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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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
639.1
monetaryItemType
table: <entity> 639.1 </entity> <entity type> monetaryItemType </entity type> <context> OPERATING INCOME | 707.0 | 639.1 | 549.2 </context>
us-gaap:OperatingIncomeLoss
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
549.2
monetaryItemType
table: <entity> 549.2 </entity> <entity type> monetaryItemType </entity type> <context> OPERATING INCOME | 707.0 | 639.1 | 549.2 </context>
us-gaap:OperatingIncomeLoss
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
6.6
monetaryItemType
table: <entity> 6.6 </entity> <entity type> monetaryItemType </entity type> <context> Interest Income | 6.6 | 2.3 | 3.6 </context>
us-gaap:InvestmentIncomeInterestAndDividend
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
2.3
monetaryItemType
table: <entity> 2.3 </entity> <entity type> monetaryItemType </entity type> <context> Interest Income | 6.6 | 2.3 | 3.6 </context>
us-gaap:InvestmentIncomeInterestAndDividend
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
3.6
monetaryItemType
table: <entity> 3.6 </entity> <entity type> monetaryItemType </entity type> <context> Other Revenues | 3.7 | 5.0 | 3.6 </context>
us-gaap:InvestmentIncomeInterestAndDividend
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
45.9
monetaryItemType
table: <entity> 45.9 </entity> <entity type> monetaryItemType </entity type> <context> Allowance for Equity Funds Used During Construction | 45.9 | 28.4 | 19.7 </context>
us-gaap:PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
28.4
monetaryItemType
table: <entity> 28.4 </entity> <entity type> monetaryItemType </entity type> <context> Allowance for Equity Funds Used During Construction | 45.9 | 28.4 | 19.7 </context>
us-gaap:PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
19.7
monetaryItemType
table: <entity> 19.7 </entity> <entity type> monetaryItemType </entity type> <context> Allowance for Equity Funds Used During Construction | 45.9 | 28.4 | 19.7 </context>
us-gaap:PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
20.3
monetaryItemType
table: <entity> 20.3 </entity> <entity type> monetaryItemType </entity type> <context> Non-Service Cost Components of Net Periodic Benefit Cost | 20.3 | 19.2 | 16.7 </context>
us-gaap:NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
19.2
monetaryItemType
table: <entity> 19.2 </entity> <entity type> monetaryItemType </entity type> <context> Non-Service Cost Components of Net Periodic Benefit Cost | 20.3 | 19.2 | 16.7 </context>
us-gaap:NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
16.7
monetaryItemType
table: <entity> 16.7 </entity> <entity type> monetaryItemType </entity type> <context> Non-Service Cost Components of Net Periodic Benefit Cost | 20.3 | 19.2 | 16.7 </context>
us-gaap:NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
257.6
monetaryItemType
table: <entity> 257.6 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:InterestExpenseNonoperating
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
232.7
monetaryItemType
table: <entity> 232.7 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:InterestExpenseNonoperating
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
208.7
monetaryItemType
table: <entity> 208.7 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:InterestExpenseNonoperating
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
522.2
monetaryItemType
table: <entity> 522.2 </entity> <entity type> monetaryItemType </entity type> <context> INCOME BEFORE INCOME TAX EXPENSE | 522.2 | 456.3 | 380.5 </context>
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
456.3
monetaryItemType
table: <entity> 456.3 </entity> <entity type> monetaryItemType </entity type> <context> INCOME BEFORE INCOME TAX EXPENSE | 522.2 | 456.3 | 380.5 </context>
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
380.5
monetaryItemType
table: <entity> 380.5 </entity> <entity type> monetaryItemType </entity type> <context> INCOME BEFORE INCOME TAX EXPENSE | 522.2 | 456.3 | 380.5 </context>
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
