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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>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
|
11.9
|
monetaryItemType
|
table: <entity> 11.9 </entity> <entity type> monetaryItemType </entity type> <context> Excess SO 2 Allowance Inventory - Indiana Excess SO 2 Allowance Inventory - Indiana | 11.9 | 14.8 | 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
|
14.8
|
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>
|
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
|
10.9
|
monetaryItemType
|
table: <entity> 10.9 </entity> <entity type> monetaryItemType </entity type> <context> Unamortized Loss on Reacquired Debt | 10.9 | 11.8 | 24 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
|
11.8
|
monetaryItemType
|
table: <entity> 11.8 </entity> <entity type> monetaryItemType </entity type> <context> Unamortized Loss on Reacquired Debt | 10.9 | 11.8 | 24 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
|
7.3
|
monetaryItemType
|
table: <entity> 7.3 </entity> <entity type> monetaryItemType </entity type> <context> Postemployment Benefits | 7.3 | 7.0 | 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
|
7.0
|
monetaryItemType
|
table: <entity> 7.0 </entity> <entity type> monetaryItemType </entity type> <context> Postemployment Benefits | 7.3 | 7.0 | 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
|
1.4
|
monetaryItemType
|
table: <entity> 1.4 </entity> <entity type> monetaryItemType </entity type> <context> Environmental Cost Rider - Indiana | 1.4 | 8.1 | 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>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
|
8.1
|
monetaryItemType
|
table: <entity> 8.1 </entity> <entity type> monetaryItemType </entity type> <context> Environmental Cost Rider - Indiana | 1.4 | 8.1 | 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>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
|
17.6
|
monetaryItemType
|
table: <entity> 17.6 </entity> <entity type> monetaryItemType </entity type> <context> Other Regulatory Assets Approved for Recovery | 20.2 | 17.6 | 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
|
238.3
|
monetaryItemType
|
table: <entity> 238.3 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Assets Currently Not Earning a Return | 238.3 | 143.8 </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
|
143.8
|
monetaryItemType
|
table: <entity> 143.8 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Assets Currently Not Earning a Return | 238.3 | 143.8 </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
|
433.1
|
monetaryItemType
|
table: <entity> 433.1 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Assets Approved for Recovery | 433.1 | 373.1 </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
|
373.1
|
monetaryItemType
|
table: <entity> 373.1 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Assets Approved for Recovery | 433.1 | 373.1 </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
|
548.1
|
monetaryItemType
|
table: <entity> 548.1 </entity> <entity type> monetaryItemType </entity type> <context> Total Noncurrent Regulatory Assets | $ | 548.1 | $ | 406.3 </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
|
406.3
|
monetaryItemType
|
table: <entity> 406.3 </entity> <entity type> monetaryItemType </entity type> <context> Total Noncurrent Regulatory Assets | $ | 548.1 | $ | 406.3 </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 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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, Indiana - does not pay a return</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</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>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>Income Taxes, Net (a) (b)</td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>( 103.0 )</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>—</td><td></td><td></td><td>( 103.0 )</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>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>28.9</td><td></td><td></td><td>22.8</td><td></td><td></td><td></td></tr><tr><td>Cook Plant PTC Deferral - Michigan</td><td></td><td>14.5</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>43.4</td><td></td><td></td><td>22.8</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 Liabilities Pending Final Regulatory Determination</td><td></td><td>43.4</td><td></td><td></td><td>( 80.2 )</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 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>174.2</td><td></td><td></td><td>168.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Renewable Energy Surcharge - Michigan</td><td></td><td>24.3</td><td></td><td></td><td>26.6</td><td></td><td></td><td>2 years</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>—</td><td></td><td></td><td>116.8</td><td></td><td></td><td>(d)</td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>0.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>198.6</td><td></td><td></td><td>311.6</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>Excess Nuclear Decommissioning Funding</td><td></td><td>2,137.3</td><td></td><td></td><td>1,721.9</td><td></td><td></td><td>(e)</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Spent Nuclear Fuel</td><td></td><td>50.4</td><td></td><td></td><td>47.6</td><td></td><td></td><td>(e)</td></tr><tr><td>Demand Side Management - Indiana</td><td></td><td>33.0</td><td></td><td></td><td>16.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>13.8</td><td></td><td></td><td>15.8</td><td></td><td></td><td>26 years</td></tr><tr><td>PJM Costs and Off-system Sales Margin Sharing - Indiana</td><td></td><td>2.0</td><td></td><td></td><td>14.1</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>2.3</td><td></td><td></td><td>4.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>2,238.8</td><td></td><td></td><td>1,820.9</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 Approved for Payment</td><td></td><td>2,437.4</td><td></td><td></td><td>2,132.5</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>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>2,480.8</td><td></td><td></td><td>$</td><td>2,052.3</td><td></td><td></td><td></td></tr></table>
|
table
|
10.3
|
monetaryItemType
|
table: <entity> 10.3 </entity> <entity type> monetaryItemType </entity type> <context> Over-recovered Fuel Costs, Indiana - does not pay a return | $ | 10.3 | $ | 23.2 | 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>I&M</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, Indiana - does not pay a return</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</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>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>Income Taxes, Net (a) (b)</td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>( 103.0 )</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>—</td><td></td><td></td><td>( 103.0 )</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>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>28.9</td><td></td><td></td><td>22.8</td><td></td><td></td><td></td></tr><tr><td>Cook Plant PTC Deferral - Michigan</td><td></td><td>14.5</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>43.4</td><td></td><td></td><td>22.8</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 Liabilities Pending Final Regulatory Determination</td><td></td><td>43.4</td><td></td><td></td><td>( 80.2 )</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 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>174.2</td><td></td><td></td><td>168.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Renewable Energy Surcharge - Michigan</td><td></td><td>24.3</td><td></td><td></td><td>26.6</td><td></td><td></td><td>2 years</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>—</td><td></td><td></td><td>116.8</td><td></td><td></td><td>(d)</td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>0.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>198.6</td><td></td><td></td><td>311.6</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>Excess Nuclear Decommissioning Funding</td><td></td><td>2,137.3</td><td></td><td></td><td>1,721.9</td><td></td><td></td><td>(e)</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Spent Nuclear Fuel</td><td></td><td>50.4</td><td></td><td></td><td>47.6</td><td></td><td></td><td>(e)</td></tr><tr><td>Demand Side Management - Indiana</td><td></td><td>33.0</td><td></td><td></td><td>16.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>13.8</td><td></td><td></td><td>15.8</td><td></td><td></td><td>26 years</td></tr><tr><td>PJM Costs and Off-system Sales Margin Sharing - Indiana</td><td></td><td>2.0</td><td></td><td></td><td>14.1</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>2.3</td><td></td><td></td><td>4.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>2,238.8</td><td></td><td></td><td>1,820.9</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 Approved for Payment</td><td></td><td>2,437.4</td><td></td><td></td><td>2,132.5</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>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>2,480.8</td><td></td><td></td><td>$</td><td>2,052.3</td><td></td><td></td><td></td></tr></table>
|
table
|
23.2
|
monetaryItemType
|
table: <entity> 23.2 </entity> <entity type> monetaryItemType </entity type> <context> Over-recovered Fuel Costs, Indiana - does not pay a return | $ | 10.3 | $ | 23.2 | 1 year </context>
|
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>I&M</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, Indiana - does not pay a return</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</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>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>Income Taxes, Net (a) (b)</td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>( 103.0 )</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>—</td><td></td><td></td><td>( 103.0 )</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>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>28.9</td><td></td><td></td><td>22.8</td><td></td><td></td><td></td></tr><tr><td>Cook Plant PTC Deferral - Michigan</td><td></td><td>14.5</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>43.4</td><td></td><td></td><td>22.8</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 Liabilities Pending Final Regulatory Determination</td><td></td><td>43.4</td><td></td><td></td><td>( 80.2 )</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 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>174.2</td><td></td><td></td><td>168.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Renewable Energy Surcharge - Michigan</td><td></td><td>24.3</td><td></td><td></td><td>26.6</td><td></td><td></td><td>2 years</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>—</td><td></td><td></td><td>116.8</td><td></td><td></td><td>(d)</td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>0.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>198.6</td><td></td><td></td><td>311.6</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>Excess Nuclear Decommissioning Funding</td><td></td><td>2,137.3</td><td></td><td></td><td>1,721.9</td><td></td><td></td><td>(e)</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Spent Nuclear Fuel</td><td></td><td>50.4</td><td></td><td></td><td>47.6</td><td></td><td></td><td>(e)</td></tr><tr><td>Demand Side Management - Indiana</td><td></td><td>33.0</td><td></td><td></td><td>16.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>13.8</td><td></td><td></td><td>15.8</td><td></td><td></td><td>26 years</td></tr><tr><td>PJM Costs and Off-system Sales Margin Sharing - Indiana</td><td></td><td>2.0</td><td></td><td></td><td>14.1</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>2.3</td><td></td><td></td><td>4.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>2,238.8</td><td></td><td></td><td>1,820.9</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 Approved for Payment</td><td></td><td>2,437.4</td><td></td><td></td><td>2,132.5</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>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>2,480.8</td><td></td><td></td><td>$</td><td>2,052.3</td><td></td><td></td><td></td></tr></table>
|
table
|
—
|
monetaryItemType
|
table: <entity> — </entity> <entity type> monetaryItemType </entity type> <context> Income Taxes, Net (a) (b) | $ | — | $ | ( 103.0 ) </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>I&M</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, Indiana - does not pay a return</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</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>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>Income Taxes, Net (a) (b)</td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>( 103.0 )</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>—</td><td></td><td></td><td>( 103.0 )</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>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>28.9</td><td></td><td></td><td>22.8</td><td></td><td></td><td></td></tr><tr><td>Cook Plant PTC Deferral - Michigan</td><td></td><td>14.5</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>43.4</td><td></td><td></td><td>22.8</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 Liabilities Pending Final Regulatory Determination</td><td></td><td>43.4</td><td></td><td></td><td>( 80.2 )</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 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>174.2</td><td></td><td></td><td>168.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Renewable Energy Surcharge - Michigan</td><td></td><td>24.3</td><td></td><td></td><td>26.6</td><td></td><td></td><td>2 years</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>—</td><td></td><td></td><td>116.8</td><td></td><td></td><td>(d)</td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>0.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>198.6</td><td></td><td></td><td>311.6</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>Excess Nuclear Decommissioning Funding</td><td></td><td>2,137.3</td><td></td><td></td><td>1,721.9</td><td></td><td></td><td>(e)</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Spent Nuclear Fuel</td><td></td><td>50.4</td><td></td><td></td><td>47.6</td><td></td><td></td><td>(e)</td></tr><tr><td>Demand Side Management - Indiana</td><td></td><td>33.0</td><td></td><td></td><td>16.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>13.8</td><td></td><td></td><td>15.8</td><td></td><td></td><td>26 years</td></tr><tr><td>PJM Costs and Off-system Sales Margin Sharing - Indiana</td><td></td><td>2.0</td><td></td><td></td><td>14.1</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>2.3</td><td></td><td></td><td>4.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>2,238.8</td><td></td><td></td><td>1,820.9</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 Approved for Payment</td><td></td><td>2,437.4</td><td></td><td></td><td>2,132.5</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>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>2,480.8</td><td></td><td></td><td>$</td><td>2,052.3</td><td></td><td></td><td></td></tr></table>
|
table
|
103.0
|
monetaryItemType
|
table: <entity> 103.0 </entity> <entity type> monetaryItemType </entity type> <context> None </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>I&M</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, Indiana - does not pay a return</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</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>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>Income Taxes, Net (a) (b)</td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>( 103.0 )</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>—</td><td></td><td></td><td>( 103.0 )</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>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>28.9</td><td></td><td></td><td>22.8</td><td></td><td></td><td></td></tr><tr><td>Cook Plant PTC Deferral - Michigan</td><td></td><td>14.5</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>43.4</td><td></td><td></td><td>22.8</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 Liabilities Pending Final Regulatory Determination</td><td></td><td>43.4</td><td></td><td></td><td>( 80.2 )</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 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>174.2</td><td></td><td></td><td>168.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Renewable Energy Surcharge - Michigan</td><td></td><td>24.3</td><td></td><td></td><td>26.6</td><td></td><td></td><td>2 years</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>—</td><td></td><td></td><td>116.8</td><td></td><td></td><td>(d)</td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>0.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>198.6</td><td></td><td></td><td>311.6</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>Excess Nuclear Decommissioning Funding</td><td></td><td>2,137.3</td><td></td><td></td><td>1,721.9</td><td></td><td></td><td>(e)</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Spent Nuclear Fuel</td><td></td><td>50.4</td><td></td><td></td><td>47.6</td><td></td><td></td><td>(e)</td></tr><tr><td>Demand Side Management - Indiana</td><td></td><td>33.0</td><td></td><td></td><td>16.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>13.8</td><td></td><td></td><td>15.8</td><td></td><td></td><td>26 years</td></tr><tr><td>PJM Costs and Off-system Sales Margin Sharing - Indiana</td><td></td><td>2.0</td><td></td><td></td><td>14.1</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>2.3</td><td></td><td></td><td>4.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>2,238.8</td><td></td><td></td><td>1,820.9</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 Approved for Payment</td><td></td><td>2,437.4</td><td></td><td></td><td>2,132.5</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>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>2,480.8</td><td></td><td></td><td>$</td><td>2,052.3</td><td></td><td></td><td></td></tr></table>
|
table
|
28.9
|
monetaryItemType
|
table: <entity> 28.9 </entity> <entity type> monetaryItemType </entity type> <context> FERC 2021 Transmission Formula Rate Challenge Refunds | 28.9 | 22.8 </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>I&M</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, Indiana - does not pay a return</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</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>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>Income Taxes, Net (a) (b)</td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>( 103.0 )</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>—</td><td></td><td></td><td>( 103.0 )</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>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>28.9</td><td></td><td></td><td>22.8</td><td></td><td></td><td></td></tr><tr><td>Cook Plant PTC Deferral - Michigan</td><td></td><td>14.5</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>43.4</td><td></td><td></td><td>22.8</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 Liabilities Pending Final Regulatory Determination</td><td></td><td>43.4</td><td></td><td></td><td>( 80.2 )</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 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>174.2</td><td></td><td></td><td>168.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Renewable Energy Surcharge - Michigan</td><td></td><td>24.3</td><td></td><td></td><td>26.6</td><td></td><td></td><td>2 years</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>—</td><td></td><td></td><td>116.8</td><td></td><td></td><td>(d)</td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>0.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>198.6</td><td></td><td></td><td>311.6</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>Excess Nuclear Decommissioning Funding</td><td></td><td>2,137.3</td><td></td><td></td><td>1,721.9</td><td></td><td></td><td>(e)</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Spent Nuclear Fuel</td><td></td><td>50.4</td><td></td><td></td><td>47.6</td><td></td><td></td><td>(e)</td></tr><tr><td>Demand Side Management - Indiana</td><td></td><td>33.0</td><td></td><td></td><td>16.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>13.8</td><td></td><td></td><td>15.8</td><td></td><td></td><td>26 years</td></tr><tr><td>PJM Costs and Off-system Sales Margin Sharing - Indiana</td><td></td><td>2.0</td><td></td><td></td><td>14.1</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>2.3</td><td></td><td></td><td>4.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>2,238.8</td><td></td><td></td><td>1,820.9</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 Approved for Payment</td><td></td><td>2,437.4</td><td></td><td></td><td>2,132.5</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>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>2,480.8</td><td></td><td></td><td>$</td><td>2,052.3</td><td></td><td></td><td></td></tr></table>
|
table
|
22.8
|
monetaryItemType
|
table: <entity> 22.8 </entity> <entity type> monetaryItemType </entity type> <context> FERC 2021 Transmission Formula Rate Challenge Refunds | 28.9 | 22.8 </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>I&M</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, Indiana - does not pay a return</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</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>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>Income Taxes, Net (a) (b)</td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>( 103.0 )</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>—</td><td></td><td></td><td>( 103.0 )</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>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>28.9</td><td></td><td></td><td>22.8</td><td></td><td></td><td></td></tr><tr><td>Cook Plant PTC Deferral - Michigan</td><td></td><td>14.5</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>43.4</td><td></td><td></td><td>22.8</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 Liabilities Pending Final Regulatory Determination</td><td></td><td>43.4</td><td></td><td></td><td>( 80.2 )</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 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>174.2</td><td></td><td></td><td>168.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Renewable Energy Surcharge - Michigan</td><td></td><td>24.3</td><td></td><td></td><td>26.6</td><td></td><td></td><td>2 years</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>—</td><td></td><td></td><td>116.8</td><td></td><td></td><td>(d)</td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>0.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>198.6</td><td></td><td></td><td>311.6</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>Excess Nuclear Decommissioning Funding</td><td></td><td>2,137.3</td><td></td><td></td><td>1,721.9</td><td></td><td></td><td>(e)</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Spent Nuclear Fuel</td><td></td><td>50.4</td><td></td><td></td><td>47.6</td><td></td><td></td><td>(e)</td></tr><tr><td>Demand Side Management - Indiana</td><td></td><td>33.0</td><td></td><td></td><td>16.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>13.8</td><td></td><td></td><td>15.8</td><td></td><td></td><td>26 years</td></tr><tr><td>PJM Costs and Off-system Sales Margin Sharing - Indiana</td><td></td><td>2.0</td><td></td><td></td><td>14.1</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>2.3</td><td></td><td></td><td>4.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>2,238.8</td><td></td><td></td><td>1,820.9</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 Approved for Payment</td><td></td><td>2,437.4</td><td></td><td></td><td>2,132.5</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>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>2,480.8</td><td></td><td></td><td>$</td><td>2,052.3</td><td></td><td></td><td></td></tr></table>
|
table
|
14.5
|
monetaryItemType
|
table: <entity> 14.5 </entity> <entity type> monetaryItemType </entity type> <context> Cook Plant PTC Deferral - Michigan | 14.5 | — </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>I&M</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, Indiana - does not pay a return</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</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>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>Income Taxes, Net (a) (b)</td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>( 103.0 )</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>—</td><td></td><td></td><td>( 103.0 )</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>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>28.9</td><td></td><td></td><td>22.8</td><td></td><td></td><td></td></tr><tr><td>Cook Plant PTC Deferral - Michigan</td><td></td><td>14.5</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>43.4</td><td></td><td></td><td>22.8</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 Liabilities Pending Final Regulatory Determination</td><td></td><td>43.4</td><td></td><td></td><td>( 80.2 )</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 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>174.2</td><td></td><td></td><td>168.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Renewable Energy Surcharge - Michigan</td><td></td><td>24.3</td><td></td><td></td><td>26.6</td><td></td><td></td><td>2 years</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>—</td><td></td><td></td><td>116.8</td><td></td><td></td><td>(d)</td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>0.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>198.6</td><td></td><td></td><td>311.6</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>Excess Nuclear Decommissioning Funding</td><td></td><td>2,137.3</td><td></td><td></td><td>1,721.9</td><td></td><td></td><td>(e)</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Spent Nuclear Fuel</td><td></td><td>50.4</td><td></td><td></td><td>47.6</td><td></td><td></td><td>(e)</td></tr><tr><td>Demand Side Management - Indiana</td><td></td><td>33.0</td><td></td><td></td><td>16.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>13.8</td><td></td><td></td><td>15.8</td><td></td><td></td><td>26 years</td></tr><tr><td>PJM Costs and Off-system Sales Margin Sharing - Indiana</td><td></td><td>2.0</td><td></td><td></td><td>14.1</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>2.3</td><td></td><td></td><td>4.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>2,238.8</td><td></td><td></td><td>1,820.9</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 Approved for Payment</td><td></td><td>2,437.4</td><td></td><td></td><td>2,132.5</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>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>2,480.8</td><td></td><td></td><td>$</td><td>2,052.3</td><td></td><td></td><td></td></tr></table>
|
table
|
43.4
|
monetaryItemType
|
table: <entity> 43.4 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Liabilities Currently Not Paying a Return | 43.4 | 22.8 </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>I&M</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, Indiana - does not pay a return</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</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>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>Income Taxes, Net (a) (b)</td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>( 103.0 )</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>—</td><td></td><td></td><td>( 103.0 )</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>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>28.9</td><td></td><td></td><td>22.8</td><td></td><td></td><td></td></tr><tr><td>Cook Plant PTC Deferral - Michigan</td><td></td><td>14.5</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>43.4</td><td></td><td></td><td>22.8</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 Liabilities Pending Final Regulatory Determination</td><td></td><td>43.4</td><td></td><td></td><td>( 80.2 )</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 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>174.2</td><td></td><td></td><td>168.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Renewable Energy Surcharge - Michigan</td><td></td><td>24.3</td><td></td><td></td><td>26.6</td><td></td><td></td><td>2 years</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>—</td><td></td><td></td><td>116.8</td><td></td><td></td><td>(d)</td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>0.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>198.6</td><td></td><td></td><td>311.6</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>Excess Nuclear Decommissioning Funding</td><td></td><td>2,137.3</td><td></td><td></td><td>1,721.9</td><td></td><td></td><td>(e)</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Spent Nuclear Fuel</td><td></td><td>50.4</td><td></td><td></td><td>47.6</td><td></td><td></td><td>(e)</td></tr><tr><td>Demand Side Management - Indiana</td><td></td><td>33.0</td><td></td><td></td><td>16.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>13.8</td><td></td><td></td><td>15.8</td><td></td><td></td><td>26 years</td></tr><tr><td>PJM Costs and Off-system Sales Margin Sharing - Indiana</td><td></td><td>2.0</td><td></td><td></td><td>14.1</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>2.3</td><td></td><td></td><td>4.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>2,238.8</td><td></td><td></td><td>1,820.9</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 Approved for Payment</td><td></td><td>2,437.4</td><td></td><td></td><td>2,132.5</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>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>2,480.8</td><td></td><td></td><td>$</td><td>2,052.3</td><td></td><td></td><td></td></tr></table>
