr><tr><td>2024-2025 Virginia Under-Earnings</td><td></td><td>78.4</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Pension Settlement</td><td></td><td>17.8</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>11.9</td><td></td><td></td><td>7.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>534.4</td><td></td><td></td><td>124.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>535.5</td><td></td><td></td><td>125.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - West Virginia</td><td></td><td>154.1</td><td></td><td></td><td>154.2</td><td></td><td></td><td>10 years</td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>68.0</td><td></td><td></td><td>72.0</td><td></td><td></td><td>19 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - Virginia</td><td></td><td>—</td><td></td><td></td><td>107.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.2</td><td></td><td></td><td>7.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>227.3</td><td></td><td></td><td>340.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs</td><td></td><td>307.5</td><td></td><td></td><td>324.7</td><td></td><td></td><td>15 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>107.9</td><td></td><td></td><td>115.8</td><td></td><td></td><td>12 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>67.0</td><td></td><td></td><td>70.7</td><td></td><td></td><td>21 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2020-2022 Virginia Triennial Under-Earnings</td><td></td><td>26.0</td><td></td><td></td><td>37.4</td><td></td><td></td><td>3 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>14.2</td><td></td><td></td><td>15.0</td><td></td><td></td><td>2 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>13.2</td><td></td><td></td><td>14.9</td><td></td><td></td><td>3 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Vegetation Management Program - West Virginia</td><td></td><td>11.9</td><td></td><td></td><td>12.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Virginia Generation Rate Adjustment Clause</td><td></td><td>11.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Virginia Excess SO 2 Allowance Inventory - Virginia</td><td></td><td>10.5</td><td></td><td></td><td>11.8</td><td></td><td></td><td>8 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>3.4</td><td></td><td></td><td>25.5</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>—</td><td></td><td></td><td>21.9</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>30.0</td><td></td><td></td><td>27.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>603.2</td><td></td><td></td><td>689.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>830.5</td><td></td><td></td><td>1,029.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>1,366.0</td><td></td><td></td><td>$</td><td>1,155.1</td><td></td><td></td><td></td></tr></table>
|
table
|
307.5
|
monetaryItemType
|
table: <entity> 307.5 </entity> <entity type> monetaryItemType </entity type> <context> Plant Retirement Costs - Asset Retirement Obligation Costs | 307.5 | 324.7 | 15 years </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Virginia - earns a return</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>147.4</td><td></td><td></td><td>1 year</td></tr><tr><td>Under-recovered Fuel Costs, West Virginia - does not earn a return</td><td></td><td>—</td><td></td><td></td><td>8.0</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>155.4</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>0.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>1.1</td><td></td><td></td><td>0.6</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>282.1</td><td></td><td></td><td>25.9</td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - West Virginia</td><td></td><td>144.2</td><td></td><td></td><td>91.5</td><td></td><td></td><td></td></tr><tr><td>2024-2025 Virginia Under-Earnings</td><td></td><td>78.4</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Pension Settlement</td><td></td><td>17.8</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>11.9</td><td></td><td></td><td>7.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>534.4</td><td></td><td></td><td>124.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>535.5</td><td></td><td></td><td>125.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - West Virginia</td><td></td><td>154.1</td><td></td><td></td><td>154.2</td><td></td><td></td><td>10 years</td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>68.0</td><td></td><td></td><td>72.0</td><td></td><td></td><td>19 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - Virginia</td><td></td><td>—</td><td></td><td></td><td>107.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.2</td><td></td><td></td><td>7.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>227.3</td><td></td><td></td><td>340.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs</td><td></td><td>307.5</td><td></td><td></td><td>324.7</td><td></td><td></td><td>15 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>107.9</td><td></td><td></td><td>115.8</td><td></td><td></td><td>12 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>67.0</td><td></td><td></td><td>70.7</td><td></td><td></td><td>21 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2020-2022 Virginia Triennial Under-Earnings</td><td></td><td>26.0</td><td></td><td></td><td>37.4</td><td></td><td></td><td>3 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>14.2</td><td></td><td></td><td>15.0</td><td></td><td></td><td>2 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>13.2</td><td></td><td></td><td>14.9</td><td></td><td></td><td>3 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Vegetation Management Program - West Virginia</td><td></td><td>11.9</td><td></td><td></td><td>12.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Virginia Generation Rate Adjustment Clause</td><td></td><td>11.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Virginia Excess SO 2 Allowance Inventory - Virginia</td><td></td><td>10.5</td><td></td><td></td><td>11.8</td><td></td><td></td><td>8 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>3.4</td><td></td><td></td><td>25.5</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>—</td><td></td><td></td><td>21.9</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>30.0</td><td></td><td></td><td>27.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>603.2</td><td></td><td></td><td>689.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>830.5</td><td></td><td></td><td>1,029.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>1,366.0</td><td></td><td></td><td>$</td><td>1,155.1</td><td></td><td></td><td></td></tr></table>
|
table
|
324.7
|
monetaryItemType
|
table: <entity> 324.7 </entity> <entity type> monetaryItemType </entity type> <context> Plant Retirement Costs - Asset Retirement Obligation Costs | 307.5 | 324.7 | 15 years </context>
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us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Virginia - earns a return</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>147.4</td><td></td><td></td><td>1 year</td></tr><tr><td>Under-recovered Fuel Costs, West Virginia - does not earn a return</td><td></td><td>—</td><td></td><td></td><td>8.0</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>155.4</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>0.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>1.1</td><td></td><td></td><td>0.6</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>282.1</td><td></td><td></td><td>25.9</td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - West Virginia</td><td></td><td>144.2</td><td></td><td></td><td>91.5</td><td></td><td></td><td></td></tr><tr><td>2024-2025 Virginia Under-Earnings</td><td></td><td>78.4</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Pension Settlement</td><td></td><td>17.8</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>11.9</td><td></td><td></td><td>7.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>534.4</td><td></td><td></td><td>124.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>535.5</td><td></td><td></td><td>125.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - West Virginia</td><td></td><td>154.1</td><td></td><td></td><td>154.2</td><td></td><td></td><td>10 years</td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>68.0</td><td></td><td></td><td>72.0</td><td></td><td></td><td>19 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - Virginia</td><td></td><td>—</td><td></td><td></td><td>107.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.2</td><td></td><td></td><td>7.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>227.3</td><td></td><td></td><td>340.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs</td><td></td><td>307.5</td><td></td><td></td><td>324.7</td><td></td><td></td><td>15 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>107.9</td><td></td><td></td><td>115.8</td><td></td><td></td><td>12 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>67.0</td><td></td><td></td><td>70.7</td><td></td><td></td><td>21 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2020-2022 Virginia Triennial Under-Earnings</td><td></td><td>26.0</td><td></td><td></td><td>37.4</td><td></td><td></td><td>3 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>14.2</td><td></td><td></td><td>15.0</td><td></td><td></td><td>2 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>13.2</td><td></td><td></td><td>14.9</td><td></td><td></td><td>3 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Vegetation Management Program - West Virginia</td><td></td><td>11.9</td><td></td><td></td><td>12.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Virginia Generation Rate Adjustment Clause</td><td></td><td>11.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Virginia Excess SO 2 Allowance Inventory - Virginia</td><td></td><td>10.5</td><td></td><td></td><td>11.8</td><td></td><td></td><td>8 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>3.4</td><td></td><td></td><td>25.5</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>—</td><td></td><td></td><td>21.9</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>30.0</td><td></td><td></td><td>27.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>603.2</td><td></td><td></td><td>689.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>830.5</td><td></td><td></td><td>1,029.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>1,366.0</td><td></td><td></td><td>$</td><td>1,155.1</td><td></td><td></td><td></td></tr></table>
|
table
|
107.9
|
monetaryItemType
|
table: <entity> 107.9 </entity> <entity type> monetaryItemType </entity type> <context> Pension and OPEB Funded Status | 107.9 | 115.8 | 12 years </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Virginia - earns a return</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>147.4</td><td></td><td></td><td>1 year</td></tr><tr><td>Under-recovered Fuel Costs, West Virginia - does not earn a return</td><td></td><td>—</td><td></td><td></td><td>8.0</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>155.4</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>0.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>1.1</td><td></td><td></td><td>0.6</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>282.1</td><td></td><td></td><td>25.9</td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - West Virginia</td><td></td><td>144.2</td><td></td><td></td><td>91.5</td><td></td><td></td><td></td></tr><tr><td>2024-2025 Virginia Under-Earnings</td><td></td><td>78.4</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Pension Settlement</td><td></td><td>17.8</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>11.9</td><td></td><td></td><td>7.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>534.4</td><td></td><td></td><td>124.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>535.5</td><td></td><td></td><td>125.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - West Virginia</td><td></td><td>154.1</td><td></td><td></td><td>154.2</td><td></td><td></td><td>10 years</td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>68.0</td><td></td><td></td><td>72.0</td><td></td><td></td><td>19 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - Virginia</td><td></td><td>—</td><td></td><td></td><td>107.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.2</td><td></td><td></td><td>7.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>227.3</td><td></td><td></td><td>340.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs</td><td></td><td>307.5</td><td></td><td></td><td>324.7</td><td></td><td></td><td>15 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>107.9</td><td></td><td></td><td>115.8</td><td></td><td></td><td>12 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>67.0</td><td></td><td></td><td>70.7</td><td></td><td></td><td>21 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2020-2022 Virginia Triennial Under-Earnings</td><td></td><td>26.0</td><td></td><td></td><td>37.4</td><td></td><td></td><td>3 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>14.2</td><td></td><td></td><td>15.0</td><td></td><td></td><td>2 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>13.2</td><td></td><td></td><td>14.9</td><td></td><td></td><td>3 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Vegetation Management Program - West Virginia</td><td></td><td>11.9</td><td></td><td></td><td>12.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Virginia Generation Rate Adjustment Clause</td><td></td><td>11.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Virginia Excess SO 2 Allowance Inventory - Virginia</td><td></td><td>10.5</td><td></td><td></td><td>11.8</td><td></td><td></td><td>8 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>3.4</td><td></td><td></td><td>25.5</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>—</td><td></td><td></td><td>21.9</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>30.0</td><td></td><td></td><td>27.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>603.2</td><td></td><td></td><td>689.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>830.5</td><td></td><td></td><td>1,029.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>1,366.0</td><td></td><td></td><td>$</td><td>1,155.1</td><td></td><td></td><td></td></tr></table>
|
table
|
115.8
|
monetaryItemType
|
table: <entity> 115.8 </entity> <entity type> monetaryItemType </entity type> <context> Pension and OPEB Funded Status | 107.9 | 115.8 | 12 years </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Virginia - earns a return</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>147.4</td><td></td><td></td><td>1 year</td></tr><tr><td>Under-recovered Fuel Costs, West Virginia - does not earn a return</td><td></td><td>—</td><td></td><td></td><td>8.0</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>155.4</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>0.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>1.1</td><td></td><td></td><td>0.6</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>282.1</td><td></td><td></td><td>25.9</td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - West Virginia</td><td></td><td>144.2</td><td></td><td></td><td>91.5</td><td></td><td></td><td></td></tr><tr><td>2024-2025 Virginia Under-Earnings</td><td></td><td>78.4</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Pension Settlement</td><td></td><td>17.8</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>11.9</td><td></td><td></td><td>7.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>534.4</td><td></td><td></td><td>124.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>535.5</td><td></td><td></td><td>125.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - West Virginia</td><td></td><td>154.1</td><td></td><td></td><td>154.2</td><td></td><td></td><td>10 years</td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>68.0</td><td></td><td></td><td>72.0</td><td></td><td></td><td>19 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - Virginia</td><td></td><td>—</td><td></td><td></td><td>107.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.2</td><td></td><td></td><td>7.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>227.3</td><td></td><td></td><td>340.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs</td><td></td><td>307.5</td><td></td><td></td><td>324.7</td><td></td><td></td><td>15 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>107.9</td><td></td><td></td><td>115.8</td><td></td><td></td><td>12 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>67.0</td><td></td><td></td><td>70.7</td><td></td><td></td><td>21 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2020-2022 Virginia Triennial Under-Earnings</td><td></td><td>26.0</td><td></td><td></td><td>37.4</td><td></td><td></td><td>3 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>14.2</td><td></td><td></td><td>15.0</td><td></td><td></td><td>2 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>13.2</td><td></td><td></td><td>14.9</td><td></td><td></td><td>3 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Vegetation Management Program - West Virginia</td><td></td><td>11.9</td><td></td><td></td><td>12.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Virginia Generation Rate Adjustment Clause</td><td></td><td>11.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Virginia Excess SO 2 Allowance Inventory - Virginia</td><td></td><td>10.5</td><td></td><td></td><td>11.8</td><td></td><td></td><td>8 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>3.4</td><td></td><td></td><td>25.5</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>—</td><td></td><td></td><td>21.9</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>30.0</td><td></td><td></td><td>27.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>603.2</td><td></td><td></td><td>689.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>830.5</td><td></td><td></td><td>1,029.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>1,366.0</td><td></td><td></td><td>$</td><td>1,155.1</td><td></td><td></td><td></td></tr></table>
|
table
|
67.0
|
monetaryItemType
|
table: <entity> 67.0 </entity> <entity type> monetaryItemType </entity type> <context> Unamortized Loss on Reacquired Debt | 67.0 | 70.7 | 21 years </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Virginia - earns a return</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>147.4</td><td></td><td></td><td>1 year</td></tr><tr><td>Under-recovered Fuel Costs, West Virginia - does not earn a return</td><td></td><td>—</td><td></td><td></td><td>8.0</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>155.4</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>0.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>1.1</td><td></td><td></td><td>0.6</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>282.1</td><td></td><td></td><td>25.9</td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - West Virginia</td><td></td><td>144.2</td><td></td><td></td><td>91.5</td><td></td><td></td><td></td></tr><tr><td>2024-2025 Virginia Under-Earnings</td><td></td><td>78.4</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Pension Settlement</td><td></td><td>17.8</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>11.9</td><td></td><td></td><td>7.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>534.4</td><td></td><td></td><td>124.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>535.5</td><td></td><td></td><td>125.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - West Virginia</td><td></td><td>154.1</td><td></td><td></td><td>154.2</td><td></td><td></td><td>10 years</td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>68.0</td><td></td><td></td><td>72.0</td><td></td><td></td><td>19 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - Virginia</td><td></td><td>—</td><td></td><td></td><td>107.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.2</td><td></td><td></td><td>7.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>227.3</td><td></td><td></td><td>340.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs</td><td></td><td>307.5</td><td></td><td></td><td>324.7</td><td></td><td></td><td>15 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>107.9</td><td></td><td></td><td>115.8</td><td></td><td></td><td>12 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>67.0</td><td></td><td></td><td>70.7</td><td></td><td></td><td>21 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2020-2022 Virginia Triennial Under-Earnings</td><td></td><td>26.0</td><td></td><td></td><td>37.4</td><td></td><td></td><td>3 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>14.2</td><td></td><td></td><td>15.0</td><td></td><td></td><td>2 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>13.2</td><td></td><td></td><td>14.9</td><td></td><td></td><td>3 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Vegetation Management Program - West Virginia</td><td></td><td>11.9</td><td></td><td></td><td>12.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Virginia Generation Rate Adjustment Clause</td><td></td><td>11.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Virginia Excess SO 2 Allowance Inventory - Virginia</td><td></td><td>10.5</td><td></td><td></td><td>11.8</td><td></td><td></td><td>8 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>3.4</td><td></td><td></td><td>25.5</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>—</td><td></td><td></td><td>21.9</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>30.0</td><td></td><td></td><td>27.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>603.2</td><td></td><td></td><td>689.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>830.5</td><td></td><td></td><td>1,029.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>1,366.0</td><td></td><td></td><td>$</td><td>1,155.1</td><td></td><td></td><td></td></tr></table>
|
table
|
70.7
|
monetaryItemType
|
table: <entity> 70.7 </entity> <entity type> monetaryItemType </entity type> <context> Unamortized Loss on Reacquired Debt | 67.0 | 70.7 | 21 years </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Virginia - earns a return</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>147.4</td><td></td><td></td><td>1 year</td></tr><tr><td>Under-recovered Fuel Costs, West Virginia - does not earn a return</td><td></td><td>—</td><td></td><td></td><td>8.0</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>155.4</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>0.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>1.1</td><td></td><td></td><td>0.6</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>282.1</td><td></td><td></td><td>25.9</td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - West Virginia</td><td></td><td>144.2</td><td></td><td></td><td>91.5</td><td></td><td></td><td></td></tr><tr><td>2024-2025 Virginia Under-Earnings</td><td></td><td>78.4</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Pension Settlement</td><td></td><td>17.8</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>11.9</td><td></td><td></td><td>7.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>534.4</td><td></td><td></td><td>124.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>535.5</td><td></td><td></td><td>125.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - West Virginia</td><td></td><td>154.1</td><td></td><td></td><td>154.2</td><td></td><td></td><td>10 years</td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>68.0</td><td></td><td></td><td>72.0</td><td></td><td></td><td>19 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - Virginia</td><td></td><td>—</td><td></td><td></td><td>107.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.2</td><td></td><td></td><td>7.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>227.3</td><td></td><td></td><td>340.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs</td><td></td><td>307.5</td><td></td><td></td><td>324.7</td><td></td><td></td><td>15 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>107.9</td><td></td><td></td><td>115.8</td><td></td><td></td><td>12 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>67.0</td><td></td><td></td><td>70.7</td><td></td><td></td><td>21 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2020-2022 Virginia Triennial Under-Earnings</td><td></td><td>26.0</td><td></td><td></td><td>37.4</td><td></td><td></td><td>3 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>14.2</td><td></td><td></td><td>15.0</td><td></td><td></td><td>2 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>13.2</td><td></td><td></td><td>14.9</td><td></td><td></td><td>3 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Vegetation Management Program - West Virginia</td><td></td><td>11.9</td><td></td><td></td><td>12.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Virginia Generation Rate Adjustment Clause</td><td></td><td>11.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Virginia Excess SO 2 Allowance Inventory - Virginia</td><td></td><td>10.5</td><td></td><td></td><td>11.8</td><td></td><td></td><td>8 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>3.4</td><td></td><td></td><td>25.5</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>—</td><td></td><td></td><td>21.9</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>30.0</td><td></td><td></td><td>27.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>603.2</td><td></td><td></td><td>689.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>830.5</td><td></td><td></td><td>1,029.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>1,366.0</td><td></td><td></td><td>$</td><td>1,155.1</td><td></td><td></td><td></td></tr></table>
|
table
|
26.0
|
monetaryItemType
|
table: <entity> 26.0 </entity> <entity type> monetaryItemType </entity type> <context> 2020-2022 Virginia Triennial Under-Earnings | 26.0 | 37.4 | 3 years </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Virginia - earns a return</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>147.4</td><td></td><td></td><td>1 year</td></tr><tr><td>Under-recovered Fuel Costs, West Virginia - does not earn a return</td><td></td><td>—</td><td></td><td></td><td>8.0</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>155.4</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>0.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>1.1</td><td></td><td></td><td>0.6</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>282.1</td><td></td><td></td><td>25.9</td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - West Virginia</td><td></td><td>144.2</td><td></td><td></td><td>91.5</td><td></td><td></td><td></td></tr><tr><td>2024-2025 Virginia Under-Earnings</td><td></td><td>78.4</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Pension Settlement</td><td></td><td>17.8</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>11.9</td><td></td><td></td><td>7.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>534.4</td><td></td><td></td><td>124.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>535.5</td><td></td><td></td><td>125.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - West Virginia</td><td></td><td>154.1</td><td></td><td></td><td>154.2</td><td></td><td></td><td>10 years</td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>68.0</td><td></td><td></td><td>72.0</td><td></td><td></td><td>19 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - Virginia</td><td></td><td>—</td><td></td><td></td><td>107.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.2</td><td></td><td></td><td>7.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>227.3</td><td></td><td></td><td>340.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs</td><td></td><td>307.5</td><td></td><td></td><td>324.7</td><td></td><td></td><td>15 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>107.9</td><td></td><td></td><td>115.8</td><td></td><td></td><td>12 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>67.0</td><td></td><td></td><td>70.7</td><td></td><td></td><td>21 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2020-2022 Virginia Triennial Under-Earnings</td><td></td><td>26.0</td><td></td><td></td><td>37.4</td><td></td><td></td><td>3 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>14.2</td><td></td><td></td><td>15.0</td><td></td><td></td><td>2 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>13.2</td><td></td><td></td><td>14.9</td><td></td><td></td><td>3 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Vegetation Management Program - West Virginia</td><td></td><td>11.9</td><td></td><td></td><td>12.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Virginia Generation Rate Adjustment Clause</td><td></td><td>11.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Virginia Excess SO 2 Allowance Inventory - Virginia</td><td></td><td>10.5</td><td></td><td></td><td>11.8</td><td></td><td></td><td>8 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>3.4</td><td></td><td></td><td>25.5</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>—</td><td></td><td></td><td>21.9</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>30.0</td><td></td><td></td><td>27.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>603.2</td><td></td><td></td><td>689.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>830.5</td><td></td><td></td><td>1,029.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>1,366.0</td><td></td><td></td><td>$</td><td>1,155.1</td><td></td><td></td><td></td></tr></table>
|
table
|
37.4
|
monetaryItemType
|
table: <entity> 37.4 </entity> <entity type> monetaryItemType </entity type> <context> 2020-2022 Virginia Triennial Under-Earnings | 26.0 | 37.4 | 3 years </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Virginia - earns a return</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>147.4</td><td></td><td></td><td>1 year</td></tr><tr><td>Under-recovered Fuel Costs, West Virginia - does not earn a return</td><td></td><td>—</td><td></td><td></td><td>8.0</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>155.4</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>0.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>1.1</td><td></td><td></td><td>0.6</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>282.1</td><td></td><td></td><td>25.9</td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - West Virginia</td><td></td><td>144.2</td><td></td><td></td><td>91.5</td><td></td><td></td><td></td></tr><tr><td>2024-2025 Virginia Under-Earnings</td><td></td><td>78.4</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Pension Settlement</td><td></td><td>17.8</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>11.9</td><td></td><td></td><td>7.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>534.4</td><td></td><td></td><td>124.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>535.5</td><td></td><td></td><td>125.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - West Virginia</td><td></td><td>154.1</td><td></td><td></td><td>154.2</td><td></td><td></td><td>10 years</td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>68.0</td><td></td><td></td><td>72.0</td><td></td><td></td><td>19 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - Virginia</td><td></td><td>—</td><td></td><td></td><td>107.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.2</td><td></td><td></td><td>7.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>227.3</td><td></td><td></td><td>340.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs</td><td></td><td>307.5</td><td></td><td></td><td>324.7</td><td></td><td></td><td>15 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>107.9</td><td></td><td></td><td>115.8</td><td></td><td></td><td>12 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>67.0</td><td></td><td></td><td>70.7</td><td></td><td></td><td>21 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2020-2022 Virginia Triennial Under-Earnings</td><td></td><td>26.0</td><td></td><td></td><td>37.4</td><td></td><td></td><td>3 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>14.2</td><td></td><td></td><td>15.0</td><td></td><td></td><td>2 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>13.2</td><td></td><td></td><td>14.9</td><td></td><td></td><td>3 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Vegetation Management Program - West Virginia</td><td></td><td>11.9</td><td></td><td></td><td>12.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Virginia Generation Rate Adjustment Clause</td><td></td><td>11.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Virginia Excess SO 2 Allowance Inventory - Virginia</td><td></td><td>10.5</td><td></td><td></td><td>11.8</td><td></td><td></td><td>8 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>3.4</td><td></td><td></td><td>25.5</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>—</td><td></td><td></td><td>21.9</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>30.0</td><td></td><td></td><td>27.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>603.2</td><td></td><td></td><td>689.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>830.5</td><td></td><td></td><td>1,029.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>1,366.0</td><td></td><td></td><td>$</td><td>1,155.1</td><td></td><td></td><td></td></tr></table>
|
table
|
14.2
|
monetaryItemType
|
table: <entity> 14.2 </entity> <entity type> monetaryItemType </entity type> <context> Peak Demand Reduction/Energy Efficiency | 14.2 | 15.0 | 2 years </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Virginia - earns a return</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>147.4</td><td></td><td></td><td>1 year</td></tr><tr><td>Under-recovered Fuel Costs, West Virginia - does not earn a return</td><td></td><td>—</td><td></td><td></td><td>8.0</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>155.4</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>0.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>1.1</td><td></td><td></td><td>0.6</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>282.1</td><td></td><td></td><td>25.9</td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - West Virginia</td><td></td><td>144.2</td><td></td><td></td><td>91.5</td><td></td><td></td><td></td></tr><tr><td>2024-2025 Virginia Under-Earnings</td><td></td><td>78.4</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Pension Settlement</td><td></td><td>17.8</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>11.9</td><td></td><td></td><td>7.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>534.4</td><td></td><td></td><td>124.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>535.5</td><td></td><td></td><td>125.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - West Virginia</td><td></td><td>154.1</td><td></td><td></td><td>154.2</td><td></td><td></td><td>10 years</td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>68.0</td><td></td><td></td><td>72.0</td><td></td><td></td><td>19 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - Virginia</td><td></td><td>—</td><td></td><td></td><td>107.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.2</td><td></td><td></td><td>7.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>227.3</td><td></td><td></td><td>340.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs</td><td></td><td>307.5</td><td></td><td></td><td>324.7</td><td></td><td></td><td>15 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>107.9</td><td></td><td></td><td>115.8</td><td></td><td></td><td>12 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>67.0</td><td></td><td></td><td>70.7</td><td></td><td></td><td>21 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2020-2022 Virginia Triennial Under-Earnings</td><td></td><td>26.0</td><td></td><td></td><td>37.4</td><td></td><td></td><td>3 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>14.2</td><td></td><td></td><td>15.0</td><td></td><td></td><td>2 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>13.2</td><td></td><td></td><td>14.9</td><td></td><td></td><td>3 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Vegetation Management Program - West Virginia</td><td></td><td>11.9</td><td></td><td></td><td>12.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Virginia Generation Rate Adjustment Clause</td><td></td><td>11.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Virginia Excess SO 2 Allowance Inventory - Virginia</td><td></td><td>10.5</td><td></td><td></td><td>11.8</td><td></td><td></td><td>8 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>3.4</td><td></td><td></td><td>25.5</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>—</td><td></td><td></td><td>21.9</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>30.0</td><td></td><td></td><td>27.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>603.2</td><td></td><td></td><td>689.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>830.5</td><td></td><td></td><td>1,029.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>1,366.0</td><td></td><td></td><td>$</td><td>1,155.1</td><td></td><td></td><td></td></tr></table>
|
table
|
15.0
|
monetaryItemType
|
table: <entity> 15.0 </entity> <entity type> monetaryItemType </entity type> <context> Peak Demand Reduction/Energy Efficiency | 14.2 | 15.0 | 2 years </context>