102.1
monetaryItemType
table: <entity> 102.1 </entity> <entity type> monetaryItemType </entity type> <context> Income Tax Expense | 102.1 | 85.9 | 72.6 </context>
us-gaap:IncomeTaxExpenseBenefit
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
85.9
monetaryItemType
table: <entity> 85.9 </entity> <entity type> monetaryItemType </entity type> <context> Income Tax Expense | 102.1 | 85.9 | 72.6 </context>
us-gaap:IncomeTaxExpenseBenefit
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
72.6
monetaryItemType
table: <entity> 72.6 </entity> <entity type> monetaryItemType </entity type> <context> Income Tax Expense | 102.1 | 85.9 | 72.6 </context>
us-gaap:IncomeTaxExpenseBenefit
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
420.1
monetaryItemType
table: <entity> 420.1 </entity> <entity type> monetaryItemType </entity type> <context> NET INCOME | $ | 420.1 | $ | 370.4 | $ | 307.9 </context>
us-gaap:NetIncomeLoss
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
370.4
monetaryItemType
table: <entity> 370.4 </entity> <entity type> monetaryItemType </entity type> <context> NET INCOME | $ | 420.1 | $ | 370.4 | $ | 307.9 </context>
us-gaap:NetIncomeLoss
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
307.9
monetaryItemType
table: <entity> 307.9 </entity> <entity type> monetaryItemType </entity type> <context> NET INCOME | $ | 420.1 | $ | 370.4 | $ | 307.9 </context>
us-gaap:NetIncomeLoss
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
420.1
monetaryItemType
table: <entity> 420.1 </entity> <entity type> monetaryItemType </entity type> <context> Net Income | $ | 420.1 | $ | 370.4 | $ | 307.9 </context>
us-gaap:NetIncomeLoss
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
370.4
monetaryItemType
table: <entity> 370.4 </entity> <entity type> monetaryItemType </entity type> <context> Net Income | $ | 420.1 | $ | 370.4 | $ | 307.9 </context>
us-gaap:NetIncomeLoss
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
307.9
monetaryItemType
table: <entity> 307.9 </entity> <entity type> monetaryItemType </entity type> <context> Net Income | $ | 420.1 | $ | 370.4 | $ | 307.9 </context>
us-gaap:NetIncomeLoss
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
1.5
monetaryItemType
table: <entity> 1.5 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
0.2
monetaryItemType
table: <entity> 0.2 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
0.3
monetaryItemType
table: <entity> 0.3 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
5.8
monetaryItemType
table: <entity> 5.8 </entity> <entity type> monetaryItemType </entity type> <context> Cash Flow Hedges, Net of Tax of $ 1.5 , $ 0.2 and $ 0.3 in 2024, 2023 and 2022, Respectively Cash Flow Hedges, Net of Tax of $ 1.5 , $ 0.2 and $ 0.3 in 2024, 2023 and 2022, Respectively | 5.8 | 0.8 | 1.0 </context>
us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
0.8
monetaryItemType
table: <entity> 0.8 </entity> <entity type> monetaryItemType </entity type> <context> Cash Flow Hedges, Net of Tax of $ 1.5 , $ 0.2 and $ 0.3 in 2024, 2023 and 2022, Respectively Cash Flow Hedges, Net of Tax of $ 1.5 , $ 0.2 and $ 0.3 in 2024, 2023 and 2022, Respectively | 5.8 | 0.8 | 1.0 </context>
us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
1.0
monetaryItemType
table: <entity> 1.0 </entity> <entity type> monetaryItemType </entity type> <context> Cash Flow Hedges, Net of Tax of $ 1.5 , $ 0.2 and $ 0.3 in 2024, 2023 and 2022, Respectively Cash Flow Hedges, Net of Tax of $ 1.5 , $ 0.2 and $ 0.3 in 2024, 2023 and 2022, Respectively | 5.8 | 0.8 | 1.0 </context>
us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
0
monetaryItemType
table: <entity> 0 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
0.2
monetaryItemType
table: <entity> 0.2 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
monetaryItemType
table: <entity> — </entity> <entity type> monetaryItemType </entity type> <context> Amortization of Pension and OPEB Deferred Costs, Net of Tax of $ 0 , $( 0.2 ) and $ 0 in 2024, 2023 and 2022, Respectively Amortization of Pension and OPEB Deferred Costs, Net of Tax of $ 0 , $( 0.2 ) and $ 0 in 2024, 2023 and 2022, Res...