|
table
|
80.2
|
monetaryItemType
|
table: <entity> 80.2 </entity> <entity type> monetaryItemType </entity type> <context> None </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>I&M</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, Indiana - does not pay a return</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</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>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>Income Taxes, Net (a) (b)</td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>( 103.0 )</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>—</td><td></td><td></td><td>( 103.0 )</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>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>28.9</td><td></td><td></td><td>22.8</td><td></td><td></td><td></td></tr><tr><td>Cook Plant PTC Deferral - Michigan</td><td></td><td>14.5</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>43.4</td><td></td><td></td><td>22.8</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 Liabilities Pending Final Regulatory Determination</td><td></td><td>43.4</td><td></td><td></td><td>( 80.2 )</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 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>174.2</td><td></td><td></td><td>168.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Renewable Energy Surcharge - Michigan</td><td></td><td>24.3</td><td></td><td></td><td>26.6</td><td></td><td></td><td>2 years</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>—</td><td></td><td></td><td>116.8</td><td></td><td></td><td>(d)</td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>0.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>198.6</td><td></td><td></td><td>311.6</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>Excess Nuclear Decommissioning Funding</td><td></td><td>2,137.3</td><td></td><td></td><td>1,721.9</td><td></td><td></td><td>(e)</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Spent Nuclear Fuel</td><td></td><td>50.4</td><td></td><td></td><td>47.6</td><td></td><td></td><td>(e)</td></tr><tr><td>Demand Side Management - Indiana</td><td></td><td>33.0</td><td></td><td></td><td>16.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>13.8</td><td></td><td></td><td>15.8</td><td></td><td></td><td>26 years</td></tr><tr><td>PJM Costs and Off-system Sales Margin Sharing - Indiana</td><td></td><td>2.0</td><td></td><td></td><td>14.1</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>2.3</td><td></td><td></td><td>4.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>2,238.8</td><td></td><td></td><td>1,820.9</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 Approved for Payment</td><td></td><td>2,437.4</td><td></td><td></td><td>2,132.5</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>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>2,480.8</td><td></td><td></td><td>$</td><td>2,052.3</td><td></td><td></td><td></td></tr></table>
|
table
|
174.2
|
monetaryItemType
|
table: <entity> 174.2 </entity> <entity type> monetaryItemType </entity type> <context> Asset Removal Costs | 174.2 | 168.1 | (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>I&M</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, Indiana - does not pay a return</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</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>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>Income Taxes, Net (a) (b)</td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>( 103.0 )</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>—</td><td></td><td></td><td>( 103.0 )</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>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>28.9</td><td></td><td></td><td>22.8</td><td></td><td></td><td></td></tr><tr><td>Cook Plant PTC Deferral - Michigan</td><td></td><td>14.5</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>43.4</td><td></td><td></td><td>22.8</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 Liabilities Pending Final Regulatory Determination</td><td></td><td>43.4</td><td></td><td></td><td>( 80.2 )</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 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>174.2</td><td></td><td></td><td>168.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Renewable Energy Surcharge - Michigan</td><td></td><td>24.3</td><td></td><td></td><td>26.6</td><td></td><td></td><td>2 years</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>—</td><td></td><td></td><td>116.8</td><td></td><td></td><td>(d)</td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>0.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>198.6</td><td></td><td></td><td>311.6</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>Excess Nuclear Decommissioning Funding</td><td></td><td>2,137.3</td><td></td><td></td><td>1,721.9</td><td></td><td></td><td>(e)</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Spent Nuclear Fuel</td><td></td><td>50.4</td><td></td><td></td><td>47.6</td><td></td><td></td><td>(e)</td></tr><tr><td>Demand Side Management - Indiana</td><td></td><td>33.0</td><td></td><td></td><td>16.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>13.8</td><td></td><td></td><td>15.8</td><td></td><td></td><td>26 years</td></tr><tr><td>PJM Costs and Off-system Sales Margin Sharing - Indiana</td><td></td><td>2.0</td><td></td><td></td><td>14.1</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>2.3</td><td></td><td></td><td>4.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>2,238.8</td><td></td><td></td><td>1,820.9</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 Approved for Payment</td><td></td><td>2,437.4</td><td></td><td></td><td>2,132.5</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>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>2,480.8</td><td></td><td></td><td>$</td><td>2,052.3</td><td></td><td></td><td></td></tr></table>
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table
|
168.1
|
monetaryItemType
|
table: <entity> 168.1 </entity> <entity type> monetaryItemType </entity type> <context> Asset Removal Costs | 174.2 | 168.1 | (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>I&M</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, Indiana - does not pay a return</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</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>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>Income Taxes, Net (a) (b)</td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>( 103.0 )</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>—</td><td></td><td></td><td>( 103.0 )</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>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>28.9</td><td></td><td></td><td>22.8</td><td></td><td></td><td></td></tr><tr><td>Cook Plant PTC Deferral - Michigan</td><td></td><td>14.5</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>43.4</td><td></td><td></td><td>22.8</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 Liabilities Pending Final Regulatory Determination</td><td></td><td>43.4</td><td></td><td></td><td>( 80.2 )</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 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>174.2</td><td></td><td></td><td>168.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Renewable Energy Surcharge - Michigan</td><td></td><td>24.3</td><td></td><td></td><td>26.6</td><td></td><td></td><td>2 years</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>—</td><td></td><td></td><td>116.8</td><td></td><td></td><td>(d)</td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>0.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>198.6</td><td></td><td></td><td>311.6</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>Excess Nuclear Decommissioning Funding</td><td></td><td>2,137.3</td><td></td><td></td><td>1,721.9</td><td></td><td></td><td>(e)</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Spent Nuclear Fuel</td><td></td><td>50.4</td><td></td><td></td><td>47.6</td><td></td><td></td><td>(e)</td></tr><tr><td>Demand Side Management - Indiana</td><td></td><td>33.0</td><td></td><td></td><td>16.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>13.8</td><td></td><td></td><td>15.8</td><td></td><td></td><td>26 years</td></tr><tr><td>PJM Costs and Off-system Sales Margin Sharing - Indiana</td><td></td><td>2.0</td><td></td><td></td><td>14.1</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>2.3</td><td></td><td></td><td>4.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>2,238.8</td><td></td><td></td><td>1,820.9</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 Approved for Payment</td><td></td><td>2,437.4</td><td></td><td></td><td>2,132.5</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>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>2,480.8</td><td></td><td></td><td>$</td><td>2,052.3</td><td></td><td></td><td></td></tr></table>
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table
|
24.3
|
monetaryItemType
|
table: <entity> 24.3 </entity> <entity type> monetaryItemType </entity type> <context> Renewable Energy Surcharge - Michigan | 24.3 | 26.6 | 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>I&M</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, Indiana - does not pay a return</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</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>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>Income Taxes, Net (a) (b)</td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>( 103.0 )</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>—</td><td></td><td></td><td>( 103.0 )</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>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>28.9</td><td></td><td></td><td>22.8</td><td></td><td></td><td></td></tr><tr><td>Cook Plant PTC Deferral - Michigan</td><td></td><td>14.5</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>43.4</td><td></td><td></td><td>22.8</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 Liabilities Pending Final Regulatory Determination</td><td></td><td>43.4</td><td></td><td></td><td>( 80.2 )</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 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>174.2</td><td></td><td></td><td>168.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Renewable Energy Surcharge - Michigan</td><td></td><td>24.3</td><td></td><td></td><td>26.6</td><td></td><td></td><td>2 years</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>—</td><td></td><td></td><td>116.8</td><td></td><td></td><td>(d)</td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>0.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>198.6</td><td></td><td></td><td>311.6</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>Excess Nuclear Decommissioning Funding</td><td></td><td>2,137.3</td><td></td><td></td><td>1,721.9</td><td></td><td></td><td>(e)</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Spent Nuclear Fuel</td><td></td><td>50.4</td><td></td><td></td><td>47.6</td><td></td><td></td><td>(e)</td></tr><tr><td>Demand Side Management - Indiana</td><td></td><td>33.0</td><td></td><td></td><td>16.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>13.8</td><td></td><td></td><td>15.8</td><td></td><td></td><td>26 years</td></tr><tr><td>PJM Costs and Off-system Sales Margin Sharing - Indiana</td><td></td><td>2.0</td><td></td><td></td><td>14.1</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>2.3</td><td></td><td></td><td>4.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>2,238.8</td><td></td><td></td><td>1,820.9</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 Approved for Payment</td><td></td><td>2,437.4</td><td></td><td></td><td>2,132.5</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>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>2,480.8</td><td></td><td></td><td>$</td><td>2,052.3</td><td></td><td></td><td></td></tr></table>
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table
|
26.6
|
monetaryItemType
|
table: <entity> 26.6 </entity> <entity type> monetaryItemType </entity type> <context> Renewable Energy Surcharge - Michigan | 24.3 | 26.6 | 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>I&M</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, Indiana - does not pay a return</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</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>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>Income Taxes, Net (a) (b)</td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>( 103.0 )</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>—</td><td></td><td></td><td>( 103.0 )</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>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>28.9</td><td></td><td></td><td>22.8</td><td></td><td></td><td></td></tr><tr><td>Cook Plant PTC Deferral - Michigan</td><td></td><td>14.5</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>43.4</td><td></td><td></td><td>22.8</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 Liabilities Pending Final Regulatory Determination</td><td></td><td>43.4</td><td></td><td></td><td>( 80.2 )</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 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>174.2</td><td></td><td></td><td>168.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Renewable Energy Surcharge - Michigan</td><td></td><td>24.3</td><td></td><td></td><td>26.6</td><td></td><td></td><td>2 years</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>—</td><td></td><td></td><td>116.8</td><td></td><td></td><td>(d)</td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>0.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>198.6</td><td></td><td></td><td>311.6</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>Excess Nuclear Decommissioning Funding</td><td></td><td>2,137.3</td><td></td><td></td><td>1,721.9</td><td></td><td></td><td>(e)</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Spent Nuclear Fuel</td><td></td><td>50.4</td><td></td><td></td><td>47.6</td><td></td><td></td><td>(e)</td></tr><tr><td>Demand Side Management - Indiana</td><td></td><td>33.0</td><td></td><td></td><td>16.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>13.8</td><td></td><td></td><td>15.8</td><td></td><td></td><td>26 years</td></tr><tr><td>PJM Costs and Off-system Sales Margin Sharing - Indiana</td><td></td><td>2.0</td><td></td><td></td><td>14.1</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>2.3</td><td></td><td></td><td>4.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>2,238.8</td><td></td><td></td><td>1,820.9</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 Approved for Payment</td><td></td><td>2,437.4</td><td></td><td></td><td>2,132.5</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>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>2,480.8</td><td></td><td></td><td>$</td><td>2,052.3</td><td></td><td></td><td></td></tr></table>
|
table
|
116.8
|
monetaryItemType
|
table: <entity> 116.8 </entity> <entity type> monetaryItemType </entity type> <context> Income Taxes, Net (a) | — | 116.8 | (d) </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 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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, Indiana - does not pay a return</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</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>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>Income Taxes, Net (a) (b)</td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>( 103.0 )</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>—</td><td></td><td></td><td>( 103.0 )</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>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>28.9</td><td></td><td></td><td>22.8</td><td></td><td></td><td></td></tr><tr><td>Cook Plant PTC Deferral - Michigan</td><td></td><td>14.5</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>43.4</td><td></td><td></td><td>22.8</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 Liabilities Pending Final Regulatory Determination</td><td></td><td>43.4</td><td></td><td></td><td>( 80.2 )</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 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>174.2</td><td></td><td></td><td>168.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Renewable Energy Surcharge - Michigan</td><td></td><td>24.3</td><td></td><td></td><td>26.6</td><td></td><td></td><td>2 years</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>—</td><td></td><td></td><td>116.8</td><td></td><td></td><td>(d)</td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>0.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>198.6</td><td></td><td></td><td>311.6</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>Excess Nuclear Decommissioning Funding</td><td></td><td>2,137.3</td><td></td><td></td><td>1,721.9</td><td></td><td></td><td>(e)</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Spent Nuclear Fuel</td><td></td><td>50.4</td><td></td><td></td><td>47.6</td><td></td><td></td><td>(e)</td></tr><tr><td>Demand Side Management - Indiana</td><td></td><td>33.0</td><td></td><td></td><td>16.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>13.8</td><td></td><td></td><td>15.8</td><td></td><td></td><td>26 years</td></tr><tr><td>PJM Costs and Off-system Sales Margin Sharing - Indiana</td><td></td><td>2.0</td><td></td><td></td><td>14.1</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>2.3</td><td></td><td></td><td>4.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>2,238.8</td><td></td><td></td><td>1,820.9</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 Approved for Payment</td><td></td><td>2,437.4</td><td></td><td></td><td>2,132.5</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>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>2,480.8</td><td></td><td></td><td>$</td><td>2,052.3</td><td></td><td></td><td></td></tr></table>
|
table
|
0.1
|
monetaryItemType
|
table: <entity> 0.1 </entity> <entity type> monetaryItemType </entity type> <context> Other Regulatory Liabilities Approved for Payment | 0.1 | 0.1 | 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>I&M</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, Indiana - does not pay a return</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</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>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>Income Taxes, Net (a) (b)</td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>( 103.0 )</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>—</td><td></td><td></td><td>( 103.0 )</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>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>28.9</td><td></td><td></td><td>22.8</td><td></td><td></td><td></td></tr><tr><td>Cook Plant PTC Deferral - Michigan</td><td></td><td>14.5</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>43.4</td><td></td><td></td><td>22.8</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 Liabilities Pending Final Regulatory Determination</td><td></td><td>43.4</td><td></td><td></td><td>( 80.2 )</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 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>174.2</td><td></td><td></td><td>168.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Renewable Energy Surcharge - Michigan</td><td></td><td>24.3</td><td></td><td></td><td>26.6</td><td></td><td></td><td>2 years</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>—</td><td></td><td></td><td>116.8</td><td></td><td></td><td>(d)</td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>0.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>198.6</td><td></td><td></td><td>311.6</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>Excess Nuclear Decommissioning Funding</td><td></td><td>2,137.3</td><td></td><td></td><td>1,721.9</td><td></td><td></td><td>(e)</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Spent Nuclear Fuel</td><td></td><td>50.4</td><td></td><td></td><td>47.6</td><td></td><td></td><td>(e)</td></tr><tr><td>Demand Side Management - Indiana</td><td></td><td>33.0</td><td></td><td></td><td>16.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>13.8</td><td></td><td></td><td>15.8</td><td></td><td></td><td>26 years</td></tr><tr><td>PJM Costs and Off-system Sales Margin Sharing - Indiana</td><td></td><td>2.0</td><td></td><td></td><td>14.1</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>2.3</td><td></td><td></td><td>4.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>2,238.8</td><td></td><td></td><td>1,820.9</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 Approved for Payment</td><td></td><td>2,437.4</td><td></td><td></td><td>2,132.5</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>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>2,480.8</td><td></td><td></td><td>$</td><td>2,052.3</td><td></td><td></td><td></td></tr></table>
|
table
|
198.6
|
monetaryItemType
|
table: <entity> 198.6 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Liabilities Currently Paying a Return | 198.6 | 311.6 </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>I&M</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, Indiana - does not pay a return</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</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>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>Income Taxes, Net (a) (b)</td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>( 103.0 )</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>—</td><td></td><td></td><td>( 103.0 )</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>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>28.9</td><td></td><td></td><td>22.8</td><td></td><td></td><td></td></tr><tr><td>Cook Plant PTC Deferral - Michigan</td><td></td><td>14.5</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>43.4</td><td></td><td></td><td>22.8</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 Liabilities Pending Final Regulatory Determination</td><td></td><td>43.4</td><td></td><td></td><td>( 80.2 )</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 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>174.2</td><td></td><td></td><td>168.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Renewable Energy Surcharge - Michigan</td><td></td><td>24.3</td><td></td><td></td><td>26.6</td><td></td><td></td><td>2 years</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>—</td><td></td><td></td><td>116.8</td><td></td><td></td><td>(d)</td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>0.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>198.6</td><td></td><td></td><td>311.6</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>Excess Nuclear Decommissioning Funding</td><td></td><td>2,137.3</td><td></td><td></td><td>1,721.9</td><td></td><td></td><td>(e)</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Spent Nuclear Fuel</td><td></td><td>50.4</td><td></td><td></td><td>47.6</td><td></td><td></td><td>(e)</td></tr><tr><td>Demand Side Management - Indiana</td><td></td><td>33.0</td><td></td><td></td><td>16.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>13.8</td><td></td><td></td><td>15.8</td><td></td><td></td><td>26 years</td></tr><tr><td>PJM Costs and Off-system Sales Margin Sharing - Indiana</td><td></td><td>2.0</td><td></td><td></td><td>14.1</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>2.3</td><td></td><td></td><td>4.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>2,238.8</td><td></td><td></td><td>1,820.9</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 Approved for Payment</td><td></td><td>2,437.4</td><td></td><td></td><td>2,132.5</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>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>2,480.8</td><td></td><td></td><td>$</td><td>2,052.3</td><td></td><td></td><td></td></tr></table>
|
table
|
311.6
|
monetaryItemType
|
table: <entity> 311.6 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Liabilities Currently Paying a Return | 198.6 | 311.6 </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>I&M</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, Indiana - does not pay a return</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</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>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>Income Taxes, Net (a) (b)</td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>( 103.0 )</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>—</td><td></td><td></td><td>( 103.0 )</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>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>28.9</td><td></td><td></td><td>22.8</td><td></td><td></td><td></td></tr><tr><td>Cook Plant PTC Deferral - Michigan</td><td></td><td>14.5</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>43.4</td><td></td><td></td><td>22.8</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 Liabilities Pending Final Regulatory Determination</td><td></td><td>43.4</td><td></td><td></td><td>( 80.2 )</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 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>174.2</td><td></td><td></td><td>168.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Renewable Energy Surcharge - Michigan</td><td></td><td>24.3</td><td></td><td></td><td>26.6</td><td></td><td></td><td>2 years</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>—</td><td></td><td></td><td>116.8</td><td></td><td></td><td>(d)</td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>0.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>198.6</td><td></td><td></td><td>311.6</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>Excess Nuclear Decommissioning Funding</td><td></td><td>2,137.3</td><td></td><td></td><td>1,721.9</td><td></td><td></td><td>(e)</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Spent Nuclear Fuel</td><td></td><td>50.4</td><td></td><td></td><td>47.6</td><td></td><td></td><td>(e)</td></tr><tr><td>Demand Side Management - Indiana</td><td></td><td>33.0</td><td></td><td></td><td>16.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>13.8</td><td></td><td></td><td>15.8</td><td></td><td></td><td>26 years</td></tr><tr><td>PJM Costs and Off-system Sales Margin Sharing - Indiana</td><td></td><td>2.0</td><td></td><td></td><td>14.1</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>2.3</td><td></td><td></td><td>4.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>2,238.8</td><td></td><td></td><td>1,820.9</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 Approved for Payment</td><td></td><td>2,437.4</td><td></td><td></td><td>2,132.5</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>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>2,480.8</td><td></td><td></td><td>$</td><td>2,052.3</td><td></td><td></td><td></td></tr></table>
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table
|
2137.3
|
monetaryItemType
|