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us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Virginia - earns a return</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>147.4</td><td></td><td></td><td>1 year</td></tr><tr><td>Under-recovered Fuel Costs, West Virginia - does not earn a return</td><td></td><td>—</td><td></td><td></td><td>8.0</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>155.4</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>0.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>1.1</td><td></td><td></td><td>0.6</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>282.1</td><td></td><td></td><td>25.9</td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - West Virginia</td><td></td><td>144.2</td><td></td><td></td><td>91.5</td><td></td><td></td><td></td></tr><tr><td>2024-2025 Virginia Under-Earnings</td><td></td><td>78.4</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Pension Settlement</td><td></td><td>17.8</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>11.9</td><td></td><td></td><td>7.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>534.4</td><td></td><td></td><td>124.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>535.5</td><td></td><td></td><td>125.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - West Virginia</td><td></td><td>154.1</td><td></td><td></td><td>154.2</td><td></td><td></td><td>10 years</td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>68.0</td><td></td><td></td><td>72.0</td><td></td><td></td><td>19 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - Virginia</td><td></td><td>—</td><td></td><td></td><td>107.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.2</td><td></td><td></td><td>7.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>227.3</td><td></td><td></td><td>340.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs</td><td></td><td>307.5</td><td></td><td></td><td>324.7</td><td></td><td></td><td>15 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>107.9</td><td></td><td></td><td>115.8</td><td></td><td></td><td>12 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>67.0</td><td></td><td></td><td>70.7</td><td></td><td></td><td>21 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2020-2022 Virginia Triennial Under-Earnings</td><td></td><td>26.0</td><td></td><td></td><td>37.4</td><td></td><td></td><td>3 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>14.2</td><td></td><td></td><td>15.0</td><td></td><td></td><td>2 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>13.2</td><td></td><td></td><td>14.9</td><td></td><td></td><td>3 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Vegetation Management Program - West Virginia</td><td></td><td>11.9</td><td></td><td></td><td>12.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Virginia Generation Rate Adjustment Clause</td><td></td><td>11.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Virginia Excess SO 2 Allowance Inventory - Virginia</td><td></td><td>10.5</td><td></td><td></td><td>11.8</td><td></td><td></td><td>8 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>3.4</td><td></td><td></td><td>25.5</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>—</td><td></td><td></td><td>21.9</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>30.0</td><td></td><td></td><td>27.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>603.2</td><td></td><td></td><td>689.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>830.5</td><td></td><td></td><td>1,029.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>1,366.0</td><td></td><td></td><td>$</td><td>1,155.1</td><td></td><td></td><td></td></tr></table>
|
table
|
13.2
|
monetaryItemType
|
table: <entity> 13.2 </entity> <entity type> monetaryItemType </entity type> <context> Postemployment Benefits | 13.2 | 14.9 | 3 years </context>
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us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Virginia - earns a return</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>147.4</td><td></td><td></td><td>1 year</td></tr><tr><td>Under-recovered Fuel Costs, West Virginia - does not earn a return</td><td></td><td>—</td><td></td><td></td><td>8.0</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>155.4</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>0.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>1.1</td><td></td><td></td><td>0.6</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>282.1</td><td></td><td></td><td>25.9</td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - West Virginia</td><td></td><td>144.2</td><td></td><td></td><td>91.5</td><td></td><td></td><td></td></tr><tr><td>2024-2025 Virginia Under-Earnings</td><td></td><td>78.4</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Pension Settlement</td><td></td><td>17.8</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>11.9</td><td></td><td></td><td>7.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>534.4</td><td></td><td></td><td>124.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>535.5</td><td></td><td></td><td>125.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - West Virginia</td><td></td><td>154.1</td><td></td><td></td><td>154.2</td><td></td><td></td><td>10 years</td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>68.0</td><td></td><td></td><td>72.0</td><td></td><td></td><td>19 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - Virginia</td><td></td><td>—</td><td></td><td></td><td>107.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.2</td><td></td><td></td><td>7.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>227.3</td><td></td><td></td><td>340.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs</td><td></td><td>307.5</td><td></td><td></td><td>324.7</td><td></td><td></td><td>15 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>107.9</td><td></td><td></td><td>115.8</td><td></td><td></td><td>12 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>67.0</td><td></td><td></td><td>70.7</td><td></td><td></td><td>21 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2020-2022 Virginia Triennial Under-Earnings</td><td></td><td>26.0</td><td></td><td></td><td>37.4</td><td></td><td></td><td>3 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>14.2</td><td></td><td></td><td>15.0</td><td></td><td></td><td>2 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>13.2</td><td></td><td></td><td>14.9</td><td></td><td></td><td>3 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Vegetation Management Program - West Virginia</td><td></td><td>11.9</td><td></td><td></td><td>12.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Virginia Generation Rate Adjustment Clause</td><td></td><td>11.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Virginia Excess SO 2 Allowance Inventory - Virginia</td><td></td><td>10.5</td><td></td><td></td><td>11.8</td><td></td><td></td><td>8 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>3.4</td><td></td><td></td><td>25.5</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>—</td><td></td><td></td><td>21.9</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>30.0</td><td></td><td></td><td>27.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>603.2</td><td></td><td></td><td>689.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>830.5</td><td></td><td></td><td>1,029.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>1,366.0</td><td></td><td></td><td>$</td><td>1,155.1</td><td></td><td></td><td></td></tr></table>
|
table
|
14.9
|
monetaryItemType
|
table: <entity> 14.9 </entity> <entity type> monetaryItemType </entity type> <context> Postemployment Benefits | 13.2 | 14.9 | 3 years </context>
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us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Virginia - earns a return</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>147.4</td><td></td><td></td><td>1 year</td></tr><tr><td>Under-recovered Fuel Costs, West Virginia - does not earn a return</td><td></td><td>—</td><td></td><td></td><td>8.0</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>155.4</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>0.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>1.1</td><td></td><td></td><td>0.6</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>282.1</td><td></td><td></td><td>25.9</td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - West Virginia</td><td></td><td>144.2</td><td></td><td></td><td>91.5</td><td></td><td></td><td></td></tr><tr><td>2024-2025 Virginia Under-Earnings</td><td></td><td>78.4</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Pension Settlement</td><td></td><td>17.8</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>11.9</td><td></td><td></td><td>7.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>534.4</td><td></td><td></td><td>124.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>535.5</td><td></td><td></td><td>125.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - West Virginia</td><td></td><td>154.1</td><td></td><td></td><td>154.2</td><td></td><td></td><td>10 years</td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>68.0</td><td></td><td></td><td>72.0</td><td></td><td></td><td>19 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - Virginia</td><td></td><td>—</td><td></td><td></td><td>107.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.2</td><td></td><td></td><td>7.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>227.3</td><td></td><td></td><td>340.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs</td><td></td><td>307.5</td><td></td><td></td><td>324.7</td><td></td><td></td><td>15 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>107.9</td><td></td><td></td><td>115.8</td><td></td><td></td><td>12 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>67.0</td><td></td><td></td><td>70.7</td><td></td><td></td><td>21 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2020-2022 Virginia Triennial Under-Earnings</td><td></td><td>26.0</td><td></td><td></td><td>37.4</td><td></td><td></td><td>3 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>14.2</td><td></td><td></td><td>15.0</td><td></td><td></td><td>2 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>13.2</td><td></td><td></td><td>14.9</td><td></td><td></td><td>3 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Vegetation Management Program - West Virginia</td><td></td><td>11.9</td><td></td><td></td><td>12.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Virginia Generation Rate Adjustment Clause</td><td></td><td>11.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Virginia Excess SO 2 Allowance Inventory - Virginia</td><td></td><td>10.5</td><td></td><td></td><td>11.8</td><td></td><td></td><td>8 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>3.4</td><td></td><td></td><td>25.5</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>—</td><td></td><td></td><td>21.9</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>30.0</td><td></td><td></td><td>27.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>603.2</td><td></td><td></td><td>689.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>830.5</td><td></td><td></td><td>1,029.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>1,366.0</td><td></td><td></td><td>$</td><td>1,155.1</td><td></td><td></td><td></td></tr></table>
|
table
|
12.9
|
monetaryItemType
|
table: <entity> 12.9 </entity> <entity type> monetaryItemType </entity type> <context> Vegetation Management Program - West Virginia | 11.9 | 12.9 | 2 years </context>
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us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Virginia - earns a return</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>147.4</td><td></td><td></td><td>1 year</td></tr><tr><td>Under-recovered Fuel Costs, West Virginia - does not earn a return</td><td></td><td>—</td><td></td><td></td><td>8.0</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>155.4</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>0.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>1.1</td><td></td><td></td><td>0.6</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>282.1</td><td></td><td></td><td>25.9</td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - West Virginia</td><td></td><td>144.2</td><td></td><td></td><td>91.5</td><td></td><td></td><td></td></tr><tr><td>2024-2025 Virginia Under-Earnings</td><td></td><td>78.4</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Pension Settlement</td><td></td><td>17.8</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>11.9</td><td></td><td></td><td>7.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>534.4</td><td></td><td></td><td>124.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>535.5</td><td></td><td></td><td>125.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - West Virginia</td><td></td><td>154.1</td><td></td><td></td><td>154.2</td><td></td><td></td><td>10 years</td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>68.0</td><td></td><td></td><td>72.0</td><td></td><td></td><td>19 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - Virginia</td><td></td><td>—</td><td></td><td></td><td>107.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.2</td><td></td><td></td><td>7.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>227.3</td><td></td><td></td><td>340.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs</td><td></td><td>307.5</td><td></td><td></td><td>324.7</td><td></td><td></td><td>15 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>107.9</td><td></td><td></td><td>115.8</td><td></td><td></td><td>12 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>67.0</td><td></td><td></td><td>70.7</td><td></td><td></td><td>21 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2020-2022 Virginia Triennial Under-Earnings</td><td></td><td>26.0</td><td></td><td></td><td>37.4</td><td></td><td></td><td>3 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>14.2</td><td></td><td></td><td>15.0</td><td></td><td></td><td>2 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>13.2</td><td></td><td></td><td>14.9</td><td></td><td></td><td>3 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Vegetation Management Program - West Virginia</td><td></td><td>11.9</td><td></td><td></td><td>12.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Virginia Generation Rate Adjustment Clause</td><td></td><td>11.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Virginia Excess SO 2 Allowance Inventory - Virginia</td><td></td><td>10.5</td><td></td><td></td><td>11.8</td><td></td><td></td><td>8 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>3.4</td><td></td><td></td><td>25.5</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>—</td><td></td><td></td><td>21.9</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>30.0</td><td></td><td></td><td>27.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>603.2</td><td></td><td></td><td>689.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>830.5</td><td></td><td></td><td>1,029.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>1,366.0</td><td></td><td></td><td>$</td><td>1,155.1</td><td></td><td></td><td></td></tr></table>
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table
|
11.6
|
monetaryItemType
|
table: <entity> 11.6 </entity> <entity type> monetaryItemType </entity type> <context> Virginia Generation Rate Adjustment Clause | 11.6 | 10.9 | 2 years </context>
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us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Virginia - earns a return</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>147.4</td><td></td><td></td><td>1 year</td></tr><tr><td>Under-recovered Fuel Costs, West Virginia - does not earn a return</td><td></td><td>—</td><td></td><td></td><td>8.0</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>155.4</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>0.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>1.1</td><td></td><td></td><td>0.6</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>282.1</td><td></td><td></td><td>25.9</td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - West Virginia</td><td></td><td>144.2</td><td></td><td></td><td>91.5</td><td></td><td></td><td></td></tr><tr><td>2024-2025 Virginia Under-Earnings</td><td></td><td>78.4</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Pension Settlement</td><td></td><td>17.8</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>11.9</td><td></td><td></td><td>7.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>534.4</td><td></td><td></td><td>124.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>535.5</td><td></td><td></td><td>125.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - West Virginia</td><td></td><td>154.1</td><td></td><td></td><td>154.2</td><td></td><td></td><td>10 years</td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>68.0</td><td></td><td></td><td>72.0</td><td></td><td></td><td>19 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - Virginia</td><td></td><td>—</td><td></td><td></td><td>107.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.2</td><td></td><td></td><td>7.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>227.3</td><td></td><td></td><td>340.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs</td><td></td><td>307.5</td><td></td><td></td><td>324.7</td><td></td><td></td><td>15 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>107.9</td><td></td><td></td><td>115.8</td><td></td><td></td><td>12 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>67.0</td><td></td><td></td><td>70.7</td><td></td><td></td><td>21 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2020-2022 Virginia Triennial Under-Earnings</td><td></td><td>26.0</td><td></td><td></td><td>37.4</td><td></td><td></td><td>3 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>14.2</td><td></td><td></td><td>15.0</td><td></td><td></td><td>2 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>13.2</td><td></td><td></td><td>14.9</td><td></td><td></td><td>3 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Vegetation Management Program - West Virginia</td><td></td><td>11.9</td><td></td><td></td><td>12.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Virginia Generation Rate Adjustment Clause</td><td></td><td>11.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Virginia Excess SO 2 Allowance Inventory - Virginia</td><td></td><td>10.5</td><td></td><td></td><td>11.8</td><td></td><td></td><td>8 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>3.4</td><td></td><td></td><td>25.5</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>—</td><td></td><td></td><td>21.9</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>30.0</td><td></td><td></td><td>27.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>603.2</td><td></td><td></td><td>689.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>830.5</td><td></td><td></td><td>1,029.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>1,366.0</td><td></td><td></td><td>$</td><td>1,155.1</td><td></td><td></td><td></td></tr></table>
|
table
|
10.9
|
monetaryItemType
|
table: <entity> 10.9 </entity> <entity type> monetaryItemType </entity type> <context> Virginia Generation Rate Adjustment Clause | 11.6 | 10.9 | 2 years </context>
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us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Virginia - earns a return</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>147.4</td><td></td><td></td><td>1 year</td></tr><tr><td>Under-recovered Fuel Costs, West Virginia - does not earn a return</td><td></td><td>—</td><td></td><td></td><td>8.0</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>155.4</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>0.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>1.1</td><td></td><td></td><td>0.6</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>282.1</td><td></td><td></td><td>25.9</td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - West Virginia</td><td></td><td>144.2</td><td></td><td></td><td>91.5</td><td></td><td></td><td></td></tr><tr><td>2024-2025 Virginia Under-Earnings</td><td></td><td>78.4</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Pension Settlement</td><td></td><td>17.8</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>11.9</td><td></td><td></td><td>7.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>534.4</td><td></td><td></td><td>124.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>535.5</td><td></td><td></td><td>125.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - West Virginia</td><td></td><td>154.1</td><td></td><td></td><td>154.2</td><td></td><td></td><td>10 years</td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>68.0</td><td></td><td></td><td>72.0</td><td></td><td></td><td>19 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - Virginia</td><td></td><td>—</td><td></td><td></td><td>107.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.2</td><td></td><td></td><td>7.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>227.3</td><td></td><td></td><td>340.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs</td><td></td><td>307.5</td><td></td><td></td><td>324.7</td><td></td><td></td><td>15 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>107.9</td><td></td><td></td><td>115.8</td><td></td><td></td><td>12 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>67.0</td><td></td><td></td><td>70.7</td><td></td><td></td><td>21 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2020-2022 Virginia Triennial Under-Earnings</td><td></td><td>26.0</td><td></td><td></td><td>37.4</td><td></td><td></td><td>3 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>14.2</td><td></td><td></td><td>15.0</td><td></td><td></td><td>2 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>13.2</td><td></td><td></td><td>14.9</td><td></td><td></td><td>3 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Vegetation Management Program - West Virginia</td><td></td><td>11.9</td><td></td><td></td><td>12.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Virginia Generation Rate Adjustment Clause</td><td></td><td>11.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Virginia Excess SO 2 Allowance Inventory - Virginia</td><td></td><td>10.5</td><td></td><td></td><td>11.8</td><td></td><td></td><td>8 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>3.4</td><td></td><td></td><td>25.5</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>—</td><td></td><td></td><td>21.9</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>30.0</td><td></td><td></td><td>27.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>603.2</td><td></td><td></td><td>689.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>830.5</td><td></td><td></td><td>1,029.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>1,366.0</td><td></td><td></td><td>$</td><td>1,155.1</td><td></td><td></td><td></td></tr></table>
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table
|
10.5
|
monetaryItemType
|
table: <entity> 10.5 </entity> <entity type> monetaryItemType </entity type> <context> Excess SO 2 Allowance Inventory - Virginia Excess SO 2 Allowance Inventory - Virginia | 10.5 | 11.8 | 8 years </context>
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us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Virginia - earns a return</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>147.4</td><td></td><td></td><td>1 year</td></tr><tr><td>Under-recovered Fuel Costs, West Virginia - does not earn a return</td><td></td><td>—</td><td></td><td></td><td>8.0</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>155.4</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>0.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>1.1</td><td></td><td></td><td>0.6</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>282.1</td><td></td><td></td><td>25.9</td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - West Virginia</td><td></td><td>144.2</td><td></td><td></td><td>91.5</td><td></td><td></td><td></td></tr><tr><td>2024-2025 Virginia Under-Earnings</td><td></td><td>78.4</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Pension Settlement</td><td></td><td>17.8</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>11.9</td><td></td><td></td><td>7.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>534.4</td><td></td><td></td><td>124.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>535.5</td><td></td><td></td><td>125.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - West Virginia</td><td></td><td>154.1</td><td></td><td></td><td>154.2</td><td></td><td></td><td>10 years</td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>68.0</td><td></td><td></td><td>72.0</td><td></td><td></td><td>19 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - Virginia</td><td></td><td>—</td><td></td><td></td><td>107.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.2</td><td></td><td></td><td>7.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>227.3</td><td></td><td></td><td>340.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs</td><td></td><td>307.5</td><td></td><td></td><td>324.7</td><td></td><td></td><td>15 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>107.9</td><td></td><td></td><td>115.8</td><td></td><td></td><td>12 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>67.0</td><td></td><td></td><td>70.7</td><td></td><td></td><td>21 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2020-2022 Virginia Triennial Under-Earnings</td><td></td><td>26.0</td><td></td><td></td><td>37.4</td><td></td><td></td><td>3 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>14.2</td><td></td><td></td><td>15.0</td><td></td><td></td><td>2 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>13.2</td><td></td><td></td><td>14.9</td><td></td><td></td><td>3 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Vegetation Management Program - West Virginia</td><td></td><td>11.9</td><td></td><td></td><td>12.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Virginia Generation Rate Adjustment Clause</td><td></td><td>11.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Virginia Excess SO 2 Allowance Inventory - Virginia</td><td></td><td>10.5</td><td></td><td></td><td>11.8</td><td></td><td></td><td>8 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>3.4</td><td></td><td></td><td>25.5</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>—</td><td></td><td></td><td>21.9</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>30.0</td><td></td><td></td><td>27.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>603.2</td><td></td><td></td><td>689.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>830.5</td><td></td><td></td><td>1,029.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>1,366.0</td><td></td><td></td><td>$</td><td>1,155.1</td><td></td><td></td><td></td></tr></table>
|
table
|
11.8
|
monetaryItemType
|
table: <entity> 11.8 </entity> <entity type> monetaryItemType </entity type> <context> Excess SO 2 Allowance Inventory - Virginia Excess SO 2 Allowance Inventory - Virginia | 10.5 | 11.8 | 8 years </context>
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us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Virginia - earns a return</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>147.4</td><td></td><td></td><td>1 year</td></tr><tr><td>Under-recovered Fuel Costs, West Virginia - does not earn a return</td><td></td><td>—</td><td></td><td></td><td>8.0</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>155.4</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>0.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>1.1</td><td></td><td></td><td>0.6</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>282.1</td><td></td><td></td><td>25.9</td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - West Virginia</td><td></td><td>144.2</td><td></td><td></td><td>91.5</td><td></td><td></td><td></td></tr><tr><td>2024-2025 Virginia Under-Earnings</td><td></td><td>78.4</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Pension Settlement</td><td></td><td>17.8</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>11.9</td><td></td><td></td><td>7.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>534.4</td><td></td><td></td><td>124.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>535.5</td><td></td><td></td><td>125.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - West Virginia</td><td></td><td>154.1</td><td></td><td></td><td>154.2</td><td></td><td></td><td>10 years</td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>68.0</td><td></td><td></td><td>72.0</td><td></td><td></td><td>19 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - Virginia</td><td></td><td>—</td><td></td><td></td><td>107.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.2</td><td></td><td></td><td>7.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>227.3</td><td></td><td></td><td>340.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs</td><td></td><td>307.5</td><td></td><td></td><td>324.7</td><td></td><td></td><td>15 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>107.9</td><td></td><td></td><td>115.8</td><td></td><td></td><td>12 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>67.0</td><td></td><td></td><td>70.7</td><td></td><td></td><td>21 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2020-2022 Virginia Triennial Under-Earnings</td><td></td><td>26.0</td><td></td><td></td><td>37.4</td><td></td><td></td><td>3 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>14.2</td><td></td><td></td><td>15.0</td><td></td><td></td><td>2 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>13.2</td><td></td><td></td><td>14.9</td><td></td><td></td><td>3 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Vegetation Management Program - West Virginia</td><td></td><td>11.9</td><td></td><td></td><td>12.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Virginia Generation Rate Adjustment Clause</td><td></td><td>11.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Virginia Excess SO 2 Allowance Inventory - Virginia</td><td></td><td>10.5</td><td></td><td></td><td>11.8</td><td></td><td></td><td>8 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>3.4</td><td></td><td></td><td>25.5</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>—</td><td></td><td></td><td>21.9</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>30.0</td><td></td><td></td><td>27.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>603.2</td><td></td><td></td><td>689.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>830.5</td><td></td><td></td><td>1,029.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>1,366.0</td><td></td><td></td><td>$</td><td>1,155.1</td><td></td><td></td><td></td></tr></table>
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table
|
3.4
|
monetaryItemType
|
table: <entity> 3.4 </entity> <entity type> monetaryItemType </entity type> <context> Virginia Transmission Rate Adjustment Clause | 3.4 | 25.5 | 2 years </context>
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us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Virginia - earns a return</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>147.4</td><td></td><td></td><td>1 year</td></tr><tr><td>Under-recovered Fuel Costs, West Virginia - does not earn a return</td><td></td><td>—</td><td></td><td></td><td>8.0</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>155.4</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>0.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>1.1</td><td></td><td></td><td>0.6</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>282.1</td><td></td><td></td><td>25.9</td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - West Virginia</td><td></td><td>144.2</td><td></td><td></td><td>91.5</td><td></td><td></td><td></td></tr><tr><td>2024-2025 Virginia Under-Earnings</td><td></td><td>78.4</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Pension Settlement</td><td></td><td>17.8</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>11.9</td><td></td><td></td><td>7.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>534.4</td><td></td><td></td><td>124.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>535.5</td><td></td><td></td><td>125.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - West Virginia</td><td></td><td>154.1</td><td></td><td></td><td>154.2</td><td></td><td></td><td>10 years</td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>68.0</td><td></td><td></td><td>72.0</td><td></td><td></td><td>19 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - Virginia</td><td></td><td>—</td><td></td><td></td><td>107.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.2</td><td></td><td></td><td>7.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>227.3</td><td></td><td></td><td>340.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs</td><td></td><td>307.5</td><td></td><td></td><td>324.7</td><td></td><td></td><td>15 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>107.9</td><td></td><td></td><td>115.8</td><td></td><td></td><td>12 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>67.0</td><td></td><td></td><td>70.7</td><td></td><td></td><td>21 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2020-2022 Virginia Triennial Under-Earnings</td><td></td><td>26.0</td><td></td><td></td><td>37.4</td><td></td><td></td><td>3 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>14.2</td><td></td><td></td><td>15.0</td><td></td><td></td><td>2 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>13.2</td><td></td><td></td><td>14.9</td><td></td><td></td><td>3 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Vegetation Management Program - West Virginia</td><td></td><td>11.9</td><td></td><td></td><td>12.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Virginia Generation Rate Adjustment Clause</td><td></td><td>11.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Virginia Excess SO 2 Allowance Inventory - Virginia</td><td></td><td>10.5</td><td></td><td></td><td>11.8</td><td></td><td></td><td>8 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>3.4</td><td></td><td></td><td>25.5</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>—</td><td></td><td></td><td>21.9</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>30.0</td><td></td><td></td><td>27.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>603.2</td><td></td><td></td><td>689.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>830.5</td><td></td><td></td><td>1,029.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>1,366.0</td><td></td><td></td><td>$</td><td>1,155.1</td><td></td><td></td><td></td></tr></table>
|
table
|
25.5
|
monetaryItemType
|
table: <entity> 25.5 </entity> <entity type> monetaryItemType </entity type> <context> Virginia Transmission Rate Adjustment Clause | 3.4 | 25.5 | 2 years </context>
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us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Virginia - earns a return</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>147.4</td><td></td><td></td><td>1 year</td></tr><tr><td>Under-recovered Fuel Costs, West Virginia - does not earn a return</td><td></td><td>—</td><td></td><td></td><td>8.0</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>155.4</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>0.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>1.1</td><td></td><td></td><td>0.6</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>282.1</td><td></td><td></td><td>25.9</td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - West Virginia</td><td></td><td>144.2</td><td></td><td></td><td>91.5</td><td></td><td></td><td></td></tr><tr><td>2024-2025 Virginia Under-Earnings</td><td></td><td>78.4</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Pension Settlement</td><td></td><td>17.8</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>11.9</td><td></td><td></td><td>7.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>534.4</td><td></td><td></td><td>124.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>535.5</td><td></td><td></td><td>125.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - West Virginia</td><td></td><td>154.1</td><td></td><td></td><td>154.2</td><td></td><td></td><td>10 years</td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>68.0</td><td></td><td></td><td>72.0</td><td></td><td></td><td>19 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - Virginia</td><td></td><td>—</td><td></td><td></td><td>107.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.2</td><td></td><td></td><td>7.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>227.3</td><td></td><td></td><td>340.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs</td><td></td><td>307.5</td><td></td><td></td><td>324.7</td><td></td><td></td><td>15 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>107.9</td><td></td><td></td><td>115.8</td><td></td><td></td><td>12 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>67.0</td><td></td><td></td><td>70.7</td><td></td><td></td><td>21 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2020-2022 Virginia Triennial Under-Earnings</td><td></td><td>26.0</td><td></td><td></td><td>37.4</td><td></td><td></td><td>3 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>14.2</td><td></td><td></td><td>15.0</td><td></td><td></td><td>2 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>13.2</td><td></td><td></td><td>14.9</td><td></td><td></td><td>3 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Vegetation Management Program - West Virginia</td><td></td><td>11.9</td><td></td><td></td><td>12.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Virginia Generation Rate Adjustment Clause</td><td></td><td>11.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Virginia Excess SO 2 Allowance Inventory - Virginia</td><td></td><td>10.5</td><td></td><td></td><td>11.8</td><td></td><td></td><td>8 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>3.4</td><td></td><td></td><td>25.5</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>—</td><td></td><td></td><td>21.9</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>30.0</td><td></td><td></td><td>27.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>603.2</td><td></td><td></td><td>689.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>830.5</td><td></td><td></td><td>1,029.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>1,366.0</td><td></td><td></td><td>$</td><td>1,155.1</td><td></td><td></td><td></td></tr></table>