us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
0.7
monetaryItemType
table: <entity> 0.7 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
0.1
monetaryItemType
table: <entity> 0.1 </entity> <entity type> monetaryItemType </entity type> <context> Amortization of Pension and OPEB Deferred Costs, Net of Tax of $ 0 , $( 0.2 ) and $ 0 in 2024, 2023 and 2022, Respectively Amortization of Pension and OPEB Deferred Costs, Net of Tax of $ 0 , $( 0.2 ) and $ 0 in 2024, 2023 and 2022, R...
us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
0.1
monetaryItemType
table: <entity> 0.1 </entity> <entity type> monetaryItemType </entity type> <context> Amortization of Pension and OPEB Deferred Costs, Net of Tax of $ 0 , $( 0.2 ) and $ 0 in 2024, 2023 and 2022, Respectively Amortization of Pension and OPEB Deferred Costs, Net of Tax of $ 0 , $( 0.2 ) and $ 0 in 2024, 2023 and 2022, R...
us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
0
monetaryItemType
table: <entity> 0 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
0.9
monetaryItemType
table: <entity> 0.9 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
0.2
monetaryItemType
table: <entity> 0.2 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
0.1
monetaryItemType
table: <entity> 0.1 </entity> <entity type> monetaryItemType </entity type> <context> Amortization of Pension and OPEB Deferred Costs, Net of Tax of $ 0 , $( 0.2 ) and $ 0 in 2024, 2023 and 2022, Respectively Amortization of Pension and OPEB Deferred Costs, Net of Tax of $ 0 , $( 0.2 ) and $ 0 in 2024, 2023 and 2022, R...
us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
3.2
monetaryItemType
table: <entity> 3.2 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
5.6
monetaryItemType
table: <entity> 5.6 </entity> <entity type> monetaryItemType </entity type> <context> TOTAL OTHER COMPREHENSIVE INCOME (LOSS) | 5.6 | — | ( 2.1 ) </context>
us-gaap:OtherComprehensiveIncomeLossNetOfTax
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
monetaryItemType
table: <entity> — </entity> <entity type> monetaryItemType </entity type> <context> Amortization of Pension and OPEB Deferred Costs, Net of Tax of $ 0 , $( 0.2 ) and $ 0 in 2024, 2023 and 2022, Respectively Amortization of Pension and OPEB Deferred Costs, Net of Tax of $ 0 , $( 0.2 ) and $ 0 in 2024, 2023 and 2022, Res...
us-gaap:OtherComprehensiveIncomeLossNetOfTax
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
2.1
monetaryItemType
table: <entity> 2.1 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:OtherComprehensiveIncomeLossNetOfTax
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
425.7
monetaryItemType
table: <entity> 425.7 </entity> <entity type> monetaryItemType </entity type> <context> TOTAL COMPREHENSIVE INCOME | $ | 425.7 | $ | 370.4 | $ | 305.8 </context>
us-gaap:ComprehensiveIncomeNetOfTax
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
370.4
monetaryItemType
table: <entity> 370.4 </entity> <entity type> monetaryItemType </entity type> <context> Net Income | $ | 420.1 | $ | 370.4 | $ | 307.9 </context>
us-gaap:ComprehensiveIncomeNetOfTax
<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>Years Ended December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</t...
table
305.8
monetaryItemType
table: <entity> 305.8 </entity> <entity type> monetaryItemType </entity type> <context> TOTAL COMPREHENSIVE INCOME | $ | 425.7 | $ | 370.4 | $ | 305.8 </context>
us-gaap:ComprehensiveIncomeNetOfTax
<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><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>Paid-in Capital</td><td></td><td>Re...
table
1553.9
monetaryItemType
table: <entity> 1553.9 </entity> <entity type> monetaryItemType </entity type> <context> TOTAL COMMON SHAREHOLDER’S EQUITY – DECEMBER 31, 2021 | $ | 1,553.9 | $ | 2,046.8 | $ | ( 6.5 ) | $ | 3,594.2 </context>
us-gaap:StockholdersEquity
<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><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>Paid-in Capital</td><td></td><td>Re...
table
2046.8
monetaryItemType
table: <entity> 2046.8 </entity> <entity type> monetaryItemType </entity type> <context> TOTAL COMMON SHAREHOLDER’S EQUITY – DECEMBER 31, 2021 | $ | 1,553.9 | $ | 2,046.8 | $ | ( 6.5 ) | $ | 3,594.2 </context>
us-gaap:StockholdersEquity
<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><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>Paid-in Capital</td><td></td><td>Re...