table: <entity> 2137.3 </entity> <entity type> monetaryItemType </entity type> <context> Excess Nuclear Decommissioning Funding | 2,137.3 | 1,721.9 | (e) </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>I&M</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, Indiana - does not pay a return</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</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>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>Income Taxes, Net (a) (b)</td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>( 103.0 )</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>—</td><td></td><td></td><td>( 103.0 )</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>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>28.9</td><td></td><td></td><td>22.8</td><td></td><td></td><td></td></tr><tr><td>Cook Plant PTC Deferral - Michigan</td><td></td><td>14.5</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>43.4</td><td></td><td></td><td>22.8</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 Liabilities Pending Final Regulatory Determination</td><td></td><td>43.4</td><td></td><td></td><td>( 80.2 )</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 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>174.2</td><td></td><td></td><td>168.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Renewable Energy Surcharge - Michigan</td><td></td><td>24.3</td><td></td><td></td><td>26.6</td><td></td><td></td><td>2 years</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>—</td><td></td><td></td><td>116.8</td><td></td><td></td><td>(d)</td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>0.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>198.6</td><td></td><td></td><td>311.6</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>Excess Nuclear Decommissioning Funding</td><td></td><td>2,137.3</td><td></td><td></td><td>1,721.9</td><td></td><td></td><td>(e)</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Spent Nuclear Fuel</td><td></td><td>50.4</td><td></td><td></td><td>47.6</td><td></td><td></td><td>(e)</td></tr><tr><td>Demand Side Management - Indiana</td><td></td><td>33.0</td><td></td><td></td><td>16.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>13.8</td><td></td><td></td><td>15.8</td><td></td><td></td><td>26 years</td></tr><tr><td>PJM Costs and Off-system Sales Margin Sharing - Indiana</td><td></td><td>2.0</td><td></td><td></td><td>14.1</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>2.3</td><td></td><td></td><td>4.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>2,238.8</td><td></td><td></td><td>1,820.9</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 Approved for Payment</td><td></td><td>2,437.4</td><td></td><td></td><td>2,132.5</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>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>2,480.8</td><td></td><td></td><td>$</td><td>2,052.3</td><td></td><td></td><td></td></tr></table>
|
table
|
1721.9
|
monetaryItemType
|
table: <entity> 1721.9 </entity> <entity type> monetaryItemType </entity type> <context> Excess Nuclear Decommissioning Funding | 2,137.3 | 1,721.9 | (e) </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 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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, Indiana - does not pay a return</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</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>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>Income Taxes, Net (a) (b)</td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>( 103.0 )</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>—</td><td></td><td></td><td>( 103.0 )</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>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>28.9</td><td></td><td></td><td>22.8</td><td></td><td></td><td></td></tr><tr><td>Cook Plant PTC Deferral - Michigan</td><td></td><td>14.5</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>43.4</td><td></td><td></td><td>22.8</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 Liabilities Pending Final Regulatory Determination</td><td></td><td>43.4</td><td></td><td></td><td>( 80.2 )</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 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>174.2</td><td></td><td></td><td>168.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Renewable Energy Surcharge - Michigan</td><td></td><td>24.3</td><td></td><td></td><td>26.6</td><td></td><td></td><td>2 years</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>—</td><td></td><td></td><td>116.8</td><td></td><td></td><td>(d)</td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>0.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>198.6</td><td></td><td></td><td>311.6</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>Excess Nuclear Decommissioning Funding</td><td></td><td>2,137.3</td><td></td><td></td><td>1,721.9</td><td></td><td></td><td>(e)</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Spent Nuclear Fuel</td><td></td><td>50.4</td><td></td><td></td><td>47.6</td><td></td><td></td><td>(e)</td></tr><tr><td>Demand Side Management - Indiana</td><td></td><td>33.0</td><td></td><td></td><td>16.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>13.8</td><td></td><td></td><td>15.8</td><td></td><td></td><td>26 years</td></tr><tr><td>PJM Costs and Off-system Sales Margin Sharing - Indiana</td><td></td><td>2.0</td><td></td><td></td><td>14.1</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>2.3</td><td></td><td></td><td>4.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>2,238.8</td><td></td><td></td><td>1,820.9</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 Approved for Payment</td><td></td><td>2,437.4</td><td></td><td></td><td>2,132.5</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>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>2,480.8</td><td></td><td></td><td>$</td><td>2,052.3</td><td></td><td></td><td></td></tr></table>
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table
|
50.4
|
monetaryItemType
|
table: <entity> 50.4 </entity> <entity type> monetaryItemType </entity type> <context> Spent Nuclear Fuel | 50.4 | 47.6 | (e) </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 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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, Indiana - does not pay a return</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</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>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>Income Taxes, Net (a) (b)</td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>( 103.0 )</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>—</td><td></td><td></td><td>( 103.0 )</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>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>28.9</td><td></td><td></td><td>22.8</td><td></td><td></td><td></td></tr><tr><td>Cook Plant PTC Deferral - Michigan</td><td></td><td>14.5</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>43.4</td><td></td><td></td><td>22.8</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 Liabilities Pending Final Regulatory Determination</td><td></td><td>43.4</td><td></td><td></td><td>( 80.2 )</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 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>174.2</td><td></td><td></td><td>168.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Renewable Energy Surcharge - Michigan</td><td></td><td>24.3</td><td></td><td></td><td>26.6</td><td></td><td></td><td>2 years</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>—</td><td></td><td></td><td>116.8</td><td></td><td></td><td>(d)</td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>0.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>198.6</td><td></td><td></td><td>311.6</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>Excess Nuclear Decommissioning Funding</td><td></td><td>2,137.3</td><td></td><td></td><td>1,721.9</td><td></td><td></td><td>(e)</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Spent Nuclear Fuel</td><td></td><td>50.4</td><td></td><td></td><td>47.6</td><td></td><td></td><td>(e)</td></tr><tr><td>Demand Side Management - Indiana</td><td></td><td>33.0</td><td></td><td></td><td>16.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>13.8</td><td></td><td></td><td>15.8</td><td></td><td></td><td>26 years</td></tr><tr><td>PJM Costs and Off-system Sales Margin Sharing - Indiana</td><td></td><td>2.0</td><td></td><td></td><td>14.1</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>2.3</td><td></td><td></td><td>4.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>2,238.8</td><td></td><td></td><td>1,820.9</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 Approved for Payment</td><td></td><td>2,437.4</td><td></td><td></td><td>2,132.5</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>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>2,480.8</td><td></td><td></td><td>$</td><td>2,052.3</td><td></td><td></td><td></td></tr></table>
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table
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47.6
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monetaryItemType
|
table: <entity> 47.6 </entity> <entity type> monetaryItemType </entity type> <context> Spent Nuclear Fuel | 50.4 | 47.6 | (e) </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 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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, Indiana - does not pay a return</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</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>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>Income Taxes, Net (a) (b)</td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>( 103.0 )</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>—</td><td></td><td></td><td>( 103.0 )</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>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>28.9</td><td></td><td></td><td>22.8</td><td></td><td></td><td></td></tr><tr><td>Cook Plant PTC Deferral - Michigan</td><td></td><td>14.5</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>43.4</td><td></td><td></td><td>22.8</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 Liabilities Pending Final Regulatory Determination</td><td></td><td>43.4</td><td></td><td></td><td>( 80.2 )</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 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>174.2</td><td></td><td></td><td>168.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Renewable Energy Surcharge - Michigan</td><td></td><td>24.3</td><td></td><td></td><td>26.6</td><td></td><td></td><td>2 years</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>—</td><td></td><td></td><td>116.8</td><td></td><td></td><td>(d)</td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>0.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>198.6</td><td></td><td></td><td>311.6</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>Excess Nuclear Decommissioning Funding</td><td></td><td>2,137.3</td><td></td><td></td><td>1,721.9</td><td></td><td></td><td>(e)</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Spent Nuclear Fuel</td><td></td><td>50.4</td><td></td><td></td><td>47.6</td><td></td><td></td><td>(e)</td></tr><tr><td>Demand Side Management - Indiana</td><td></td><td>33.0</td><td></td><td></td><td>16.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>13.8</td><td></td><td></td><td>15.8</td><td></td><td></td><td>26 years</td></tr><tr><td>PJM Costs and Off-system Sales Margin Sharing - Indiana</td><td></td><td>2.0</td><td></td><td></td><td>14.1</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>2.3</td><td></td><td></td><td>4.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>2,238.8</td><td></td><td></td><td>1,820.9</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 Approved for Payment</td><td></td><td>2,437.4</td><td></td><td></td><td>2,132.5</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>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>2,480.8</td><td></td><td></td><td>$</td><td>2,052.3</td><td></td><td></td><td></td></tr></table>
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table
|
33.0
|
monetaryItemType
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table: <entity> 33.0 </entity> <entity type> monetaryItemType </entity type> <context> Demand Side Management - Indiana | 33.0 | 16.7 | 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>I&M</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, Indiana - does not pay a return</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</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>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>Income Taxes, Net (a) (b)</td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>( 103.0 )</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>—</td><td></td><td></td><td>( 103.0 )</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>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>28.9</td><td></td><td></td><td>22.8</td><td></td><td></td><td></td></tr><tr><td>Cook Plant PTC Deferral - Michigan</td><td></td><td>14.5</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>43.4</td><td></td><td></td><td>22.8</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 Liabilities Pending Final Regulatory Determination</td><td></td><td>43.4</td><td></td><td></td><td>( 80.2 )</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 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>174.2</td><td></td><td></td><td>168.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Renewable Energy Surcharge - Michigan</td><td></td><td>24.3</td><td></td><td></td><td>26.6</td><td></td><td></td><td>2 years</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>—</td><td></td><td></td><td>116.8</td><td></td><td></td><td>(d)</td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>0.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>198.6</td><td></td><td></td><td>311.6</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>Excess Nuclear Decommissioning Funding</td><td></td><td>2,137.3</td><td></td><td></td><td>1,721.9</td><td></td><td></td><td>(e)</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Spent Nuclear Fuel</td><td></td><td>50.4</td><td></td><td></td><td>47.6</td><td></td><td></td><td>(e)</td></tr><tr><td>Demand Side Management - Indiana</td><td></td><td>33.0</td><td></td><td></td><td>16.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>13.8</td><td></td><td></td><td>15.8</td><td></td><td></td><td>26 years</td></tr><tr><td>PJM Costs and Off-system Sales Margin Sharing - Indiana</td><td></td><td>2.0</td><td></td><td></td><td>14.1</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>2.3</td><td></td><td></td><td>4.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>2,238.8</td><td></td><td></td><td>1,820.9</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 Approved for Payment</td><td></td><td>2,437.4</td><td></td><td></td><td>2,132.5</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>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>2,480.8</td><td></td><td></td><td>$</td><td>2,052.3</td><td></td><td></td><td></td></tr></table>
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table
|
16.7
|
monetaryItemType
|
table: <entity> 16.7 </entity> <entity type> monetaryItemType </entity type> <context> Demand Side Management - Indiana | 33.0 | 16.7 | 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>I&M</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, Indiana - does not pay a return</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</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>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>Income Taxes, Net (a) (b)</td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>( 103.0 )</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>—</td><td></td><td></td><td>( 103.0 )</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>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>28.9</td><td></td><td></td><td>22.8</td><td></td><td></td><td></td></tr><tr><td>Cook Plant PTC Deferral - Michigan</td><td></td><td>14.5</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>43.4</td><td></td><td></td><td>22.8</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 Liabilities Pending Final Regulatory Determination</td><td></td><td>43.4</td><td></td><td></td><td>( 80.2 )</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 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>174.2</td><td></td><td></td><td>168.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Renewable Energy Surcharge - Michigan</td><td></td><td>24.3</td><td></td><td></td><td>26.6</td><td></td><td></td><td>2 years</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>—</td><td></td><td></td><td>116.8</td><td></td><td></td><td>(d)</td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>0.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>198.6</td><td></td><td></td><td>311.6</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>Excess Nuclear Decommissioning Funding</td><td></td><td>2,137.3</td><td></td><td></td><td>1,721.9</td><td></td><td></td><td>(e)</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Spent Nuclear Fuel</td><td></td><td>50.4</td><td></td><td></td><td>47.6</td><td></td><td></td><td>(e)</td></tr><tr><td>Demand Side Management - Indiana</td><td></td><td>33.0</td><td></td><td></td><td>16.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>13.8</td><td></td><td></td><td>15.8</td><td></td><td></td><td>26 years</td></tr><tr><td>PJM Costs and Off-system Sales Margin Sharing - Indiana</td><td></td><td>2.0</td><td></td><td></td><td>14.1</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>2.3</td><td></td><td></td><td>4.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>2,238.8</td><td></td><td></td><td>1,820.9</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 Approved for Payment</td><td></td><td>2,437.4</td><td></td><td></td><td>2,132.5</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>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>2,480.8</td><td></td><td></td><td>$</td><td>2,052.3</td><td></td><td></td><td></td></tr></table>
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table
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13.8
|
monetaryItemType
|
table: <entity> 13.8 </entity> <entity type> monetaryItemType </entity type> <context> Deferred Investment Tax Credits | 13.8 | 15.8 | 26 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>I&M</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, Indiana - does not pay a return</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</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>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>Income Taxes, Net (a) (b)</td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>( 103.0 )</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>—</td><td></td><td></td><td>( 103.0 )</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>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>28.9</td><td></td><td></td><td>22.8</td><td></td><td></td><td></td></tr><tr><td>Cook Plant PTC Deferral - Michigan</td><td></td><td>14.5</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>43.4</td><td></td><td></td><td>22.8</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 Liabilities Pending Final Regulatory Determination</td><td></td><td>43.4</td><td></td><td></td><td>( 80.2 )</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 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>174.2</td><td></td><td></td><td>168.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Renewable Energy Surcharge - Michigan</td><td></td><td>24.3</td><td></td><td></td><td>26.6</td><td></td><td></td><td>2 years</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>—</td><td></td><td></td><td>116.8</td><td></td><td></td><td>(d)</td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>0.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>198.6</td><td></td><td></td><td>311.6</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>Excess Nuclear Decommissioning Funding</td><td></td><td>2,137.3</td><td></td><td></td><td>1,721.9</td><td></td><td></td><td>(e)</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Spent Nuclear Fuel</td><td></td><td>50.4</td><td></td><td></td><td>47.6</td><td></td><td></td><td>(e)</td></tr><tr><td>Demand Side Management - Indiana</td><td></td><td>33.0</td><td></td><td></td><td>16.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>13.8</td><td></td><td></td><td>15.8</td><td></td><td></td><td>26 years</td></tr><tr><td>PJM Costs and Off-system Sales Margin Sharing - Indiana</td><td></td><td>2.0</td><td></td><td></td><td>14.1</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>2.3</td><td></td><td></td><td>4.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>2,238.8</td><td></td><td></td><td>1,820.9</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 Approved for Payment</td><td></td><td>2,437.4</td><td></td><td></td><td>2,132.5</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>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>2,480.8</td><td></td><td></td><td>$</td><td>2,052.3</td><td></td><td></td><td></td></tr></table>
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table
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15.8
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monetaryItemType
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table: <entity> 15.8 </entity> <entity type> monetaryItemType </entity type> <context> Deferred Investment Tax Credits | 13.8 | 15.8 | 26 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>I&M</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, Indiana - does not pay a return</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</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>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>Income Taxes, Net (a) (b)</td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>( 103.0 )</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>—</td><td></td><td></td><td>( 103.0 )</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>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>28.9</td><td></td><td></td><td>22.8</td><td></td><td></td><td></td></tr><tr><td>Cook Plant PTC Deferral - Michigan</td><td></td><td>14.5</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>43.4</td><td></td><td></td><td>22.8</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 Liabilities Pending Final Regulatory Determination</td><td></td><td>43.4</td><td></td><td></td><td>( 80.2 )</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 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>174.2</td><td></td><td></td><td>168.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Renewable Energy Surcharge - Michigan</td><td></td><td>24.3</td><td></td><td></td><td>26.6</td><td></td><td></td><td>2 years</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>—</td><td></td><td></td><td>116.8</td><td></td><td></td><td>(d)</td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>0.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>198.6</td><td></td><td></td><td>311.6</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>Excess Nuclear Decommissioning Funding</td><td></td><td>2,137.3</td><td></td><td></td><td>1,721.9</td><td></td><td></td><td>(e)</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Spent Nuclear Fuel</td><td></td><td>50.4</td><td></td><td></td><td>47.6</td><td></td><td></td><td>(e)</td></tr><tr><td>Demand Side Management - Indiana</td><td></td><td>33.0</td><td></td><td></td><td>16.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>13.8</td><td></td><td></td><td>15.8</td><td></td><td></td><td>26 years</td></tr><tr><td>PJM Costs and Off-system Sales Margin Sharing - Indiana</td><td></td><td>2.0</td><td></td><td></td><td>14.1</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>2.3</td><td></td><td></td><td>4.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>2,238.8</td><td></td><td></td><td>1,820.9</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 Approved for Payment</td><td></td><td>2,437.4</td><td></td><td></td><td>2,132.5</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>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>2,480.8</td><td></td><td></td><td>$</td><td>2,052.3</td><td></td><td></td><td></td></tr></table>
|
table
|
2.0
|
monetaryItemType
|
table: <entity> 2.0 </entity> <entity type> monetaryItemType </entity type> <context> PJM Costs and Off-system Sales Margin Sharing - Indiana | 2.0 | 14.1 | 1 year </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>I&M</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, Indiana - does not pay a return</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</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>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>Income Taxes, Net (a) (b)</td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>( 103.0 )</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>—</td><td></td><td></td><td>( 103.0 )</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>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>28.9</td><td></td><td></td><td>22.8</td><td></td><td></td><td></td></tr><tr><td>Cook Plant PTC Deferral - Michigan</td><td></td><td>14.5</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>43.4</td><td></td><td></td><td>22.8</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 Liabilities Pending Final Regulatory Determination</td><td></td><td>43.4</td><td></td><td></td><td>( 80.2 )</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 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>174.2</td><td></td><td></td><td>168.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Renewable Energy Surcharge - Michigan</td><td></td><td>24.3</td><td></td><td></td><td>26.6</td><td></td><td></td><td>2 years</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>—</td><td></td><td></td><td>116.8</td><td></td><td></td><td>(d)</td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>0.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>198.6</td><td></td><td></td><td>311.6</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>Excess Nuclear Decommissioning Funding</td><td></td><td>2,137.3</td><td></td><td></td><td>1,721.9</td><td></td><td></td><td>(e)</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Spent Nuclear Fuel</td><td></td><td>50.4</td><td></td><td></td><td>47.6</td><td></td><td></td><td>(e)</td></tr><tr><td>Demand Side Management - Indiana</td><td></td><td>33.0</td><td></td><td></td><td>16.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>13.8</td><td></td><td></td><td>15.8</td><td></td><td></td><td>26 years</td></tr><tr><td>PJM Costs and Off-system Sales Margin Sharing - Indiana</td><td></td><td>2.0</td><td></td><td></td><td>14.1</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>2.3</td><td></td><td></td><td>4.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>2,238.8</td><td></td><td></td><td>1,820.9</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 Approved for Payment</td><td></td><td>2,437.4</td><td></td><td></td><td>2,132.5</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>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>2,480.8</td><td></td><td></td><td>$</td><td>2,052.3</td><td></td><td></td><td></td></tr></table>
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table
|
14.1
|
monetaryItemType
|
table: <entity> 14.1 </entity> <entity type> monetaryItemType </entity type> <context> PJM Costs and Off-system Sales Margin Sharing - Indiana | 2.0 | 14.1 | 1 year </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>I&M</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, Indiana - does not pay a return</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</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>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>Income Taxes, Net (a) (b)</td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>( 103.0 )</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>—</td><td></td><td></td><td>( 103.0 )</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>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>28.9</td><td></td><td></td><td>22.8</td><td></td><td></td><td></td></tr><tr><td>Cook Plant PTC Deferral - Michigan</td><td></td><td>14.5</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>43.4</td><td></td><td></td><td>22.8</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 Liabilities Pending Final Regulatory Determination</td><td></td><td>43.4</td><td></td><td></td><td>( 80.2 )</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 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>174.2</td><td></td><td></td><td>168.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Renewable Energy Surcharge - Michigan</td><td></td><td>24.3</td><td></td><td></td><td>26.6</td><td></td><td></td><td>2 years</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>—</td><td></td><td></td><td>116.8</td><td></td><td></td><td>(d)</td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>0.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>198.6</td><td></td><td></td><td>311.6</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>Excess Nuclear Decommissioning Funding</td><td></td><td>2,137.3</td><td></td><td></td><td>1,721.9</td><td></td><td></td><td>(e)</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Spent Nuclear Fuel</td><td></td><td>50.4</td><td></td><td></td><td>47.6</td><td></td><td></td><td>(e)</td></tr><tr><td>Demand Side Management - Indiana</td><td></td><td>33.0</td><td></td><td></td><td>16.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>13.8</td><td></td><td></td><td>15.8</td><td></td><td></td><td>26 years</td></tr><tr><td>PJM Costs and Off-system Sales Margin Sharing - Indiana</td><td></td><td>2.0</td><td></td><td></td><td>14.1</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>2.3</td><td></td><td></td><td>4.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>2,238.8</td><td></td><td></td><td>1,820.9</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 Approved for Payment</td><td></td><td>2,437.4</td><td></td><td></td><td>2,132.5</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>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>2,480.8</td><td></td><td></td><td>$</td><td>2,052.3</td><td></td><td></td><td></td></tr></table>