|
table
|
21.9
|
monetaryItemType
|
table: <entity> 21.9 </entity> <entity type> monetaryItemType </entity type> <context> Unrealized Loss on Forward Commitments | — | 21.9 </context>
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us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Virginia - earns a return</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>147.4</td><td></td><td></td><td>1 year</td></tr><tr><td>Under-recovered Fuel Costs, West Virginia - does not earn a return</td><td></td><td>—</td><td></td><td></td><td>8.0</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>155.4</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>0.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>1.1</td><td></td><td></td><td>0.6</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>282.1</td><td></td><td></td><td>25.9</td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - West Virginia</td><td></td><td>144.2</td><td></td><td></td><td>91.5</td><td></td><td></td><td></td></tr><tr><td>2024-2025 Virginia Under-Earnings</td><td></td><td>78.4</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Pension Settlement</td><td></td><td>17.8</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>11.9</td><td></td><td></td><td>7.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>534.4</td><td></td><td></td><td>124.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>535.5</td><td></td><td></td><td>125.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - West Virginia</td><td></td><td>154.1</td><td></td><td></td><td>154.2</td><td></td><td></td><td>10 years</td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>68.0</td><td></td><td></td><td>72.0</td><td></td><td></td><td>19 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - Virginia</td><td></td><td>—</td><td></td><td></td><td>107.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.2</td><td></td><td></td><td>7.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>227.3</td><td></td><td></td><td>340.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs</td><td></td><td>307.5</td><td></td><td></td><td>324.7</td><td></td><td></td><td>15 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>107.9</td><td></td><td></td><td>115.8</td><td></td><td></td><td>12 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>67.0</td><td></td><td></td><td>70.7</td><td></td><td></td><td>21 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2020-2022 Virginia Triennial Under-Earnings</td><td></td><td>26.0</td><td></td><td></td><td>37.4</td><td></td><td></td><td>3 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>14.2</td><td></td><td></td><td>15.0</td><td></td><td></td><td>2 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>13.2</td><td></td><td></td><td>14.9</td><td></td><td></td><td>3 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Vegetation Management Program - West Virginia</td><td></td><td>11.9</td><td></td><td></td><td>12.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Virginia Generation Rate Adjustment Clause</td><td></td><td>11.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Virginia Excess SO 2 Allowance Inventory - Virginia</td><td></td><td>10.5</td><td></td><td></td><td>11.8</td><td></td><td></td><td>8 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>3.4</td><td></td><td></td><td>25.5</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>—</td><td></td><td></td><td>21.9</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>30.0</td><td></td><td></td><td>27.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>603.2</td><td></td><td></td><td>689.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>830.5</td><td></td><td></td><td>1,029.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>1,366.0</td><td></td><td></td><td>$</td><td>1,155.1</td><td></td><td></td><td></td></tr></table>
|
table
|
30.0
|
monetaryItemType
|
table: <entity> 30.0 </entity> <entity type> monetaryItemType </entity type> <context> Other Regulatory Assets Approved for Recovery | 30.0 | 27.8 | various </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Virginia - earns a return</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>147.4</td><td></td><td></td><td>1 year</td></tr><tr><td>Under-recovered Fuel Costs, West Virginia - does not earn a return</td><td></td><td>—</td><td></td><td></td><td>8.0</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>155.4</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>0.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>1.1</td><td></td><td></td><td>0.6</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>282.1</td><td></td><td></td><td>25.9</td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - West Virginia</td><td></td><td>144.2</td><td></td><td></td><td>91.5</td><td></td><td></td><td></td></tr><tr><td>2024-2025 Virginia Under-Earnings</td><td></td><td>78.4</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Pension Settlement</td><td></td><td>17.8</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>11.9</td><td></td><td></td><td>7.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>534.4</td><td></td><td></td><td>124.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>535.5</td><td></td><td></td><td>125.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - West Virginia</td><td></td><td>154.1</td><td></td><td></td><td>154.2</td><td></td><td></td><td>10 years</td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>68.0</td><td></td><td></td><td>72.0</td><td></td><td></td><td>19 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - Virginia</td><td></td><td>—</td><td></td><td></td><td>107.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.2</td><td></td><td></td><td>7.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>227.3</td><td></td><td></td><td>340.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs</td><td></td><td>307.5</td><td></td><td></td><td>324.7</td><td></td><td></td><td>15 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>107.9</td><td></td><td></td><td>115.8</td><td></td><td></td><td>12 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>67.0</td><td></td><td></td><td>70.7</td><td></td><td></td><td>21 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2020-2022 Virginia Triennial Under-Earnings</td><td></td><td>26.0</td><td></td><td></td><td>37.4</td><td></td><td></td><td>3 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>14.2</td><td></td><td></td><td>15.0</td><td></td><td></td><td>2 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>13.2</td><td></td><td></td><td>14.9</td><td></td><td></td><td>3 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Vegetation Management Program - West Virginia</td><td></td><td>11.9</td><td></td><td></td><td>12.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Virginia Generation Rate Adjustment Clause</td><td></td><td>11.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Virginia Excess SO 2 Allowance Inventory - Virginia</td><td></td><td>10.5</td><td></td><td></td><td>11.8</td><td></td><td></td><td>8 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>3.4</td><td></td><td></td><td>25.5</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>—</td><td></td><td></td><td>21.9</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>30.0</td><td></td><td></td><td>27.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>603.2</td><td></td><td></td><td>689.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>830.5</td><td></td><td></td><td>1,029.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>1,366.0</td><td></td><td></td><td>$</td><td>1,155.1</td><td></td><td></td><td></td></tr></table>
|
table
|
27.8
|
monetaryItemType
|
table: <entity> 27.8 </entity> <entity type> monetaryItemType </entity type> <context> Other Regulatory Assets Approved for Recovery | 30.0 | 27.8 | various </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Virginia - earns a return</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>147.4</td><td></td><td></td><td>1 year</td></tr><tr><td>Under-recovered Fuel Costs, West Virginia - does not earn a return</td><td></td><td>—</td><td></td><td></td><td>8.0</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>155.4</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>0.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>1.1</td><td></td><td></td><td>0.6</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>282.1</td><td></td><td></td><td>25.9</td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - West Virginia</td><td></td><td>144.2</td><td></td><td></td><td>91.5</td><td></td><td></td><td></td></tr><tr><td>2024-2025 Virginia Under-Earnings</td><td></td><td>78.4</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Pension Settlement</td><td></td><td>17.8</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>11.9</td><td></td><td></td><td>7.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>534.4</td><td></td><td></td><td>124.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>535.5</td><td></td><td></td><td>125.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - West Virginia</td><td></td><td>154.1</td><td></td><td></td><td>154.2</td><td></td><td></td><td>10 years</td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>68.0</td><td></td><td></td><td>72.0</td><td></td><td></td><td>19 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - Virginia</td><td></td><td>—</td><td></td><td></td><td>107.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.2</td><td></td><td></td><td>7.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>227.3</td><td></td><td></td><td>340.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs</td><td></td><td>307.5</td><td></td><td></td><td>324.7</td><td></td><td></td><td>15 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>107.9</td><td></td><td></td><td>115.8</td><td></td><td></td><td>12 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>67.0</td><td></td><td></td><td>70.7</td><td></td><td></td><td>21 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2020-2022 Virginia Triennial Under-Earnings</td><td></td><td>26.0</td><td></td><td></td><td>37.4</td><td></td><td></td><td>3 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>14.2</td><td></td><td></td><td>15.0</td><td></td><td></td><td>2 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>13.2</td><td></td><td></td><td>14.9</td><td></td><td></td><td>3 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Vegetation Management Program - West Virginia</td><td></td><td>11.9</td><td></td><td></td><td>12.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Virginia Generation Rate Adjustment Clause</td><td></td><td>11.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Virginia Excess SO 2 Allowance Inventory - Virginia</td><td></td><td>10.5</td><td></td><td></td><td>11.8</td><td></td><td></td><td>8 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>3.4</td><td></td><td></td><td>25.5</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>—</td><td></td><td></td><td>21.9</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>30.0</td><td></td><td></td><td>27.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>603.2</td><td></td><td></td><td>689.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>830.5</td><td></td><td></td><td>1,029.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>1,366.0</td><td></td><td></td><td>$</td><td>1,155.1</td><td></td><td></td><td></td></tr></table>
|
table
|
603.2
|
monetaryItemType
|
table: <entity> 603.2 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Assets Currently Not Earning a Return | 603.2 | 689.3 </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Virginia - earns a return</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>147.4</td><td></td><td></td><td>1 year</td></tr><tr><td>Under-recovered Fuel Costs, West Virginia - does not earn a return</td><td></td><td>—</td><td></td><td></td><td>8.0</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>155.4</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>0.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>1.1</td><td></td><td></td><td>0.6</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>282.1</td><td></td><td></td><td>25.9</td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - West Virginia</td><td></td><td>144.2</td><td></td><td></td><td>91.5</td><td></td><td></td><td></td></tr><tr><td>2024-2025 Virginia Under-Earnings</td><td></td><td>78.4</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Pension Settlement</td><td></td><td>17.8</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>11.9</td><td></td><td></td><td>7.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>534.4</td><td></td><td></td><td>124.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>535.5</td><td></td><td></td><td>125.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - West Virginia</td><td></td><td>154.1</td><td></td><td></td><td>154.2</td><td></td><td></td><td>10 years</td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>68.0</td><td></td><td></td><td>72.0</td><td></td><td></td><td>19 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - Virginia</td><td></td><td>—</td><td></td><td></td><td>107.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.2</td><td></td><td></td><td>7.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>227.3</td><td></td><td></td><td>340.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs</td><td></td><td>307.5</td><td></td><td></td><td>324.7</td><td></td><td></td><td>15 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>107.9</td><td></td><td></td><td>115.8</td><td></td><td></td><td>12 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>67.0</td><td></td><td></td><td>70.7</td><td></td><td></td><td>21 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2020-2022 Virginia Triennial Under-Earnings</td><td></td><td>26.0</td><td></td><td></td><td>37.4</td><td></td><td></td><td>3 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>14.2</td><td></td><td></td><td>15.0</td><td></td><td></td><td>2 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>13.2</td><td></td><td></td><td>14.9</td><td></td><td></td><td>3 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Vegetation Management Program - West Virginia</td><td></td><td>11.9</td><td></td><td></td><td>12.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Virginia Generation Rate Adjustment Clause</td><td></td><td>11.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Virginia Excess SO 2 Allowance Inventory - Virginia</td><td></td><td>10.5</td><td></td><td></td><td>11.8</td><td></td><td></td><td>8 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>3.4</td><td></td><td></td><td>25.5</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>—</td><td></td><td></td><td>21.9</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>30.0</td><td></td><td></td><td>27.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>603.2</td><td></td><td></td><td>689.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>830.5</td><td></td><td></td><td>1,029.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>1,366.0</td><td></td><td></td><td>$</td><td>1,155.1</td><td></td><td></td><td></td></tr></table>
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table
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689.3
|
monetaryItemType
|
table: <entity> 689.3 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Assets Currently Not Earning a Return | 603.2 | 689.3 </context>
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us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Virginia - earns a return</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>147.4</td><td></td><td></td><td>1 year</td></tr><tr><td>Under-recovered Fuel Costs, West Virginia - does not earn a return</td><td></td><td>—</td><td></td><td></td><td>8.0</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>155.4</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>0.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>1.1</td><td></td><td></td><td>0.6</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>282.1</td><td></td><td></td><td>25.9</td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - West Virginia</td><td></td><td>144.2</td><td></td><td></td><td>91.5</td><td></td><td></td><td></td></tr><tr><td>2024-2025 Virginia Under-Earnings</td><td></td><td>78.4</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Pension Settlement</td><td></td><td>17.8</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>11.9</td><td></td><td></td><td>7.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>534.4</td><td></td><td></td><td>124.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>535.5</td><td></td><td></td><td>125.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - West Virginia</td><td></td><td>154.1</td><td></td><td></td><td>154.2</td><td></td><td></td><td>10 years</td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>68.0</td><td></td><td></td><td>72.0</td><td></td><td></td><td>19 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - Virginia</td><td></td><td>—</td><td></td><td></td><td>107.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.2</td><td></td><td></td><td>7.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>227.3</td><td></td><td></td><td>340.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs</td><td></td><td>307.5</td><td></td><td></td><td>324.7</td><td></td><td></td><td>15 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>107.9</td><td></td><td></td><td>115.8</td><td></td><td></td><td>12 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>67.0</td><td></td><td></td><td>70.7</td><td></td><td></td><td>21 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2020-2022 Virginia Triennial Under-Earnings</td><td></td><td>26.0</td><td></td><td></td><td>37.4</td><td></td><td></td><td>3 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>14.2</td><td></td><td></td><td>15.0</td><td></td><td></td><td>2 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>13.2</td><td></td><td></td><td>14.9</td><td></td><td></td><td>3 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Vegetation Management Program - West Virginia</td><td></td><td>11.9</td><td></td><td></td><td>12.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Virginia Generation Rate Adjustment Clause</td><td></td><td>11.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Virginia Excess SO 2 Allowance Inventory - Virginia</td><td></td><td>10.5</td><td></td><td></td><td>11.8</td><td></td><td></td><td>8 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>3.4</td><td></td><td></td><td>25.5</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>—</td><td></td><td></td><td>21.9</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>30.0</td><td></td><td></td><td>27.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>603.2</td><td></td><td></td><td>689.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>830.5</td><td></td><td></td><td>1,029.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>1,366.0</td><td></td><td></td><td>$</td><td>1,155.1</td><td></td><td></td><td></td></tr></table>
|
table
|
830.5
|
monetaryItemType
|
table: <entity> 830.5 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Assets Approved for Recovery | 830.5 | 1,029.6 </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Virginia - earns a return</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>147.4</td><td></td><td></td><td>1 year</td></tr><tr><td>Under-recovered Fuel Costs, West Virginia - does not earn a return</td><td></td><td>—</td><td></td><td></td><td>8.0</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>155.4</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>0.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>1.1</td><td></td><td></td><td>0.6</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>282.1</td><td></td><td></td><td>25.9</td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - West Virginia</td><td></td><td>144.2</td><td></td><td></td><td>91.5</td><td></td><td></td><td></td></tr><tr><td>2024-2025 Virginia Under-Earnings</td><td></td><td>78.4</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Pension Settlement</td><td></td><td>17.8</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>11.9</td><td></td><td></td><td>7.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>534.4</td><td></td><td></td><td>124.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>535.5</td><td></td><td></td><td>125.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - West Virginia</td><td></td><td>154.1</td><td></td><td></td><td>154.2</td><td></td><td></td><td>10 years</td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>68.0</td><td></td><td></td><td>72.0</td><td></td><td></td><td>19 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - Virginia</td><td></td><td>—</td><td></td><td></td><td>107.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.2</td><td></td><td></td><td>7.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>227.3</td><td></td><td></td><td>340.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs</td><td></td><td>307.5</td><td></td><td></td><td>324.7</td><td></td><td></td><td>15 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>107.9</td><td></td><td></td><td>115.8</td><td></td><td></td><td>12 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>67.0</td><td></td><td></td><td>70.7</td><td></td><td></td><td>21 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2020-2022 Virginia Triennial Under-Earnings</td><td></td><td>26.0</td><td></td><td></td><td>37.4</td><td></td><td></td><td>3 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>14.2</td><td></td><td></td><td>15.0</td><td></td><td></td><td>2 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>13.2</td><td></td><td></td><td>14.9</td><td></td><td></td><td>3 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Vegetation Management Program - West Virginia</td><td></td><td>11.9</td><td></td><td></td><td>12.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Virginia Generation Rate Adjustment Clause</td><td></td><td>11.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Virginia Excess SO 2 Allowance Inventory - Virginia</td><td></td><td>10.5</td><td></td><td></td><td>11.8</td><td></td><td></td><td>8 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>3.4</td><td></td><td></td><td>25.5</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>—</td><td></td><td></td><td>21.9</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>30.0</td><td></td><td></td><td>27.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>603.2</td><td></td><td></td><td>689.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>830.5</td><td></td><td></td><td>1,029.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>1,366.0</td><td></td><td></td><td>$</td><td>1,155.1</td><td></td><td></td><td></td></tr></table>
|
table
|
1029.6
|
monetaryItemType
|
table: <entity> 1029.6 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Assets Approved for Recovery | 830.5 | 1,029.6 </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Virginia - earns a return</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>147.4</td><td></td><td></td><td>1 year</td></tr><tr><td>Under-recovered Fuel Costs, West Virginia - does not earn a return</td><td></td><td>—</td><td></td><td></td><td>8.0</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>155.4</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>0.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>1.1</td><td></td><td></td><td>0.6</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>282.1</td><td></td><td></td><td>25.9</td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - West Virginia</td><td></td><td>144.2</td><td></td><td></td><td>91.5</td><td></td><td></td><td></td></tr><tr><td>2024-2025 Virginia Under-Earnings</td><td></td><td>78.4</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Pension Settlement</td><td></td><td>17.8</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>11.9</td><td></td><td></td><td>7.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>534.4</td><td></td><td></td><td>124.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>535.5</td><td></td><td></td><td>125.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - West Virginia</td><td></td><td>154.1</td><td></td><td></td><td>154.2</td><td></td><td></td><td>10 years</td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>68.0</td><td></td><td></td><td>72.0</td><td></td><td></td><td>19 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - Virginia</td><td></td><td>—</td><td></td><td></td><td>107.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.2</td><td></td><td></td><td>7.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>227.3</td><td></td><td></td><td>340.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs</td><td></td><td>307.5</td><td></td><td></td><td>324.7</td><td></td><td></td><td>15 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>107.9</td><td></td><td></td><td>115.8</td><td></td><td></td><td>12 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>67.0</td><td></td><td></td><td>70.7</td><td></td><td></td><td>21 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2020-2022 Virginia Triennial Under-Earnings</td><td></td><td>26.0</td><td></td><td></td><td>37.4</td><td></td><td></td><td>3 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>14.2</td><td></td><td></td><td>15.0</td><td></td><td></td><td>2 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>13.2</td><td></td><td></td><td>14.9</td><td></td><td></td><td>3 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Vegetation Management Program - West Virginia</td><td></td><td>11.9</td><td></td><td></td><td>12.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Virginia Generation Rate Adjustment Clause</td><td></td><td>11.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Virginia Excess SO 2 Allowance Inventory - Virginia</td><td></td><td>10.5</td><td></td><td></td><td>11.8</td><td></td><td></td><td>8 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>3.4</td><td></td><td></td><td>25.5</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>—</td><td></td><td></td><td>21.9</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>30.0</td><td></td><td></td><td>27.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>603.2</td><td></td><td></td><td>689.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>830.5</td><td></td><td></td><td>1,029.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>1,366.0</td><td></td><td></td><td>$</td><td>1,155.1</td><td></td><td></td><td></td></tr></table>
|
table
|
1366.0
|
monetaryItemType
|
table: <entity> 1366.0 </entity> <entity type> monetaryItemType </entity type> <context> Total Noncurrent Regulatory Assets | $ | 1,366.0 | $ | 1,155.1 </context>
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us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Virginia - earns a return</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>147.4</td><td></td><td></td><td>1 year</td></tr><tr><td>Under-recovered Fuel Costs, West Virginia - does not earn a return</td><td></td><td>—</td><td></td><td></td><td>8.0</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>148.1</td><td></td><td></td><td>$</td><td>155.4</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>1.1</td><td></td><td></td><td>$</td><td>0.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>1.1</td><td></td><td></td><td>0.6</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>282.1</td><td></td><td></td><td>25.9</td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - West Virginia</td><td></td><td>144.2</td><td></td><td></td><td>91.5</td><td></td><td></td><td></td></tr><tr><td>2024-2025 Virginia Under-Earnings</td><td></td><td>78.4</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Pension Settlement</td><td></td><td>17.8</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>11.9</td><td></td><td></td><td>7.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>534.4</td><td></td><td></td><td>124.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>535.5</td><td></td><td></td><td>125.5</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - West Virginia</td><td></td><td>154.1</td><td></td><td></td><td>154.2</td><td></td><td></td><td>10 years</td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>68.0</td><td></td><td></td><td>72.0</td><td></td><td></td><td>19 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Long-term Under-recovered Fuel Costs - Virginia</td><td></td><td>—</td><td></td><td></td><td>107.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.2</td><td></td><td></td><td>7.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>227.3</td><td></td><td></td><td>340.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs</td><td></td><td>307.5</td><td></td><td></td><td>324.7</td><td></td><td></td><td>15 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>107.9</td><td></td><td></td><td>115.8</td><td></td><td></td><td>12 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>67.0</td><td></td><td></td><td>70.7</td><td></td><td></td><td>21 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2020-2022 Virginia Triennial Under-Earnings</td><td></td><td>26.0</td><td></td><td></td><td>37.4</td><td></td><td></td><td>3 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>14.2</td><td></td><td></td><td>15.0</td><td></td><td></td><td>2 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>13.2</td><td></td><td></td><td>14.9</td><td></td><td></td><td>3 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Vegetation Management Program - West Virginia</td><td></td><td>11.9</td><td></td><td></td><td>12.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Virginia Generation Rate Adjustment Clause</td><td></td><td>11.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Virginia Excess SO 2 Allowance Inventory - Virginia</td><td></td><td>10.5</td><td></td><td></td><td>11.8</td><td></td><td></td><td>8 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>3.4</td><td></td><td></td><td>25.5</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>—</td><td></td><td></td><td>21.9</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>30.0</td><td></td><td></td><td>27.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>603.2</td><td></td><td></td><td>689.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>830.5</td><td></td><td></td><td>1,029.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>1,366.0</td><td></td><td></td><td>$</td><td>1,155.1</td><td></td><td></td><td></td></tr></table>
|
table
|
1155.1
|
monetaryItemType
|
table: <entity> 1155.1 </entity> <entity type> monetaryItemType </entity type> <context> Total Noncurrent Regulatory Assets | $ | 1,366.0 | $ | 1,155.1 </context>
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us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Liabilities</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, West Virginia - does not pay a return</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities pending final regulatory determination:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>$</td><td>( 6.3 )</td><td></td><td></td><td>$</td><td>7.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>( 6.3 )</td><td></td><td></td><td>7.9</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>18.6</td><td></td><td></td><td>27.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities approved for payment:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Asset Removal Costs</td><td></td><td>805.6</td><td></td><td></td><td>759.6</td><td></td><td></td><td>(b)</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>219.3</td><td></td><td></td><td>240.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>—</td><td></td><td></td><td>0.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>1,024.9</td><td></td><td></td><td>1,000.0</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2017-2019 Virginia Triennial Revenue Provision</td><td></td><td>35.2</td><td></td><td></td><td>37.1</td><td></td><td></td><td>25 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>10.2</td><td></td><td></td><td>1.5</td><td></td><td></td><td>2 years</td></tr><tr><td>Energy Efficiency Rate Adjustment Clause - Virginia</td><td></td><td>10.0</td><td></td><td></td><td>3.2</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>16.9</td><td></td><td></td><td>12.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>72.3</td><td></td><td></td><td>54.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Approved for Payment</td><td></td><td>1,097.2</td><td></td><td></td><td>1,054.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>1,115.8</td><td></td><td></td><td>$</td><td>1,081.9</td><td></td><td></td><td></td></tr></table>
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table
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21.6
|
monetaryItemType
|
table: <entity> 21.6 </entity> <entity type> monetaryItemType </entity type> <context> Over-recovered Fuel Costs, West Virginia - does not pay a return | $ | 21.6 | $ | — | 1 year </context>
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us-gaap:RegulatoryLiabilityCurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Liabilities</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, West Virginia - does not pay a return</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities pending final regulatory determination:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>$</td><td>( 6.3 )</td><td></td><td></td><td>$</td><td>7.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>( 6.3 )</td><td></td><td></td><td>7.9</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>18.6</td><td></td><td></td><td>27.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities approved for payment:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Asset Removal Costs</td><td></td><td>805.6</td><td></td><td></td><td>759.6</td><td></td><td></td><td>(b)</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>219.3</td><td></td><td></td><td>240.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>—</td><td></td><td></td><td>0.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>1,024.9</td><td></td><td></td><td>1,000.0</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2017-2019 Virginia Triennial Revenue Provision</td><td></td><td>35.2</td><td></td><td></td><td>37.1</td><td></td><td></td><td>25 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>10.2</td><td></td><td></td><td>1.5</td><td></td><td></td><td>2 years</td></tr><tr><td>Energy Efficiency Rate Adjustment Clause - Virginia</td><td></td><td>10.0</td><td></td><td></td><td>3.2</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>16.9</td><td></td><td></td><td>12.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>72.3</td><td></td><td></td><td>54.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Approved for Payment</td><td></td><td>1,097.2</td><td></td><td></td><td>1,054.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>1,115.8</td><td></td><td></td><td>$</td><td>1,081.9</td><td></td><td></td><td></td></tr></table>
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table
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—
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monetaryItemType
|
table: <entity> — </entity> <entity type> monetaryItemType </entity type> <context> Over-recovered Fuel Costs, West Virginia - does not pay a return | $ | 21.6 | $ | — | 1 year </context>
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us-gaap:RegulatoryLiabilityCurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Liabilities</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, West Virginia - does not pay a return</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities pending final regulatory determination:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>$</td><td>( 6.3 )</td><td></td><td></td><td>$</td><td>7.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>( 6.3 )</td><td></td><td></td><td>7.9</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>18.6</td><td></td><td></td><td>27.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities approved for payment:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Asset Removal Costs</td><td></td><td>805.6</td><td></td><td></td><td>759.6</td><td></td><td></td><td>(b)</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>219.3</td><td></td><td></td><td>240.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>—</td><td></td><td></td><td>0.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>1,024.9</td><td></td><td></td><td>1,000.0</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2017-2019 Virginia Triennial Revenue Provision</td><td></td><td>35.2</td><td></td><td></td><td>37.1</td><td></td><td></td><td>25 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>10.2</td><td></td><td></td><td>1.5</td><td></td><td></td><td>2 years</td></tr><tr><td>Energy Efficiency Rate Adjustment Clause - Virginia</td><td></td><td>10.0</td><td></td><td></td><td>3.2</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>16.9</td><td></td><td></td><td>12.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>72.3</td><td></td><td></td><td>54.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Approved for Payment</td><td></td><td>1,097.2</td><td></td><td></td><td>1,054.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>1,115.8</td><td></td><td></td><td>$</td><td>1,081.9</td><td></td><td></td><td></td></tr></table>