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table
|
2.3
|
monetaryItemType
|
table: <entity> 2.3 </entity> <entity type> monetaryItemType </entity type> <context> Other Regulatory Liabilities Approved for Payment | 2.3 | 4.8 | 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>I&M</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, Indiana - does not pay a return</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</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>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>Income Taxes, Net (a) (b)</td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>( 103.0 )</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>—</td><td></td><td></td><td>( 103.0 )</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>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>28.9</td><td></td><td></td><td>22.8</td><td></td><td></td><td></td></tr><tr><td>Cook Plant PTC Deferral - Michigan</td><td></td><td>14.5</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>43.4</td><td></td><td></td><td>22.8</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 Liabilities Pending Final Regulatory Determination</td><td></td><td>43.4</td><td></td><td></td><td>( 80.2 )</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 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>174.2</td><td></td><td></td><td>168.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Renewable Energy Surcharge - Michigan</td><td></td><td>24.3</td><td></td><td></td><td>26.6</td><td></td><td></td><td>2 years</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>—</td><td></td><td></td><td>116.8</td><td></td><td></td><td>(d)</td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>0.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>198.6</td><td></td><td></td><td>311.6</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>Excess Nuclear Decommissioning Funding</td><td></td><td>2,137.3</td><td></td><td></td><td>1,721.9</td><td></td><td></td><td>(e)</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Spent Nuclear Fuel</td><td></td><td>50.4</td><td></td><td></td><td>47.6</td><td></td><td></td><td>(e)</td></tr><tr><td>Demand Side Management - Indiana</td><td></td><td>33.0</td><td></td><td></td><td>16.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>13.8</td><td></td><td></td><td>15.8</td><td></td><td></td><td>26 years</td></tr><tr><td>PJM Costs and Off-system Sales Margin Sharing - Indiana</td><td></td><td>2.0</td><td></td><td></td><td>14.1</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>2.3</td><td></td><td></td><td>4.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>2,238.8</td><td></td><td></td><td>1,820.9</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 Approved for Payment</td><td></td><td>2,437.4</td><td></td><td></td><td>2,132.5</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>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>2,480.8</td><td></td><td></td><td>$</td><td>2,052.3</td><td></td><td></td><td></td></tr></table>
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table
|
4.8
|
monetaryItemType
|
table: <entity> 4.8 </entity> <entity type> monetaryItemType </entity type> <context> Other Regulatory Liabilities Approved for Payment | 2.3 | 4.8 | 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>I&M</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, Indiana - does not pay a return</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</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>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>Income Taxes, Net (a) (b)</td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>( 103.0 )</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>—</td><td></td><td></td><td>( 103.0 )</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>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>28.9</td><td></td><td></td><td>22.8</td><td></td><td></td><td></td></tr><tr><td>Cook Plant PTC Deferral - Michigan</td><td></td><td>14.5</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>43.4</td><td></td><td></td><td>22.8</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 Liabilities Pending Final Regulatory Determination</td><td></td><td>43.4</td><td></td><td></td><td>( 80.2 )</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 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>174.2</td><td></td><td></td><td>168.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Renewable Energy Surcharge - Michigan</td><td></td><td>24.3</td><td></td><td></td><td>26.6</td><td></td><td></td><td>2 years</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>—</td><td></td><td></td><td>116.8</td><td></td><td></td><td>(d)</td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>0.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>198.6</td><td></td><td></td><td>311.6</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>Excess Nuclear Decommissioning Funding</td><td></td><td>2,137.3</td><td></td><td></td><td>1,721.9</td><td></td><td></td><td>(e)</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Spent Nuclear Fuel</td><td></td><td>50.4</td><td></td><td></td><td>47.6</td><td></td><td></td><td>(e)</td></tr><tr><td>Demand Side Management - Indiana</td><td></td><td>33.0</td><td></td><td></td><td>16.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>13.8</td><td></td><td></td><td>15.8</td><td></td><td></td><td>26 years</td></tr><tr><td>PJM Costs and Off-system Sales Margin Sharing - Indiana</td><td></td><td>2.0</td><td></td><td></td><td>14.1</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>2.3</td><td></td><td></td><td>4.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>2,238.8</td><td></td><td></td><td>1,820.9</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 Approved for Payment</td><td></td><td>2,437.4</td><td></td><td></td><td>2,132.5</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>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>2,480.8</td><td></td><td></td><td>$</td><td>2,052.3</td><td></td><td></td><td></td></tr></table>
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table
|
2238.8
|
monetaryItemType
|
table: <entity> 2238.8 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Liabilities Currently Not Paying a Return | 2,238.8 | 1,820.9 </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>I&M</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, Indiana - does not pay a return</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</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>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>Income Taxes, Net (a) (b)</td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>( 103.0 )</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>—</td><td></td><td></td><td>( 103.0 )</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>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>28.9</td><td></td><td></td><td>22.8</td><td></td><td></td><td></td></tr><tr><td>Cook Plant PTC Deferral - Michigan</td><td></td><td>14.5</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>43.4</td><td></td><td></td><td>22.8</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 Liabilities Pending Final Regulatory Determination</td><td></td><td>43.4</td><td></td><td></td><td>( 80.2 )</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 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>174.2</td><td></td><td></td><td>168.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Renewable Energy Surcharge - Michigan</td><td></td><td>24.3</td><td></td><td></td><td>26.6</td><td></td><td></td><td>2 years</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>—</td><td></td><td></td><td>116.8</td><td></td><td></td><td>(d)</td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>0.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>198.6</td><td></td><td></td><td>311.6</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>Excess Nuclear Decommissioning Funding</td><td></td><td>2,137.3</td><td></td><td></td><td>1,721.9</td><td></td><td></td><td>(e)</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Spent Nuclear Fuel</td><td></td><td>50.4</td><td></td><td></td><td>47.6</td><td></td><td></td><td>(e)</td></tr><tr><td>Demand Side Management - Indiana</td><td></td><td>33.0</td><td></td><td></td><td>16.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>13.8</td><td></td><td></td><td>15.8</td><td></td><td></td><td>26 years</td></tr><tr><td>PJM Costs and Off-system Sales Margin Sharing - Indiana</td><td></td><td>2.0</td><td></td><td></td><td>14.1</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>2.3</td><td></td><td></td><td>4.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>2,238.8</td><td></td><td></td><td>1,820.9</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 Approved for Payment</td><td></td><td>2,437.4</td><td></td><td></td><td>2,132.5</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>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>2,480.8</td><td></td><td></td><td>$</td><td>2,052.3</td><td></td><td></td><td></td></tr></table>
|
table
|
1820.9
|
monetaryItemType
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table: <entity> 1820.9 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Liabilities Currently Not Paying a Return | 2,238.8 | 1,820.9 </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 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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, Indiana - does not pay a return</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</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>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>Income Taxes, Net (a) (b)</td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>( 103.0 )</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>—</td><td></td><td></td><td>( 103.0 )</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>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>28.9</td><td></td><td></td><td>22.8</td><td></td><td></td><td></td></tr><tr><td>Cook Plant PTC Deferral - Michigan</td><td></td><td>14.5</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>43.4</td><td></td><td></td><td>22.8</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 Liabilities Pending Final Regulatory Determination</td><td></td><td>43.4</td><td></td><td></td><td>( 80.2 )</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 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>174.2</td><td></td><td></td><td>168.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Renewable Energy Surcharge - Michigan</td><td></td><td>24.3</td><td></td><td></td><td>26.6</td><td></td><td></td><td>2 years</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>—</td><td></td><td></td><td>116.8</td><td></td><td></td><td>(d)</td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>0.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>198.6</td><td></td><td></td><td>311.6</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>Excess Nuclear Decommissioning Funding</td><td></td><td>2,137.3</td><td></td><td></td><td>1,721.9</td><td></td><td></td><td>(e)</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Spent Nuclear Fuel</td><td></td><td>50.4</td><td></td><td></td><td>47.6</td><td></td><td></td><td>(e)</td></tr><tr><td>Demand Side Management - Indiana</td><td></td><td>33.0</td><td></td><td></td><td>16.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>13.8</td><td></td><td></td><td>15.8</td><td></td><td></td><td>26 years</td></tr><tr><td>PJM Costs and Off-system Sales Margin Sharing - Indiana</td><td></td><td>2.0</td><td></td><td></td><td>14.1</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>2.3</td><td></td><td></td><td>4.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>2,238.8</td><td></td><td></td><td>1,820.9</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 Approved for Payment</td><td></td><td>2,437.4</td><td></td><td></td><td>2,132.5</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>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>2,480.8</td><td></td><td></td><td>$</td><td>2,052.3</td><td></td><td></td><td></td></tr></table>
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table
|
2437.4
|
monetaryItemType
|
table: <entity> 2437.4 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Liabilities Approved for Payment | 2,437.4 | 2,132.5 </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 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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, Indiana - does not pay a return</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</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>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>Income Taxes, Net (a) (b)</td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>( 103.0 )</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>—</td><td></td><td></td><td>( 103.0 )</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>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>28.9</td><td></td><td></td><td>22.8</td><td></td><td></td><td></td></tr><tr><td>Cook Plant PTC Deferral - Michigan</td><td></td><td>14.5</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>43.4</td><td></td><td></td><td>22.8</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 Liabilities Pending Final Regulatory Determination</td><td></td><td>43.4</td><td></td><td></td><td>( 80.2 )</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 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>174.2</td><td></td><td></td><td>168.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Renewable Energy Surcharge - Michigan</td><td></td><td>24.3</td><td></td><td></td><td>26.6</td><td></td><td></td><td>2 years</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>—</td><td></td><td></td><td>116.8</td><td></td><td></td><td>(d)</td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>0.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>198.6</td><td></td><td></td><td>311.6</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>Excess Nuclear Decommissioning Funding</td><td></td><td>2,137.3</td><td></td><td></td><td>1,721.9</td><td></td><td></td><td>(e)</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Spent Nuclear Fuel</td><td></td><td>50.4</td><td></td><td></td><td>47.6</td><td></td><td></td><td>(e)</td></tr><tr><td>Demand Side Management - Indiana</td><td></td><td>33.0</td><td></td><td></td><td>16.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>13.8</td><td></td><td></td><td>15.8</td><td></td><td></td><td>26 years</td></tr><tr><td>PJM Costs and Off-system Sales Margin Sharing - Indiana</td><td></td><td>2.0</td><td></td><td></td><td>14.1</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>2.3</td><td></td><td></td><td>4.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>2,238.8</td><td></td><td></td><td>1,820.9</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 Approved for Payment</td><td></td><td>2,437.4</td><td></td><td></td><td>2,132.5</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>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>2,480.8</td><td></td><td></td><td>$</td><td>2,052.3</td><td></td><td></td><td></td></tr></table>
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table
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2132.5
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monetaryItemType
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table: <entity> 2132.5 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Liabilities Approved for Payment | 2,437.4 | 2,132.5 </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 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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, Indiana - does not pay a return</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</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>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>Income Taxes, Net (a) (b)</td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>( 103.0 )</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>—</td><td></td><td></td><td>( 103.0 )</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>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>28.9</td><td></td><td></td><td>22.8</td><td></td><td></td><td></td></tr><tr><td>Cook Plant PTC Deferral - Michigan</td><td></td><td>14.5</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>43.4</td><td></td><td></td><td>22.8</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 Liabilities Pending Final Regulatory Determination</td><td></td><td>43.4</td><td></td><td></td><td>( 80.2 )</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 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>174.2</td><td></td><td></td><td>168.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Renewable Energy Surcharge - Michigan</td><td></td><td>24.3</td><td></td><td></td><td>26.6</td><td></td><td></td><td>2 years</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>—</td><td></td><td></td><td>116.8</td><td></td><td></td><td>(d)</td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>0.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>198.6</td><td></td><td></td><td>311.6</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>Excess Nuclear Decommissioning Funding</td><td></td><td>2,137.3</td><td></td><td></td><td>1,721.9</td><td></td><td></td><td>(e)</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Spent Nuclear Fuel</td><td></td><td>50.4</td><td></td><td></td><td>47.6</td><td></td><td></td><td>(e)</td></tr><tr><td>Demand Side Management - Indiana</td><td></td><td>33.0</td><td></td><td></td><td>16.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>13.8</td><td></td><td></td><td>15.8</td><td></td><td></td><td>26 years</td></tr><tr><td>PJM Costs and Off-system Sales Margin Sharing - Indiana</td><td></td><td>2.0</td><td></td><td></td><td>14.1</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>2.3</td><td></td><td></td><td>4.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>2,238.8</td><td></td><td></td><td>1,820.9</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 Approved for Payment</td><td></td><td>2,437.4</td><td></td><td></td><td>2,132.5</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>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>2,480.8</td><td></td><td></td><td>$</td><td>2,052.3</td><td></td><td></td><td></td></tr></table>
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table
|
2480.8
|
monetaryItemType
|
table: <entity> 2480.8 </entity> <entity type> monetaryItemType </entity type> <context> Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits | $ | 2,480.8 | $ | 2,052.3 </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>I&M</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs, Indiana - does not pay a return</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</td><td></td><td></td><td>1 year</td></tr><tr><td>Total Current Regulatory Liabilities</td><td></td><td>$</td><td>10.3</td><td></td><td></td><td>$</td><td>23.2</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>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>Income Taxes, Net (a) (b)</td><td></td><td>$</td><td>—</td><td></td><td></td><td>$</td><td>( 103.0 )</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>—</td><td></td><td></td><td>( 103.0 )</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>FERC 2021 Transmission Formula Rate Challenge Refunds</td><td></td><td>28.9</td><td></td><td></td><td>22.8</td><td></td><td></td><td></td></tr><tr><td>Cook Plant PTC Deferral - Michigan</td><td></td><td>14.5</td><td></td><td></td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>43.4</td><td></td><td></td><td>22.8</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 Liabilities Pending Final Regulatory Determination</td><td></td><td>43.4</td><td></td><td></td><td>( 80.2 )</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 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>174.2</td><td></td><td></td><td>168.1</td><td></td><td></td><td>(c)</td></tr><tr><td>Renewable Energy Surcharge - Michigan</td><td></td><td>24.3</td><td></td><td></td><td>26.6</td><td></td><td></td><td>2 years</td></tr><tr><td>Income Taxes, Net (a)</td><td></td><td>—</td><td></td><td></td><td>116.8</td><td></td><td></td><td>(d)</td></tr><tr><td>Other Regulatory Liabilities Approved for Payment</td><td></td><td>0.1</td><td></td><td></td><td>0.1</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Paying a Return</td><td></td><td>198.6</td><td></td><td></td><td>311.6</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>Excess Nuclear Decommissioning Funding</td><td></td><td>2,137.3</td><td></td><td></td><td>1,721.9</td><td></td><td></td><td>(e)</td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Spent Nuclear Fuel</td><td></td><td>50.4</td><td></td><td></td><td>47.6</td><td></td><td></td><td>(e)</td></tr><tr><td>Demand Side Management - Indiana</td><td></td><td>33.0</td><td></td><td></td><td>16.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Deferred Investment Tax Credits</td><td></td><td>13.8</td><td></td><td></td><td>15.8</td><td></td><td></td><td>26 years</td></tr><tr><td>PJM Costs and Off-system Sales Margin Sharing - Indiana</td><td></td><td>2.0</td><td></td><td></td><td>14.1</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>2.3</td><td></td><td></td><td>4.8</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>2,238.8</td><td></td><td></td><td>1,820.9</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 Approved for Payment</td><td></td><td>2,437.4</td><td></td><td></td><td>2,132.5</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>Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits</td><td></td><td>$</td><td>2,480.8</td><td></td><td></td><td>$</td><td>2,052.3</td><td></td><td></td><td></td></tr></table>
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table
|
2052.3
|
monetaryItemType
|
table: <entity> 2052.3 </entity> <entity type> monetaryItemType </entity type> <context> Total Noncurrent Regulatory Liabilities and Deferred Investment Tax Credits | $ | 2,480.8 | $ | 2,052.3 </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>OPCo</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>0.4</td><td></td><td></td><td>—</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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>0.1</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>0.1</td><td></td><td></td><td>23.6</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 Pending Final Regulatory Approval</td><td></td><td>0.5</td><td></td><td></td><td>23.6</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 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>Ohio Basic Transmission Cost Rider</td><td></td><td>26.1</td><td></td><td></td><td>42.2</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Decoupling</td><td></td><td>—</td><td></td><td></td><td>1.8</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></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>26.1</td><td></td><td></td><td>44.0</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>Pension and OPEB Funded Status</td><td></td><td>134.0</td><td></td><td></td><td>147.1</td><td></td><td></td><td>12 years</td></tr><tr><td>OVEC Purchased Power</td><td></td><td>52.0</td><td></td><td></td><td>50.1</td><td></td><td></td><td>2 years</td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>47.6</td><td></td><td></td><td>50.8</td><td></td><td></td><td>8 years</td></tr><tr><td>Smart Grid Costs</td><td></td><td>33.8</td><td></td><td></td><td>26.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Storm-Related Costs</td><td></td><td>28.6</td><td></td><td></td><td>30.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Enhanced Service Reliability Plan</td><td></td><td>26.2</td><td></td><td></td><td>35.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Bad Debt Rider</td><td></td><td>13.7</td><td></td><td></td><td>0.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Investment Rider</td><td></td><td>11.0</td><td></td><td></td><td>35.3</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>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>352.5</td><td></td><td></td><td>387.4</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>Total Regulatory Assets Approved for Recovery</td><td></td><td>378.6</td><td></td><td></td><td>431.4</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>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>379.1</td><td></td><td></td><td>$</td><td>455.0</td><td></td><td></td><td></td></tr></table>
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table
|
0.4
|
monetaryItemType
|
table: <entity> 0.4 </entity> <entity type> monetaryItemType </entity type> <context> Other Regulatory Assets Pending Final Regulatory Approval | $ | 0.4 | $ | — </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>OPCo</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>0.4</td><td></td><td></td><td>—</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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>0.1</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>0.1</td><td></td><td></td><td>23.6</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 Pending Final Regulatory Approval</td><td></td><td>0.5</td><td></td><td></td><td>23.6</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 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>Ohio Basic Transmission Cost Rider</td><td></td><td>26.1</td><td></td><td></td><td>42.2</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Decoupling</td><td></td><td>—</td><td></td><td></td><td>1.8</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></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>26.1</td><td></td><td></td><td>44.0</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>Pension and OPEB Funded Status</td><td></td><td>134.0</td><td></td><td></td><td>147.1</td><td></td><td></td><td>12 years</td></tr><tr><td>OVEC Purchased Power</td><td></td><td>52.0</td><td></td><td></td><td>50.1</td><td></td><td></td><td>2 years</td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>47.6</td><td></td><td></td><td>50.8</td><td></td><td></td><td>8 years</td></tr><tr><td>Smart Grid Costs</td><td></td><td>33.8</td><td></td><td></td><td>26.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Storm-Related Costs</td><td></td><td>28.6</td><td></td><td></td><td>30.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Enhanced Service Reliability Plan</td><td></td><td>26.2</td><td></td><td></td><td>35.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Bad Debt Rider</td><td></td><td>13.7</td><td></td><td></td><td>0.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Investment Rider</td><td></td><td>11.0</td><td></td><td></td><td>35.3</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>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>352.5</td><td></td><td></td><td>387.4</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>Total Regulatory Assets Approved for Recovery</td><td></td><td>378.6</td><td></td><td></td><td>431.4</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>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>379.1</td><td></td><td></td><td>$</td><td>455.0</td><td></td><td></td><td></td></tr></table>
|
table
|
—
|
monetaryItemType
|
table: <entity> — </entity> <entity type> monetaryItemType </entity type> <context> Other Regulatory Assets Pending Final Regulatory Approval | $ | 0.4 | $ | — </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>OPCo</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>0.4</td><td></td><td></td><td>—</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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>0.1</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>0.1</td><td></td><td></td><td>23.6</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 Pending Final Regulatory Approval</td><td></td><td>0.5</td><td></td><td></td><td>23.6</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 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>Ohio Basic Transmission Cost Rider</td><td></td><td>26.1</td><td></td><td></td><td>42.2</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Decoupling</td><td></td><td>—</td><td></td><td></td><td>1.8</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></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>26.1</td><td></td><td></td><td>44.0</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>Pension and OPEB Funded Status</td><td></td><td>134.0</td><td></td><td></td><td>147.1</td><td></td><td></td><td>12 years</td></tr><tr><td>OVEC Purchased Power</td><td></td><td>52.0</td><td></td><td></td><td>50.1</td><td></td><td></td><td>2 years</td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>47.6</td><td></td><td></td><td>50.8</td><td></td><td></td><td>8 years</td></tr><tr><td>Smart Grid Costs</td><td></td><td>33.8</td><td></td><td></td><td>26.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Storm-Related Costs</td><td></td><td>28.6</td><td></td><td></td><td>30.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Enhanced Service Reliability Plan</td><td></td><td>26.2</td><td></td><td></td><td>35.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Bad Debt Rider</td><td></td><td>13.7</td><td></td><td></td><td>0.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Investment Rider</td><td></td><td>11.0</td><td></td><td></td><td>35.3</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>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>352.5</td><td></td><td></td><td>387.4</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>Total Regulatory Assets Approved for Recovery</td><td></td><td>378.6</td><td></td><td></td><td>431.4</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>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>379.1</td><td></td><td></td><td>$</td><td>455.0</td><td></td><td></td><td></td></tr></table>
|
table
|
0.1
|
monetaryItemType
|
table: <entity> 0.1 </entity> <entity type> monetaryItemType </entity type> <context> Other Regulatory Assets Pending Final Regulatory Approval | 0.1 | — </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>OPCo</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>0.4</td><td></td><td></td><td>—</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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>0.1</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>0.1</td><td></td><td></td><td>23.6</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 Pending Final Regulatory Approval</td><td></td><td>0.5</td><td></td><td></td><td>23.6</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 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>Ohio Basic Transmission Cost Rider</td><td></td><td>26.1</td><td></td><td></td><td>42.2</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Decoupling</td><td></td><td>—</td><td></td><td></td><td>1.8</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></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>26.1</td><td></td><td></td><td>44.0</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>Pension and OPEB Funded Status</td><td></td><td>134.0</td><td></td><td></td><td>147.1</td><td></td><td></td><td>12 years</td></tr><tr><td>OVEC Purchased Power</td><td></td><td>52.0</td><td></td><td></td><td>50.1</td><td></td><td></td><td>2 years</td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>47.6</td><td></td><td></td><td>50.8</td><td></td><td></td><td>8 years</td></tr><tr><td>Smart Grid Costs</td><td></td><td>33.8</td><td></td><td></td><td>26.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Storm-Related Costs</td><td></td><td>28.6</td><td></td><td></td><td>30.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Enhanced Service Reliability Plan</td><td></td><td>26.2</td><td></td><td></td><td>35.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Bad Debt Rider</td><td></td><td>13.7</td><td></td><td></td><td>0.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Investment Rider</td><td></td><td>11.0</td><td></td><td></td><td>35.3</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>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>352.5</td><td></td><td></td><td>387.4</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>Total Regulatory Assets Approved for Recovery</td><td></td><td>378.6</td><td></td><td></td><td>431.4</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>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>379.1</td><td></td><td></td><td>$</td><td>455.0</td><td></td><td></td><td></td></tr></table>
|
table
|
23.6
|
monetaryItemType
|
table: <entity> 23.6 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Assets Pending Final Regulatory Approval | 0.1 | 23.6 </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>OPCo</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>0.4</td><td></td><td></td><td>—</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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>0.1</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>0.1</td><td></td><td></td><td>23.6</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 Pending Final Regulatory Approval</td><td></td><td>0.5</td><td></td><td></td><td>23.6</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 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>Ohio Basic Transmission Cost Rider</td><td></td><td>26.1</td><td></td><td></td><td>42.2</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Decoupling</td><td></td><td>—</td><td></td><td></td><td>1.8</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></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>26.1</td><td></td><td></td><td>44.0</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>Pension and OPEB Funded Status</td><td></td><td>134.0</td><td></td><td></td><td>147.1</td><td></td><td></td><td>12 years</td></tr><tr><td>OVEC Purchased Power</td><td></td><td>52.0</td><td></td><td></td><td>50.1</td><td></td><td></td><td>2 years</td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>47.6</td><td></td><td></td><td>50.8</td><td></td><td></td><td>8 years</td></tr><tr><td>Smart Grid Costs</td><td></td><td>33.8</td><td></td><td></td><td>26.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Storm-Related Costs</td><td></td><td>28.6</td><td></td><td></td><td>30.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Enhanced Service Reliability Plan</td><td></td><td>26.2</td><td></td><td></td><td>35.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Bad Debt Rider</td><td></td><td>13.7</td><td></td><td></td><td>0.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Investment Rider</td><td></td><td>11.0</td><td></td><td></td><td>35.3</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>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>352.5</td><td></td><td></td><td>387.4</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>Total Regulatory Assets Approved for Recovery</td><td></td><td>378.6</td><td></td><td></td><td>431.4</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>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>379.1</td><td></td><td></td><td>$</td><td>455.0</td><td></td><td></td><td></td></tr></table>
|
table
|
0.5
|
monetaryItemType
|
table: <entity> 0.5 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Assets Pending Final Regulatory Approval | 0.5 | 23.6 </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>OPCo</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>0.4</td><td></td><td></td><td>—</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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>0.1</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>0.1</td><td></td><td></td><td>23.6</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 Pending Final Regulatory Approval</td><td></td><td>0.5</td><td></td><td></td><td>23.6</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 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>Ohio Basic Transmission Cost Rider</td><td></td><td>26.1</td><td></td><td></td><td>42.2</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Decoupling</td><td></td><td>—</td><td></td><td></td><td>1.8</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></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>26.1</td><td></td><td></td><td>44.0</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>Pension and OPEB Funded Status</td><td></td><td>134.0</td><td></td><td></td><td>147.1</td><td></td><td></td><td>12 years</td></tr><tr><td>OVEC Purchased Power</td><td></td><td>52.0</td><td></td><td></td><td>50.1</td><td></td><td></td><td>2 years</td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>47.6</td><td></td><td></td><td>50.8</td><td></td><td></td><td>8 years</td></tr><tr><td>Smart Grid Costs</td><td></td><td>33.8</td><td></td><td></td><td>26.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Storm-Related Costs</td><td></td><td>28.6</td><td></td><td></td><td>30.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Enhanced Service Reliability Plan</td><td></td><td>26.2</td><td></td><td></td><td>35.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Bad Debt Rider</td><td></td><td>13.7</td><td></td><td></td><td>0.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Investment Rider</td><td></td><td>11.0</td><td></td><td></td><td>35.3</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>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>352.5</td><td></td><td></td><td>387.4</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>Total Regulatory Assets Approved for Recovery</td><td></td><td>378.6</td><td></td><td></td><td>431.4</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>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>379.1</td><td></td><td></td><td>$</td><td>455.0</td><td></td><td></td><td></td></tr></table>
|
table
|
26.1
|
monetaryItemType
|
table: <entity> 26.1 </entity> <entity type> monetaryItemType </entity type> <context> Ohio Basic Transmission Cost Rider | 26.1 | 42.2 | 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>OPCo</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>0.4</td><td></td><td></td><td>—</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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>0.1</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>0.1</td><td></td><td></td><td>23.6</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 Pending Final Regulatory Approval</td><td></td><td>0.5</td><td></td><td></td><td>23.6</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 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>Ohio Basic Transmission Cost Rider</td><td></td><td>26.1</td><td></td><td></td><td>42.2</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Decoupling</td><td></td><td>—</td><td></td><td></td><td>1.8</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></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>26.1</td><td></td><td></td><td>44.0</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>Pension and OPEB Funded Status</td><td></td><td>134.0</td><td></td><td></td><td>147.1</td><td></td><td></td><td>12 years</td></tr><tr><td>OVEC Purchased Power</td><td></td><td>52.0</td><td></td><td></td><td>50.1</td><td></td><td></td><td>2 years</td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>47.6</td><td></td><td></td><td>50.8</td><td></td><td></td><td>8 years</td></tr><tr><td>Smart Grid Costs</td><td></td><td>33.8</td><td></td><td></td><td>26.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Storm-Related Costs</td><td></td><td>28.6</td><td></td><td></td><td>30.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Enhanced Service Reliability Plan</td><td></td><td>26.2</td><td></td><td></td><td>35.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Bad Debt Rider</td><td></td><td>13.7</td><td></td><td></td><td>0.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Investment Rider</td><td></td><td>11.0</td><td></td><td></td><td>35.3</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>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>352.5</td><td></td><td></td><td>387.4</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>Total Regulatory Assets Approved for Recovery</td><td></td><td>378.6</td><td></td><td></td><td>431.4</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>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>379.1</td><td></td><td></td><td>$</td><td>455.0</td><td></td><td></td><td></td></tr></table>
|
table
|
42.2
|
monetaryItemType
|
table: <entity> 42.2 </entity> <entity type> monetaryItemType </entity type> <context> Ohio Basic Transmission Cost Rider | 26.1 | 42.2 | 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>OPCo</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>0.4</td><td></td><td></td><td>—</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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>0.1</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>0.1</td><td></td><td></td><td>23.6</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 Pending Final Regulatory Approval</td><td></td><td>0.5</td><td></td><td></td><td>23.6</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 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>Ohio Basic Transmission Cost Rider</td><td></td><td>26.1</td><td></td><td></td><td>42.2</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Decoupling</td><td></td><td>—</td><td></td><td></td><td>1.8</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></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>26.1</td><td></td><td></td><td>44.0</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>Pension and OPEB Funded Status</td><td></td><td>134.0</td><td></td><td></td><td>147.1</td><td></td><td></td><td>12 years</td></tr><tr><td>OVEC Purchased Power</td><td></td><td>52.0</td><td></td><td></td><td>50.1</td><td></td><td></td><td>2 years</td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>47.6</td><td></td><td></td><td>50.8</td><td></td><td></td><td>8 years</td></tr><tr><td>Smart Grid Costs</td><td></td><td>33.8</td><td></td><td></td><td>26.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Storm-Related Costs</td><td></td><td>28.6</td><td></td><td></td><td>30.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Enhanced Service Reliability Plan</td><td></td><td>26.2</td><td></td><td></td><td>35.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Bad Debt Rider</td><td></td><td>13.7</td><td></td><td></td><td>0.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Investment Rider</td><td></td><td>11.0</td><td></td><td></td><td>35.3</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>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>352.5</td><td></td><td></td><td>387.4</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>Total Regulatory Assets Approved for Recovery</td><td></td><td>378.6</td><td></td><td></td><td>431.4</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>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>379.1</td><td></td><td></td><td>$</td><td>455.0</td><td></td><td></td><td></td></tr></table>
|
table
|
1.8
|
monetaryItemType
|
table: <entity> 1.8 </entity> <entity type> monetaryItemType </entity type> <context> Ohio Distribution Decoupling | — | 1.8 </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>OPCo</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>0.4</td><td></td><td></td><td>—</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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>0.1</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>0.1</td><td></td><td></td><td>23.6</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 Pending Final Regulatory Approval</td><td></td><td>0.5</td><td></td><td></td><td>23.6</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 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>Ohio Basic Transmission Cost Rider</td><td></td><td>26.1</td><td></td><td></td><td>42.2</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Decoupling</td><td></td><td>—</td><td></td><td></td><td>1.8</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></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>26.1</td><td></td><td></td><td>44.0</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>Pension and OPEB Funded Status</td><td></td><td>134.0</td><td></td><td></td><td>147.1</td><td></td><td></td><td>12 years</td></tr><tr><td>OVEC Purchased Power</td><td></td><td>52.0</td><td></td><td></td><td>50.1</td><td></td><td></td><td>2 years</td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>47.6</td><td></td><td></td><td>50.8</td><td></td><td></td><td>8 years</td></tr><tr><td>Smart Grid Costs</td><td></td><td>33.8</td><td></td><td></td><td>26.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Storm-Related Costs</td><td></td><td>28.6</td><td></td><td></td><td>30.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Enhanced Service Reliability Plan</td><td></td><td>26.2</td><td></td><td></td><td>35.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Bad Debt Rider</td><td></td><td>13.7</td><td></td><td></td><td>0.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Investment Rider</td><td></td><td>11.0</td><td></td><td></td><td>35.3</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>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>352.5</td><td></td><td></td><td>387.4</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>Total Regulatory Assets Approved for Recovery</td><td></td><td>378.6</td><td></td><td></td><td>431.4</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>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>379.1</td><td></td><td></td><td>$</td><td>455.0</td><td></td><td></td><td></td></tr></table>
|
table
|
44.0
|
monetaryItemType
|
table: <entity> 44.0 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Assets Currently Earning a Return | 26.1 | 44.0 </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>OPCo</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>0.4</td><td></td><td></td><td>—</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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>0.1</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>0.1</td><td></td><td></td><td>23.6</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 Pending Final Regulatory Approval</td><td></td><td>0.5</td><td></td><td></td><td>23.6</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 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>Ohio Basic Transmission Cost Rider</td><td></td><td>26.1</td><td></td><td></td><td>42.2</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Decoupling</td><td></td><td>—</td><td></td><td></td><td>1.8</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></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>26.1</td><td></td><td></td><td>44.0</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>Pension and OPEB Funded Status</td><td></td><td>134.0</td><td></td><td></td><td>147.1</td><td></td><td></td><td>12 years</td></tr><tr><td>OVEC Purchased Power</td><td></td><td>52.0</td><td></td><td></td><td>50.1</td><td></td><td></td><td>2 years</td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>47.6</td><td></td><td></td><td>50.8</td><td></td><td></td><td>8 years</td></tr><tr><td>Smart Grid Costs</td><td></td><td>33.8</td><td></td><td></td><td>26.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Storm-Related Costs</td><td></td><td>28.6</td><td></td><td></td><td>30.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Enhanced Service Reliability Plan</td><td></td><td>26.2</td><td></td><td></td><td>35.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Bad Debt Rider</td><td></td><td>13.7</td><td></td><td></td><td>0.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Investment Rider</td><td></td><td>11.0</td><td></td><td></td><td>35.3</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>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>352.5</td><td></td><td></td><td>387.4</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>Total Regulatory Assets Approved for Recovery</td><td></td><td>378.6</td><td></td><td></td><td>431.4</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>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>379.1</td><td></td><td></td><td>$</td><td>455.0</td><td></td><td></td><td></td></tr></table>
|
table
|
134.0
|
monetaryItemType
|
table: <entity> 134.0 </entity> <entity type> monetaryItemType </entity type> <context> Pension and OPEB Funded Status | 134.0 | 147.1 | 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>OPCo</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>0.4</td><td></td><td></td><td>—</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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>0.1</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>0.1</td><td></td><td></td><td>23.6</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 Pending Final Regulatory Approval</td><td></td><td>0.5</td><td></td><td></td><td>23.6</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 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>Ohio Basic Transmission Cost Rider</td><td></td><td>26.1</td><td></td><td></td><td>42.2</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Decoupling</td><td></td><td>—</td><td></td><td></td><td>1.8</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></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>26.1</td><td></td><td></td><td>44.0</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>Pension and OPEB Funded Status</td><td></td><td>134.0</td><td></td><td></td><td>147.1</td><td></td><td></td><td>12 years</td></tr><tr><td>OVEC Purchased Power</td><td></td><td>52.0</td><td></td><td></td><td>50.1</td><td></td><td></td><td>2 years</td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>47.6</td><td></td><td></td><td>50.8</td><td></td><td></td><td>8 years</td></tr><tr><td>Smart Grid Costs</td><td></td><td>33.8</td><td></td><td></td><td>26.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Storm-Related Costs</td><td></td><td>28.6</td><td></td><td></td><td>30.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Enhanced Service Reliability Plan</td><td></td><td>26.2</td><td></td><td></td><td>35.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Bad Debt Rider</td><td></td><td>13.7</td><td></td><td></td><td>0.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Investment Rider</td><td></td><td>11.0</td><td></td><td></td><td>35.3</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>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>352.5</td><td></td><td></td><td>387.4</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>Total Regulatory Assets Approved for Recovery</td><td></td><td>378.6</td><td></td><td></td><td>431.4</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>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>379.1</td><td></td><td></td><td>$</td><td>455.0</td><td></td><td></td><td></td></tr></table>
|
table
|
147.1
|
monetaryItemType
|
table: <entity> 147.1 </entity> <entity type> monetaryItemType </entity type> <context> Pension and OPEB Funded Status | 134.0 | 147.1 | 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>OPCo</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>0.4</td><td></td><td></td><td>—</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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>0.1</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>0.1</td><td></td><td></td><td>23.6</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 Pending Final Regulatory Approval</td><td></td><td>0.5</td><td></td><td></td><td>23.6</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 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>Ohio Basic Transmission Cost Rider</td><td></td><td>26.1</td><td></td><td></td><td>42.2</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Decoupling</td><td></td><td>—</td><td></td><td></td><td>1.8</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></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>26.1</td><td></td><td></td><td>44.0</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>Pension and OPEB Funded Status</td><td></td><td>134.0</td><td></td><td></td><td>147.1</td><td></td><td></td><td>12 years</td></tr><tr><td>OVEC Purchased Power</td><td></td><td>52.0</td><td></td><td></td><td>50.1</td><td></td><td></td><td>2 years</td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>47.6</td><td></td><td></td><td>50.8</td><td></td><td></td><td>8 years</td></tr><tr><td>Smart Grid Costs</td><td></td><td>33.8</td><td></td><td></td><td>26.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Storm-Related Costs</td><td></td><td>28.6</td><td></td><td></td><td>30.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Enhanced Service Reliability Plan</td><td></td><td>26.2</td><td></td><td></td><td>35.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Bad Debt Rider</td><td></td><td>13.7</td><td></td><td></td><td>0.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Investment Rider</td><td></td><td>11.0</td><td></td><td></td><td>35.3</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>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>352.5</td><td></td><td></td><td>387.4</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>Total Regulatory Assets Approved for Recovery</td><td></td><td>378.6</td><td></td><td></td><td>431.4</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>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>379.1</td><td></td><td></td><td>$</td><td>455.0</td><td></td><td></td><td></td></tr></table>
|
table
|
52.0
|
monetaryItemType
|
table: <entity> 52.0 </entity> <entity type> monetaryItemType </entity type> <context> OVEC Purchased Power | 52.0 | 50.1 | 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>OPCo</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>0.4</td><td></td><td></td><td>—</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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>0.1</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>0.1</td><td></td><td></td><td>23.6</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 Pending Final Regulatory Approval</td><td></td><td>0.5</td><td></td><td></td><td>23.6</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 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>Ohio Basic Transmission Cost Rider</td><td></td><td>26.1</td><td></td><td></td><td>42.2</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Decoupling</td><td></td><td>—</td><td></td><td></td><td>1.8</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></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>26.1</td><td></td><td></td><td>44.0</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>Pension and OPEB Funded Status</td><td></td><td>134.0</td><td></td><td></td><td>147.1</td><td></td><td></td><td>12 years</td></tr><tr><td>OVEC Purchased Power</td><td></td><td>52.0</td><td></td><td></td><td>50.1</td><td></td><td></td><td>2 years</td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>47.6</td><td></td><td></td><td>50.8</td><td></td><td></td><td>8 years</td></tr><tr><td>Smart Grid Costs</td><td></td><td>33.8</td><td></td><td></td><td>26.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Storm-Related Costs</td><td></td><td>28.6</td><td></td><td></td><td>30.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Enhanced Service Reliability Plan</td><td></td><td>26.2</td><td></td><td></td><td>35.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Bad Debt Rider</td><td></td><td>13.7</td><td></td><td></td><td>0.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Investment Rider</td><td></td><td>11.0</td><td></td><td></td><td>35.3</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>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>352.5</td><td></td><td></td><td>387.4</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>Total Regulatory Assets Approved for Recovery</td><td></td><td>378.6</td><td></td><td></td><td>431.4</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>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>379.1</td><td></td><td></td><td>$</td><td>455.0</td><td></td><td></td><td></td></tr></table>
|
table
|
50.1
|
monetaryItemType
|