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table
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6.3
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monetaryItemType
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table: <entity> 6.3 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
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us-gaap:RegulatoryLiabilityNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Liabilities</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, West Virginia - does not pay a return</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities pending final regulatory determination:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>$</td><td>( 6.3 )</td><td></td><td></td><td>$</td><td>7.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>( 6.3 )</td><td></td><td></td><td>7.9</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>18.6</td><td></td><td></td><td>27.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities approved for payment:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Asset Removal Costs</td><td></td><td>805.6</td><td></td><td></td><td>759.6</td><td></td><td></td><td>(b)</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>219.3</td><td></td><td></td><td>240.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>—</td><td></td><td></td><td>0.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>1,024.9</td><td></td><td></td><td>1,000.0</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2017-2019 Virginia Triennial Revenue Provision</td><td></td><td>35.2</td><td></td><td></td><td>37.1</td><td></td><td></td><td>25 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>10.2</td><td></td><td></td><td>1.5</td><td></td><td></td><td>2 years</td></tr><tr><td>Energy Efficiency Rate Adjustment Clause - Virginia</td><td></td><td>10.0</td><td></td><td></td><td>3.2</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>16.9</td><td></td><td></td><td>12.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>72.3</td><td></td><td></td><td>54.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Approved for Payment</td><td></td><td>1,097.2</td><td></td><td></td><td>1,054.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>1,115.8</td><td></td><td></td><td>$</td><td>1,081.9</td><td></td><td></td><td></td></tr></table>
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table
|
7.9
|
monetaryItemType
|
table: <entity> 7.9 </entity> <entity type> monetaryItemType </entity type> <context> Income Taxes, Net (a) | $ | ( 6.3 ) | $ | 7.9 </context>
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us-gaap:RegulatoryLiabilityNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Liabilities</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, West Virginia - does not pay a return</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities pending final regulatory determination:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>$</td><td>( 6.3 )</td><td></td><td></td><td>$</td><td>7.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>( 6.3 )</td><td></td><td></td><td>7.9</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>18.6</td><td></td><td></td><td>27.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities approved for payment:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Asset Removal Costs</td><td></td><td>805.6</td><td></td><td></td><td>759.6</td><td></td><td></td><td>(b)</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>219.3</td><td></td><td></td><td>240.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>—</td><td></td><td></td><td>0.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>1,024.9</td><td></td><td></td><td>1,000.0</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2017-2019 Virginia Triennial Revenue Provision</td><td></td><td>35.2</td><td></td><td></td><td>37.1</td><td></td><td></td><td>25 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>10.2</td><td></td><td></td><td>1.5</td><td></td><td></td><td>2 years</td></tr><tr><td>Energy Efficiency Rate Adjustment Clause - Virginia</td><td></td><td>10.0</td><td></td><td></td><td>3.2</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>16.9</td><td></td><td></td><td>12.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>72.3</td><td></td><td></td><td>54.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Approved for Payment</td><td></td><td>1,097.2</td><td></td><td></td><td>1,054.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>1,115.8</td><td></td><td></td><td>$</td><td>1,081.9</td><td></td><td></td><td></td></tr></table>
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table
|
24.9
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monetaryItemType
|
table: <entity> 24.9 </entity> <entity type> monetaryItemType </entity type> <context> FERC 2021 Transmission Formula Rate Challenge Refunds | 24.9 | 19.7 </context>
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us-gaap:RegulatoryLiabilityNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Liabilities</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, West Virginia - does not pay a return</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities pending final regulatory determination:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>$</td><td>( 6.3 )</td><td></td><td></td><td>$</td><td>7.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>( 6.3 )</td><td></td><td></td><td>7.9</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>18.6</td><td></td><td></td><td>27.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities approved for payment:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Asset Removal Costs</td><td></td><td>805.6</td><td></td><td></td><td>759.6</td><td></td><td></td><td>(b)</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>219.3</td><td></td><td></td><td>240.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>—</td><td></td><td></td><td>0.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>1,024.9</td><td></td><td></td><td>1,000.0</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2017-2019 Virginia Triennial Revenue Provision</td><td></td><td>35.2</td><td></td><td></td><td>37.1</td><td></td><td></td><td>25 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>10.2</td><td></td><td></td><td>1.5</td><td></td><td></td><td>2 years</td></tr><tr><td>Energy Efficiency Rate Adjustment Clause - Virginia</td><td></td><td>10.0</td><td></td><td></td><td>3.2</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>16.9</td><td></td><td></td><td>12.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>72.3</td><td></td><td></td><td>54.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Approved for Payment</td><td></td><td>1,097.2</td><td></td><td></td><td>1,054.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>1,115.8</td><td></td><td></td><td>$</td><td>1,081.9</td><td></td><td></td><td></td></tr></table>
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table
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19.7
|
monetaryItemType
|
table: <entity> 19.7 </entity> <entity type> monetaryItemType </entity type> <context> FERC 2021 Transmission Formula Rate Challenge Refunds | 24.9 | 19.7 </context>
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us-gaap:RegulatoryLiabilityNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Liabilities</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, West Virginia - does not pay a return</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities pending final regulatory determination:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>$</td><td>( 6.3 )</td><td></td><td></td><td>$</td><td>7.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>( 6.3 )</td><td></td><td></td><td>7.9</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>18.6</td><td></td><td></td><td>27.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities approved for payment:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Asset Removal Costs</td><td></td><td>805.6</td><td></td><td></td><td>759.6</td><td></td><td></td><td>(b)</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>219.3</td><td></td><td></td><td>240.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>—</td><td></td><td></td><td>0.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>1,024.9</td><td></td><td></td><td>1,000.0</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2017-2019 Virginia Triennial Revenue Provision</td><td></td><td>35.2</td><td></td><td></td><td>37.1</td><td></td><td></td><td>25 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>10.2</td><td></td><td></td><td>1.5</td><td></td><td></td><td>2 years</td></tr><tr><td>Energy Efficiency Rate Adjustment Clause - Virginia</td><td></td><td>10.0</td><td></td><td></td><td>3.2</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>16.9</td><td></td><td></td><td>12.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>72.3</td><td></td><td></td><td>54.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Approved for Payment</td><td></td><td>1,097.2</td><td></td><td></td><td>1,054.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>1,115.8</td><td></td><td></td><td>$</td><td>1,081.9</td><td></td><td></td><td></td></tr></table>
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table
|
18.6
|
monetaryItemType
|
table: <entity> 18.6 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Liabilities Pending Final Regulatory Determination | 18.6 | 27.6 </context>
|
us-gaap:RegulatoryLiabilityNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Liabilities</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, West Virginia - does not pay a return</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities pending final regulatory determination:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>$</td><td>( 6.3 )</td><td></td><td></td><td>$</td><td>7.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>( 6.3 )</td><td></td><td></td><td>7.9</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>18.6</td><td></td><td></td><td>27.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities approved for payment:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Asset Removal Costs</td><td></td><td>805.6</td><td></td><td></td><td>759.6</td><td></td><td></td><td>(b)</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>219.3</td><td></td><td></td><td>240.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>—</td><td></td><td></td><td>0.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>1,024.9</td><td></td><td></td><td>1,000.0</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2017-2019 Virginia Triennial Revenue Provision</td><td></td><td>35.2</td><td></td><td></td><td>37.1</td><td></td><td></td><td>25 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>10.2</td><td></td><td></td><td>1.5</td><td></td><td></td><td>2 years</td></tr><tr><td>Energy Efficiency Rate Adjustment Clause - Virginia</td><td></td><td>10.0</td><td></td><td></td><td>3.2</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>16.9</td><td></td><td></td><td>12.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>72.3</td><td></td><td></td><td>54.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Approved for Payment</td><td></td><td>1,097.2</td><td></td><td></td><td>1,054.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>1,115.8</td><td></td><td></td><td>$</td><td>1,081.9</td><td></td><td></td><td></td></tr></table>
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table
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27.6
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monetaryItemType
|
table: <entity> 27.6 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Liabilities Pending Final Regulatory Determination | 18.6 | 27.6 </context>
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us-gaap:RegulatoryLiabilityNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Liabilities</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, West Virginia - does not pay a return</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities pending final regulatory determination:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>$</td><td>( 6.3 )</td><td></td><td></td><td>$</td><td>7.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>( 6.3 )</td><td></td><td></td><td>7.9</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>18.6</td><td></td><td></td><td>27.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities approved for payment:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Asset Removal Costs</td><td></td><td>805.6</td><td></td><td></td><td>759.6</td><td></td><td></td><td>(b)</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>219.3</td><td></td><td></td><td>240.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>—</td><td></td><td></td><td>0.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>1,024.9</td><td></td><td></td><td>1,000.0</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2017-2019 Virginia Triennial Revenue Provision</td><td></td><td>35.2</td><td></td><td></td><td>37.1</td><td></td><td></td><td>25 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>10.2</td><td></td><td></td><td>1.5</td><td></td><td></td><td>2 years</td></tr><tr><td>Energy Efficiency Rate Adjustment Clause - Virginia</td><td></td><td>10.0</td><td></td><td></td><td>3.2</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>16.9</td><td></td><td></td><td>12.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>72.3</td><td></td><td></td><td>54.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Approved for Payment</td><td></td><td>1,097.2</td><td></td><td></td><td>1,054.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>1,115.8</td><td></td><td></td><td>$</td><td>1,081.9</td><td></td><td></td><td></td></tr></table>
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table
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805.6
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monetaryItemType
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table: <entity> 805.6 </entity> <entity type> monetaryItemType </entity type> <context> Asset Removal Costs | 805.6 | 759.6 | (b) </context>
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us-gaap:RegulatoryLiabilityNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Liabilities</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, West Virginia - does not pay a return</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities pending final regulatory determination:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>$</td><td>( 6.3 )</td><td></td><td></td><td>$</td><td>7.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>( 6.3 )</td><td></td><td></td><td>7.9</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>18.6</td><td></td><td></td><td>27.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities approved for payment:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Asset Removal Costs</td><td></td><td>805.6</td><td></td><td></td><td>759.6</td><td></td><td></td><td>(b)</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>219.3</td><td></td><td></td><td>240.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>—</td><td></td><td></td><td>0.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>1,024.9</td><td></td><td></td><td>1,000.0</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2017-2019 Virginia Triennial Revenue Provision</td><td></td><td>35.2</td><td></td><td></td><td>37.1</td><td></td><td></td><td>25 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>10.2</td><td></td><td></td><td>1.5</td><td></td><td></td><td>2 years</td></tr><tr><td>Energy Efficiency Rate Adjustment Clause - Virginia</td><td></td><td>10.0</td><td></td><td></td><td>3.2</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>16.9</td><td></td><td></td><td>12.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>72.3</td><td></td><td></td><td>54.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Approved for Payment</td><td></td><td>1,097.2</td><td></td><td></td><td>1,054.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>1,115.8</td><td></td><td></td><td>$</td><td>1,081.9</td><td></td><td></td><td></td></tr></table>
|
table
|
759.6
|
monetaryItemType
|
table: <entity> 759.6 </entity> <entity type> monetaryItemType </entity type> <context> Asset Removal Costs | 805.6 | 759.6 | (b) </context>
|
us-gaap:RegulatoryLiabilityNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Liabilities</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, West Virginia - does not pay a return</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities pending final regulatory determination:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>$</td><td>( 6.3 )</td><td></td><td></td><td>$</td><td>7.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>( 6.3 )</td><td></td><td></td><td>7.9</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>18.6</td><td></td><td></td><td>27.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities approved for payment:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Asset Removal Costs</td><td></td><td>805.6</td><td></td><td></td><td>759.6</td><td></td><td></td><td>(b)</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>219.3</td><td></td><td></td><td>240.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>—</td><td></td><td></td><td>0.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>1,024.9</td><td></td><td></td><td>1,000.0</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2017-2019 Virginia Triennial Revenue Provision</td><td></td><td>35.2</td><td></td><td></td><td>37.1</td><td></td><td></td><td>25 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>10.2</td><td></td><td></td><td>1.5</td><td></td><td></td><td>2 years</td></tr><tr><td>Energy Efficiency Rate Adjustment Clause - Virginia</td><td></td><td>10.0</td><td></td><td></td><td>3.2</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>16.9</td><td></td><td></td><td>12.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>72.3</td><td></td><td></td><td>54.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Approved for Payment</td><td></td><td>1,097.2</td><td></td><td></td><td>1,054.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>1,115.8</td><td></td><td></td><td>$</td><td>1,081.9</td><td></td><td></td><td></td></tr></table>
|
table
|
219.3
|
monetaryItemType
|
table: <entity> 219.3 </entity> <entity type> monetaryItemType </entity type> <context> Income Taxes, Net (a) | 219.3 | 240.1 | (c) </context>
|
us-gaap:RegulatoryLiabilityNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Liabilities</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, West Virginia - does not pay a return</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities pending final regulatory determination:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>$</td><td>( 6.3 )</td><td></td><td></td><td>$</td><td>7.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>( 6.3 )</td><td></td><td></td><td>7.9</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>18.6</td><td></td><td></td><td>27.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities approved for payment:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Asset Removal Costs</td><td></td><td>805.6</td><td></td><td></td><td>759.6</td><td></td><td></td><td>(b)</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>219.3</td><td></td><td></td><td>240.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>—</td><td></td><td></td><td>0.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>1,024.9</td><td></td><td></td><td>1,000.0</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2017-2019 Virginia Triennial Revenue Provision</td><td></td><td>35.2</td><td></td><td></td><td>37.1</td><td></td><td></td><td>25 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>10.2</td><td></td><td></td><td>1.5</td><td></td><td></td><td>2 years</td></tr><tr><td>Energy Efficiency Rate Adjustment Clause - Virginia</td><td></td><td>10.0</td><td></td><td></td><td>3.2</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>16.9</td><td></td><td></td><td>12.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>72.3</td><td></td><td></td><td>54.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Approved for Payment</td><td></td><td>1,097.2</td><td></td><td></td><td>1,054.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>1,115.8</td><td></td><td></td><td>$</td><td>1,081.9</td><td></td><td></td><td></td></tr></table>
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table
|
240.1
|
monetaryItemType
|
table: <entity> 240.1 </entity> <entity type> monetaryItemType </entity type> <context> Income Taxes, Net (a) | 219.3 | 240.1 | (c) </context>
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us-gaap:RegulatoryLiabilityNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Liabilities</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, West Virginia - does not pay a return</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities pending final regulatory determination:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>$</td><td>( 6.3 )</td><td></td><td></td><td>$</td><td>7.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>( 6.3 )</td><td></td><td></td><td>7.9</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>18.6</td><td></td><td></td><td>27.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities approved for payment:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Asset Removal Costs</td><td></td><td>805.6</td><td></td><td></td><td>759.6</td><td></td><td></td><td>(b)</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>219.3</td><td></td><td></td><td>240.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>—</td><td></td><td></td><td>0.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>1,024.9</td><td></td><td></td><td>1,000.0</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2017-2019 Virginia Triennial Revenue Provision</td><td></td><td>35.2</td><td></td><td></td><td>37.1</td><td></td><td></td><td>25 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>10.2</td><td></td><td></td><td>1.5</td><td></td><td></td><td>2 years</td></tr><tr><td>Energy Efficiency Rate Adjustment Clause - Virginia</td><td></td><td>10.0</td><td></td><td></td><td>3.2</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>16.9</td><td></td><td></td><td>12.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>72.3</td><td></td><td></td><td>54.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Approved for Payment</td><td></td><td>1,097.2</td><td></td><td></td><td>1,054.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>1,115.8</td><td></td><td></td><td>$</td><td>1,081.9</td><td></td><td></td><td></td></tr></table>
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table
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—
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monetaryItemType
|
table: <entity> — </entity> <entity type> monetaryItemType </entity type> <context> Over-recovered Fuel Costs, West Virginia - does not pay a return | $ | 21.6 | $ | — | 1 year </context>
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us-gaap:RegulatoryLiabilityNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Liabilities</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, West Virginia - does not pay a return</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities pending final regulatory determination:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>$</td><td>( 6.3 )</td><td></td><td></td><td>$</td><td>7.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>( 6.3 )</td><td></td><td></td><td>7.9</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>18.6</td><td></td><td></td><td>27.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities approved for payment:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Asset Removal Costs</td><td></td><td>805.6</td><td></td><td></td><td>759.6</td><td></td><td></td><td>(b)</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>219.3</td><td></td><td></td><td>240.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>—</td><td></td><td></td><td>0.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>1,024.9</td><td></td><td></td><td>1,000.0</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2017-2019 Virginia Triennial Revenue Provision</td><td></td><td>35.2</td><td></td><td></td><td>37.1</td><td></td><td></td><td>25 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>10.2</td><td></td><td></td><td>1.5</td><td></td><td></td><td>2 years</td></tr><tr><td>Energy Efficiency Rate Adjustment Clause - Virginia</td><td></td><td>10.0</td><td></td><td></td><td>3.2</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>16.9</td><td></td><td></td><td>12.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>72.3</td><td></td><td></td><td>54.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Approved for Payment</td><td></td><td>1,097.2</td><td></td><td></td><td>1,054.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>1,115.8</td><td></td><td></td><td>$</td><td>1,081.9</td><td></td><td></td><td></td></tr></table>
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table
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0.3
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monetaryItemType
|
table: <entity> 0.3 </entity> <entity type> monetaryItemType </entity type> <context> Deferred Investment Tax Credits | — | 0.3 </context>
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us-gaap:RegulatoryLiabilityNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Liabilities</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, West Virginia - does not pay a return</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities pending final regulatory determination:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>$</td><td>( 6.3 )</td><td></td><td></td><td>$</td><td>7.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>( 6.3 )</td><td></td><td></td><td>7.9</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>18.6</td><td></td><td></td><td>27.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities approved for payment:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Asset Removal Costs</td><td></td><td>805.6</td><td></td><td></td><td>759.6</td><td></td><td></td><td>(b)</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>219.3</td><td></td><td></td><td>240.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>—</td><td></td><td></td><td>0.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>1,024.9</td><td></td><td></td><td>1,000.0</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2017-2019 Virginia Triennial Revenue Provision</td><td></td><td>35.2</td><td></td><td></td><td>37.1</td><td></td><td></td><td>25 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>10.2</td><td></td><td></td><td>1.5</td><td></td><td></td><td>2 years</td></tr><tr><td>Energy Efficiency Rate Adjustment Clause - Virginia</td><td></td><td>10.0</td><td></td><td></td><td>3.2</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>16.9</td><td></td><td></td><td>12.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>72.3</td><td></td><td></td><td>54.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Approved for Payment</td><td></td><td>1,097.2</td><td></td><td></td><td>1,054.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>1,115.8</td><td></td><td></td><td>$</td><td>1,081.9</td><td></td><td></td><td></td></tr></table>
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table
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1024.9
|
monetaryItemType
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table: <entity> 1024.9 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Liabilities Currently Paying a Return | 1,024.9 | 1,000.0 </context>
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us-gaap:RegulatoryLiabilityNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Liabilities</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, West Virginia - does not pay a return</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities pending final regulatory determination:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>$</td><td>( 6.3 )</td><td></td><td></td><td>$</td><td>7.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>( 6.3 )</td><td></td><td></td><td>7.9</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>18.6</td><td></td><td></td><td>27.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities approved for payment:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Asset Removal Costs</td><td></td><td>805.6</td><td></td><td></td><td>759.6</td><td></td><td></td><td>(b)</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>219.3</td><td></td><td></td><td>240.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>—</td><td></td><td></td><td>0.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>1,024.9</td><td></td><td></td><td>1,000.0</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2017-2019 Virginia Triennial Revenue Provision</td><td></td><td>35.2</td><td></td><td></td><td>37.1</td><td></td><td></td><td>25 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>10.2</td><td></td><td></td><td>1.5</td><td></td><td></td><td>2 years</td></tr><tr><td>Energy Efficiency Rate Adjustment Clause - Virginia</td><td></td><td>10.0</td><td></td><td></td><td>3.2</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>16.9</td><td></td><td></td><td>12.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>72.3</td><td></td><td></td><td>54.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Approved for Payment</td><td></td><td>1,097.2</td><td></td><td></td><td>1,054.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>1,115.8</td><td></td><td></td><td>$</td><td>1,081.9</td><td></td><td></td><td></td></tr></table>
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table
|
1000.0
|
monetaryItemType
|
table: <entity> 1000.0 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Liabilities Currently Paying a Return | 1,024.9 | 1,000.0 </context>
|
us-gaap:RegulatoryLiabilityNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Liabilities</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, West Virginia - does not pay a return</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities pending final regulatory determination:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>$</td><td>( 6.3 )</td><td></td><td></td><td>$</td><td>7.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>( 6.3 )</td><td></td><td></td><td>7.9</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>18.6</td><td></td><td></td><td>27.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities approved for payment:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Asset Removal Costs</td><td></td><td>805.6</td><td></td><td></td><td>759.6</td><td></td><td></td><td>(b)</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>219.3</td><td></td><td></td><td>240.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>—</td><td></td><td></td><td>0.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>1,024.9</td><td></td><td></td><td>1,000.0</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2017-2019 Virginia Triennial Revenue Provision</td><td></td><td>35.2</td><td></td><td></td><td>37.1</td><td></td><td></td><td>25 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>10.2</td><td></td><td></td><td>1.5</td><td></td><td></td><td>2 years</td></tr><tr><td>Energy Efficiency Rate Adjustment Clause - Virginia</td><td></td><td>10.0</td><td></td><td></td><td>3.2</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>16.9</td><td></td><td></td><td>12.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>72.3</td><td></td><td></td><td>54.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Approved for Payment</td><td></td><td>1,097.2</td><td></td><td></td><td>1,054.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>1,115.8</td><td></td><td></td><td>$</td><td>1,081.9</td><td></td><td></td><td></td></tr></table>
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table
|
35.2
|
monetaryItemType
|
table: <entity> 35.2 </entity> <entity type> monetaryItemType </entity type> <context> 2017-2019 Virginia Triennial Revenue Provision | 35.2 | 37.1 | 25 years </context>
|
us-gaap:RegulatoryLiabilityNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Liabilities</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, West Virginia - does not pay a return</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities pending final regulatory determination:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>$</td><td>( 6.3 )</td><td></td><td></td><td>$</td><td>7.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>( 6.3 )</td><td></td><td></td><td>7.9</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>18.6</td><td></td><td></td><td>27.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities approved for payment:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Asset Removal Costs</td><td></td><td>805.6</td><td></td><td></td><td>759.6</td><td></td><td></td><td>(b)</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>219.3</td><td></td><td></td><td>240.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>—</td><td></td><td></td><td>0.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>1,024.9</td><td></td><td></td><td>1,000.0</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2017-2019 Virginia Triennial Revenue Provision</td><td></td><td>35.2</td><td></td><td></td><td>37.1</td><td></td><td></td><td>25 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>10.2</td><td></td><td></td><td>1.5</td><td></td><td></td><td>2 years</td></tr><tr><td>Energy Efficiency Rate Adjustment Clause - Virginia</td><td></td><td>10.0</td><td></td><td></td><td>3.2</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>16.9</td><td></td><td></td><td>12.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>72.3</td><td></td><td></td><td>54.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Approved for Payment</td><td></td><td>1,097.2</td><td></td><td></td><td>1,054.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>1,115.8</td><td></td><td></td><td>$</td><td>1,081.9</td><td></td><td></td><td></td></tr></table>
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table
|
37.1
|
monetaryItemType
|
table: <entity> 37.1 </entity> <entity type> monetaryItemType </entity type> <context> 2017-2019 Virginia Triennial Revenue Provision | 35.2 | 37.1 | 25 years </context>
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us-gaap:RegulatoryLiabilityNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Liabilities</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, West Virginia - does not pay a return</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities pending final regulatory determination:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>$</td><td>( 6.3 )</td><td></td><td></td><td>$</td><td>7.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>( 6.3 )</td><td></td><td></td><td>7.9</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>18.6</td><td></td><td></td><td>27.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities approved for payment:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Asset Removal Costs</td><td></td><td>805.6</td><td></td><td></td><td>759.6</td><td></td><td></td><td>(b)</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>219.3</td><td></td><td></td><td>240.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>—</td><td></td><td></td><td>0.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>1,024.9</td><td></td><td></td><td>1,000.0</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2017-2019 Virginia Triennial Revenue Provision</td><td></td><td>35.2</td><td></td><td></td><td>37.1</td><td></td><td></td><td>25 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>10.2</td><td></td><td></td><td>1.5</td><td></td><td></td><td>2 years</td></tr><tr><td>Energy Efficiency Rate Adjustment Clause - Virginia</td><td></td><td>10.0</td><td></td><td></td><td>3.2</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>16.9</td><td></td><td></td><td>12.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>72.3</td><td></td><td></td><td>54.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Approved for Payment</td><td></td><td>1,097.2</td><td></td><td></td><td>1,054.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>1,115.8</td><td></td><td></td><td>$</td><td>1,081.9</td><td></td><td></td><td></td></tr></table>
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table
|
10.2
|
monetaryItemType
|
table: <entity> 10.2 </entity> <entity type> monetaryItemType </entity type> <context> Virginia Transmission Rate Adjustment Clause | 10.2 | 1.5 | 2 years </context>
|
us-gaap:RegulatoryLiabilityNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Liabilities</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, West Virginia - does not pay a return</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities pending final regulatory determination:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>$</td><td>( 6.3 )</td><td></td><td></td><td>$</td><td>7.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>( 6.3 )</td><td></td><td></td><td>7.9</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>18.6</td><td></td><td></td><td>27.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities approved for payment:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Asset Removal Costs</td><td></td><td>805.6</td><td></td><td></td><td>759.6</td><td></td><td></td><td>(b)</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>219.3</td><td></td><td></td><td>240.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>—</td><td></td><td></td><td>0.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>1,024.9</td><td></td><td></td><td>1,000.0</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2017-2019 Virginia Triennial Revenue Provision</td><td></td><td>35.2</td><td></td><td></td><td>37.1</td><td></td><td></td><td>25 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>10.2</td><td></td><td></td><td>1.5</td><td></td><td></td><td>2 years</td></tr><tr><td>Energy Efficiency Rate Adjustment Clause - Virginia</td><td></td><td>10.0</td><td></td><td></td><td>3.2</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>16.9</td><td></td><td></td><td>12.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>72.3</td><td></td><td></td><td>54.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Approved for Payment</td><td></td><td>1,097.2</td><td></td><td></td><td>1,054.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>1,115.8</td><td></td><td></td><td>$</td><td>1,081.9</td><td></td><td></td><td></td></tr></table>
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table
|
1.5
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monetaryItemType
|
table: <entity> 1.5 </entity> <entity type> monetaryItemType </entity type> <context> Virginia Transmission Rate Adjustment Clause | 10.2 | 1.5 | 2 years </context>
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us-gaap:RegulatoryLiabilityNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Liabilities</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, West Virginia - does not pay a return</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities pending final regulatory determination:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>$</td><td>( 6.3 )</td><td></td><td></td><td>$</td><td>7.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>( 6.3 )</td><td></td><td></td><td>7.9</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>18.6</td><td></td><td></td><td>27.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities approved for payment:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Asset Removal Costs</td><td></td><td>805.6</td><td></td><td></td><td>759.6</td><td></td><td></td><td>(b)</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>219.3</td><td></td><td></td><td>240.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>—</td><td></td><td></td><td>0.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>1,024.9</td><td></td><td></td><td>1,000.0</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2017-2019 Virginia Triennial Revenue Provision</td><td></td><td>35.2</td><td></td><td></td><td>37.1</td><td></td><td></td><td>25 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>10.2</td><td></td><td></td><td>1.5</td><td></td><td></td><td>2 years</td></tr><tr><td>Energy Efficiency Rate Adjustment Clause - Virginia</td><td></td><td>10.0</td><td></td><td></td><td>3.2</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>16.9</td><td></td><td></td><td>12.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>72.3</td><td></td><td></td><td>54.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Approved for Payment</td><td></td><td>1,097.2</td><td></td><td></td><td>1,054.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>1,115.8</td><td></td><td></td><td>$</td><td>1,081.9</td><td></td><td></td><td></td></tr></table>
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table
|
10.0
|
monetaryItemType
|
table: <entity> 10.0 </entity> <entity type> monetaryItemType </entity type> <context> Energy Efficiency Rate Adjustment Clause - Virginia | 10.0 | 3.2 | 2 years </context>
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us-gaap:RegulatoryLiabilityNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Liabilities</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, West Virginia - does not pay a return</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities pending final regulatory determination:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>$</td><td>( 6.3 )</td><td></td><td></td><td>$</td><td>7.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>( 6.3 )</td><td></td><td></td><td>7.9</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>18.6</td><td></td><td></td><td>27.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities approved for payment:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Asset Removal Costs</td><td></td><td>805.6</td><td></td><td></td><td>759.6</td><td></td><td></td><td>(b)</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>219.3</td><td></td><td></td><td>240.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>—</td><td></td><td></td><td>0.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>1,024.9</td><td></td><td></td><td>1,000.0</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2017-2019 Virginia Triennial Revenue Provision</td><td></td><td>35.2</td><td></td><td></td><td>37.1</td><td></td><td></td><td>25 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>10.2</td><td></td><td></td><td>1.5</td><td></td><td></td><td>2 years</td></tr><tr><td>Energy Efficiency Rate Adjustment Clause - Virginia</td><td></td><td>10.0</td><td></td><td></td><td>3.2</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>16.9</td><td></td><td></td><td>12.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>72.3</td><td></td><td></td><td>54.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Approved for Payment</td><td></td><td>1,097.2</td><td></td><td></td><td>1,054.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>1,115.8</td><td></td><td></td><td>$</td><td>1,081.9</td><td></td><td></td><td></td></tr></table>
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table
|
3.2
|
monetaryItemType
|
table: <entity> 3.2 </entity> <entity type> monetaryItemType </entity type> <context> Energy Efficiency Rate Adjustment Clause - Virginia | 10.0 | 3.2 | 2 years </context>
|
us-gaap:RegulatoryLiabilityNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Liabilities</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, West Virginia - does not pay a return</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities pending final regulatory determination:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>$</td><td>( 6.3 )</td><td></td><td></td><td>$</td><td>7.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>( 6.3 )</td><td></td><td></td><td>7.9</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>18.6</td><td></td><td></td><td>27.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities approved for payment:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Asset Removal Costs</td><td></td><td>805.6</td><td></td><td></td><td>759.6</td><td></td><td></td><td>(b)</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>219.3</td><td></td><td></td><td>240.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>—</td><td></td><td></td><td>0.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>1,024.9</td><td></td><td></td><td>1,000.0</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2017-2019 Virginia Triennial Revenue Provision</td><td></td><td>35.2</td><td></td><td></td><td>37.1</td><td></td><td></td><td>25 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>10.2</td><td></td><td></td><td>1.5</td><td></td><td></td><td>2 years</td></tr><tr><td>Energy Efficiency Rate Adjustment Clause - Virginia</td><td></td><td>10.0</td><td></td><td></td><td>3.2</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>16.9</td><td></td><td></td><td>12.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>72.3</td><td></td><td></td><td>54.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Approved for Payment</td><td></td><td>1,097.2</td><td></td><td></td><td>1,054.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>1,115.8</td><td></td><td></td><td>$</td><td>1,081.9</td><td></td><td></td><td></td></tr></table>
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table
|
16.9
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monetaryItemType
|
table: <entity> 16.9 </entity> <entity type> monetaryItemType </entity type> <context> Other Regulatory Liabilities Approved for Payment | 16.9 | 12.5 | various </context>
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us-gaap:RegulatoryLiabilityNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Liabilities</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, West Virginia - does not pay a return</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities pending final regulatory determination:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>$</td><td>( 6.3 )</td><td></td><td></td><td>$</td><td>7.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>( 6.3 )</td><td></td><td></td><td>7.9</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>18.6</td><td></td><td></td><td>27.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities approved for payment:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Asset Removal Costs</td><td></td><td>805.6</td><td></td><td></td><td>759.6</td><td></td><td></td><td>(b)</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>219.3</td><td></td><td></td><td>240.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>—</td><td></td><td></td><td>0.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>1,024.9</td><td></td><td></td><td>1,000.0</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2017-2019 Virginia Triennial Revenue Provision</td><td></td><td>35.2</td><td></td><td></td><td>37.1</td><td></td><td></td><td>25 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>10.2</td><td></td><td></td><td>1.5</td><td></td><td></td><td>2 years</td></tr><tr><td>Energy Efficiency Rate Adjustment Clause - Virginia</td><td></td><td>10.0</td><td></td><td></td><td>3.2</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>16.9</td><td></td><td></td><td>12.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>72.3</td><td></td><td></td><td>54.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Approved for Payment</td><td></td><td>1,097.2</td><td></td><td></td><td>1,054.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>1,115.8</td><td></td><td></td><td>$</td><td>1,081.9</td><td></td><td></td><td></td></tr></table>
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table
|
12.5
|
monetaryItemType
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table: <entity> 12.5 </entity> <entity type> monetaryItemType </entity type> <context> Other Regulatory Liabilities Approved for Payment | 16.9 | 12.5 | various </context>
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us-gaap:RegulatoryLiabilityNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Liabilities</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, West Virginia - does not pay a return</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities pending final regulatory determination:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>$</td><td>( 6.3 )</td><td></td><td></td><td>$</td><td>7.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>( 6.3 )</td><td></td><td></td><td>7.9</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>18.6</td><td></td><td></td><td>27.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities approved for payment:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Asset Removal Costs</td><td></td><td>805.6</td><td></td><td></td><td>759.6</td><td></td><td></td><td>(b)</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>219.3</td><td></td><td></td><td>240.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>—</td><td></td><td></td><td>0.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>1,024.9</td><td></td><td></td><td>1,000.0</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2017-2019 Virginia Triennial Revenue Provision</td><td></td><td>35.2</td><td></td><td></td><td>37.1</td><td></td><td></td><td>25 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>10.2</td><td></td><td></td><td>1.5</td><td></td><td></td><td>2 years</td></tr><tr><td>Energy Efficiency Rate Adjustment Clause - Virginia</td><td></td><td>10.0</td><td></td><td></td><td>3.2</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>16.9</td><td></td><td></td><td>12.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>72.3</td><td></td><td></td><td>54.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Approved for Payment</td><td></td><td>1,097.2</td><td></td><td></td><td>1,054.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>1,115.8</td><td></td><td></td><td>$</td><td>1,081.9</td><td></td><td></td><td></td></tr></table>
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table
|
72.3
|
monetaryItemType
|
table: <entity> 72.3 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Liabilities Currently Not Paying a Return | 72.3 | 54.3 </context>
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us-gaap:RegulatoryLiabilityNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Liabilities</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, West Virginia - does not pay a return</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities pending final regulatory determination:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>$</td><td>( 6.3 )</td><td></td><td></td><td>$</td><td>7.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>( 6.3 )</td><td></td><td></td><td>7.9</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>18.6</td><td></td><td></td><td>27.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities approved for payment:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Asset Removal Costs</td><td></td><td>805.6</td><td></td><td></td><td>759.6</td><td></td><td></td><td>(b)</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>219.3</td><td></td><td></td><td>240.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>—</td><td></td><td></td><td>0.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>1,024.9</td><td></td><td></td><td>1,000.0</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2017-2019 Virginia Triennial Revenue Provision</td><td></td><td>35.2</td><td></td><td></td><td>37.1</td><td></td><td></td><td>25 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>10.2</td><td></td><td></td><td>1.5</td><td></td><td></td><td>2 years</td></tr><tr><td>Energy Efficiency Rate Adjustment Clause - Virginia</td><td></td><td>10.0</td><td></td><td></td><td>3.2</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>16.9</td><td></td><td></td><td>12.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>72.3</td><td></td><td></td><td>54.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Approved for Payment</td><td></td><td>1,097.2</td><td></td><td></td><td>1,054.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>1,115.8</td><td></td><td></td><td>$</td><td>1,081.9</td><td></td><td></td><td></td></tr></table>
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table
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54.3
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monetaryItemType
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table: <entity> 54.3 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Liabilities Currently Not Paying a Return | 72.3 | 54.3 </context>
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us-gaap:RegulatoryLiabilityNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Liabilities</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, West Virginia - does not pay a return</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities pending final regulatory determination:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>$</td><td>( 6.3 )</td><td></td><td></td><td>$</td><td>7.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>( 6.3 )</td><td></td><td></td><td>7.9</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>18.6</td><td></td><td></td><td>27.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities approved for payment:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Asset Removal Costs</td><td></td><td>805.6</td><td></td><td></td><td>759.6</td><td></td><td></td><td>(b)</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>219.3</td><td></td><td></td><td>240.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>—</td><td></td><td></td><td>0.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>1,024.9</td><td></td><td></td><td>1,000.0</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2017-2019 Virginia Triennial Revenue Provision</td><td></td><td>35.2</td><td></td><td></td><td>37.1</td><td></td><td></td><td>25 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>10.2</td><td></td><td></td><td>1.5</td><td></td><td></td><td>2 years</td></tr><tr><td>Energy Efficiency Rate Adjustment Clause - Virginia</td><td></td><td>10.0</td><td></td><td></td><td>3.2</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>16.9</td><td></td><td></td><td>12.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>72.3</td><td></td><td></td><td>54.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Approved for Payment</td><td></td><td>1,097.2</td><td></td><td></td><td>1,054.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>1,115.8</td><td></td><td></td><td>$</td><td>1,081.9</td><td></td><td></td><td></td></tr></table>
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table
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1097.2
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monetaryItemType
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table: <entity> 1097.2 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Liabilities Approved for Payment | 1,097.2 | 1,054.3 </context>
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us-gaap:RegulatoryLiabilityNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Liabilities</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, West Virginia - does not pay a return</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities pending final regulatory determination:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>$</td><td>( 6.3 )</td><td></td><td></td><td>$</td><td>7.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>( 6.3 )</td><td></td><td></td><td>7.9</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>18.6</td><td></td><td></td><td>27.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities approved for payment:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Asset Removal Costs</td><td></td><td>805.6</td><td></td><td></td><td>759.6</td><td></td><td></td><td>(b)</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>219.3</td><td></td><td></td><td>240.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>—</td><td></td><td></td><td>0.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>1,024.9</td><td></td><td></td><td>1,000.0</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2017-2019 Virginia Triennial Revenue Provision</td><td></td><td>35.2</td><td></td><td></td><td>37.1</td><td></td><td></td><td>25 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>10.2</td><td></td><td></td><td>1.5</td><td></td><td></td><td>2 years</td></tr><tr><td>Energy Efficiency Rate Adjustment Clause - Virginia</td><td></td><td>10.0</td><td></td><td></td><td>3.2</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>16.9</td><td></td><td></td><td>12.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>72.3</td><td></td><td></td><td>54.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Approved for Payment</td><td></td><td>1,097.2</td><td></td><td></td><td>1,054.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>1,115.8</td><td></td><td></td><td>$</td><td>1,081.9</td><td></td><td></td><td></td></tr></table>
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table
|
1054.3
|
monetaryItemType
|
table: <entity> 1054.3 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Liabilities Approved for Payment | 1,097.2 | 1,054.3 </context>
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us-gaap:RegulatoryLiabilityNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Liabilities</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, West Virginia - does not pay a return</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities pending final regulatory determination:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>$</td><td>( 6.3 )</td><td></td><td></td><td>$</td><td>7.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>( 6.3 )</td><td></td><td></td><td>7.9</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>18.6</td><td></td><td></td><td>27.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities approved for payment:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Asset Removal Costs</td><td></td><td>805.6</td><td></td><td></td><td>759.6</td><td></td><td></td><td>(b)</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>219.3</td><td></td><td></td><td>240.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>—</td><td></td><td></td><td>0.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>1,024.9</td><td></td><td></td><td>1,000.0</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2017-2019 Virginia Triennial Revenue Provision</td><td></td><td>35.2</td><td></td><td></td><td>37.1</td><td></td><td></td><td>25 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>10.2</td><td></td><td></td><td>1.5</td><td></td><td></td><td>2 years</td></tr><tr><td>Energy Efficiency Rate Adjustment Clause - Virginia</td><td></td><td>10.0</td><td></td><td></td><td>3.2</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>16.9</td><td></td><td></td><td>12.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>72.3</td><td></td><td></td><td>54.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Approved for Payment</td><td></td><td>1,097.2</td><td></td><td></td><td>1,054.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>1,115.8</td><td></td><td></td><td>$</td><td>1,081.9</td><td></td><td></td><td></td></tr></table>
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table
|
1115.8
|
monetaryItemType
|
table: <entity> 1115.8 </entity> <entity type> monetaryItemType </entity type> <context> Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits | $ | 1,115.8 | $ | 1,081.9 </context>
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us-gaap:RegulatoryLiabilityNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>APCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Liabilities</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, West Virginia - does not pay a return</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>21.6</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities pending final regulatory determination:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>$</td><td>( 6.3 )</td><td></td><td></td><td>$</td><td>7.9</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>( 6.3 )</td><td></td><td></td><td>7.9</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>24.9</td><td></td><td></td><td>19.7</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>18.6</td><td></td><td></td><td>27.6</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory liabilities approved for payment:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Asset Removal Costs</td><td></td><td>805.6</td><td></td><td></td><td>759.6</td><td></td><td></td><td>(b)</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>219.3</td><td></td><td></td><td>240.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>—</td><td></td><td></td><td>0.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>1,024.9</td><td></td><td></td><td>1,000.0</td><td></td><td></td><td></td></tr><tr><td>Regulatory Liabilities Currently Not Paying a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2017-2019 Virginia Triennial Revenue Provision</td><td></td><td>35.2</td><td></td><td></td><td>37.1</td><td></td><td></td><td>25 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Virginia Transmission Rate Adjustment Clause</td><td></td><td>10.2</td><td></td><td></td><td>1.5</td><td></td><td></td><td>2 years</td></tr><tr><td>Energy Efficiency Rate Adjustment Clause - Virginia</td><td></td><td>10.0</td><td></td><td></td><td>3.2</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>16.9</td><td></td><td></td><td>12.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>72.3</td><td></td><td></td><td>54.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Approved for Payment</td><td></td><td>1,097.2</td><td></td><td></td><td>1,054.3</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>1,115.8</td><td></td><td></td><td>$</td><td>1,081.9</td><td></td><td></td><td></td></tr></table>
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table
|
1081.9
|
monetaryItemType
|
table: <entity> 1081.9 </entity> <entity type> monetaryItemType </entity type> <context> Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits | $ | 1,115.8 | $ | 1,081.9 </context>
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us-gaap:RegulatoryLiabilityNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>I&M</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Michigan - earns a return</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td>1 year</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>6.4</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>6.4</td><td></td><td></td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>74.0</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>NOLC Costs - Indiana (b)</td><td></td><td>26.7</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>6.3</td><td></td><td></td><td>29.7</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>1.6</td><td></td><td></td><td>3.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>108.6</td><td></td><td></td><td>33.0</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>115.0</td><td></td><td></td><td>33.2</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>98.0</td><td></td><td></td><td>122.5</td><td></td><td></td><td>4 years</td></tr><tr><td>Rockport Plant Dry Sorbent Injection System and Selective Catalytic Reduction</td><td></td><td>37.3</td><td></td><td></td><td>46.9</td><td></td><td></td><td>4 years</td></tr><tr><td>Cook Plant Uprate Project</td><td></td><td>20.5</td><td></td><td></td><td>22.9</td><td></td><td></td><td>9 years</td></tr><tr><td>Deferred Cook Plant Life Cycle Management Project Costs - Michigan, FERC</td><td></td><td>10.1</td><td></td><td></td><td>11.1</td><td></td><td></td><td>10 years</td></tr><tr><td>Cook Plant Turbine - Indiana</td><td></td><td>7.8</td><td></td><td></td><td>8.4</td><td></td><td></td><td>14 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>21.1</td><td></td><td></td><td>17.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>194.8</td><td></td><td></td><td>229.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net</td><td></td><td>108.8</td><td></td><td></td><td>—</td><td></td><td></td><td>(c)</td></tr><tr><td>Cook Plant Nuclear Refueling Outage Levelization</td><td></td><td>43.0</td><td></td><td></td><td>55.7</td><td></td><td></td><td>3 years</td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>20.2</td><td></td><td></td><td>3.4</td><td></td><td></td><td>4 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>14.6</td><td></td><td></td><td>25.4</td><td></td><td></td><td>12 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Indiana Excess SO 2 Allowance Inventory - Indiana</td><td></td><td>11.9</td><td></td><td></td><td>14.8</td><td></td><td></td><td>4 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>10.9</td><td></td><td></td><td>11.8</td><td></td><td></td><td>24 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>7.3</td><td></td><td></td><td>7.0</td><td></td><td></td><td>3 years</td></tr><tr><td>Environmental Cost Rider - Indiana</td><td></td><td>1.4</td><td></td><td></td><td>8.1</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>20.2</td><td></td><td></td><td>17.6</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>238.3</td><td></td><td></td><td>143.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>433.1</td><td></td><td></td><td>373.1</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>548.1</td><td></td><td></td><td>$</td><td>406.3</td><td></td><td></td><td></td></tr></table>
|
table
|
10.6
|
monetaryItemType
|
table: <entity> 10.6 </entity> <entity type> monetaryItemType </entity type> <context> Under-recovered Fuel Costs, Michigan - earns a return | $ | 10.6 | $ | 14.8 | 1 year </context>
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us-gaap:RegulatoryAssetsCurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>I&M</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Michigan - earns a return</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td>1 year</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>6.4</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>6.4</td><td></td><td></td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>74.0</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>NOLC Costs - Indiana (b)</td><td></td><td>26.7</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>6.3</td><td></td><td></td><td>29.7</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>1.6</td><td></td><td></td><td>3.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>108.6</td><td></td><td></td><td>33.0</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>115.0</td><td></td><td></td><td>33.2</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>98.0</td><td></td><td></td><td>122.5</td><td></td><td></td><td>4 years</td></tr><tr><td>Rockport Plant Dry Sorbent Injection System and Selective Catalytic Reduction</td><td></td><td>37.3</td><td></td><td></td><td>46.9</td><td></td><td></td><td>4 years</td></tr><tr><td>Cook Plant Uprate Project</td><td></td><td>20.5</td><td></td><td></td><td>22.9</td><td></td><td></td><td>9 years</td></tr><tr><td>Deferred Cook Plant Life Cycle Management Project Costs - Michigan, FERC</td><td></td><td>10.1</td><td></td><td></td><td>11.1</td><td></td><td></td><td>10 years</td></tr><tr><td>Cook Plant Turbine - Indiana</td><td></td><td>7.8</td><td></td><td></td><td>8.4</td><td></td><td></td><td>14 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>21.1</td><td></td><td></td><td>17.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>194.8</td><td></td><td></td><td>229.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net</td><td></td><td>108.8</td><td></td><td></td><td>—</td><td></td><td></td><td>(c)</td></tr><tr><td>Cook Plant Nuclear Refueling Outage Levelization</td><td></td><td>43.0</td><td></td><td></td><td>55.7</td><td></td><td></td><td>3 years</td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>20.2</td><td></td><td></td><td>3.4</td><td></td><td></td><td>4 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>14.6</td><td></td><td></td><td>25.4</td><td></td><td></td><td>12 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Indiana Excess SO 2 Allowance Inventory - Indiana</td><td></td><td>11.9</td><td></td><td></td><td>14.8</td><td></td><td></td><td>4 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>10.9</td><td></td><td></td><td>11.8</td><td></td><td></td><td>24 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>7.3</td><td></td><td></td><td>7.0</td><td></td><td></td><td>3 years</td></tr><tr><td>Environmental Cost Rider - Indiana</td><td></td><td>1.4</td><td></td><td></td><td>8.1</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>20.2</td><td></td><td></td><td>17.6</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>238.3</td><td></td><td></td><td>143.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>433.1</td><td></td><td></td><td>373.1</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>548.1</td><td></td><td></td><td>$</td><td>406.3</td><td></td><td></td><td></td></tr></table>
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table
|
14.8
|
monetaryItemType
|
table: <entity> 14.8 </entity> <entity type> monetaryItemType </entity type> <context> Under-recovered Fuel Costs, Michigan - earns a return | $ | 10.6 | $ | 14.8 | 1 year </context>
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us-gaap:RegulatoryAssetsCurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>I&M</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Michigan - earns a return</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td>1 year</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>6.4</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>6.4</td><td></td><td></td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>74.0</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>NOLC Costs - Indiana (b)</td><td></td><td>26.7</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>6.3</td><td></td><td></td><td>29.7</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>1.6</td><td></td><td></td><td>3.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>108.6</td><td></td><td></td><td>33.0</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>115.0</td><td></td><td></td><td>33.2</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>98.0</td><td></td><td></td><td>122.5</td><td></td><td></td><td>4 years</td></tr><tr><td>Rockport Plant Dry Sorbent Injection System and Selective Catalytic Reduction</td><td></td><td>37.3</td><td></td><td></td><td>46.9</td><td></td><td></td><td>4 years</td></tr><tr><td>Cook Plant Uprate Project</td><td></td><td>20.5</td><td></td><td></td><td>22.9</td><td></td><td></td><td>9 years</td></tr><tr><td>Deferred Cook Plant Life Cycle Management Project Costs - Michigan, FERC</td><td></td><td>10.1</td><td></td><td></td><td>11.1</td><td></td><td></td><td>10 years</td></tr><tr><td>Cook Plant Turbine - Indiana</td><td></td><td>7.8</td><td></td><td></td><td>8.4</td><td></td><td></td><td>14 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>21.1</td><td></td><td></td><td>17.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>194.8</td><td></td><td></td><td>229.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net</td><td></td><td>108.8</td><td></td><td></td><td>—</td><td></td><td></td><td>(c)</td></tr><tr><td>Cook Plant Nuclear Refueling Outage Levelization</td><td></td><td>43.0</td><td></td><td></td><td>55.7</td><td></td><td></td><td>3 years</td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>20.2</td><td></td><td></td><td>3.4</td><td></td><td></td><td>4 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>14.6</td><td></td><td></td><td>25.4</td><td></td><td></td><td>12 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Indiana Excess SO 2 Allowance Inventory - Indiana</td><td></td><td>11.9</td><td></td><td></td><td>14.8</td><td></td><td></td><td>4 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>10.9</td><td></td><td></td><td>11.8</td><td></td><td></td><td>24 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>7.3</td><td></td><td></td><td>7.0</td><td></td><td></td><td>3 years</td></tr><tr><td>Environmental Cost Rider - Indiana</td><td></td><td>1.4</td><td></td><td></td><td>8.1</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>20.2</td><td></td><td></td><td>17.6</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>238.3</td><td></td><td></td><td>143.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>433.1</td><td></td><td></td><td>373.1</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>548.1</td><td></td><td></td><td>$</td><td>406.3</td><td></td><td></td><td></td></tr></table>
|
table
|
6.4
|
monetaryItemType
|
table: <entity> 6.4 </entity> <entity type> monetaryItemType </entity type> <context> Other Regulatory Assets Pending Final Regulatory Approval | $ | 6.4 | $ | 0.2 </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>I&M</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Michigan - earns a return</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td>1 year</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>6.4</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>6.4</td><td></td><td></td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>74.0</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>NOLC Costs - Indiana (b)</td><td></td><td>26.7</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>6.3</td><td></td><td></td><td>29.7</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>1.6</td><td></td><td></td><td>3.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>108.6</td><td></td><td></td><td>33.0</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>115.0</td><td></td><td></td><td>33.2</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>98.0</td><td></td><td></td><td>122.5</td><td></td><td></td><td>4 years</td></tr><tr><td>Rockport Plant Dry Sorbent Injection System and Selective Catalytic Reduction</td><td></td><td>37.3</td><td></td><td></td><td>46.9</td><td></td><td></td><td>4 years</td></tr><tr><td>Cook Plant Uprate Project</td><td></td><td>20.5</td><td></td><td></td><td>22.9</td><td></td><td></td><td>9 years</td></tr><tr><td>Deferred Cook Plant Life Cycle Management Project Costs - Michigan, FERC</td><td></td><td>10.1</td><td></td><td></td><td>11.1</td><td></td><td></td><td>10 years</td></tr><tr><td>Cook Plant Turbine - Indiana</td><td></td><td>7.8</td><td></td><td></td><td>8.4</td><td></td><td></td><td>14 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>21.1</td><td></td><td></td><td>17.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>194.8</td><td></td><td></td><td>229.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net</td><td></td><td>108.8</td><td></td><td></td><td>—</td><td></td><td></td><td>(c)</td></tr><tr><td>Cook Plant Nuclear Refueling Outage Levelization</td><td></td><td>43.0</td><td></td><td></td><td>55.7</td><td></td><td></td><td>3 years</td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>20.2</td><td></td><td></td><td>3.4</td><td></td><td></td><td>4 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>14.6</td><td></td><td></td><td>25.4</td><td></td><td></td><td>12 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Indiana Excess SO 2 Allowance Inventory - Indiana</td><td></td><td>11.9</td><td></td><td></td><td>14.8</td><td></td><td></td><td>4 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>10.9</td><td></td><td></td><td>11.8</td><td></td><td></td><td>24 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>7.3</td><td></td><td></td><td>7.0</td><td></td><td></td><td>3 years</td></tr><tr><td>Environmental Cost Rider - Indiana</td><td></td><td>1.4</td><td></td><td></td><td>8.1</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>20.2</td><td></td><td></td><td>17.6</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>238.3</td><td></td><td></td><td>143.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>433.1</td><td></td><td></td><td>373.1</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>548.1</td><td></td><td></td><td>$</td><td>406.3</td><td></td><td></td><td></td></tr></table>