table: <entity> 50.1 </entity> <entity type> monetaryItemType </entity type> <context> OVEC Purchased Power | 52.0 | 50.1 | 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>OPCo</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>0.4</td><td></td><td></td><td>—</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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>0.1</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>0.1</td><td></td><td></td><td>23.6</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 Pending Final Regulatory Approval</td><td></td><td>0.5</td><td></td><td></td><td>23.6</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 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>Ohio Basic Transmission Cost Rider</td><td></td><td>26.1</td><td></td><td></td><td>42.2</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Decoupling</td><td></td><td>—</td><td></td><td></td><td>1.8</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></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>26.1</td><td></td><td></td><td>44.0</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>Pension and OPEB Funded Status</td><td></td><td>134.0</td><td></td><td></td><td>147.1</td><td></td><td></td><td>12 years</td></tr><tr><td>OVEC Purchased Power</td><td></td><td>52.0</td><td></td><td></td><td>50.1</td><td></td><td></td><td>2 years</td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>47.6</td><td></td><td></td><td>50.8</td><td></td><td></td><td>8 years</td></tr><tr><td>Smart Grid Costs</td><td></td><td>33.8</td><td></td><td></td><td>26.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Storm-Related Costs</td><td></td><td>28.6</td><td></td><td></td><td>30.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Enhanced Service Reliability Plan</td><td></td><td>26.2</td><td></td><td></td><td>35.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Bad Debt Rider</td><td></td><td>13.7</td><td></td><td></td><td>0.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Investment Rider</td><td></td><td>11.0</td><td></td><td></td><td>35.3</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>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>352.5</td><td></td><td></td><td>387.4</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>Total Regulatory Assets Approved for Recovery</td><td></td><td>378.6</td><td></td><td></td><td>431.4</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>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>379.1</td><td></td><td></td><td>$</td><td>455.0</td><td></td><td></td><td></td></tr></table>
|
table
|
47.6
|
monetaryItemType
|
table: <entity> 47.6 </entity> <entity type> monetaryItemType </entity type> <context> Unrealized Loss on Forward Commitments | 47.6 | 50.8 | 8 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>OPCo</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>0.4</td><td></td><td></td><td>—</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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>0.1</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>0.1</td><td></td><td></td><td>23.6</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 Pending Final Regulatory Approval</td><td></td><td>0.5</td><td></td><td></td><td>23.6</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 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>Ohio Basic Transmission Cost Rider</td><td></td><td>26.1</td><td></td><td></td><td>42.2</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Decoupling</td><td></td><td>—</td><td></td><td></td><td>1.8</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></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>26.1</td><td></td><td></td><td>44.0</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>Pension and OPEB Funded Status</td><td></td><td>134.0</td><td></td><td></td><td>147.1</td><td></td><td></td><td>12 years</td></tr><tr><td>OVEC Purchased Power</td><td></td><td>52.0</td><td></td><td></td><td>50.1</td><td></td><td></td><td>2 years</td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>47.6</td><td></td><td></td><td>50.8</td><td></td><td></td><td>8 years</td></tr><tr><td>Smart Grid Costs</td><td></td><td>33.8</td><td></td><td></td><td>26.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Storm-Related Costs</td><td></td><td>28.6</td><td></td><td></td><td>30.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Enhanced Service Reliability Plan</td><td></td><td>26.2</td><td></td><td></td><td>35.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Bad Debt Rider</td><td></td><td>13.7</td><td></td><td></td><td>0.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Investment Rider</td><td></td><td>11.0</td><td></td><td></td><td>35.3</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>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>352.5</td><td></td><td></td><td>387.4</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>Total Regulatory Assets Approved for Recovery</td><td></td><td>378.6</td><td></td><td></td><td>431.4</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>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>379.1</td><td></td><td></td><td>$</td><td>455.0</td><td></td><td></td><td></td></tr></table>
|
table
|
50.8
|
monetaryItemType
|
table: <entity> 50.8 </entity> <entity type> monetaryItemType </entity type> <context> Unrealized Loss on Forward Commitments | 47.6 | 50.8 | 8 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>OPCo</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>0.4</td><td></td><td></td><td>—</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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>0.1</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>0.1</td><td></td><td></td><td>23.6</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 Pending Final Regulatory Approval</td><td></td><td>0.5</td><td></td><td></td><td>23.6</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 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>Ohio Basic Transmission Cost Rider</td><td></td><td>26.1</td><td></td><td></td><td>42.2</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Decoupling</td><td></td><td>—</td><td></td><td></td><td>1.8</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></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>26.1</td><td></td><td></td><td>44.0</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>Pension and OPEB Funded Status</td><td></td><td>134.0</td><td></td><td></td><td>147.1</td><td></td><td></td><td>12 years</td></tr><tr><td>OVEC Purchased Power</td><td></td><td>52.0</td><td></td><td></td><td>50.1</td><td></td><td></td><td>2 years</td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>47.6</td><td></td><td></td><td>50.8</td><td></td><td></td><td>8 years</td></tr><tr><td>Smart Grid Costs</td><td></td><td>33.8</td><td></td><td></td><td>26.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Storm-Related Costs</td><td></td><td>28.6</td><td></td><td></td><td>30.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Enhanced Service Reliability Plan</td><td></td><td>26.2</td><td></td><td></td><td>35.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Bad Debt Rider</td><td></td><td>13.7</td><td></td><td></td><td>0.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Investment Rider</td><td></td><td>11.0</td><td></td><td></td><td>35.3</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>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>352.5</td><td></td><td></td><td>387.4</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>Total Regulatory Assets Approved for Recovery</td><td></td><td>378.6</td><td></td><td></td><td>431.4</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>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>379.1</td><td></td><td></td><td>$</td><td>455.0</td><td></td><td></td><td></td></tr></table>
|
table
|
33.8
|
monetaryItemType
|
table: <entity> 33.8 </entity> <entity type> monetaryItemType </entity type> <context> Smart Grid Costs | 33.8 | 26.3 | 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>OPCo</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>0.4</td><td></td><td></td><td>—</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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>0.1</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>0.1</td><td></td><td></td><td>23.6</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 Pending Final Regulatory Approval</td><td></td><td>0.5</td><td></td><td></td><td>23.6</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 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>Ohio Basic Transmission Cost Rider</td><td></td><td>26.1</td><td></td><td></td><td>42.2</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Decoupling</td><td></td><td>—</td><td></td><td></td><td>1.8</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></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>26.1</td><td></td><td></td><td>44.0</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>Pension and OPEB Funded Status</td><td></td><td>134.0</td><td></td><td></td><td>147.1</td><td></td><td></td><td>12 years</td></tr><tr><td>OVEC Purchased Power</td><td></td><td>52.0</td><td></td><td></td><td>50.1</td><td></td><td></td><td>2 years</td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>47.6</td><td></td><td></td><td>50.8</td><td></td><td></td><td>8 years</td></tr><tr><td>Smart Grid Costs</td><td></td><td>33.8</td><td></td><td></td><td>26.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Storm-Related Costs</td><td></td><td>28.6</td><td></td><td></td><td>30.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Enhanced Service Reliability Plan</td><td></td><td>26.2</td><td></td><td></td><td>35.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Bad Debt Rider</td><td></td><td>13.7</td><td></td><td></td><td>0.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Investment Rider</td><td></td><td>11.0</td><td></td><td></td><td>35.3</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>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>352.5</td><td></td><td></td><td>387.4</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>Total Regulatory Assets Approved for Recovery</td><td></td><td>378.6</td><td></td><td></td><td>431.4</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>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>379.1</td><td></td><td></td><td>$</td><td>455.0</td><td></td><td></td><td></td></tr></table>
|
table
|
26.3
|
monetaryItemType
|
table: <entity> 26.3 </entity> <entity type> monetaryItemType </entity type> <context> Smart Grid Costs | 33.8 | 26.3 | 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>OPCo</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>0.4</td><td></td><td></td><td>—</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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>0.1</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>0.1</td><td></td><td></td><td>23.6</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 Pending Final Regulatory Approval</td><td></td><td>0.5</td><td></td><td></td><td>23.6</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 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>Ohio Basic Transmission Cost Rider</td><td></td><td>26.1</td><td></td><td></td><td>42.2</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Decoupling</td><td></td><td>—</td><td></td><td></td><td>1.8</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></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>26.1</td><td></td><td></td><td>44.0</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>Pension and OPEB Funded Status</td><td></td><td>134.0</td><td></td><td></td><td>147.1</td><td></td><td></td><td>12 years</td></tr><tr><td>OVEC Purchased Power</td><td></td><td>52.0</td><td></td><td></td><td>50.1</td><td></td><td></td><td>2 years</td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>47.6</td><td></td><td></td><td>50.8</td><td></td><td></td><td>8 years</td></tr><tr><td>Smart Grid Costs</td><td></td><td>33.8</td><td></td><td></td><td>26.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Storm-Related Costs</td><td></td><td>28.6</td><td></td><td></td><td>30.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Enhanced Service Reliability Plan</td><td></td><td>26.2</td><td></td><td></td><td>35.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Bad Debt Rider</td><td></td><td>13.7</td><td></td><td></td><td>0.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Investment Rider</td><td></td><td>11.0</td><td></td><td></td><td>35.3</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>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>352.5</td><td></td><td></td><td>387.4</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>Total Regulatory Assets Approved for Recovery</td><td></td><td>378.6</td><td></td><td></td><td>431.4</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>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>379.1</td><td></td><td></td><td>$</td><td>455.0</td><td></td><td></td><td></td></tr></table>
|
table
|
28.6
|
monetaryItemType
|
table: <entity> 28.6 </entity> <entity type> monetaryItemType </entity type> <context> Storm-Related Costs | 28.6 | 30.9 | 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>OPCo</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>0.4</td><td></td><td></td><td>—</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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>0.1</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>0.1</td><td></td><td></td><td>23.6</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 Pending Final Regulatory Approval</td><td></td><td>0.5</td><td></td><td></td><td>23.6</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 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>Ohio Basic Transmission Cost Rider</td><td></td><td>26.1</td><td></td><td></td><td>42.2</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Decoupling</td><td></td><td>—</td><td></td><td></td><td>1.8</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></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>26.1</td><td></td><td></td><td>44.0</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>Pension and OPEB Funded Status</td><td></td><td>134.0</td><td></td><td></td><td>147.1</td><td></td><td></td><td>12 years</td></tr><tr><td>OVEC Purchased Power</td><td></td><td>52.0</td><td></td><td></td><td>50.1</td><td></td><td></td><td>2 years</td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>47.6</td><td></td><td></td><td>50.8</td><td></td><td></td><td>8 years</td></tr><tr><td>Smart Grid Costs</td><td></td><td>33.8</td><td></td><td></td><td>26.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Storm-Related Costs</td><td></td><td>28.6</td><td></td><td></td><td>30.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Enhanced Service Reliability Plan</td><td></td><td>26.2</td><td></td><td></td><td>35.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Bad Debt Rider</td><td></td><td>13.7</td><td></td><td></td><td>0.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Investment Rider</td><td></td><td>11.0</td><td></td><td></td><td>35.3</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>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>352.5</td><td></td><td></td><td>387.4</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>Total Regulatory Assets Approved for Recovery</td><td></td><td>378.6</td><td></td><td></td><td>431.4</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>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>379.1</td><td></td><td></td><td>$</td><td>455.0</td><td></td><td></td><td></td></tr></table>
|
table
|
30.9
|
monetaryItemType
|
table: <entity> 30.9 </entity> <entity type> monetaryItemType </entity type> <context> Storm-Related Costs | 28.6 | 30.9 | 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>OPCo</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>0.4</td><td></td><td></td><td>—</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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>0.1</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>0.1</td><td></td><td></td><td>23.6</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 Pending Final Regulatory Approval</td><td></td><td>0.5</td><td></td><td></td><td>23.6</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 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>Ohio Basic Transmission Cost Rider</td><td></td><td>26.1</td><td></td><td></td><td>42.2</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Decoupling</td><td></td><td>—</td><td></td><td></td><td>1.8</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></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>26.1</td><td></td><td></td><td>44.0</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>Pension and OPEB Funded Status</td><td></td><td>134.0</td><td></td><td></td><td>147.1</td><td></td><td></td><td>12 years</td></tr><tr><td>OVEC Purchased Power</td><td></td><td>52.0</td><td></td><td></td><td>50.1</td><td></td><td></td><td>2 years</td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>47.6</td><td></td><td></td><td>50.8</td><td></td><td></td><td>8 years</td></tr><tr><td>Smart Grid Costs</td><td></td><td>33.8</td><td></td><td></td><td>26.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Storm-Related Costs</td><td></td><td>28.6</td><td></td><td></td><td>30.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Enhanced Service Reliability Plan</td><td></td><td>26.2</td><td></td><td></td><td>35.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Bad Debt Rider</td><td></td><td>13.7</td><td></td><td></td><td>0.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Investment Rider</td><td></td><td>11.0</td><td></td><td></td><td>35.3</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>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>352.5</td><td></td><td></td><td>387.4</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>Total Regulatory Assets Approved for Recovery</td><td></td><td>378.6</td><td></td><td></td><td>431.4</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>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>379.1</td><td></td><td></td><td>$</td><td>455.0</td><td></td><td></td><td></td></tr></table>
|
table
|
26.2
|
monetaryItemType
|
table: <entity> 26.2 </entity> <entity type> monetaryItemType </entity type> <context> Ohio Enhanced Service Reliability Plan | 26.2 | 35.3 | 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>OPCo</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>0.4</td><td></td><td></td><td>—</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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>0.1</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>0.1</td><td></td><td></td><td>23.6</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 Pending Final Regulatory Approval</td><td></td><td>0.5</td><td></td><td></td><td>23.6</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 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>Ohio Basic Transmission Cost Rider</td><td></td><td>26.1</td><td></td><td></td><td>42.2</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Decoupling</td><td></td><td>—</td><td></td><td></td><td>1.8</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></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>26.1</td><td></td><td></td><td>44.0</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>Pension and OPEB Funded Status</td><td></td><td>134.0</td><td></td><td></td><td>147.1</td><td></td><td></td><td>12 years</td></tr><tr><td>OVEC Purchased Power</td><td></td><td>52.0</td><td></td><td></td><td>50.1</td><td></td><td></td><td>2 years</td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>47.6</td><td></td><td></td><td>50.8</td><td></td><td></td><td>8 years</td></tr><tr><td>Smart Grid Costs</td><td></td><td>33.8</td><td></td><td></td><td>26.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Storm-Related Costs</td><td></td><td>28.6</td><td></td><td></td><td>30.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Enhanced Service Reliability Plan</td><td></td><td>26.2</td><td></td><td></td><td>35.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Bad Debt Rider</td><td></td><td>13.7</td><td></td><td></td><td>0.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Investment Rider</td><td></td><td>11.0</td><td></td><td></td><td>35.3</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>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>352.5</td><td></td><td></td><td>387.4</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>Total Regulatory Assets Approved for Recovery</td><td></td><td>378.6</td><td></td><td></td><td>431.4</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>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>379.1</td><td></td><td></td><td>$</td><td>455.0</td><td></td><td></td><td></td></tr></table>
|
table
|
35.3
|
monetaryItemType
|
table: <entity> 35.3 </entity> <entity type> monetaryItemType </entity type> <context> Ohio Enhanced Service Reliability Plan | 26.2 | 35.3 | 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>OPCo</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>0.4</td><td></td><td></td><td>—</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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>0.1</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>0.1</td><td></td><td></td><td>23.6</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 Pending Final Regulatory Approval</td><td></td><td>0.5</td><td></td><td></td><td>23.6</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 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>Ohio Basic Transmission Cost Rider</td><td></td><td>26.1</td><td></td><td></td><td>42.2</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Decoupling</td><td></td><td>—</td><td></td><td></td><td>1.8</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></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>26.1</td><td></td><td></td><td>44.0</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>Pension and OPEB Funded Status</td><td></td><td>134.0</td><td></td><td></td><td>147.1</td><td></td><td></td><td>12 years</td></tr><tr><td>OVEC Purchased Power</td><td></td><td>52.0</td><td></td><td></td><td>50.1</td><td></td><td></td><td>2 years</td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>47.6</td><td></td><td></td><td>50.8</td><td></td><td></td><td>8 years</td></tr><tr><td>Smart Grid Costs</td><td></td><td>33.8</td><td></td><td></td><td>26.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Storm-Related Costs</td><td></td><td>28.6</td><td></td><td></td><td>30.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Enhanced Service Reliability Plan</td><td></td><td>26.2</td><td></td><td></td><td>35.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Bad Debt Rider</td><td></td><td>13.7</td><td></td><td></td><td>0.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Investment Rider</td><td></td><td>11.0</td><td></td><td></td><td>35.3</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>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>352.5</td><td></td><td></td><td>387.4</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>Total Regulatory Assets Approved for Recovery</td><td></td><td>378.6</td><td></td><td></td><td>431.4</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>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>379.1</td><td></td><td></td><td>$</td><td>455.0</td><td></td><td></td><td></td></tr></table>
|
table
|
13.7
|
monetaryItemType
|
table: <entity> 13.7 </entity> <entity type> monetaryItemType </entity type> <context> Bad Debt Rider | 13.7 | 0.7 | 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>OPCo</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>0.4</td><td></td><td></td><td>—</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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>0.1</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>0.1</td><td></td><td></td><td>23.6</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 Pending Final Regulatory Approval</td><td></td><td>0.5</td><td></td><td></td><td>23.6</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 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>Ohio Basic Transmission Cost Rider</td><td></td><td>26.1</td><td></td><td></td><td>42.2</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Decoupling</td><td></td><td>—</td><td></td><td></td><td>1.8</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></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>26.1</td><td></td><td></td><td>44.0</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>Pension and OPEB Funded Status</td><td></td><td>134.0</td><td></td><td></td><td>147.1</td><td></td><td></td><td>12 years</td></tr><tr><td>OVEC Purchased Power</td><td></td><td>52.0</td><td></td><td></td><td>50.1</td><td></td><td></td><td>2 years</td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>47.6</td><td></td><td></td><td>50.8</td><td></td><td></td><td>8 years</td></tr><tr><td>Smart Grid Costs</td><td></td><td>33.8</td><td></td><td></td><td>26.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Storm-Related Costs</td><td></td><td>28.6</td><td></td><td></td><td>30.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Enhanced Service Reliability Plan</td><td></td><td>26.2</td><td></td><td></td><td>35.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Bad Debt Rider</td><td></td><td>13.7</td><td></td><td></td><td>0.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Investment Rider</td><td></td><td>11.0</td><td></td><td></td><td>35.3</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>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>352.5</td><td></td><td></td><td>387.4</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>Total Regulatory Assets Approved for Recovery</td><td></td><td>378.6</td><td></td><td></td><td>431.4</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>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>379.1</td><td></td><td></td><td>$</td><td>455.0</td><td></td><td></td><td></td></tr></table>
|
table
|
0.7
|
monetaryItemType
|
table: <entity> 0.7 </entity> <entity type> monetaryItemType </entity type> <context> Bad Debt Rider | 13.7 | 0.7 | 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>OPCo</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>0.4</td><td></td><td></td><td>—</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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>0.1</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>0.1</td><td></td><td></td><td>23.6</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 Pending Final Regulatory Approval</td><td></td><td>0.5</td><td></td><td></td><td>23.6</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 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>Ohio Basic Transmission Cost Rider</td><td></td><td>26.1</td><td></td><td></td><td>42.2</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Decoupling</td><td></td><td>—</td><td></td><td></td><td>1.8</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></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>26.1</td><td></td><td></td><td>44.0</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>Pension and OPEB Funded Status</td><td></td><td>134.0</td><td></td><td></td><td>147.1</td><td></td><td></td><td>12 years</td></tr><tr><td>OVEC Purchased Power</td><td></td><td>52.0</td><td></td><td></td><td>50.1</td><td></td><td></td><td>2 years</td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>47.6</td><td></td><td></td><td>50.8</td><td></td><td></td><td>8 years</td></tr><tr><td>Smart Grid Costs</td><td></td><td>33.8</td><td></td><td></td><td>26.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Storm-Related Costs</td><td></td><td>28.6</td><td></td><td></td><td>30.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Enhanced Service Reliability Plan</td><td></td><td>26.2</td><td></td><td></td><td>35.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Bad Debt Rider</td><td></td><td>13.7</td><td></td><td></td><td>0.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Investment Rider</td><td></td><td>11.0</td><td></td><td></td><td>35.3</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>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>352.5</td><td></td><td></td><td>387.4</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>Total Regulatory Assets Approved for Recovery</td><td></td><td>378.6</td><td></td><td></td><td>431.4</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>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>379.1</td><td></td><td></td><td>$</td><td>455.0</td><td></td><td></td><td></td></tr></table>
|
table
|
11.0
|
monetaryItemType
|
table: <entity> 11.0 </entity> <entity type> monetaryItemType </entity type> <context> Ohio Distribution Investment Rider | 11.0 | 35.3 | 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>OPCo</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>0.4</td><td></td><td></td><td>—</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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>0.1</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>0.1</td><td></td><td></td><td>23.6</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 Pending Final Regulatory Approval</td><td></td><td>0.5</td><td></td><td></td><td>23.6</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 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>Ohio Basic Transmission Cost Rider</td><td></td><td>26.1</td><td></td><td></td><td>42.2</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Decoupling</td><td></td><td>—</td><td></td><td></td><td>1.8</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></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>26.1</td><td></td><td></td><td>44.0</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>Pension and OPEB Funded Status</td><td></td><td>134.0</td><td></td><td></td><td>147.1</td><td></td><td></td><td>12 years</td></tr><tr><td>OVEC Purchased Power</td><td></td><td>52.0</td><td></td><td></td><td>50.1</td><td></td><td></td><td>2 years</td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>47.6</td><td></td><td></td><td>50.8</td><td></td><td></td><td>8 years</td></tr><tr><td>Smart Grid Costs</td><td></td><td>33.8</td><td></td><td></td><td>26.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Storm-Related Costs</td><td></td><td>28.6</td><td></td><td></td><td>30.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Enhanced Service Reliability Plan</td><td></td><td>26.2</td><td></td><td></td><td>35.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Bad Debt Rider</td><td></td><td>13.7</td><td></td><td></td><td>0.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Investment Rider</td><td></td><td>11.0</td><td></td><td></td><td>35.3</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>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>352.5</td><td></td><td></td><td>387.4</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>Total Regulatory Assets Approved for Recovery</td><td></td><td>378.6</td><td></td><td></td><td>431.4</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>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>379.1</td><td></td><td></td><td>$</td><td>455.0</td><td></td><td></td><td></td></tr></table>
|
table
|
5.6
|
monetaryItemType
|
table: <entity> 5.6 </entity> <entity type> monetaryItemType </entity type> <context> Other Regulatory Assets Approved for Recovery | 5.6 | 10.9 | 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>OPCo</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>0.4</td><td></td><td></td><td>—</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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>0.1</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>0.1</td><td></td><td></td><td>23.6</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 Pending Final Regulatory Approval</td><td></td><td>0.5</td><td></td><td></td><td>23.6</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 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>Ohio Basic Transmission Cost Rider</td><td></td><td>26.1</td><td></td><td></td><td>42.2</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Decoupling</td><td></td><td>—</td><td></td><td></td><td>1.8</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></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>26.1</td><td></td><td></td><td>44.0</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>Pension and OPEB Funded Status</td><td></td><td>134.0</td><td></td><td></td><td>147.1</td><td></td><td></td><td>12 years</td></tr><tr><td>OVEC Purchased Power</td><td></td><td>52.0</td><td></td><td></td><td>50.1</td><td></td><td></td><td>2 years</td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>47.6</td><td></td><td></td><td>50.8</td><td></td><td></td><td>8 years</td></tr><tr><td>Smart Grid Costs</td><td></td><td>33.8</td><td></td><td></td><td>26.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Storm-Related Costs</td><td></td><td>28.6</td><td></td><td></td><td>30.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Enhanced Service Reliability Plan</td><td></td><td>26.2</td><td></td><td></td><td>35.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Bad Debt Rider</td><td></td><td>13.7</td><td></td><td></td><td>0.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Investment Rider</td><td></td><td>11.0</td><td></td><td></td><td>35.3</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>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>352.5</td><td></td><td></td><td>387.4</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>Total Regulatory Assets Approved for Recovery</td><td></td><td>378.6</td><td></td><td></td><td>431.4</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>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>379.1</td><td></td><td></td><td>$</td><td>455.0</td><td></td><td></td><td></td></tr></table>
|
table
|
10.9
|
monetaryItemType
|
table: <entity> 10.9 </entity> <entity type> monetaryItemType </entity type> <context> Other Regulatory Assets Approved for Recovery | 5.6 | 10.9 | 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>OPCo</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>0.4</td><td></td><td></td><td>—</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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>0.1</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>0.1</td><td></td><td></td><td>23.6</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 Pending Final Regulatory Approval</td><td></td><td>0.5</td><td></td><td></td><td>23.6</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 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>Ohio Basic Transmission Cost Rider</td><td></td><td>26.1</td><td></td><td></td><td>42.2</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Decoupling</td><td></td><td>—</td><td></td><td></td><td>1.8</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></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>26.1</td><td></td><td></td><td>44.0</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>Pension and OPEB Funded Status</td><td></td><td>134.0</td><td></td><td></td><td>147.1</td><td></td><td></td><td>12 years</td></tr><tr><td>OVEC Purchased Power</td><td></td><td>52.0</td><td></td><td></td><td>50.1</td><td></td><td></td><td>2 years</td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>47.6</td><td></td><td></td><td>50.8</td><td></td><td></td><td>8 years</td></tr><tr><td>Smart Grid Costs</td><td></td><td>33.8</td><td></td><td></td><td>26.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Storm-Related Costs</td><td></td><td>28.6</td><td></td><td></td><td>30.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Enhanced Service Reliability Plan</td><td></td><td>26.2</td><td></td><td></td><td>35.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Bad Debt Rider</td><td></td><td>13.7</td><td></td><td></td><td>0.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Investment Rider</td><td></td><td>11.0</td><td></td><td></td><td>35.3</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>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>352.5</td><td></td><td></td><td>387.4</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>Total Regulatory Assets Approved for Recovery</td><td></td><td>378.6</td><td></td><td></td><td>431.4</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>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>379.1</td><td></td><td></td><td>$</td><td>455.0</td><td></td><td></td><td></td></tr></table>
|
table
|
352.5
|
monetaryItemType
|
table: <entity> 352.5 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Assets Currently Not Earning a Return | 352.5 | 387.4 </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>OPCo</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>0.4</td><td></td><td></td><td>—</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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>0.1</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>0.1</td><td></td><td></td><td>23.6</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 Pending Final Regulatory Approval</td><td></td><td>0.5</td><td></td><td></td><td>23.6</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 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>Ohio Basic Transmission Cost Rider</td><td></td><td>26.1</td><td></td><td></td><td>42.2</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Decoupling</td><td></td><td>—</td><td></td><td></td><td>1.8</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></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>26.1</td><td></td><td></td><td>44.0</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>Pension and OPEB Funded Status</td><td></td><td>134.0</td><td></td><td></td><td>147.1</td><td></td><td></td><td>12 years</td></tr><tr><td>OVEC Purchased Power</td><td></td><td>52.0</td><td></td><td></td><td>50.1</td><td></td><td></td><td>2 years</td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>47.6</td><td></td><td></td><td>50.8</td><td></td><td></td><td>8 years</td></tr><tr><td>Smart Grid Costs</td><td></td><td>33.8</td><td></td><td></td><td>26.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Storm-Related Costs</td><td></td><td>28.6</td><td></td><td></td><td>30.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Enhanced Service Reliability Plan</td><td></td><td>26.2</td><td></td><td></td><td>35.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Bad Debt Rider</td><td></td><td>13.7</td><td></td><td></td><td>0.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Investment Rider</td><td></td><td>11.0</td><td></td><td></td><td>35.3</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>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>352.5</td><td></td><td></td><td>387.4</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>Total Regulatory Assets Approved for Recovery</td><td></td><td>378.6</td><td></td><td></td><td>431.4</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>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>379.1</td><td></td><td></td><td>$</td><td>455.0</td><td></td><td></td><td></td></tr></table>
|
table
|
387.4
|
monetaryItemType
|
table: <entity> 387.4 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Assets Currently Not Earning a Return | 352.5 | 387.4 </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>OPCo</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>0.4</td><td></td><td></td><td>—</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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>0.1</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>0.1</td><td></td><td></td><td>23.6</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 Pending Final Regulatory Approval</td><td></td><td>0.5</td><td></td><td></td><td>23.6</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 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>Ohio Basic Transmission Cost Rider</td><td></td><td>26.1</td><td></td><td></td><td>42.2</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Decoupling</td><td></td><td>—</td><td></td><td></td><td>1.8</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></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>26.1</td><td></td><td></td><td>44.0</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>Pension and OPEB Funded Status</td><td></td><td>134.0</td><td></td><td></td><td>147.1</td><td></td><td></td><td>12 years</td></tr><tr><td>OVEC Purchased Power</td><td></td><td>52.0</td><td></td><td></td><td>50.1</td><td></td><td></td><td>2 years</td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>47.6</td><td></td><td></td><td>50.8</td><td></td><td></td><td>8 years</td></tr><tr><td>Smart Grid Costs</td><td></td><td>33.8</td><td></td><td></td><td>26.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Storm-Related Costs</td><td></td><td>28.6</td><td></td><td></td><td>30.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Enhanced Service Reliability Plan</td><td></td><td>26.2</td><td></td><td></td><td>35.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Bad Debt Rider</td><td></td><td>13.7</td><td></td><td></td><td>0.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Investment Rider</td><td></td><td>11.0</td><td></td><td></td><td>35.3</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>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>352.5</td><td></td><td></td><td>387.4</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>Total Regulatory Assets Approved for Recovery</td><td></td><td>378.6</td><td></td><td></td><td>431.4</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>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>379.1</td><td></td><td></td><td>$</td><td>455.0</td><td></td><td></td><td></td></tr></table>
|
table
|
378.6
|
monetaryItemType
|
table: <entity> 378.6 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Assets Approved for Recovery | 378.6 | 431.4 </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>OPCo</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>0.4</td><td></td><td></td><td>—</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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>0.1</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>0.1</td><td></td><td></td><td>23.6</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 Pending Final Regulatory Approval</td><td></td><td>0.5</td><td></td><td></td><td>23.6</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 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>Ohio Basic Transmission Cost Rider</td><td></td><td>26.1</td><td></td><td></td><td>42.2</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Decoupling</td><td></td><td>—</td><td></td><td></td><td>1.8</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></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>26.1</td><td></td><td></td><td>44.0</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>Pension and OPEB Funded Status</td><td></td><td>134.0</td><td></td><td></td><td>147.1</td><td></td><td></td><td>12 years</td></tr><tr><td>OVEC Purchased Power</td><td></td><td>52.0</td><td></td><td></td><td>50.1</td><td></td><td></td><td>2 years</td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>47.6</td><td></td><td></td><td>50.8</td><td></td><td></td><td>8 years</td></tr><tr><td>Smart Grid Costs</td><td></td><td>33.8</td><td></td><td></td><td>26.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Storm-Related Costs</td><td></td><td>28.6</td><td></td><td></td><td>30.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Enhanced Service Reliability Plan</td><td></td><td>26.2</td><td></td><td></td><td>35.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Bad Debt Rider</td><td></td><td>13.7</td><td></td><td></td><td>0.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Investment Rider</td><td></td><td>11.0</td><td></td><td></td><td>35.3</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>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>352.5</td><td></td><td></td><td>387.4</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>Total Regulatory Assets Approved for Recovery</td><td></td><td>378.6</td><td></td><td></td><td>431.4</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>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>379.1</td><td></td><td></td><td>$</td><td>455.0</td><td></td><td></td><td></td></tr></table>
|
table
|
431.4
|
monetaryItemType
|
table: <entity> 431.4 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Assets Approved for Recovery | 378.6 | 431.4 </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>OPCo</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>0.4</td><td></td><td></td><td>—</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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>0.1</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>0.1</td><td></td><td></td><td>23.6</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 Pending Final Regulatory Approval</td><td></td><td>0.5</td><td></td><td></td><td>23.6</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 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>Ohio Basic Transmission Cost Rider</td><td></td><td>26.1</td><td></td><td></td><td>42.2</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Decoupling</td><td></td><td>—</td><td></td><td></td><td>1.8</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></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>26.1</td><td></td><td></td><td>44.0</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>Pension and OPEB Funded Status</td><td></td><td>134.0</td><td></td><td></td><td>147.1</td><td></td><td></td><td>12 years</td></tr><tr><td>OVEC Purchased Power</td><td></td><td>52.0</td><td></td><td></td><td>50.1</td><td></td><td></td><td>2 years</td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>47.6</td><td></td><td></td><td>50.8</td><td></td><td></td><td>8 years</td></tr><tr><td>Smart Grid Costs</td><td></td><td>33.8</td><td></td><td></td><td>26.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Storm-Related Costs</td><td></td><td>28.6</td><td></td><td></td><td>30.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Enhanced Service Reliability Plan</td><td></td><td>26.2</td><td></td><td></td><td>35.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Bad Debt Rider</td><td></td><td>13.7</td><td></td><td></td><td>0.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Investment Rider</td><td></td><td>11.0</td><td></td><td></td><td>35.3</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>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>352.5</td><td></td><td></td><td>387.4</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>Total Regulatory Assets Approved for Recovery</td><td></td><td>378.6</td><td></td><td></td><td>431.4</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>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>379.1</td><td></td><td></td><td>$</td><td>455.0</td><td></td><td></td><td></td></tr></table>
|
table
|
379.1
|
monetaryItemType
|
table: <entity> 379.1 </entity> <entity type> monetaryItemType </entity type> <context> Total Noncurrent Regulatory Assets | $ | 379.1 | $ | 455.0 </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>OPCo</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>$</td><td>0.4</td><td></td><td></td><td>$</td><td>—</td><td></td><td></td><td></td></tr><tr><td>Total Regulatory Assets Currently Earning a Return</td><td></td><td>0.4</td><td></td><td></td><td>—</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>Other Regulatory Assets Pending Final Regulatory Approval</td><td></td><td>0.1</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>0.1</td><td></td><td></td><td>23.6</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 Pending Final Regulatory Approval</td><td></td><td>0.5</td><td></td><td></td><td>23.6</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 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>Ohio Basic Transmission Cost Rider</td><td></td><td>26.1</td><td></td><td></td><td>42.2</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Decoupling</td><td></td><td>—</td><td></td><td></td><td>1.8</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></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>26.1</td><td></td><td></td><td>44.0</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>Pension and OPEB Funded Status</td><td></td><td>134.0</td><td></td><td></td><td>147.1</td><td></td><td></td><td>12 years</td></tr><tr><td>OVEC Purchased Power</td><td></td><td>52.0</td><td></td><td></td><td>50.1</td><td></td><td></td><td>2 years</td></tr><tr><td>Unrealized Loss on Forward Commitments</td><td></td><td>47.6</td><td></td><td></td><td>50.8</td><td></td><td></td><td>8 years</td></tr><tr><td>Smart Grid Costs</td><td></td><td>33.8</td><td></td><td></td><td>26.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Storm-Related Costs</td><td></td><td>28.6</td><td></td><td></td><td>30.9</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Enhanced Service Reliability Plan</td><td></td><td>26.2</td><td></td><td></td><td>35.3</td><td></td><td></td><td>2 years</td></tr><tr><td>Bad Debt Rider</td><td></td><td>13.7</td><td></td><td></td><td>0.7</td><td></td><td></td><td>2 years</td></tr><tr><td>Ohio Distribution Investment Rider</td><td></td><td>11.0</td><td></td><td></td><td>35.3</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>Other Regulatory Assets Approved for Recovery</td><td></td><td>5.6</td><td></td><td></td><td>10.9</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Assets Currently Not Earning a Return</td><td></td><td>352.5</td><td></td><td></td><td>387.4</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>Total Regulatory Assets Approved for Recovery</td><td></td><td>378.6</td><td></td><td></td><td>431.4</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>Total Noncurrent Regulatory Assets</td><td></td><td>$</td><td>379.1</td><td></td><td></td><td>$</td><td>455.0</td><td></td><td></td><td></td></tr></table>
|
table
|
455.0
|
monetaryItemType
|
table: <entity> 455.0 </entity> <entity type> monetaryItemType </entity type> <context> Total Noncurrent Regulatory Assets | $ | 379.1 | $ | 455.0 </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>OPCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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</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></td><td></td><td></td><td></td><td></td><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 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>$</td><td>72.7</td><td></td><td></td><td>$</td><td>57.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>0.2</td><td></td><td></td><td>0.2</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></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>72.9</td><td></td><td></td><td>57.2</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 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>480.0</td><td></td><td></td><td>475.5</td><td></td><td></td><td>(a)</td></tr><tr><td>Income Taxes, Net (b)</td><td></td><td>367.6</td><td></td><td></td><td>408.2</td><td></td><td></td><td>(c)</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>4.0</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>851.6</td><td></td><td></td><td>883.7</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs</td><td></td><td>32.1</td><td></td><td></td><td>26.1</td><td></td><td></td><td>8 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>22.8</td><td></td><td></td><td>23.2</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>8.3</td><td></td><td></td><td>13.4</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>63.2</td><td></td><td></td><td>62.7</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 Approved for Payment</td><td></td><td>914.8</td><td></td><td></td><td>946.4</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>Total Noncurrent Regulatory Liabilities</td><td></td><td>$</td><td>987.7</td><td></td><td></td><td>$</td><td>1,003.6</td><td></td><td></td><td></td></tr></table>
|
table
|
72.7
|
monetaryItemType
|
table: <entity> 72.7 </entity> <entity type> monetaryItemType </entity type> <context> FERC 2021 Transmission Formula Rate Challenge Refunds | $ | 72.7 | $ | 57.0 </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>OPCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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</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></td><td></td><td></td><td></td><td></td><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 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>$</td><td>72.7</td><td></td><td></td><td>$</td><td>57.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>0.2</td><td></td><td></td><td>0.2</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></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>72.9</td><td></td><td></td><td>57.2</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 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>480.0</td><td></td><td></td><td>475.5</td><td></td><td></td><td>(a)</td></tr><tr><td>Income Taxes, Net (b)</td><td></td><td>367.6</td><td></td><td></td><td>408.2</td><td></td><td></td><td>(c)</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>4.0</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>851.6</td><td></td><td></td><td>883.7</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs</td><td></td><td>32.1</td><td></td><td></td><td>26.1</td><td></td><td></td><td>8 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>22.8</td><td></td><td></td><td>23.2</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>8.3</td><td></td><td></td><td>13.4</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>63.2</td><td></td><td></td><td>62.7</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 Approved for Payment</td><td></td><td>914.8</td><td></td><td></td><td>946.4</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>Total Noncurrent Regulatory Liabilities</td><td></td><td>$</td><td>987.7</td><td></td><td></td><td>$</td><td>1,003.6</td><td></td><td></td><td></td></tr></table>
|
table
|
57.0
|
monetaryItemType
|
table: <entity> 57.0 </entity> <entity type> monetaryItemType </entity type> <context> FERC 2021 Transmission Formula Rate Challenge Refunds | $ | 72.7 | $ | 57.0 </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>OPCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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</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></td><td></td><td></td><td></td><td></td><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 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>$</td><td>72.7</td><td></td><td></td><td>$</td><td>57.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>0.2</td><td></td><td></td><td>0.2</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></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>72.9</td><td></td><td></td><td>57.2</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 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>480.0</td><td></td><td></td><td>475.5</td><td></td><td></td><td>(a)</td></tr><tr><td>Income Taxes, Net (b)</td><td></td><td>367.6</td><td></td><td></td><td>408.2</td><td></td><td></td><td>(c)</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>4.0</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>851.6</td><td></td><td></td><td>883.7</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs</td><td></td><td>32.1</td><td></td><td></td><td>26.1</td><td></td><td></td><td>8 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>22.8</td><td></td><td></td><td>23.2</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>8.3</td><td></td><td></td><td>13.4</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>63.2</td><td></td><td></td><td>62.7</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 Approved for Payment</td><td></td><td>914.8</td><td></td><td></td><td>946.4</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>Total Noncurrent Regulatory Liabilities</td><td></td><td>$</td><td>987.7</td><td></td><td></td><td>$</td><td>1,003.6</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 Liabilities Pending Final Regulatory Determination | 0.2 | 0.2 </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>OPCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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</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></td><td></td><td></td><td></td><td></td><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 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>$</td><td>72.7</td><td></td><td></td><td>$</td><td>57.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>0.2</td><td></td><td></td><td>0.2</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></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>72.9</td><td></td><td></td><td>57.2</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 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>480.0</td><td></td><td></td><td>475.5</td><td></td><td></td><td>(a)</td></tr><tr><td>Income Taxes, Net (b)</td><td></td><td>367.6</td><td></td><td></td><td>408.2</td><td></td><td></td><td>(c)</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>4.0</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>851.6</td><td></td><td></td><td>883.7</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs</td><td></td><td>32.1</td><td></td><td></td><td>26.1</td><td></td><td></td><td>8 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>22.8</td><td></td><td></td><td>23.2</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>8.3</td><td></td><td></td><td>13.4</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>63.2</td><td></td><td></td><td>62.7</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 Approved for Payment</td><td></td><td>914.8</td><td></td><td></td><td>946.4</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>Total Noncurrent Regulatory Liabilities</td><td></td><td>$</td><td>987.7</td><td></td><td></td><td>$</td><td>1,003.6</td><td></td><td></td><td></td></tr></table>
|
table
|
72.9
|
monetaryItemType
|