|
table
|
0.2
|
monetaryItemType
|
table: <entity> 0.2 </entity> <entity type> monetaryItemType </entity type> <context> Other Regulatory Assets Pending Final Regulatory Approval | $ | 6.4 | $ | 0.2 </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>I&M</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Michigan - earns a return</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td>1 year</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>6.4</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>6.4</td><td></td><td></td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>74.0</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>NOLC Costs - Indiana (b)</td><td></td><td>26.7</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>6.3</td><td></td><td></td><td>29.7</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>1.6</td><td></td><td></td><td>3.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>108.6</td><td></td><td></td><td>33.0</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>115.0</td><td></td><td></td><td>33.2</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>98.0</td><td></td><td></td><td>122.5</td><td></td><td></td><td>4 years</td></tr><tr><td>Rockport Plant Dry Sorbent Injection System and Selective Catalytic Reduction</td><td></td><td>37.3</td><td></td><td></td><td>46.9</td><td></td><td></td><td>4 years</td></tr><tr><td>Cook Plant Uprate Project</td><td></td><td>20.5</td><td></td><td></td><td>22.9</td><td></td><td></td><td>9 years</td></tr><tr><td>Deferred Cook Plant Life Cycle Management Project Costs - Michigan, FERC</td><td></td><td>10.1</td><td></td><td></td><td>11.1</td><td></td><td></td><td>10 years</td></tr><tr><td>Cook Plant Turbine - Indiana</td><td></td><td>7.8</td><td></td><td></td><td>8.4</td><td></td><td></td><td>14 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>21.1</td><td></td><td></td><td>17.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>194.8</td><td></td><td></td><td>229.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net</td><td></td><td>108.8</td><td></td><td></td><td>—</td><td></td><td></td><td>(c)</td></tr><tr><td>Cook Plant Nuclear Refueling Outage Levelization</td><td></td><td>43.0</td><td></td><td></td><td>55.7</td><td></td><td></td><td>3 years</td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>20.2</td><td></td><td></td><td>3.4</td><td></td><td></td><td>4 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>14.6</td><td></td><td></td><td>25.4</td><td></td><td></td><td>12 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Indiana Excess SO 2 Allowance Inventory - Indiana</td><td></td><td>11.9</td><td></td><td></td><td>14.8</td><td></td><td></td><td>4 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>10.9</td><td></td><td></td><td>11.8</td><td></td><td></td><td>24 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>7.3</td><td></td><td></td><td>7.0</td><td></td><td></td><td>3 years</td></tr><tr><td>Environmental Cost Rider - Indiana</td><td></td><td>1.4</td><td></td><td></td><td>8.1</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>20.2</td><td></td><td></td><td>17.6</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>238.3</td><td></td><td></td><td>143.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>433.1</td><td></td><td></td><td>373.1</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>548.1</td><td></td><td></td><td>$</td><td>406.3</td><td></td><td></td><td></td></tr></table>
|
table
|
74.0
|
monetaryItemType
|
table: <entity> 74.0 </entity> <entity type> monetaryItemType </entity type> <context> Plant Retirement Costs - Asset Retirement Obligation Costs (a) | 74.0 | — </context>
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us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>I&M</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Michigan - earns a return</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td>1 year</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>6.4</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>6.4</td><td></td><td></td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>74.0</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>NOLC Costs - Indiana (b)</td><td></td><td>26.7</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>6.3</td><td></td><td></td><td>29.7</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>1.6</td><td></td><td></td><td>3.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>108.6</td><td></td><td></td><td>33.0</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>115.0</td><td></td><td></td><td>33.2</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>98.0</td><td></td><td></td><td>122.5</td><td></td><td></td><td>4 years</td></tr><tr><td>Rockport Plant Dry Sorbent Injection System and Selective Catalytic Reduction</td><td></td><td>37.3</td><td></td><td></td><td>46.9</td><td></td><td></td><td>4 years</td></tr><tr><td>Cook Plant Uprate Project</td><td></td><td>20.5</td><td></td><td></td><td>22.9</td><td></td><td></td><td>9 years</td></tr><tr><td>Deferred Cook Plant Life Cycle Management Project Costs - Michigan, FERC</td><td></td><td>10.1</td><td></td><td></td><td>11.1</td><td></td><td></td><td>10 years</td></tr><tr><td>Cook Plant Turbine - Indiana</td><td></td><td>7.8</td><td></td><td></td><td>8.4</td><td></td><td></td><td>14 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>21.1</td><td></td><td></td><td>17.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>194.8</td><td></td><td></td><td>229.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net</td><td></td><td>108.8</td><td></td><td></td><td>—</td><td></td><td></td><td>(c)</td></tr><tr><td>Cook Plant Nuclear Refueling Outage Levelization</td><td></td><td>43.0</td><td></td><td></td><td>55.7</td><td></td><td></td><td>3 years</td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>20.2</td><td></td><td></td><td>3.4</td><td></td><td></td><td>4 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>14.6</td><td></td><td></td><td>25.4</td><td></td><td></td><td>12 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Indiana Excess SO 2 Allowance Inventory - Indiana</td><td></td><td>11.9</td><td></td><td></td><td>14.8</td><td></td><td></td><td>4 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>10.9</td><td></td><td></td><td>11.8</td><td></td><td></td><td>24 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>7.3</td><td></td><td></td><td>7.0</td><td></td><td></td><td>3 years</td></tr><tr><td>Environmental Cost Rider - Indiana</td><td></td><td>1.4</td><td></td><td></td><td>8.1</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>20.2</td><td></td><td></td><td>17.6</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>238.3</td><td></td><td></td><td>143.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>433.1</td><td></td><td></td><td>373.1</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>548.1</td><td></td><td></td><td>$</td><td>406.3</td><td></td><td></td><td></td></tr></table>
|
table
|
—
|
monetaryItemType
|
table: <entity> — </entity> <entity type> monetaryItemType </entity type> <context> Plant Retirement Costs - Asset Retirement Obligation Costs (a) | 74.0 | — </context>
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us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>I&M</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Michigan - earns a return</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td>1 year</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>6.4</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>6.4</td><td></td><td></td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>74.0</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>NOLC Costs - Indiana (b)</td><td></td><td>26.7</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>6.3</td><td></td><td></td><td>29.7</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>1.6</td><td></td><td></td><td>3.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>108.6</td><td></td><td></td><td>33.0</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>115.0</td><td></td><td></td><td>33.2</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>98.0</td><td></td><td></td><td>122.5</td><td></td><td></td><td>4 years</td></tr><tr><td>Rockport Plant Dry Sorbent Injection System and Selective Catalytic Reduction</td><td></td><td>37.3</td><td></td><td></td><td>46.9</td><td></td><td></td><td>4 years</td></tr><tr><td>Cook Plant Uprate Project</td><td></td><td>20.5</td><td></td><td></td><td>22.9</td><td></td><td></td><td>9 years</td></tr><tr><td>Deferred Cook Plant Life Cycle Management Project Costs - Michigan, FERC</td><td></td><td>10.1</td><td></td><td></td><td>11.1</td><td></td><td></td><td>10 years</td></tr><tr><td>Cook Plant Turbine - Indiana</td><td></td><td>7.8</td><td></td><td></td><td>8.4</td><td></td><td></td><td>14 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>21.1</td><td></td><td></td><td>17.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>194.8</td><td></td><td></td><td>229.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net</td><td></td><td>108.8</td><td></td><td></td><td>—</td><td></td><td></td><td>(c)</td></tr><tr><td>Cook Plant Nuclear Refueling Outage Levelization</td><td></td><td>43.0</td><td></td><td></td><td>55.7</td><td></td><td></td><td>3 years</td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>20.2</td><td></td><td></td><td>3.4</td><td></td><td></td><td>4 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>14.6</td><td></td><td></td><td>25.4</td><td></td><td></td><td>12 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Indiana Excess SO 2 Allowance Inventory - Indiana</td><td></td><td>11.9</td><td></td><td></td><td>14.8</td><td></td><td></td><td>4 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>10.9</td><td></td><td></td><td>11.8</td><td></td><td></td><td>24 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>7.3</td><td></td><td></td><td>7.0</td><td></td><td></td><td>3 years</td></tr><tr><td>Environmental Cost Rider - Indiana</td><td></td><td>1.4</td><td></td><td></td><td>8.1</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>20.2</td><td></td><td></td><td>17.6</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>238.3</td><td></td><td></td><td>143.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>433.1</td><td></td><td></td><td>373.1</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>548.1</td><td></td><td></td><td>$</td><td>406.3</td><td></td><td></td><td></td></tr></table>
|
table
|
26.7
|
monetaryItemType
|
table: <entity> 26.7 </entity> <entity type> monetaryItemType </entity type> <context> NOLC Costs - Indiana (b) | 26.7 | — </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>I&M</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Michigan - earns a return</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td>1 year</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>6.4</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>6.4</td><td></td><td></td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>74.0</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>NOLC Costs - Indiana (b)</td><td></td><td>26.7</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>6.3</td><td></td><td></td><td>29.7</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>1.6</td><td></td><td></td><td>3.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>108.6</td><td></td><td></td><td>33.0</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>115.0</td><td></td><td></td><td>33.2</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>98.0</td><td></td><td></td><td>122.5</td><td></td><td></td><td>4 years</td></tr><tr><td>Rockport Plant Dry Sorbent Injection System and Selective Catalytic Reduction</td><td></td><td>37.3</td><td></td><td></td><td>46.9</td><td></td><td></td><td>4 years</td></tr><tr><td>Cook Plant Uprate Project</td><td></td><td>20.5</td><td></td><td></td><td>22.9</td><td></td><td></td><td>9 years</td></tr><tr><td>Deferred Cook Plant Life Cycle Management Project Costs - Michigan, FERC</td><td></td><td>10.1</td><td></td><td></td><td>11.1</td><td></td><td></td><td>10 years</td></tr><tr><td>Cook Plant Turbine - Indiana</td><td></td><td>7.8</td><td></td><td></td><td>8.4</td><td></td><td></td><td>14 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>21.1</td><td></td><td></td><td>17.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>194.8</td><td></td><td></td><td>229.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net</td><td></td><td>108.8</td><td></td><td></td><td>—</td><td></td><td></td><td>(c)</td></tr><tr><td>Cook Plant Nuclear Refueling Outage Levelization</td><td></td><td>43.0</td><td></td><td></td><td>55.7</td><td></td><td></td><td>3 years</td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>20.2</td><td></td><td></td><td>3.4</td><td></td><td></td><td>4 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>14.6</td><td></td><td></td><td>25.4</td><td></td><td></td><td>12 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Indiana Excess SO 2 Allowance Inventory - Indiana</td><td></td><td>11.9</td><td></td><td></td><td>14.8</td><td></td><td></td><td>4 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>10.9</td><td></td><td></td><td>11.8</td><td></td><td></td><td>24 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>7.3</td><td></td><td></td><td>7.0</td><td></td><td></td><td>3 years</td></tr><tr><td>Environmental Cost Rider - Indiana</td><td></td><td>1.4</td><td></td><td></td><td>8.1</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>20.2</td><td></td><td></td><td>17.6</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>238.3</td><td></td><td></td><td>143.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>433.1</td><td></td><td></td><td>373.1</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>548.1</td><td></td><td></td><td>$</td><td>406.3</td><td></td><td></td><td></td></tr></table>
|
table
|
6.3
|
monetaryItemType
|
table: <entity> 6.3 </entity> <entity type> monetaryItemType </entity type> <context> Storm-Related Costs - Indiana | 6.3 | 29.7 </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>I&M</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Michigan - earns a return</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td>1 year</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>6.4</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>6.4</td><td></td><td></td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>74.0</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>NOLC Costs - Indiana (b)</td><td></td><td>26.7</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>6.3</td><td></td><td></td><td>29.7</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>1.6</td><td></td><td></td><td>3.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>108.6</td><td></td><td></td><td>33.0</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>115.0</td><td></td><td></td><td>33.2</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>98.0</td><td></td><td></td><td>122.5</td><td></td><td></td><td>4 years</td></tr><tr><td>Rockport Plant Dry Sorbent Injection System and Selective Catalytic Reduction</td><td></td><td>37.3</td><td></td><td></td><td>46.9</td><td></td><td></td><td>4 years</td></tr><tr><td>Cook Plant Uprate Project</td><td></td><td>20.5</td><td></td><td></td><td>22.9</td><td></td><td></td><td>9 years</td></tr><tr><td>Deferred Cook Plant Life Cycle Management Project Costs - Michigan, FERC</td><td></td><td>10.1</td><td></td><td></td><td>11.1</td><td></td><td></td><td>10 years</td></tr><tr><td>Cook Plant Turbine - Indiana</td><td></td><td>7.8</td><td></td><td></td><td>8.4</td><td></td><td></td><td>14 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>21.1</td><td></td><td></td><td>17.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>194.8</td><td></td><td></td><td>229.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net</td><td></td><td>108.8</td><td></td><td></td><td>—</td><td></td><td></td><td>(c)</td></tr><tr><td>Cook Plant Nuclear Refueling Outage Levelization</td><td></td><td>43.0</td><td></td><td></td><td>55.7</td><td></td><td></td><td>3 years</td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>20.2</td><td></td><td></td><td>3.4</td><td></td><td></td><td>4 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>14.6</td><td></td><td></td><td>25.4</td><td></td><td></td><td>12 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Indiana Excess SO 2 Allowance Inventory - Indiana</td><td></td><td>11.9</td><td></td><td></td><td>14.8</td><td></td><td></td><td>4 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>10.9</td><td></td><td></td><td>11.8</td><td></td><td></td><td>24 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>7.3</td><td></td><td></td><td>7.0</td><td></td><td></td><td>3 years</td></tr><tr><td>Environmental Cost Rider - Indiana</td><td></td><td>1.4</td><td></td><td></td><td>8.1</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>20.2</td><td></td><td></td><td>17.6</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>238.3</td><td></td><td></td><td>143.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>433.1</td><td></td><td></td><td>373.1</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>548.1</td><td></td><td></td><td>$</td><td>406.3</td><td></td><td></td><td></td></tr></table>
|
table
|
29.7
|
monetaryItemType
|
table: <entity> 29.7 </entity> <entity type> monetaryItemType </entity type> <context> Storm-Related Costs - Indiana | 6.3 | 29.7 </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>I&M</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Michigan - earns a return</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td>1 year</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>6.4</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>6.4</td><td></td><td></td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>74.0</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>NOLC Costs - Indiana (b)</td><td></td><td>26.7</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>6.3</td><td></td><td></td><td>29.7</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>1.6</td><td></td><td></td><td>3.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>108.6</td><td></td><td></td><td>33.0</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>115.0</td><td></td><td></td><td>33.2</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>98.0</td><td></td><td></td><td>122.5</td><td></td><td></td><td>4 years</td></tr><tr><td>Rockport Plant Dry Sorbent Injection System and Selective Catalytic Reduction</td><td></td><td>37.3</td><td></td><td></td><td>46.9</td><td></td><td></td><td>4 years</td></tr><tr><td>Cook Plant Uprate Project</td><td></td><td>20.5</td><td></td><td></td><td>22.9</td><td></td><td></td><td>9 years</td></tr><tr><td>Deferred Cook Plant Life Cycle Management Project Costs - Michigan, FERC</td><td></td><td>10.1</td><td></td><td></td><td>11.1</td><td></td><td></td><td>10 years</td></tr><tr><td>Cook Plant Turbine - Indiana</td><td></td><td>7.8</td><td></td><td></td><td>8.4</td><td></td><td></td><td>14 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>21.1</td><td></td><td></td><td>17.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>194.8</td><td></td><td></td><td>229.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net</td><td></td><td>108.8</td><td></td><td></td><td>—</td><td></td><td></td><td>(c)</td></tr><tr><td>Cook Plant Nuclear Refueling Outage Levelization</td><td></td><td>43.0</td><td></td><td></td><td>55.7</td><td></td><td></td><td>3 years</td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>20.2</td><td></td><td></td><td>3.4</td><td></td><td></td><td>4 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>14.6</td><td></td><td></td><td>25.4</td><td></td><td></td><td>12 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Indiana Excess SO 2 Allowance Inventory - Indiana</td><td></td><td>11.9</td><td></td><td></td><td>14.8</td><td></td><td></td><td>4 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>10.9</td><td></td><td></td><td>11.8</td><td></td><td></td><td>24 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>7.3</td><td></td><td></td><td>7.0</td><td></td><td></td><td>3 years</td></tr><tr><td>Environmental Cost Rider - Indiana</td><td></td><td>1.4</td><td></td><td></td><td>8.1</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>20.2</td><td></td><td></td><td>17.6</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>238.3</td><td></td><td></td><td>143.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>433.1</td><td></td><td></td><td>373.1</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>548.1</td><td></td><td></td><td>$</td><td>406.3</td><td></td><td></td><td></td></tr></table>
|
table
|
1.6
|
monetaryItemType
|
table: <entity> 1.6 </entity> <entity type> monetaryItemType </entity type> <context> Other Regulatory Assets Pending Final Regulatory Approval | 1.6 | 3.3 </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>I&M</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Michigan - earns a return</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td>1 year</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>6.4</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>6.4</td><td></td><td></td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>74.0</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>NOLC Costs - Indiana (b)</td><td></td><td>26.7</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>6.3</td><td></td><td></td><td>29.7</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>1.6</td><td></td><td></td><td>3.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>108.6</td><td></td><td></td><td>33.0</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>115.0</td><td></td><td></td><td>33.2</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>98.0</td><td></td><td></td><td>122.5</td><td></td><td></td><td>4 years</td></tr><tr><td>Rockport Plant Dry Sorbent Injection System and Selective Catalytic Reduction</td><td></td><td>37.3</td><td></td><td></td><td>46.9</td><td></td><td></td><td>4 years</td></tr><tr><td>Cook Plant Uprate Project</td><td></td><td>20.5</td><td></td><td></td><td>22.9</td><td></td><td></td><td>9 years</td></tr><tr><td>Deferred Cook Plant Life Cycle Management Project Costs - Michigan, FERC</td><td></td><td>10.1</td><td></td><td></td><td>11.1</td><td></td><td></td><td>10 years</td></tr><tr><td>Cook Plant Turbine - Indiana</td><td></td><td>7.8</td><td></td><td></td><td>8.4</td><td></td><td></td><td>14 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>21.1</td><td></td><td></td><td>17.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>194.8</td><td></td><td></td><td>229.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net</td><td></td><td>108.8</td><td></td><td></td><td>—</td><td></td><td></td><td>(c)</td></tr><tr><td>Cook Plant Nuclear Refueling Outage Levelization</td><td></td><td>43.0</td><td></td><td></td><td>55.7</td><td></td><td></td><td>3 years</td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>20.2</td><td></td><td></td><td>3.4</td><td></td><td></td><td>4 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>14.6</td><td></td><td></td><td>25.4</td><td></td><td></td><td>12 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Indiana Excess SO 2 Allowance Inventory - Indiana</td><td></td><td>11.9</td><td></td><td></td><td>14.8</td><td></td><td></td><td>4 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>10.9</td><td></td><td></td><td>11.8</td><td></td><td></td><td>24 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>7.3</td><td></td><td></td><td>7.0</td><td></td><td></td><td>3 years</td></tr><tr><td>Environmental Cost Rider - Indiana</td><td></td><td>1.4</td><td></td><td></td><td>8.1</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>20.2</td><td></td><td></td><td>17.6</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>238.3</td><td></td><td></td><td>143.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>433.1</td><td></td><td></td><td>373.1</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>548.1</td><td></td><td></td><td>$</td><td>406.3</td><td></td><td></td><td></td></tr></table>
|
table
|
3.3
|
monetaryItemType
|
table: <entity> 3.3 </entity> <entity type> monetaryItemType </entity type> <context> Other Regulatory Assets Pending Final Regulatory Approval | 1.6 | 3.3 </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>I&M</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Michigan - earns a return</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td>1 year</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>6.4</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>6.4</td><td></td><td></td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>74.0</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>NOLC Costs - Indiana (b)</td><td></td><td>26.7</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>6.3</td><td></td><td></td><td>29.7</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>1.6</td><td></td><td></td><td>3.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>108.6</td><td></td><td></td><td>33.0</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>115.0</td><td></td><td></td><td>33.2</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>98.0</td><td></td><td></td><td>122.5</td><td></td><td></td><td>4 years</td></tr><tr><td>Rockport Plant Dry Sorbent Injection System and Selective Catalytic Reduction</td><td></td><td>37.3</td><td></td><td></td><td>46.9</td><td></td><td></td><td>4 years</td></tr><tr><td>Cook Plant Uprate Project</td><td></td><td>20.5</td><td></td><td></td><td>22.9</td><td></td><td></td><td>9 years</td></tr><tr><td>Deferred Cook Plant Life Cycle Management Project Costs - Michigan, FERC</td><td></td><td>10.1</td><td></td><td></td><td>11.1</td><td></td><td></td><td>10 years</td></tr><tr><td>Cook Plant Turbine - Indiana</td><td></td><td>7.8</td><td></td><td></td><td>8.4</td><td></td><td></td><td>14 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>21.1</td><td></td><td></td><td>17.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>194.8</td><td></td><td></td><td>229.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net</td><td></td><td>108.8</td><td></td><td></td><td>—</td><td></td><td></td><td>(c)</td></tr><tr><td>Cook Plant Nuclear Refueling Outage Levelization</td><td></td><td>43.0</td><td></td><td></td><td>55.7</td><td></td><td></td><td>3 years</td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>20.2</td><td></td><td></td><td>3.4</td><td></td><td></td><td>4 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>14.6</td><td></td><td></td><td>25.4</td><td></td><td></td><td>12 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Indiana Excess SO 2 Allowance Inventory - Indiana</td><td></td><td>11.9</td><td></td><td></td><td>14.8</td><td></td><td></td><td>4 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>10.9</td><td></td><td></td><td>11.8</td><td></td><td></td><td>24 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>7.3</td><td></td><td></td><td>7.0</td><td></td><td></td><td>3 years</td></tr><tr><td>Environmental Cost Rider - Indiana</td><td></td><td>1.4</td><td></td><td></td><td>8.1</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>20.2</td><td></td><td></td><td>17.6</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>238.3</td><td></td><td></td><td>143.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>433.1</td><td></td><td></td><td>373.1</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>548.1</td><td></td><td></td><td>$</td><td>406.3</td><td></td><td></td><td></td></tr></table>
|
table
|
108.6
|
monetaryItemType
|
table: <entity> 108.6 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Assets Currently Not Earning a Return | 108.6 | 33.0 </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>I&M</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Michigan - earns a return</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td>1 year</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>6.4</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>6.4</td><td></td><td></td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>74.0</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>NOLC Costs - Indiana (b)</td><td></td><td>26.7</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>6.3</td><td></td><td></td><td>29.7</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>1.6</td><td></td><td></td><td>3.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>108.6</td><td></td><td></td><td>33.0</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>115.0</td><td></td><td></td><td>33.2</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>98.0</td><td></td><td></td><td>122.5</td><td></td><td></td><td>4 years</td></tr><tr><td>Rockport Plant Dry Sorbent Injection System and Selective Catalytic Reduction</td><td></td><td>37.3</td><td></td><td></td><td>46.9</td><td></td><td></td><td>4 years</td></tr><tr><td>Cook Plant Uprate Project</td><td></td><td>20.5</td><td></td><td></td><td>22.9</td><td></td><td></td><td>9 years</td></tr><tr><td>Deferred Cook Plant Life Cycle Management Project Costs - Michigan, FERC</td><td></td><td>10.1</td><td></td><td></td><td>11.1</td><td></td><td></td><td>10 years</td></tr><tr><td>Cook Plant Turbine - Indiana</td><td></td><td>7.8</td><td></td><td></td><td>8.4</td><td></td><td></td><td>14 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>21.1</td><td></td><td></td><td>17.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>194.8</td><td></td><td></td><td>229.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net</td><td></td><td>108.8</td><td></td><td></td><td>—</td><td></td><td></td><td>(c)</td></tr><tr><td>Cook Plant Nuclear Refueling Outage Levelization</td><td></td><td>43.0</td><td></td><td></td><td>55.7</td><td></td><td></td><td>3 years</td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>20.2</td><td></td><td></td><td>3.4</td><td></td><td></td><td>4 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>14.6</td><td></td><td></td><td>25.4</td><td></td><td></td><td>12 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Indiana Excess SO 2 Allowance Inventory - Indiana</td><td></td><td>11.9</td><td></td><td></td><td>14.8</td><td></td><td></td><td>4 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>10.9</td><td></td><td></td><td>11.8</td><td></td><td></td><td>24 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>7.3</td><td></td><td></td><td>7.0</td><td></td><td></td><td>3 years</td></tr><tr><td>Environmental Cost Rider - Indiana</td><td></td><td>1.4</td><td></td><td></td><td>8.1</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>20.2</td><td></td><td></td><td>17.6</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>238.3</td><td></td><td></td><td>143.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>433.1</td><td></td><td></td><td>373.1</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>548.1</td><td></td><td></td><td>$</td><td>406.3</td><td></td><td></td><td></td></tr></table>
|
table
|
33.0
|
monetaryItemType
|
table: <entity> 33.0 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Assets Currently Not Earning a Return | 108.6 | 33.0 </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>I&M</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Michigan - earns a return</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td>1 year</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>6.4</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>6.4</td><td></td><td></td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>74.0</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>NOLC Costs - Indiana (b)</td><td></td><td>26.7</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>6.3</td><td></td><td></td><td>29.7</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>1.6</td><td></td><td></td><td>3.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>108.6</td><td></td><td></td><td>33.0</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>115.0</td><td></td><td></td><td>33.2</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>98.0</td><td></td><td></td><td>122.5</td><td></td><td></td><td>4 years</td></tr><tr><td>Rockport Plant Dry Sorbent Injection System and Selective Catalytic Reduction</td><td></td><td>37.3</td><td></td><td></td><td>46.9</td><td></td><td></td><td>4 years</td></tr><tr><td>Cook Plant Uprate Project</td><td></td><td>20.5</td><td></td><td></td><td>22.9</td><td></td><td></td><td>9 years</td></tr><tr><td>Deferred Cook Plant Life Cycle Management Project Costs - Michigan, FERC</td><td></td><td>10.1</td><td></td><td></td><td>11.1</td><td></td><td></td><td>10 years</td></tr><tr><td>Cook Plant Turbine - Indiana</td><td></td><td>7.8</td><td></td><td></td><td>8.4</td><td></td><td></td><td>14 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>21.1</td><td></td><td></td><td>17.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>194.8</td><td></td><td></td><td>229.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net</td><td></td><td>108.8</td><td></td><td></td><td>—</td><td></td><td></td><td>(c)</td></tr><tr><td>Cook Plant Nuclear Refueling Outage Levelization</td><td></td><td>43.0</td><td></td><td></td><td>55.7</td><td></td><td></td><td>3 years</td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>20.2</td><td></td><td></td><td>3.4</td><td></td><td></td><td>4 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>14.6</td><td></td><td></td><td>25.4</td><td></td><td></td><td>12 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Indiana Excess SO 2 Allowance Inventory - Indiana</td><td></td><td>11.9</td><td></td><td></td><td>14.8</td><td></td><td></td><td>4 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>10.9</td><td></td><td></td><td>11.8</td><td></td><td></td><td>24 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>7.3</td><td></td><td></td><td>7.0</td><td></td><td></td><td>3 years</td></tr><tr><td>Environmental Cost Rider - Indiana</td><td></td><td>1.4</td><td></td><td></td><td>8.1</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>20.2</td><td></td><td></td><td>17.6</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>238.3</td><td></td><td></td><td>143.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>433.1</td><td></td><td></td><td>373.1</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>548.1</td><td></td><td></td><td>$</td><td>406.3</td><td></td><td></td><td></td></tr></table>
|
table
|
115.0
|
monetaryItemType
|
table: <entity> 115.0 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Assets Pending Final Regulatory Approval | 115.0 | 33.2 </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>I&M</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Michigan - earns a return</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td>1 year</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>6.4</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>6.4</td><td></td><td></td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>74.0</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>NOLC Costs - Indiana (b)</td><td></td><td>26.7</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>6.3</td><td></td><td></td><td>29.7</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>1.6</td><td></td><td></td><td>3.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>108.6</td><td></td><td></td><td>33.0</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>115.0</td><td></td><td></td><td>33.2</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>98.0</td><td></td><td></td><td>122.5</td><td></td><td></td><td>4 years</td></tr><tr><td>Rockport Plant Dry Sorbent Injection System and Selective Catalytic Reduction</td><td></td><td>37.3</td><td></td><td></td><td>46.9</td><td></td><td></td><td>4 years</td></tr><tr><td>Cook Plant Uprate Project</td><td></td><td>20.5</td><td></td><td></td><td>22.9</td><td></td><td></td><td>9 years</td></tr><tr><td>Deferred Cook Plant Life Cycle Management Project Costs - Michigan, FERC</td><td></td><td>10.1</td><td></td><td></td><td>11.1</td><td></td><td></td><td>10 years</td></tr><tr><td>Cook Plant Turbine - Indiana</td><td></td><td>7.8</td><td></td><td></td><td>8.4</td><td></td><td></td><td>14 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>21.1</td><td></td><td></td><td>17.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>194.8</td><td></td><td></td><td>229.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net</td><td></td><td>108.8</td><td></td><td></td><td>—</td><td></td><td></td><td>(c)</td></tr><tr><td>Cook Plant Nuclear Refueling Outage Levelization</td><td></td><td>43.0</td><td></td><td></td><td>55.7</td><td></td><td></td><td>3 years</td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>20.2</td><td></td><td></td><td>3.4</td><td></td><td></td><td>4 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>14.6</td><td></td><td></td><td>25.4</td><td></td><td></td><td>12 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Indiana Excess SO 2 Allowance Inventory - Indiana</td><td></td><td>11.9</td><td></td><td></td><td>14.8</td><td></td><td></td><td>4 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>10.9</td><td></td><td></td><td>11.8</td><td></td><td></td><td>24 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>7.3</td><td></td><td></td><td>7.0</td><td></td><td></td><td>3 years</td></tr><tr><td>Environmental Cost Rider - Indiana</td><td></td><td>1.4</td><td></td><td></td><td>8.1</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>20.2</td><td></td><td></td><td>17.6</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>238.3</td><td></td><td></td><td>143.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>433.1</td><td></td><td></td><td>373.1</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>548.1</td><td></td><td></td><td>$</td><td>406.3</td><td></td><td></td><td></td></tr></table>
|
table
|
33.2
|
monetaryItemType
|
table: <entity> 33.2 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Assets Pending Final Regulatory Approval | 115.0 | 33.2 </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>I&M</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Michigan - earns a return</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td>1 year</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>6.4</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>6.4</td><td></td><td></td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>74.0</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>NOLC Costs - Indiana (b)</td><td></td><td>26.7</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>6.3</td><td></td><td></td><td>29.7</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>1.6</td><td></td><td></td><td>3.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>108.6</td><td></td><td></td><td>33.0</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>115.0</td><td></td><td></td><td>33.2</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>98.0</td><td></td><td></td><td>122.5</td><td></td><td></td><td>4 years</td></tr><tr><td>Rockport Plant Dry Sorbent Injection System and Selective Catalytic Reduction</td><td></td><td>37.3</td><td></td><td></td><td>46.9</td><td></td><td></td><td>4 years</td></tr><tr><td>Cook Plant Uprate Project</td><td></td><td>20.5</td><td></td><td></td><td>22.9</td><td></td><td></td><td>9 years</td></tr><tr><td>Deferred Cook Plant Life Cycle Management Project Costs - Michigan, FERC</td><td></td><td>10.1</td><td></td><td></td><td>11.1</td><td></td><td></td><td>10 years</td></tr><tr><td>Cook Plant Turbine - Indiana</td><td></td><td>7.8</td><td></td><td></td><td>8.4</td><td></td><td></td><td>14 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>21.1</td><td></td><td></td><td>17.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>194.8</td><td></td><td></td><td>229.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net</td><td></td><td>108.8</td><td></td><td></td><td>—</td><td></td><td></td><td>(c)</td></tr><tr><td>Cook Plant Nuclear Refueling Outage Levelization</td><td></td><td>43.0</td><td></td><td></td><td>55.7</td><td></td><td></td><td>3 years</td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>20.2</td><td></td><td></td><td>3.4</td><td></td><td></td><td>4 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>14.6</td><td></td><td></td><td>25.4</td><td></td><td></td><td>12 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Indiana Excess SO 2 Allowance Inventory - Indiana</td><td></td><td>11.9</td><td></td><td></td><td>14.8</td><td></td><td></td><td>4 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>10.9</td><td></td><td></td><td>11.8</td><td></td><td></td><td>24 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>7.3</td><td></td><td></td><td>7.0</td><td></td><td></td><td>3 years</td></tr><tr><td>Environmental Cost Rider - Indiana</td><td></td><td>1.4</td><td></td><td></td><td>8.1</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>20.2</td><td></td><td></td><td>17.6</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>238.3</td><td></td><td></td><td>143.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>433.1</td><td></td><td></td><td>373.1</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>548.1</td><td></td><td></td><td>$</td><td>406.3</td><td></td><td></td><td></td></tr></table>
|
table
|
98.0
|
monetaryItemType
|
table: <entity> 98.0 </entity> <entity type> monetaryItemType </entity type> <context> Plant Retirement Costs - Unrecovered Plant | 98.0 | 122.5 | 4 years </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>I&M</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Michigan - earns a return</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td>1 year</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>6.4</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>6.4</td><td></td><td></td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>74.0</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>NOLC Costs - Indiana (b)</td><td></td><td>26.7</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>6.3</td><td></td><td></td><td>29.7</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>1.6</td><td></td><td></td><td>3.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>108.6</td><td></td><td></td><td>33.0</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>115.0</td><td></td><td></td><td>33.2</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>98.0</td><td></td><td></td><td>122.5</td><td></td><td></td><td>4 years</td></tr><tr><td>Rockport Plant Dry Sorbent Injection System and Selective Catalytic Reduction</td><td></td><td>37.3</td><td></td><td></td><td>46.9</td><td></td><td></td><td>4 years</td></tr><tr><td>Cook Plant Uprate Project</td><td></td><td>20.5</td><td></td><td></td><td>22.9</td><td></td><td></td><td>9 years</td></tr><tr><td>Deferred Cook Plant Life Cycle Management Project Costs - Michigan, FERC</td><td></td><td>10.1</td><td></td><td></td><td>11.1</td><td></td><td></td><td>10 years</td></tr><tr><td>Cook Plant Turbine - Indiana</td><td></td><td>7.8</td><td></td><td></td><td>8.4</td><td></td><td></td><td>14 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>21.1</td><td></td><td></td><td>17.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>194.8</td><td></td><td></td><td>229.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net</td><td></td><td>108.8</td><td></td><td></td><td>—</td><td></td><td></td><td>(c)</td></tr><tr><td>Cook Plant Nuclear Refueling Outage Levelization</td><td></td><td>43.0</td><td></td><td></td><td>55.7</td><td></td><td></td><td>3 years</td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>20.2</td><td></td><td></td><td>3.4</td><td></td><td></td><td>4 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>14.6</td><td></td><td></td><td>25.4</td><td></td><td></td><td>12 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Indiana Excess SO 2 Allowance Inventory - Indiana</td><td></td><td>11.9</td><td></td><td></td><td>14.8</td><td></td><td></td><td>4 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>10.9</td><td></td><td></td><td>11.8</td><td></td><td></td><td>24 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>7.3</td><td></td><td></td><td>7.0</td><td></td><td></td><td>3 years</td></tr><tr><td>Environmental Cost Rider - Indiana</td><td></td><td>1.4</td><td></td><td></td><td>8.1</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>20.2</td><td></td><td></td><td>17.6</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>238.3</td><td></td><td></td><td>143.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>433.1</td><td></td><td></td><td>373.1</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>548.1</td><td></td><td></td><td>$</td><td>406.3</td><td></td><td></td><td></td></tr></table>
|
table
|
122.5
|
monetaryItemType
|
table: <entity> 122.5 </entity> <entity type> monetaryItemType </entity type> <context> Plant Retirement Costs - Unrecovered Plant | 98.0 | 122.5 | 4 years </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>I&M</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Michigan - earns a return</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td>1 year</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>6.4</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>6.4</td><td></td><td></td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>74.0</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>NOLC Costs - Indiana (b)</td><td></td><td>26.7</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>6.3</td><td></td><td></td><td>29.7</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>1.6</td><td></td><td></td><td>3.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>108.6</td><td></td><td></td><td>33.0</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>115.0</td><td></td><td></td><td>33.2</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>98.0</td><td></td><td></td><td>122.5</td><td></td><td></td><td>4 years</td></tr><tr><td>Rockport Plant Dry Sorbent Injection System and Selective Catalytic Reduction</td><td></td><td>37.3</td><td></td><td></td><td>46.9</td><td></td><td></td><td>4 years</td></tr><tr><td>Cook Plant Uprate Project</td><td></td><td>20.5</td><td></td><td></td><td>22.9</td><td></td><td></td><td>9 years</td></tr><tr><td>Deferred Cook Plant Life Cycle Management Project Costs - Michigan, FERC</td><td></td><td>10.1</td><td></td><td></td><td>11.1</td><td></td><td></td><td>10 years</td></tr><tr><td>Cook Plant Turbine - Indiana</td><td></td><td>7.8</td><td></td><td></td><td>8.4</td><td></td><td></td><td>14 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>21.1</td><td></td><td></td><td>17.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>194.8</td><td></td><td></td><td>229.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net</td><td></td><td>108.8</td><td></td><td></td><td>—</td><td></td><td></td><td>(c)</td></tr><tr><td>Cook Plant Nuclear Refueling Outage Levelization</td><td></td><td>43.0</td><td></td><td></td><td>55.7</td><td></td><td></td><td>3 years</td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>20.2</td><td></td><td></td><td>3.4</td><td></td><td></td><td>4 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>14.6</td><td></td><td></td><td>25.4</td><td></td><td></td><td>12 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Indiana Excess SO 2 Allowance Inventory - Indiana</td><td></td><td>11.9</td><td></td><td></td><td>14.8</td><td></td><td></td><td>4 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>10.9</td><td></td><td></td><td>11.8</td><td></td><td></td><td>24 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>7.3</td><td></td><td></td><td>7.0</td><td></td><td></td><td>3 years</td></tr><tr><td>Environmental Cost Rider - Indiana</td><td></td><td>1.4</td><td></td><td></td><td>8.1</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>20.2</td><td></td><td></td><td>17.6</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>238.3</td><td></td><td></td><td>143.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>433.1</td><td></td><td></td><td>373.1</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>548.1</td><td></td><td></td><td>$</td><td>406.3</td><td></td><td></td><td></td></tr></table>
|
table
|
37.3
|
monetaryItemType
|
table: <entity> 37.3 </entity> <entity type> monetaryItemType </entity type> <context> Rockport Plant Dry Sorbent Injection System and Selective Catalytic Reduction | 37.3 | 46.9 | 4 years </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>I&M</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Michigan - earns a return</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td>1 year</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>6.4</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>6.4</td><td></td><td></td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>74.0</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>NOLC Costs - Indiana (b)</td><td></td><td>26.7</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>6.3</td><td></td><td></td><td>29.7</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>1.6</td><td></td><td></td><td>3.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>108.6</td><td></td><td></td><td>33.0</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>115.0</td><td></td><td></td><td>33.2</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>98.0</td><td></td><td></td><td>122.5</td><td></td><td></td><td>4 years</td></tr><tr><td>Rockport Plant Dry Sorbent Injection System and Selective Catalytic Reduction</td><td></td><td>37.3</td><td></td><td></td><td>46.9</td><td></td><td></td><td>4 years</td></tr><tr><td>Cook Plant Uprate Project</td><td></td><td>20.5</td><td></td><td></td><td>22.9</td><td></td><td></td><td>9 years</td></tr><tr><td>Deferred Cook Plant Life Cycle Management Project Costs - Michigan, FERC</td><td></td><td>10.1</td><td></td><td></td><td>11.1</td><td></td><td></td><td>10 years</td></tr><tr><td>Cook Plant Turbine - Indiana</td><td></td><td>7.8</td><td></td><td></td><td>8.4</td><td></td><td></td><td>14 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>21.1</td><td></td><td></td><td>17.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>194.8</td><td></td><td></td><td>229.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net</td><td></td><td>108.8</td><td></td><td></td><td>—</td><td></td><td></td><td>(c)</td></tr><tr><td>Cook Plant Nuclear Refueling Outage Levelization</td><td></td><td>43.0</td><td></td><td></td><td>55.7</td><td></td><td></td><td>3 years</td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>20.2</td><td></td><td></td><td>3.4</td><td></td><td></td><td>4 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>14.6</td><td></td><td></td><td>25.4</td><td></td><td></td><td>12 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Indiana Excess SO 2 Allowance Inventory - Indiana</td><td></td><td>11.9</td><td></td><td></td><td>14.8</td><td></td><td></td><td>4 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>10.9</td><td></td><td></td><td>11.8</td><td></td><td></td><td>24 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>7.3</td><td></td><td></td><td>7.0</td><td></td><td></td><td>3 years</td></tr><tr><td>Environmental Cost Rider - Indiana</td><td></td><td>1.4</td><td></td><td></td><td>8.1</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>20.2</td><td></td><td></td><td>17.6</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>238.3</td><td></td><td></td><td>143.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>433.1</td><td></td><td></td><td>373.1</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>548.1</td><td></td><td></td><td>$</td><td>406.3</td><td></td><td></td><td></td></tr></table>
|
table
|
46.9
|
monetaryItemType
|
table: <entity> 46.9 </entity> <entity type> monetaryItemType </entity type> <context> Rockport Plant Dry Sorbent Injection System and Selective Catalytic Reduction | 37.3 | 46.9 | 4 years </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>I&M</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Michigan - earns a return</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td>1 year</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>6.4</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>6.4</td><td></td><td></td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>74.0</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>NOLC Costs - Indiana (b)</td><td></td><td>26.7</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>6.3</td><td></td><td></td><td>29.7</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>1.6</td><td></td><td></td><td>3.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>108.6</td><td></td><td></td><td>33.0</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>115.0</td><td></td><td></td><td>33.2</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>98.0</td><td></td><td></td><td>122.5</td><td></td><td></td><td>4 years</td></tr><tr><td>Rockport Plant Dry Sorbent Injection System and Selective Catalytic Reduction</td><td></td><td>37.3</td><td></td><td></td><td>46.9</td><td></td><td></td><td>4 years</td></tr><tr><td>Cook Plant Uprate Project</td><td></td><td>20.5</td><td></td><td></td><td>22.9</td><td></td><td></td><td>9 years</td></tr><tr><td>Deferred Cook Plant Life Cycle Management Project Costs - Michigan, FERC</td><td></td><td>10.1</td><td></td><td></td><td>11.1</td><td></td><td></td><td>10 years</td></tr><tr><td>Cook Plant Turbine - Indiana</td><td></td><td>7.8</td><td></td><td></td><td>8.4</td><td></td><td></td><td>14 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>21.1</td><td></td><td></td><td>17.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>194.8</td><td></td><td></td><td>229.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net</td><td></td><td>108.8</td><td></td><td></td><td>—</td><td></td><td></td><td>(c)</td></tr><tr><td>Cook Plant Nuclear Refueling Outage Levelization</td><td></td><td>43.0</td><td></td><td></td><td>55.7</td><td></td><td></td><td>3 years</td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>20.2</td><td></td><td></td><td>3.4</td><td></td><td></td><td>4 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>14.6</td><td></td><td></td><td>25.4</td><td></td><td></td><td>12 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Indiana Excess SO 2 Allowance Inventory - Indiana</td><td></td><td>11.9</td><td></td><td></td><td>14.8</td><td></td><td></td><td>4 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>10.9</td><td></td><td></td><td>11.8</td><td></td><td></td><td>24 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>7.3</td><td></td><td></td><td>7.0</td><td></td><td></td><td>3 years</td></tr><tr><td>Environmental Cost Rider - Indiana</td><td></td><td>1.4</td><td></td><td></td><td>8.1</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>20.2</td><td></td><td></td><td>17.6</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>238.3</td><td></td><td></td><td>143.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>433.1</td><td></td><td></td><td>373.1</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>548.1</td><td></td><td></td><td>$</td><td>406.3</td><td></td><td></td><td></td></tr></table>
|
table
|
20.5
|
monetaryItemType
|
table: <entity> 20.5 </entity> <entity type> monetaryItemType </entity type> <context> Cook Plant Uprate Project | 20.5 | 22.9 | 9 years </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>I&M</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Michigan - earns a return</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td>1 year</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>6.4</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>6.4</td><td></td><td></td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>74.0</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>NOLC Costs - Indiana (b)</td><td></td><td>26.7</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>6.3</td><td></td><td></td><td>29.7</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>1.6</td><td></td><td></td><td>3.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>108.6</td><td></td><td></td><td>33.0</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>115.0</td><td></td><td></td><td>33.2</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>98.0</td><td></td><td></td><td>122.5</td><td></td><td></td><td>4 years</td></tr><tr><td>Rockport Plant Dry Sorbent Injection System and Selective Catalytic Reduction</td><td></td><td>37.3</td><td></td><td></td><td>46.9</td><td></td><td></td><td>4 years</td></tr><tr><td>Cook Plant Uprate Project</td><td></td><td>20.5</td><td></td><td></td><td>22.9</td><td></td><td></td><td>9 years</td></tr><tr><td>Deferred Cook Plant Life Cycle Management Project Costs - Michigan, FERC</td><td></td><td>10.1</td><td></td><td></td><td>11.1</td><td></td><td></td><td>10 years</td></tr><tr><td>Cook Plant Turbine - Indiana</td><td></td><td>7.8</td><td></td><td></td><td>8.4</td><td></td><td></td><td>14 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>21.1</td><td></td><td></td><td>17.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>194.8</td><td></td><td></td><td>229.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net</td><td></td><td>108.8</td><td></td><td></td><td>—</td><td></td><td></td><td>(c)</td></tr><tr><td>Cook Plant Nuclear Refueling Outage Levelization</td><td></td><td>43.0</td><td></td><td></td><td>55.7</td><td></td><td></td><td>3 years</td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>20.2</td><td></td><td></td><td>3.4</td><td></td><td></td><td>4 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>14.6</td><td></td><td></td><td>25.4</td><td></td><td></td><td>12 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Indiana Excess SO 2 Allowance Inventory - Indiana</td><td></td><td>11.9</td><td></td><td></td><td>14.8</td><td></td><td></td><td>4 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>10.9</td><td></td><td></td><td>11.8</td><td></td><td></td><td>24 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>7.3</td><td></td><td></td><td>7.0</td><td></td><td></td><td>3 years</td></tr><tr><td>Environmental Cost Rider - Indiana</td><td></td><td>1.4</td><td></td><td></td><td>8.1</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>20.2</td><td></td><td></td><td>17.6</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>238.3</td><td></td><td></td><td>143.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>433.1</td><td></td><td></td><td>373.1</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>548.1</td><td></td><td></td><td>$</td><td>406.3</td><td></td><td></td><td></td></tr></table>
|
table
|
22.9
|
monetaryItemType
|
table: <entity> 22.9 </entity> <entity type> monetaryItemType </entity type> <context> Cook Plant Uprate Project | 20.5 | 22.9 | 9 years </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>I&M</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Michigan - earns a return</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td>1 year</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>6.4</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>6.4</td><td></td><td></td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>74.0</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>NOLC Costs - Indiana (b)</td><td></td><td>26.7</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>6.3</td><td></td><td></td><td>29.7</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>1.6</td><td></td><td></td><td>3.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>108.6</td><td></td><td></td><td>33.0</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>115.0</td><td></td><td></td><td>33.2</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>98.0</td><td></td><td></td><td>122.5</td><td></td><td></td><td>4 years</td></tr><tr><td>Rockport Plant Dry Sorbent Injection System and Selective Catalytic Reduction</td><td></td><td>37.3</td><td></td><td></td><td>46.9</td><td></td><td></td><td>4 years</td></tr><tr><td>Cook Plant Uprate Project</td><td></td><td>20.5</td><td></td><td></td><td>22.9</td><td></td><td></td><td>9 years</td></tr><tr><td>Deferred Cook Plant Life Cycle Management Project Costs - Michigan, FERC</td><td></td><td>10.1</td><td></td><td></td><td>11.1</td><td></td><td></td><td>10 years</td></tr><tr><td>Cook Plant Turbine - Indiana</td><td></td><td>7.8</td><td></td><td></td><td>8.4</td><td></td><td></td><td>14 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>21.1</td><td></td><td></td><td>17.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>194.8</td><td></td><td></td><td>229.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net</td><td></td><td>108.8</td><td></td><td></td><td>—</td><td></td><td></td><td>(c)</td></tr><tr><td>Cook Plant Nuclear Refueling Outage Levelization</td><td></td><td>43.0</td><td></td><td></td><td>55.7</td><td></td><td></td><td>3 years</td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>20.2</td><td></td><td></td><td>3.4</td><td></td><td></td><td>4 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>14.6</td><td></td><td></td><td>25.4</td><td></td><td></td><td>12 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Indiana Excess SO 2 Allowance Inventory - Indiana</td><td></td><td>11.9</td><td></td><td></td><td>14.8</td><td></td><td></td><td>4 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>10.9</td><td></td><td></td><td>11.8</td><td></td><td></td><td>24 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>7.3</td><td></td><td></td><td>7.0</td><td></td><td></td><td>3 years</td></tr><tr><td>Environmental Cost Rider - Indiana</td><td></td><td>1.4</td><td></td><td></td><td>8.1</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>20.2</td><td></td><td></td><td>17.6</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>238.3</td><td></td><td></td><td>143.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>433.1</td><td></td><td></td><td>373.1</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>548.1</td><td></td><td></td><td>$</td><td>406.3</td><td></td><td></td><td></td></tr></table>
|
table
|
10.1
|
monetaryItemType
|
table: <entity> 10.1 </entity> <entity type> monetaryItemType </entity type> <context> Deferred Cook Plant Life Cycle Management Project Costs - Michigan, FERC | 10.1 | 11.1 | 10 years </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>I&M</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Michigan - earns a return</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td>1 year</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>6.4</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>6.4</td><td></td><td></td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>74.0</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>NOLC Costs - Indiana (b)</td><td></td><td>26.7</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>6.3</td><td></td><td></td><td>29.7</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>1.6</td><td></td><td></td><td>3.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>108.6</td><td></td><td></td><td>33.0</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>115.0</td><td></td><td></td><td>33.2</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>98.0</td><td></td><td></td><td>122.5</td><td></td><td></td><td>4 years</td></tr><tr><td>Rockport Plant Dry Sorbent Injection System and Selective Catalytic Reduction</td><td></td><td>37.3</td><td></td><td></td><td>46.9</td><td></td><td></td><td>4 years</td></tr><tr><td>Cook Plant Uprate Project</td><td></td><td>20.5</td><td></td><td></td><td>22.9</td><td></td><td></td><td>9 years</td></tr><tr><td>Deferred Cook Plant Life Cycle Management Project Costs - Michigan, FERC</td><td></td><td>10.1</td><td></td><td></td><td>11.1</td><td></td><td></td><td>10 years</td></tr><tr><td>Cook Plant Turbine - Indiana</td><td></td><td>7.8</td><td></td><td></td><td>8.4</td><td></td><td></td><td>14 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>21.1</td><td></td><td></td><td>17.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>194.8</td><td></td><td></td><td>229.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net</td><td></td><td>108.8</td><td></td><td></td><td>—</td><td></td><td></td><td>(c)</td></tr><tr><td>Cook Plant Nuclear Refueling Outage Levelization</td><td></td><td>43.0</td><td></td><td></td><td>55.7</td><td></td><td></td><td>3 years</td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>20.2</td><td></td><td></td><td>3.4</td><td></td><td></td><td>4 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>14.6</td><td></td><td></td><td>25.4</td><td></td><td></td><td>12 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Indiana Excess SO 2 Allowance Inventory - Indiana</td><td></td><td>11.9</td><td></td><td></td><td>14.8</td><td></td><td></td><td>4 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>10.9</td><td></td><td></td><td>11.8</td><td></td><td></td><td>24 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>7.3</td><td></td><td></td><td>7.0</td><td></td><td></td><td>3 years</td></tr><tr><td>Environmental Cost Rider - Indiana</td><td></td><td>1.4</td><td></td><td></td><td>8.1</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>20.2</td><td></td><td></td><td>17.6</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>238.3</td><td></td><td></td><td>143.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>433.1</td><td></td><td></td><td>373.1</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>548.1</td><td></td><td></td><td>$</td><td>406.3</td><td></td><td></td><td></td></tr></table>
|
table
|
11.1
|
monetaryItemType
|
table: <entity> 11.1 </entity> <entity type> monetaryItemType </entity type> <context> Deferred Cook Plant Life Cycle Management Project Costs - Michigan, FERC | 10.1 | 11.1 | 10 years </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>I&M</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Michigan - earns a return</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td>1 year</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>6.4</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>6.4</td><td></td><td></td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>74.0</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>NOLC Costs - Indiana (b)</td><td></td><td>26.7</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>6.3</td><td></td><td></td><td>29.7</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>1.6</td><td></td><td></td><td>3.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>108.6</td><td></td><td></td><td>33.0</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>115.0</td><td></td><td></td><td>33.2</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>98.0</td><td></td><td></td><td>122.5</td><td></td><td></td><td>4 years</td></tr><tr><td>Rockport Plant Dry Sorbent Injection System and Selective Catalytic Reduction</td><td></td><td>37.3</td><td></td><td></td><td>46.9</td><td></td><td></td><td>4 years</td></tr><tr><td>Cook Plant Uprate Project</td><td></td><td>20.5</td><td></td><td></td><td>22.9</td><td></td><td></td><td>9 years</td></tr><tr><td>Deferred Cook Plant Life Cycle Management Project Costs - Michigan, FERC</td><td></td><td>10.1</td><td></td><td></td><td>11.1</td><td></td><td></td><td>10 years</td></tr><tr><td>Cook Plant Turbine - Indiana</td><td></td><td>7.8</td><td></td><td></td><td>8.4</td><td></td><td></td><td>14 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>21.1</td><td></td><td></td><td>17.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>194.8</td><td></td><td></td><td>229.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net</td><td></td><td>108.8</td><td></td><td></td><td>—</td><td></td><td></td><td>(c)</td></tr><tr><td>Cook Plant Nuclear Refueling Outage Levelization</td><td></td><td>43.0</td><td></td><td></td><td>55.7</td><td></td><td></td><td>3 years</td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>20.2</td><td></td><td></td><td>3.4</td><td></td><td></td><td>4 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>14.6</td><td></td><td></td><td>25.4</td><td></td><td></td><td>12 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Indiana Excess SO 2 Allowance Inventory - Indiana</td><td></td><td>11.9</td><td></td><td></td><td>14.8</td><td></td><td></td><td>4 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>10.9</td><td></td><td></td><td>11.8</td><td></td><td></td><td>24 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>7.3</td><td></td><td></td><td>7.0</td><td></td><td></td><td>3 years</td></tr><tr><td>Environmental Cost Rider - Indiana</td><td></td><td>1.4</td><td></td><td></td><td>8.1</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>20.2</td><td></td><td></td><td>17.6</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>238.3</td><td></td><td></td><td>143.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>433.1</td><td></td><td></td><td>373.1</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>548.1</td><td></td><td></td><td>$</td><td>406.3</td><td></td><td></td><td></td></tr></table>
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table
|
7.8
|
monetaryItemType
|
table: <entity> 7.8 </entity> <entity type> monetaryItemType </entity type> <context> Cook Plant Turbine - Indiana | 7.8 | 8.4 | 14 years </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>I&M</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Michigan - earns a return</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td>1 year</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>6.4</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>6.4</td><td></td><td></td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>74.0</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>NOLC Costs - Indiana (b)</td><td></td><td>26.7</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>6.3</td><td></td><td></td><td>29.7</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>1.6</td><td></td><td></td><td>3.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>108.6</td><td></td><td></td><td>33.0</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>115.0</td><td></td><td></td><td>33.2</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>98.0</td><td></td><td></td><td>122.5</td><td></td><td></td><td>4 years</td></tr><tr><td>Rockport Plant Dry Sorbent Injection System and Selective Catalytic Reduction</td><td></td><td>37.3</td><td></td><td></td><td>46.9</td><td></td><td></td><td>4 years</td></tr><tr><td>Cook Plant Uprate Project</td><td></td><td>20.5</td><td></td><td></td><td>22.9</td><td></td><td></td><td>9 years</td></tr><tr><td>Deferred Cook Plant Life Cycle Management Project Costs - Michigan, FERC</td><td></td><td>10.1</td><td></td><td></td><td>11.1</td><td></td><td></td><td>10 years</td></tr><tr><td>Cook Plant Turbine - Indiana</td><td></td><td>7.8</td><td></td><td></td><td>8.4</td><td></td><td></td><td>14 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>21.1</td><td></td><td></td><td>17.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>194.8</td><td></td><td></td><td>229.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net</td><td></td><td>108.8</td><td></td><td></td><td>—</td><td></td><td></td><td>(c)</td></tr><tr><td>Cook Plant Nuclear Refueling Outage Levelization</td><td></td><td>43.0</td><td></td><td></td><td>55.7</td><td></td><td></td><td>3 years</td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>20.2</td><td></td><td></td><td>3.4</td><td></td><td></td><td>4 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>14.6</td><td></td><td></td><td>25.4</td><td></td><td></td><td>12 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Indiana Excess SO 2 Allowance Inventory - Indiana</td><td></td><td>11.9</td><td></td><td></td><td>14.8</td><td></td><td></td><td>4 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>10.9</td><td></td><td></td><td>11.8</td><td></td><td></td><td>24 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>7.3</td><td></td><td></td><td>7.0</td><td></td><td></td><td>3 years</td></tr><tr><td>Environmental Cost Rider - Indiana</td><td></td><td>1.4</td><td></td><td></td><td>8.1</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>20.2</td><td></td><td></td><td>17.6</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>238.3</td><td></td><td></td><td>143.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>433.1</td><td></td><td></td><td>373.1</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>548.1</td><td></td><td></td><td>$</td><td>406.3</td><td></td><td></td><td></td></tr></table>
|
table
|
8.4
|
monetaryItemType
|