table: <entity> 72.9 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Liabilities Pending Final Regulatory Determination | 72.9 | 57.2 </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>OPCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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</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></td><td></td><td></td><td></td><td></td><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 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>$</td><td>72.7</td><td></td><td></td><td>$</td><td>57.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>0.2</td><td></td><td></td><td>0.2</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></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>72.9</td><td></td><td></td><td>57.2</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 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>480.0</td><td></td><td></td><td>475.5</td><td></td><td></td><td>(a)</td></tr><tr><td>Income Taxes, Net (b)</td><td></td><td>367.6</td><td></td><td></td><td>408.2</td><td></td><td></td><td>(c)</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>4.0</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>851.6</td><td></td><td></td><td>883.7</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs</td><td></td><td>32.1</td><td></td><td></td><td>26.1</td><td></td><td></td><td>8 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>22.8</td><td></td><td></td><td>23.2</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>8.3</td><td></td><td></td><td>13.4</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>63.2</td><td></td><td></td><td>62.7</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 Approved for Payment</td><td></td><td>914.8</td><td></td><td></td><td>946.4</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>Total Noncurrent Regulatory Liabilities</td><td></td><td>$</td><td>987.7</td><td></td><td></td><td>$</td><td>1,003.6</td><td></td><td></td><td></td></tr></table>
|
table
|
57.2
|
monetaryItemType
|
table: <entity> 57.2 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Liabilities Pending Final Regulatory Determination | 72.9 | 57.2 </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>OPCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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</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></td><td></td><td></td><td></td><td></td><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 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>$</td><td>72.7</td><td></td><td></td><td>$</td><td>57.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>0.2</td><td></td><td></td><td>0.2</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></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>72.9</td><td></td><td></td><td>57.2</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 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>480.0</td><td></td><td></td><td>475.5</td><td></td><td></td><td>(a)</td></tr><tr><td>Income Taxes, Net (b)</td><td></td><td>367.6</td><td></td><td></td><td>408.2</td><td></td><td></td><td>(c)</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>4.0</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>851.6</td><td></td><td></td><td>883.7</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs</td><td></td><td>32.1</td><td></td><td></td><td>26.1</td><td></td><td></td><td>8 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>22.8</td><td></td><td></td><td>23.2</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>8.3</td><td></td><td></td><td>13.4</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>63.2</td><td></td><td></td><td>62.7</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 Approved for Payment</td><td></td><td>914.8</td><td></td><td></td><td>946.4</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>Total Noncurrent Regulatory Liabilities</td><td></td><td>$</td><td>987.7</td><td></td><td></td><td>$</td><td>1,003.6</td><td></td><td></td><td></td></tr></table>
|
table
|
480.0
|
monetaryItemType
|
table: <entity> 480.0 </entity> <entity type> monetaryItemType </entity type> <context> Asset Removal Costs | 480.0 | 475.5 | (a) </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>OPCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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</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></td><td></td><td></td><td></td><td></td><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 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>$</td><td>72.7</td><td></td><td></td><td>$</td><td>57.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>0.2</td><td></td><td></td><td>0.2</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></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>72.9</td><td></td><td></td><td>57.2</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 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>480.0</td><td></td><td></td><td>475.5</td><td></td><td></td><td>(a)</td></tr><tr><td>Income Taxes, Net (b)</td><td></td><td>367.6</td><td></td><td></td><td>408.2</td><td></td><td></td><td>(c)</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>4.0</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>851.6</td><td></td><td></td><td>883.7</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs</td><td></td><td>32.1</td><td></td><td></td><td>26.1</td><td></td><td></td><td>8 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>22.8</td><td></td><td></td><td>23.2</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>8.3</td><td></td><td></td><td>13.4</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>63.2</td><td></td><td></td><td>62.7</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 Approved for Payment</td><td></td><td>914.8</td><td></td><td></td><td>946.4</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>Total Noncurrent Regulatory Liabilities</td><td></td><td>$</td><td>987.7</td><td></td><td></td><td>$</td><td>1,003.6</td><td></td><td></td><td></td></tr></table>
|
table
|
475.5
|
monetaryItemType
|
table: <entity> 475.5 </entity> <entity type> monetaryItemType </entity type> <context> Asset Removal Costs | 480.0 | 475.5 | (a) </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>OPCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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</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></td><td></td><td></td><td></td><td></td><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 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>$</td><td>72.7</td><td></td><td></td><td>$</td><td>57.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>0.2</td><td></td><td></td><td>0.2</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></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>72.9</td><td></td><td></td><td>57.2</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 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>480.0</td><td></td><td></td><td>475.5</td><td></td><td></td><td>(a)</td></tr><tr><td>Income Taxes, Net (b)</td><td></td><td>367.6</td><td></td><td></td><td>408.2</td><td></td><td></td><td>(c)</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>4.0</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>851.6</td><td></td><td></td><td>883.7</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs</td><td></td><td>32.1</td><td></td><td></td><td>26.1</td><td></td><td></td><td>8 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>22.8</td><td></td><td></td><td>23.2</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>8.3</td><td></td><td></td><td>13.4</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>63.2</td><td></td><td></td><td>62.7</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 Approved for Payment</td><td></td><td>914.8</td><td></td><td></td><td>946.4</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>Total Noncurrent Regulatory Liabilities</td><td></td><td>$</td><td>987.7</td><td></td><td></td><td>$</td><td>1,003.6</td><td></td><td></td><td></td></tr></table>
|
table
|
367.6
|
monetaryItemType
|
table: <entity> 367.6 </entity> <entity type> monetaryItemType </entity type> <context> Income Taxes, Net (b) | 367.6 | 408.2 | (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>OPCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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</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></td><td></td><td></td><td></td><td></td><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 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>$</td><td>72.7</td><td></td><td></td><td>$</td><td>57.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>0.2</td><td></td><td></td><td>0.2</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></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>72.9</td><td></td><td></td><td>57.2</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 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>480.0</td><td></td><td></td><td>475.5</td><td></td><td></td><td>(a)</td></tr><tr><td>Income Taxes, Net (b)</td><td></td><td>367.6</td><td></td><td></td><td>408.2</td><td></td><td></td><td>(c)</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>4.0</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>851.6</td><td></td><td></td><td>883.7</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs</td><td></td><td>32.1</td><td></td><td></td><td>26.1</td><td></td><td></td><td>8 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>22.8</td><td></td><td></td><td>23.2</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>8.3</td><td></td><td></td><td>13.4</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>63.2</td><td></td><td></td><td>62.7</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 Approved for Payment</td><td></td><td>914.8</td><td></td><td></td><td>946.4</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>Total Noncurrent Regulatory Liabilities</td><td></td><td>$</td><td>987.7</td><td></td><td></td><td>$</td><td>1,003.6</td><td></td><td></td><td></td></tr></table>
|
table
|
408.2
|
monetaryItemType
|
table: <entity> 408.2 </entity> <entity type> monetaryItemType </entity type> <context> Income Taxes, Net (b) | 367.6 | 408.2 | (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>OPCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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</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></td><td></td><td></td><td></td><td></td><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 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>$</td><td>72.7</td><td></td><td></td><td>$</td><td>57.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>0.2</td><td></td><td></td><td>0.2</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></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>72.9</td><td></td><td></td><td>57.2</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 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>480.0</td><td></td><td></td><td>475.5</td><td></td><td></td><td>(a)</td></tr><tr><td>Income Taxes, Net (b)</td><td></td><td>367.6</td><td></td><td></td><td>408.2</td><td></td><td></td><td>(c)</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>4.0</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>851.6</td><td></td><td></td><td>883.7</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs</td><td></td><td>32.1</td><td></td><td></td><td>26.1</td><td></td><td></td><td>8 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>22.8</td><td></td><td></td><td>23.2</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>8.3</td><td></td><td></td><td>13.4</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>63.2</td><td></td><td></td><td>62.7</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 Approved for Payment</td><td></td><td>914.8</td><td></td><td></td><td>946.4</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>Total Noncurrent Regulatory Liabilities</td><td></td><td>$</td><td>987.7</td><td></td><td></td><td>$</td><td>1,003.6</td><td></td><td></td><td></td></tr></table>
|
table
|
4.0
|
monetaryItemType
|
table: <entity> 4.0 </entity> <entity type> monetaryItemType </entity type> <context> Other Regulatory Liabilities Approved for Payment | 4.0 | — </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>OPCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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</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></td><td></td><td></td><td></td><td></td><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 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>$</td><td>72.7</td><td></td><td></td><td>$</td><td>57.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>0.2</td><td></td><td></td><td>0.2</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></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>72.9</td><td></td><td></td><td>57.2</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 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>480.0</td><td></td><td></td><td>475.5</td><td></td><td></td><td>(a)</td></tr><tr><td>Income Taxes, Net (b)</td><td></td><td>367.6</td><td></td><td></td><td>408.2</td><td></td><td></td><td>(c)</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>4.0</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>851.6</td><td></td><td></td><td>883.7</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs</td><td></td><td>32.1</td><td></td><td></td><td>26.1</td><td></td><td></td><td>8 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>22.8</td><td></td><td></td><td>23.2</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>8.3</td><td></td><td></td><td>13.4</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>63.2</td><td></td><td></td><td>62.7</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 Approved for Payment</td><td></td><td>914.8</td><td></td><td></td><td>946.4</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>Total Noncurrent Regulatory Liabilities</td><td></td><td>$</td><td>987.7</td><td></td><td></td><td>$</td><td>1,003.6</td><td></td><td></td><td></td></tr></table>
|
table
|
—
|
monetaryItemType
|
table: <entity> — </entity> <entity type> monetaryItemType </entity type> <context> Other Regulatory Liabilities Approved for Payment | 4.0 | — </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>OPCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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</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></td><td></td><td></td><td></td><td></td><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 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>$</td><td>72.7</td><td></td><td></td><td>$</td><td>57.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>0.2</td><td></td><td></td><td>0.2</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></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>72.9</td><td></td><td></td><td>57.2</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 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>480.0</td><td></td><td></td><td>475.5</td><td></td><td></td><td>(a)</td></tr><tr><td>Income Taxes, Net (b)</td><td></td><td>367.6</td><td></td><td></td><td>408.2</td><td></td><td></td><td>(c)</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>4.0</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>851.6</td><td></td><td></td><td>883.7</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs</td><td></td><td>32.1</td><td></td><td></td><td>26.1</td><td></td><td></td><td>8 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>22.8</td><td></td><td></td><td>23.2</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>8.3</td><td></td><td></td><td>13.4</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>63.2</td><td></td><td></td><td>62.7</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 Approved for Payment</td><td></td><td>914.8</td><td></td><td></td><td>946.4</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>Total Noncurrent Regulatory Liabilities</td><td></td><td>$</td><td>987.7</td><td></td><td></td><td>$</td><td>1,003.6</td><td></td><td></td><td></td></tr></table>
|
table
|
851.6
|
monetaryItemType
|
table: <entity> 851.6 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Liabilities Currently Paying a Return | 851.6 | 883.7 </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>OPCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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</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></td><td></td><td></td><td></td><td></td><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 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>$</td><td>72.7</td><td></td><td></td><td>$</td><td>57.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>0.2</td><td></td><td></td><td>0.2</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></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>72.9</td><td></td><td></td><td>57.2</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 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>480.0</td><td></td><td></td><td>475.5</td><td></td><td></td><td>(a)</td></tr><tr><td>Income Taxes, Net (b)</td><td></td><td>367.6</td><td></td><td></td><td>408.2</td><td></td><td></td><td>(c)</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>4.0</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>851.6</td><td></td><td></td><td>883.7</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs</td><td></td><td>32.1</td><td></td><td></td><td>26.1</td><td></td><td></td><td>8 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>22.8</td><td></td><td></td><td>23.2</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>8.3</td><td></td><td></td><td>13.4</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>63.2</td><td></td><td></td><td>62.7</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 Approved for Payment</td><td></td><td>914.8</td><td></td><td></td><td>946.4</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>Total Noncurrent Regulatory Liabilities</td><td></td><td>$</td><td>987.7</td><td></td><td></td><td>$</td><td>1,003.6</td><td></td><td></td><td></td></tr></table>
|
table
|
883.7
|
monetaryItemType
|
table: <entity> 883.7 </entity> <entity type> monetaryItemType </entity type> <context> Total Regulatory Liabilities Currently Paying a Return | 851.6 | 883.7 </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>OPCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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</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></td><td></td><td></td><td></td><td></td><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 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>$</td><td>72.7</td><td></td><td></td><td>$</td><td>57.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>0.2</td><td></td><td></td><td>0.2</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></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>72.9</td><td></td><td></td><td>57.2</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 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>480.0</td><td></td><td></td><td>475.5</td><td></td><td></td><td>(a)</td></tr><tr><td>Income Taxes, Net (b)</td><td></td><td>367.6</td><td></td><td></td><td>408.2</td><td></td><td></td><td>(c)</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>4.0</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>851.6</td><td></td><td></td><td>883.7</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs</td><td></td><td>32.1</td><td></td><td></td><td>26.1</td><td></td><td></td><td>8 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>22.8</td><td></td><td></td><td>23.2</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>8.3</td><td></td><td></td><td>13.4</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>63.2</td><td></td><td></td><td>62.7</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 Approved for Payment</td><td></td><td>914.8</td><td></td><td></td><td>946.4</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>Total Noncurrent Regulatory Liabilities</td><td></td><td>$</td><td>987.7</td><td></td><td></td><td>$</td><td>1,003.6</td><td></td><td></td><td></td></tr></table>
|
table
|
32.1
|
monetaryItemType
|
table: <entity> 32.1 </entity> <entity type> monetaryItemType </entity type> <context> Over-recovered Fuel Costs | 32.1 | 26.1 | 8 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>OPCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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</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></td><td></td><td></td><td></td><td></td><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 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>$</td><td>72.7</td><td></td><td></td><td>$</td><td>57.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>0.2</td><td></td><td></td><td>0.2</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></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>72.9</td><td></td><td></td><td>57.2</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 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>480.0</td><td></td><td></td><td>475.5</td><td></td><td></td><td>(a)</td></tr><tr><td>Income Taxes, Net (b)</td><td></td><td>367.6</td><td></td><td></td><td>408.2</td><td></td><td></td><td>(c)</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>4.0</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>851.6</td><td></td><td></td><td>883.7</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs</td><td></td><td>32.1</td><td></td><td></td><td>26.1</td><td></td><td></td><td>8 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>22.8</td><td></td><td></td><td>23.2</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>8.3</td><td></td><td></td><td>13.4</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>63.2</td><td></td><td></td><td>62.7</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 Approved for Payment</td><td></td><td>914.8</td><td></td><td></td><td>946.4</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>Total Noncurrent Regulatory Liabilities</td><td></td><td>$</td><td>987.7</td><td></td><td></td><td>$</td><td>1,003.6</td><td></td><td></td><td></td></tr></table>
|
table
|
26.1
|
monetaryItemType
|
table: <entity> 26.1 </entity> <entity type> monetaryItemType </entity type> <context> Over-recovered Fuel Costs | 32.1 | 26.1 | 8 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>OPCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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</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></td><td></td><td></td><td></td><td></td><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 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>$</td><td>72.7</td><td></td><td></td><td>$</td><td>57.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>0.2</td><td></td><td></td><td>0.2</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></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>72.9</td><td></td><td></td><td>57.2</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 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>480.0</td><td></td><td></td><td>475.5</td><td></td><td></td><td>(a)</td></tr><tr><td>Income Taxes, Net (b)</td><td></td><td>367.6</td><td></td><td></td><td>408.2</td><td></td><td></td><td>(c)</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>4.0</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>851.6</td><td></td><td></td><td>883.7</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs</td><td></td><td>32.1</td><td></td><td></td><td>26.1</td><td></td><td></td><td>8 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>22.8</td><td></td><td></td><td>23.2</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>8.3</td><td></td><td></td><td>13.4</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>63.2</td><td></td><td></td><td>62.7</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 Approved for Payment</td><td></td><td>914.8</td><td></td><td></td><td>946.4</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>Total Noncurrent Regulatory Liabilities</td><td></td><td>$</td><td>987.7</td><td></td><td></td><td>$</td><td>1,003.6</td><td></td><td></td><td></td></tr></table>
|
table
|
22.8
|
monetaryItemType
|
table: <entity> 22.8 </entity> <entity type> monetaryItemType </entity type> <context> Peak Demand Reduction/Energy Efficiency | 22.8 | 23.2 | 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>OPCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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</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></td><td></td><td></td><td></td><td></td><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 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>$</td><td>72.7</td><td></td><td></td><td>$</td><td>57.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>0.2</td><td></td><td></td><td>0.2</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></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>72.9</td><td></td><td></td><td>57.2</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 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>480.0</td><td></td><td></td><td>475.5</td><td></td><td></td><td>(a)</td></tr><tr><td>Income Taxes, Net (b)</td><td></td><td>367.6</td><td></td><td></td><td>408.2</td><td></td><td></td><td>(c)</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>4.0</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>851.6</td><td></td><td></td><td>883.7</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs</td><td></td><td>32.1</td><td></td><td></td><td>26.1</td><td></td><td></td><td>8 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>22.8</td><td></td><td></td><td>23.2</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>8.3</td><td></td><td></td><td>13.4</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>63.2</td><td></td><td></td><td>62.7</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 Approved for Payment</td><td></td><td>914.8</td><td></td><td></td><td>946.4</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>Total Noncurrent Regulatory Liabilities</td><td></td><td>$</td><td>987.7</td><td></td><td></td><td>$</td><td>1,003.6</td><td></td><td></td><td></td></tr></table>
|
table
|
23.2
|
monetaryItemType
|
table: <entity> 23.2 </entity> <entity type> monetaryItemType </entity type> <context> Peak Demand Reduction/Energy Efficiency | 22.8 | 23.2 | 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>OPCo</td></tr><tr><td></td><td></td><td>December 31,</td><td></td><td>Remaining Refund Period</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td><td></td></tr><tr><td>Regulatory Liabilities:</td><td></td><td>(in millions)</td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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</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></td><td></td><td></td><td></td><td></td><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 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>$</td><td>72.7</td><td></td><td></td><td>$</td><td>57.0</td><td></td><td></td><td></td></tr><tr><td>Other Regulatory Liabilities Pending Final Regulatory Determination</td><td></td><td>0.2</td><td></td><td></td><td>0.2</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></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>72.9</td><td></td><td></td><td>57.2</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 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>480.0</td><td></td><td></td><td>475.5</td><td></td><td></td><td>(a)</td></tr><tr><td>Income Taxes, Net (b)</td><td></td><td>367.6</td><td></td><td></td><td>408.2</td><td></td><td></td><td>(c)</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>4.0</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>851.6</td><td></td><td></td><td>883.7</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Over-recovered Fuel Costs</td><td></td><td>32.1</td><td></td><td></td><td>26.1</td><td></td><td></td><td>8 years</td></tr><tr><td>Peak Demand Reduction/Energy Efficiency</td><td></td><td>22.8</td><td></td><td></td><td>23.2</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></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></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>8.3</td><td></td><td></td><td>13.4</td><td></td><td></td><td>various</td></tr><tr><td>Total Regulatory Liabilities Currently Not Paying a Return</td><td></td><td>63.2</td><td></td><td></td><td>62.7</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 Approved for Payment</td><td></td><td>914.8</td><td></td><td></td><td>946.4</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>Total Noncurrent Regulatory Liabilities</td><td></td><td>$</td><td>987.7</td><td></td><td></td><td>$</td><td>1,003.6</td><td></td><td></td><td></td></tr></table>
|
table
|
8.3
|
monetaryItemType
|
table: <entity> 8.3 </entity> <entity type> monetaryItemType </entity type> <context> Other Regulatory Liabilities Approved for Payment | 8.3 | 13.4 | various </context>
|
us-gaap:RegulatoryLiabilityNoncurrent
|
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