table: <entity> 8.4 </entity> <entity type> monetaryItemType </entity type> <context> Cook Plant Turbine - Indiana | 7.8 | 8.4 | 14 years </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>I&M</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Michigan - earns a return</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td>1 year</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>6.4</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>6.4</td><td></td><td></td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>74.0</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>NOLC Costs - Indiana (b)</td><td></td><td>26.7</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>6.3</td><td></td><td></td><td>29.7</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>1.6</td><td></td><td></td><td>3.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>108.6</td><td></td><td></td><td>33.0</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>115.0</td><td></td><td></td><td>33.2</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>98.0</td><td></td><td></td><td>122.5</td><td></td><td></td><td>4 years</td></tr><tr><td>Rockport Plant Dry Sorbent Injection System and Selective Catalytic Reduction</td><td></td><td>37.3</td><td></td><td></td><td>46.9</td><td></td><td></td><td>4 years</td></tr><tr><td>Cook Plant Uprate Project</td><td></td><td>20.5</td><td></td><td></td><td>22.9</td><td></td><td></td><td>9 years</td></tr><tr><td>Deferred Cook Plant Life Cycle Management Project Costs - Michigan, FERC</td><td></td><td>10.1</td><td></td><td></td><td>11.1</td><td></td><td></td><td>10 years</td></tr><tr><td>Cook Plant Turbine - Indiana</td><td></td><td>7.8</td><td></td><td></td><td>8.4</td><td></td><td></td><td>14 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>21.1</td><td></td><td></td><td>17.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>194.8</td><td></td><td></td><td>229.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net</td><td></td><td>108.8</td><td></td><td></td><td>—</td><td></td><td></td><td>(c)</td></tr><tr><td>Cook Plant Nuclear Refueling Outage Levelization</td><td></td><td>43.0</td><td></td><td></td><td>55.7</td><td></td><td></td><td>3 years</td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>20.2</td><td></td><td></td><td>3.4</td><td></td><td></td><td>4 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>14.6</td><td></td><td></td><td>25.4</td><td></td><td></td><td>12 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Indiana Excess SO 2 Allowance Inventory - Indiana</td><td></td><td>11.9</td><td></td><td></td><td>14.8</td><td></td><td></td><td>4 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>10.9</td><td></td><td></td><td>11.8</td><td></td><td></td><td>24 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>7.3</td><td></td><td></td><td>7.0</td><td></td><td></td><td>3 years</td></tr><tr><td>Environmental Cost Rider - Indiana</td><td></td><td>1.4</td><td></td><td></td><td>8.1</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>20.2</td><td></td><td></td><td>17.6</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>238.3</td><td></td><td></td><td>143.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>433.1</td><td></td><td></td><td>373.1</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>548.1</td><td></td><td></td><td>$</td><td>406.3</td><td></td><td></td><td></td></tr></table>
|
table
|
21.1
|
monetaryItemType
|
table: <entity> 21.1 </entity> <entity type> monetaryItemType </entity type> <context> Other Regulatory Assets Approved for Recovery | 21.1 | 17.5 | various </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>I&M</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Michigan - earns a return</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td>1 year</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>6.4</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>6.4</td><td></td><td></td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>74.0</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>NOLC Costs - Indiana (b)</td><td></td><td>26.7</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>6.3</td><td></td><td></td><td>29.7</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>1.6</td><td></td><td></td><td>3.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>108.6</td><td></td><td></td><td>33.0</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>115.0</td><td></td><td></td><td>33.2</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>98.0</td><td></td><td></td><td>122.5</td><td></td><td></td><td>4 years</td></tr><tr><td>Rockport Plant Dry Sorbent Injection System and Selective Catalytic Reduction</td><td></td><td>37.3</td><td></td><td></td><td>46.9</td><td></td><td></td><td>4 years</td></tr><tr><td>Cook Plant Uprate Project</td><td></td><td>20.5</td><td></td><td></td><td>22.9</td><td></td><td></td><td>9 years</td></tr><tr><td>Deferred Cook Plant Life Cycle Management Project Costs - Michigan, FERC</td><td></td><td>10.1</td><td></td><td></td><td>11.1</td><td></td><td></td><td>10 years</td></tr><tr><td>Cook Plant Turbine - Indiana</td><td></td><td>7.8</td><td></td><td></td><td>8.4</td><td></td><td></td><td>14 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>21.1</td><td></td><td></td><td>17.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>194.8</td><td></td><td></td><td>229.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net</td><td></td><td>108.8</td><td></td><td></td><td>—</td><td></td><td></td><td>(c)</td></tr><tr><td>Cook Plant Nuclear Refueling Outage Levelization</td><td></td><td>43.0</td><td></td><td></td><td>55.7</td><td></td><td></td><td>3 years</td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>20.2</td><td></td><td></td><td>3.4</td><td></td><td></td><td>4 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>14.6</td><td></td><td></td><td>25.4</td><td></td><td></td><td>12 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Indiana Excess SO 2 Allowance Inventory - Indiana</td><td></td><td>11.9</td><td></td><td></td><td>14.8</td><td></td><td></td><td>4 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>10.9</td><td></td><td></td><td>11.8</td><td></td><td></td><td>24 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>7.3</td><td></td><td></td><td>7.0</td><td></td><td></td><td>3 years</td></tr><tr><td>Environmental Cost Rider - Indiana</td><td></td><td>1.4</td><td></td><td></td><td>8.1</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>20.2</td><td></td><td></td><td>17.6</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>238.3</td><td></td><td></td><td>143.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>433.1</td><td></td><td></td><td>373.1</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>548.1</td><td></td><td></td><td>$</td><td>406.3</td><td></td><td></td><td></td></tr></table>
|
table
|
17.5
|
monetaryItemType
|
table: <entity> 17.5 </entity> <entity type> monetaryItemType </entity type> <context> Other Regulatory Assets Approved for Recovery | 21.1 | 17.5 | various </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>I&M</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Michigan - earns a return</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td>1 year</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>6.4</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>6.4</td><td></td><td></td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>74.0</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>NOLC Costs - Indiana (b)</td><td></td><td>26.7</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>6.3</td><td></td><td></td><td>29.7</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>1.6</td><td></td><td></td><td>3.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>108.6</td><td></td><td></td><td>33.0</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>115.0</td><td></td><td></td><td>33.2</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>98.0</td><td></td><td></td><td>122.5</td><td></td><td></td><td>4 years</td></tr><tr><td>Rockport Plant Dry Sorbent Injection System and Selective Catalytic Reduction</td><td></td><td>37.3</td><td></td><td></td><td>46.9</td><td></td><td></td><td>4 years</td></tr><tr><td>Cook Plant Uprate Project</td><td></td><td>20.5</td><td></td><td></td><td>22.9</td><td></td><td></td><td>9 years</td></tr><tr><td>Deferred Cook Plant Life Cycle Management Project Costs - Michigan, FERC</td><td></td><td>10.1</td><td></td><td></td><td>11.1</td><td></td><td></td><td>10 years</td></tr><tr><td>Cook Plant Turbine - Indiana</td><td></td><td>7.8</td><td></td><td></td><td>8.4</td><td></td><td></td><td>14 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>21.1</td><td></td><td></td><td>17.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>194.8</td><td></td><td></td><td>229.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net</td><td></td><td>108.8</td><td></td><td></td><td>—</td><td></td><td></td><td>(c)</td></tr><tr><td>Cook Plant Nuclear Refueling Outage Levelization</td><td></td><td>43.0</td><td></td><td></td><td>55.7</td><td></td><td></td><td>3 years</td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>20.2</td><td></td><td></td><td>3.4</td><td></td><td></td><td>4 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>14.6</td><td></td><td></td><td>25.4</td><td></td><td></td><td>12 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Indiana Excess SO 2 Allowance Inventory - Indiana</td><td></td><td>11.9</td><td></td><td></td><td>14.8</td><td></td><td></td><td>4 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>10.9</td><td></td><td></td><td>11.8</td><td></td><td></td><td>24 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>7.3</td><td></td><td></td><td>7.0</td><td></td><td></td><td>3 years</td></tr><tr><td>Environmental Cost Rider - Indiana</td><td></td><td>1.4</td><td></td><td></td><td>8.1</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>20.2</td><td></td><td></td><td>17.6</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>238.3</td><td></td><td></td><td>143.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>433.1</td><td></td><td></td><td>373.1</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>548.1</td><td></td><td></td><td>$</td><td>406.3</td><td></td><td></td><td></td></tr></table>
|
table
|
194.8
|
monetaryItemType
|
table: <entity> 194.8 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Assets Currently Earning a Return | 194.8 | 229.3 </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>I&M</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Michigan - earns a return</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td>1 year</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>6.4</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>6.4</td><td></td><td></td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>74.0</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>NOLC Costs - Indiana (b)</td><td></td><td>26.7</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>6.3</td><td></td><td></td><td>29.7</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>1.6</td><td></td><td></td><td>3.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>108.6</td><td></td><td></td><td>33.0</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>115.0</td><td></td><td></td><td>33.2</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>98.0</td><td></td><td></td><td>122.5</td><td></td><td></td><td>4 years</td></tr><tr><td>Rockport Plant Dry Sorbent Injection System and Selective Catalytic Reduction</td><td></td><td>37.3</td><td></td><td></td><td>46.9</td><td></td><td></td><td>4 years</td></tr><tr><td>Cook Plant Uprate Project</td><td></td><td>20.5</td><td></td><td></td><td>22.9</td><td></td><td></td><td>9 years</td></tr><tr><td>Deferred Cook Plant Life Cycle Management Project Costs - Michigan, FERC</td><td></td><td>10.1</td><td></td><td></td><td>11.1</td><td></td><td></td><td>10 years</td></tr><tr><td>Cook Plant Turbine - Indiana</td><td></td><td>7.8</td><td></td><td></td><td>8.4</td><td></td><td></td><td>14 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>21.1</td><td></td><td></td><td>17.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>194.8</td><td></td><td></td><td>229.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net</td><td></td><td>108.8</td><td></td><td></td><td>—</td><td></td><td></td><td>(c)</td></tr><tr><td>Cook Plant Nuclear Refueling Outage Levelization</td><td></td><td>43.0</td><td></td><td></td><td>55.7</td><td></td><td></td><td>3 years</td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>20.2</td><td></td><td></td><td>3.4</td><td></td><td></td><td>4 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>14.6</td><td></td><td></td><td>25.4</td><td></td><td></td><td>12 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Indiana Excess SO 2 Allowance Inventory - Indiana</td><td></td><td>11.9</td><td></td><td></td><td>14.8</td><td></td><td></td><td>4 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>10.9</td><td></td><td></td><td>11.8</td><td></td><td></td><td>24 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>7.3</td><td></td><td></td><td>7.0</td><td></td><td></td><td>3 years</td></tr><tr><td>Environmental Cost Rider - Indiana</td><td></td><td>1.4</td><td></td><td></td><td>8.1</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>20.2</td><td></td><td></td><td>17.6</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>238.3</td><td></td><td></td><td>143.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>433.1</td><td></td><td></td><td>373.1</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>548.1</td><td></td><td></td><td>$</td><td>406.3</td><td></td><td></td><td></td></tr></table>
|
table
|
229.3
|
monetaryItemType
|
table: <entity> 229.3 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Assets Currently Earning a Return | 194.8 | 229.3 </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>I&M</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Michigan - earns a return</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td>1 year</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>6.4</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>6.4</td><td></td><td></td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>74.0</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>NOLC Costs - Indiana (b)</td><td></td><td>26.7</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>6.3</td><td></td><td></td><td>29.7</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>1.6</td><td></td><td></td><td>3.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>108.6</td><td></td><td></td><td>33.0</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>115.0</td><td></td><td></td><td>33.2</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>98.0</td><td></td><td></td><td>122.5</td><td></td><td></td><td>4 years</td></tr><tr><td>Rockport Plant Dry Sorbent Injection System and Selective Catalytic Reduction</td><td></td><td>37.3</td><td></td><td></td><td>46.9</td><td></td><td></td><td>4 years</td></tr><tr><td>Cook Plant Uprate Project</td><td></td><td>20.5</td><td></td><td></td><td>22.9</td><td></td><td></td><td>9 years</td></tr><tr><td>Deferred Cook Plant Life Cycle Management Project Costs - Michigan, FERC</td><td></td><td>10.1</td><td></td><td></td><td>11.1</td><td></td><td></td><td>10 years</td></tr><tr><td>Cook Plant Turbine - Indiana</td><td></td><td>7.8</td><td></td><td></td><td>8.4</td><td></td><td></td><td>14 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>21.1</td><td></td><td></td><td>17.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>194.8</td><td></td><td></td><td>229.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net</td><td></td><td>108.8</td><td></td><td></td><td>—</td><td></td><td></td><td>(c)</td></tr><tr><td>Cook Plant Nuclear Refueling Outage Levelization</td><td></td><td>43.0</td><td></td><td></td><td>55.7</td><td></td><td></td><td>3 years</td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>20.2</td><td></td><td></td><td>3.4</td><td></td><td></td><td>4 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>14.6</td><td></td><td></td><td>25.4</td><td></td><td></td><td>12 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Indiana Excess SO 2 Allowance Inventory - Indiana</td><td></td><td>11.9</td><td></td><td></td><td>14.8</td><td></td><td></td><td>4 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>10.9</td><td></td><td></td><td>11.8</td><td></td><td></td><td>24 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>7.3</td><td></td><td></td><td>7.0</td><td></td><td></td><td>3 years</td></tr><tr><td>Environmental Cost Rider - Indiana</td><td></td><td>1.4</td><td></td><td></td><td>8.1</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>20.2</td><td></td><td></td><td>17.6</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>238.3</td><td></td><td></td><td>143.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>433.1</td><td></td><td></td><td>373.1</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>548.1</td><td></td><td></td><td>$</td><td>406.3</td><td></td><td></td><td></td></tr></table>
|
table
|
108.8
|
monetaryItemType
|
table: <entity> 108.8 </entity> <entity type> monetaryItemType </entity type> <context> Income Taxes, Net | 108.8 | — | (c) </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>I&M</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Michigan - earns a return</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td>1 year</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>6.4</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>6.4</td><td></td><td></td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>74.0</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>NOLC Costs - Indiana (b)</td><td></td><td>26.7</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>6.3</td><td></td><td></td><td>29.7</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>1.6</td><td></td><td></td><td>3.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>108.6</td><td></td><td></td><td>33.0</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>115.0</td><td></td><td></td><td>33.2</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>98.0</td><td></td><td></td><td>122.5</td><td></td><td></td><td>4 years</td></tr><tr><td>Rockport Plant Dry Sorbent Injection System and Selective Catalytic Reduction</td><td></td><td>37.3</td><td></td><td></td><td>46.9</td><td></td><td></td><td>4 years</td></tr><tr><td>Cook Plant Uprate Project</td><td></td><td>20.5</td><td></td><td></td><td>22.9</td><td></td><td></td><td>9 years</td></tr><tr><td>Deferred Cook Plant Life Cycle Management Project Costs - Michigan, FERC</td><td></td><td>10.1</td><td></td><td></td><td>11.1</td><td></td><td></td><td>10 years</td></tr><tr><td>Cook Plant Turbine - Indiana</td><td></td><td>7.8</td><td></td><td></td><td>8.4</td><td></td><td></td><td>14 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>21.1</td><td></td><td></td><td>17.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>194.8</td><td></td><td></td><td>229.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net</td><td></td><td>108.8</td><td></td><td></td><td>—</td><td></td><td></td><td>(c)</td></tr><tr><td>Cook Plant Nuclear Refueling Outage Levelization</td><td></td><td>43.0</td><td></td><td></td><td>55.7</td><td></td><td></td><td>3 years</td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>20.2</td><td></td><td></td><td>3.4</td><td></td><td></td><td>4 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>14.6</td><td></td><td></td><td>25.4</td><td></td><td></td><td>12 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Indiana Excess SO 2 Allowance Inventory - Indiana</td><td></td><td>11.9</td><td></td><td></td><td>14.8</td><td></td><td></td><td>4 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>10.9</td><td></td><td></td><td>11.8</td><td></td><td></td><td>24 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>7.3</td><td></td><td></td><td>7.0</td><td></td><td></td><td>3 years</td></tr><tr><td>Environmental Cost Rider - Indiana</td><td></td><td>1.4</td><td></td><td></td><td>8.1</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>20.2</td><td></td><td></td><td>17.6</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>238.3</td><td></td><td></td><td>143.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>433.1</td><td></td><td></td><td>373.1</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>548.1</td><td></td><td></td><td>$</td><td>406.3</td><td></td><td></td><td></td></tr></table>
|
table
|
43.0
|
monetaryItemType
|
table: <entity> 43.0 </entity> <entity type> monetaryItemType </entity type> <context> Cook Plant Nuclear Refueling Outage Levelization | 43.0 | 55.7 | 3 years </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>I&M</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Michigan - earns a return</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td>1 year</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>6.4</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>6.4</td><td></td><td></td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>74.0</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>NOLC Costs - Indiana (b)</td><td></td><td>26.7</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>6.3</td><td></td><td></td><td>29.7</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>1.6</td><td></td><td></td><td>3.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>108.6</td><td></td><td></td><td>33.0</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>115.0</td><td></td><td></td><td>33.2</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>98.0</td><td></td><td></td><td>122.5</td><td></td><td></td><td>4 years</td></tr><tr><td>Rockport Plant Dry Sorbent Injection System and Selective Catalytic Reduction</td><td></td><td>37.3</td><td></td><td></td><td>46.9</td><td></td><td></td><td>4 years</td></tr><tr><td>Cook Plant Uprate Project</td><td></td><td>20.5</td><td></td><td></td><td>22.9</td><td></td><td></td><td>9 years</td></tr><tr><td>Deferred Cook Plant Life Cycle Management Project Costs - Michigan, FERC</td><td></td><td>10.1</td><td></td><td></td><td>11.1</td><td></td><td></td><td>10 years</td></tr><tr><td>Cook Plant Turbine - Indiana</td><td></td><td>7.8</td><td></td><td></td><td>8.4</td><td></td><td></td><td>14 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>21.1</td><td></td><td></td><td>17.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>194.8</td><td></td><td></td><td>229.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net</td><td></td><td>108.8</td><td></td><td></td><td>—</td><td></td><td></td><td>(c)</td></tr><tr><td>Cook Plant Nuclear Refueling Outage Levelization</td><td></td><td>43.0</td><td></td><td></td><td>55.7</td><td></td><td></td><td>3 years</td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>20.2</td><td></td><td></td><td>3.4</td><td></td><td></td><td>4 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>14.6</td><td></td><td></td><td>25.4</td><td></td><td></td><td>12 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Indiana Excess SO 2 Allowance Inventory - Indiana</td><td></td><td>11.9</td><td></td><td></td><td>14.8</td><td></td><td></td><td>4 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>10.9</td><td></td><td></td><td>11.8</td><td></td><td></td><td>24 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>7.3</td><td></td><td></td><td>7.0</td><td></td><td></td><td>3 years</td></tr><tr><td>Environmental Cost Rider - Indiana</td><td></td><td>1.4</td><td></td><td></td><td>8.1</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>20.2</td><td></td><td></td><td>17.6</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>238.3</td><td></td><td></td><td>143.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>433.1</td><td></td><td></td><td>373.1</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>548.1</td><td></td><td></td><td>$</td><td>406.3</td><td></td><td></td><td></td></tr></table>
|
table
|
55.7
|
monetaryItemType
|
table: <entity> 55.7 </entity> <entity type> monetaryItemType </entity type> <context> Cook Plant Nuclear Refueling Outage Levelization | 43.0 | 55.7 | 3 years </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>I&M</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Michigan - earns a return</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td>1 year</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>6.4</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>6.4</td><td></td><td></td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>74.0</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>NOLC Costs - Indiana (b)</td><td></td><td>26.7</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>6.3</td><td></td><td></td><td>29.7</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>1.6</td><td></td><td></td><td>3.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>108.6</td><td></td><td></td><td>33.0</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>115.0</td><td></td><td></td><td>33.2</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>98.0</td><td></td><td></td><td>122.5</td><td></td><td></td><td>4 years</td></tr><tr><td>Rockport Plant Dry Sorbent Injection System and Selective Catalytic Reduction</td><td></td><td>37.3</td><td></td><td></td><td>46.9</td><td></td><td></td><td>4 years</td></tr><tr><td>Cook Plant Uprate Project</td><td></td><td>20.5</td><td></td><td></td><td>22.9</td><td></td><td></td><td>9 years</td></tr><tr><td>Deferred Cook Plant Life Cycle Management Project Costs - Michigan, FERC</td><td></td><td>10.1</td><td></td><td></td><td>11.1</td><td></td><td></td><td>10 years</td></tr><tr><td>Cook Plant Turbine - Indiana</td><td></td><td>7.8</td><td></td><td></td><td>8.4</td><td></td><td></td><td>14 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>21.1</td><td></td><td></td><td>17.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>194.8</td><td></td><td></td><td>229.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net</td><td></td><td>108.8</td><td></td><td></td><td>—</td><td></td><td></td><td>(c)</td></tr><tr><td>Cook Plant Nuclear Refueling Outage Levelization</td><td></td><td>43.0</td><td></td><td></td><td>55.7</td><td></td><td></td><td>3 years</td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>20.2</td><td></td><td></td><td>3.4</td><td></td><td></td><td>4 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>14.6</td><td></td><td></td><td>25.4</td><td></td><td></td><td>12 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Indiana Excess SO 2 Allowance Inventory - Indiana</td><td></td><td>11.9</td><td></td><td></td><td>14.8</td><td></td><td></td><td>4 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>10.9</td><td></td><td></td><td>11.8</td><td></td><td></td><td>24 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>7.3</td><td></td><td></td><td>7.0</td><td></td><td></td><td>3 years</td></tr><tr><td>Environmental Cost Rider - Indiana</td><td></td><td>1.4</td><td></td><td></td><td>8.1</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>20.2</td><td></td><td></td><td>17.6</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>238.3</td><td></td><td></td><td>143.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>433.1</td><td></td><td></td><td>373.1</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>548.1</td><td></td><td></td><td>$</td><td>406.3</td><td></td><td></td><td></td></tr></table>
|
table
|
20.2
|
monetaryItemType
|
table: <entity> 20.2 </entity> <entity type> monetaryItemType </entity type> <context> Storm-Related Costs - Indiana | 20.2 | 3.4 | 4 years </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>I&M</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Michigan - earns a return</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td>1 year</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>6.4</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>6.4</td><td></td><td></td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>74.0</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>NOLC Costs - Indiana (b)</td><td></td><td>26.7</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>6.3</td><td></td><td></td><td>29.7</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>1.6</td><td></td><td></td><td>3.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>108.6</td><td></td><td></td><td>33.0</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>115.0</td><td></td><td></td><td>33.2</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>98.0</td><td></td><td></td><td>122.5</td><td></td><td></td><td>4 years</td></tr><tr><td>Rockport Plant Dry Sorbent Injection System and Selective Catalytic Reduction</td><td></td><td>37.3</td><td></td><td></td><td>46.9</td><td></td><td></td><td>4 years</td></tr><tr><td>Cook Plant Uprate Project</td><td></td><td>20.5</td><td></td><td></td><td>22.9</td><td></td><td></td><td>9 years</td></tr><tr><td>Deferred Cook Plant Life Cycle Management Project Costs - Michigan, FERC</td><td></td><td>10.1</td><td></td><td></td><td>11.1</td><td></td><td></td><td>10 years</td></tr><tr><td>Cook Plant Turbine - Indiana</td><td></td><td>7.8</td><td></td><td></td><td>8.4</td><td></td><td></td><td>14 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>21.1</td><td></td><td></td><td>17.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>194.8</td><td></td><td></td><td>229.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net</td><td></td><td>108.8</td><td></td><td></td><td>—</td><td></td><td></td><td>(c)</td></tr><tr><td>Cook Plant Nuclear Refueling Outage Levelization</td><td></td><td>43.0</td><td></td><td></td><td>55.7</td><td></td><td></td><td>3 years</td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>20.2</td><td></td><td></td><td>3.4</td><td></td><td></td><td>4 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>14.6</td><td></td><td></td><td>25.4</td><td></td><td></td><td>12 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Indiana Excess SO 2 Allowance Inventory - Indiana</td><td></td><td>11.9</td><td></td><td></td><td>14.8</td><td></td><td></td><td>4 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>10.9</td><td></td><td></td><td>11.8</td><td></td><td></td><td>24 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>7.3</td><td></td><td></td><td>7.0</td><td></td><td></td><td>3 years</td></tr><tr><td>Environmental Cost Rider - Indiana</td><td></td><td>1.4</td><td></td><td></td><td>8.1</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>20.2</td><td></td><td></td><td>17.6</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>238.3</td><td></td><td></td><td>143.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>433.1</td><td></td><td></td><td>373.1</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>548.1</td><td></td><td></td><td>$</td><td>406.3</td><td></td><td></td><td></td></tr></table>
|
table
|
3.4
|
monetaryItemType
|
table: <entity> 3.4 </entity> <entity type> monetaryItemType </entity type> <context> Storm-Related Costs - Indiana | 20.2 | 3.4 | 4 years </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>I&M</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Michigan - earns a return</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td>1 year</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>6.4</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>6.4</td><td></td><td></td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>74.0</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>NOLC Costs - Indiana (b)</td><td></td><td>26.7</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>6.3</td><td></td><td></td><td>29.7</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>1.6</td><td></td><td></td><td>3.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>108.6</td><td></td><td></td><td>33.0</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>115.0</td><td></td><td></td><td>33.2</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>98.0</td><td></td><td></td><td>122.5</td><td></td><td></td><td>4 years</td></tr><tr><td>Rockport Plant Dry Sorbent Injection System and Selective Catalytic Reduction</td><td></td><td>37.3</td><td></td><td></td><td>46.9</td><td></td><td></td><td>4 years</td></tr><tr><td>Cook Plant Uprate Project</td><td></td><td>20.5</td><td></td><td></td><td>22.9</td><td></td><td></td><td>9 years</td></tr><tr><td>Deferred Cook Plant Life Cycle Management Project Costs - Michigan, FERC</td><td></td><td>10.1</td><td></td><td></td><td>11.1</td><td></td><td></td><td>10 years</td></tr><tr><td>Cook Plant Turbine - Indiana</td><td></td><td>7.8</td><td></td><td></td><td>8.4</td><td></td><td></td><td>14 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>21.1</td><td></td><td></td><td>17.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>194.8</td><td></td><td></td><td>229.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net</td><td></td><td>108.8</td><td></td><td></td><td>—</td><td></td><td></td><td>(c)</td></tr><tr><td>Cook Plant Nuclear Refueling Outage Levelization</td><td></td><td>43.0</td><td></td><td></td><td>55.7</td><td></td><td></td><td>3 years</td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>20.2</td><td></td><td></td><td>3.4</td><td></td><td></td><td>4 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>14.6</td><td></td><td></td><td>25.4</td><td></td><td></td><td>12 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Indiana Excess SO 2 Allowance Inventory - Indiana</td><td></td><td>11.9</td><td></td><td></td><td>14.8</td><td></td><td></td><td>4 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>10.9</td><td></td><td></td><td>11.8</td><td></td><td></td><td>24 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>7.3</td><td></td><td></td><td>7.0</td><td></td><td></td><td>3 years</td></tr><tr><td>Environmental Cost Rider - Indiana</td><td></td><td>1.4</td><td></td><td></td><td>8.1</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>20.2</td><td></td><td></td><td>17.6</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>238.3</td><td></td><td></td><td>143.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>433.1</td><td></td><td></td><td>373.1</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>548.1</td><td></td><td></td><td>$</td><td>406.3</td><td></td><td></td><td></td></tr></table>
|
table
|
14.6
|
monetaryItemType
|
table: <entity> 14.6 </entity> <entity type> monetaryItemType </entity type> <context> Pension and OPEB Funded Status | 14.6 | 25.4 | 12 years </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>I&M</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Recovery Period</td></tr><tr><td>Regulatory Assets:</td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td></td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td>Current Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Under-recovered Fuel Costs, Michigan - earns a return</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td>1 year</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Current Regulatory Assets</td><td></td><td>$</td><td>10.6</td><td></td><td></td><td>$</td><td>14.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent Regulatory Assets</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets pending final regulatory approval:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>6.4</td><td></td><td></td><td>$</td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>6.4</td><td></td><td></td><td>0.2</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Asset Retirement Obligation Costs (a)</td><td></td><td>74.0</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>NOLC Costs - Indiana (b)</td><td></td><td>26.7</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>6.3</td><td></td><td></td><td>29.7</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>1.6</td><td></td><td></td><td>3.3</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>108.6</td><td></td><td></td><td>33.0</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>115.0</td><td></td><td></td><td>33.2</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory assets approved for recovery:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Plant Retirement Costs - Unrecovered Plant</td><td></td><td>98.0</td><td></td><td></td><td>122.5</td><td></td><td></td><td>4 years</td></tr><tr><td>Rockport Plant Dry Sorbent Injection System and Selective Catalytic Reduction</td><td></td><td>37.3</td><td></td><td></td><td>46.9</td><td></td><td></td><td>4 years</td></tr><tr><td>Cook Plant Uprate Project</td><td></td><td>20.5</td><td></td><td></td><td>22.9</td><td></td><td></td><td>9 years</td></tr><tr><td>Deferred Cook Plant Life Cycle Management Project Costs - Michigan, FERC</td><td></td><td>10.1</td><td></td><td></td><td>11.1</td><td></td><td></td><td>10 years</td></tr><tr><td>Cook Plant Turbine - Indiana</td><td></td><td>7.8</td><td></td><td></td><td>8.4</td><td></td><td></td><td>14 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>21.1</td><td></td><td></td><td>17.5</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>194.8</td><td></td><td></td><td>229.3</td><td></td><td></td><td></td></tr><tr><td>Regulatory Assets Currently Not Earning a Return</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Income Taxes, Net</td><td></td><td>108.8</td><td></td><td></td><td>—</td><td></td><td></td><td>(c)</td></tr><tr><td>Cook Plant Nuclear Refueling Outage Levelization</td><td></td><td>43.0</td><td></td><td></td><td>55.7</td><td></td><td></td><td>3 years</td></tr><tr><td>Storm-Related Costs - Indiana</td><td></td><td>20.2</td><td></td><td></td><td>3.4</td><td></td><td></td><td>4 years</td></tr><tr><td>Pension and OPEB Funded Status</td><td></td><td>14.6</td><td></td><td></td><td>25.4</td><td></td><td></td><td>12 years</td></tr><tr><td>Excess SO 2 Allowance Inventory - Indiana Excess SO 2 Allowance Inventory - Indiana</td><td></td><td>11.9</td><td></td><td></td><td>14.8</td><td></td><td></td><td>4 years</td></tr><tr><td>Unamortized Loss on Reacquired Debt</td><td></td><td>10.9</td><td></td><td></td><td>11.8</td><td></td><td></td><td>24 years</td></tr><tr><td>Postemployment Benefits</td><td></td><td>7.3</td><td></td><td></td><td>7.0</td><td></td><td></td><td>3 years</td></tr><tr><td>Environmental Cost Rider - Indiana</td><td></td><td>1.4</td><td></td><td></td><td>8.1</td><td></td><td></td><td>2 years</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Assets Approved for Recovery</td><td></td><td>20.2</td><td></td><td></td><td>17.6</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>238.3</td><td></td><td></td><td>143.8</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Approved for Recovery</td><td></td><td>433.1</td><td></td><td></td><td>373.1</td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>548.1</td><td></td><td></td><td>$</td><td>406.3</td><td></td><td></td><td></td></tr></table>
|
table
|
25.4
|
monetaryItemType
|
table: <entity> 25.4 </entity> <entity type> monetaryItemType </entity type> <context> Pension and OPEB Funded Status | 14.6 | 25.4 | 12 years </context>
|
us-gaap:RegulatoryAssetsNoncurrent
|
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