table
6.5
monetaryItemType
table: <entity> 6.5 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:StockholdersEquity
<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><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>Paid-in Capital</td><td></td><td>Re...
table
3594.2
monetaryItemType
table: <entity> 3594.2 </entity> <entity type> monetaryItemType </entity type> <context> TOTAL COMMON SHAREHOLDER’S EQUITY – DECEMBER 31, 2021 | $ | 1,553.9 | $ | 2,046.8 | $ | ( 6.5 ) | $ | 3,594.2 </context>
us-gaap:StockholdersEquity
<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><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>Paid-in Capital</td><td></td><td>Re...
table
307.9
monetaryItemType
table: <entity> 307.9 </entity> <entity type> monetaryItemType </entity type> <context> Net Income | 307.9 | 307.9 </context>
us-gaap:NetIncomeLoss
<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><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>Paid-in Capital</td><td></td><td>Re...
table
2.1
monetaryItemType
table: <entity> 2.1 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:OtherComprehensiveIncomeLossNetOfTax
<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><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>Paid-in Capital</td><td></td><td>Re...
table
1558.2
monetaryItemType
table: <entity> 1558.2 </entity> <entity type> monetaryItemType </entity type> <context> TOTAL COMMON SHAREHOLDER’S EQUITY – DECEMBER 31, 2022 | 1,558.2 | 2,354.7 | ( 8.6 ) | 3,904.3 </context>
us-gaap:StockholdersEquity
<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><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>Paid-in Capital</td><td></td><td>Re...
table
2354.7
monetaryItemType
table: <entity> 2354.7 </entity> <entity type> monetaryItemType </entity type> <context> TOTAL COMMON SHAREHOLDER’S EQUITY – DECEMBER 31, 2022 | 1,558.2 | 2,354.7 | ( 8.6 ) | 3,904.3 </context>
us-gaap:StockholdersEquity
<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><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>Paid-in Capital</td><td></td><td>Re...
table
8.6
monetaryItemType
table: <entity> 8.6 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:StockholdersEquity
<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><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>Paid-in Capital</td><td></td><td>Re...
table
3904.3
monetaryItemType
table: <entity> 3904.3 </entity> <entity type> monetaryItemType </entity type> <context> TOTAL COMMON SHAREHOLDER’S EQUITY – DECEMBER 31, 2022 | 1,558.2 | 2,354.7 | ( 8.6 ) | 3,904.3 </context>
us-gaap:StockholdersEquity
<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><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>Paid-in Capital</td><td></td><td>Re...
table
370.4
monetaryItemType
table: <entity> 370.4 </entity> <entity type> monetaryItemType </entity type> <context> Net Income | 370.4 | 370.4 </context>
us-gaap:NetIncomeLoss
<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><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>Paid-in Capital</td><td></td><td>Re...
table
2079.6
monetaryItemType
table: <entity> 2079.6 </entity> <entity type> monetaryItemType </entity type> <context> TOTAL COMMON SHAREHOLDER’S EQUITY – DECEMBER 31, 2023 | 2,079.6 | 2,725.1 | ( 8.6 ) | 4,796.1 </context>
us-gaap:StockholdersEquity
<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><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>Paid-in Capital</td><td></td><td>Re...
table
2725.1
monetaryItemType
table: <entity> 2725.1 </entity> <entity type> monetaryItemType </entity type> <context> TOTAL COMMON SHAREHOLDER’S EQUITY – DECEMBER 31, 2023 | 2,079.6 | 2,725.1 | ( 8.6 ) | 4,796.1 </context>
us-gaap:StockholdersEquity
<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><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>Paid-in Capital</td><td></td><td>Re...
table
4796.1
monetaryItemType
table: <entity> 4796.1 </entity> <entity type> monetaryItemType </entity type> <context> TOTAL COMMON SHAREHOLDER’S EQUITY – DECEMBER 31, 2023 | 2,079.6 | 2,725.1 | ( 8.6 ) | 4,796.1 </context>
us-gaap:StockholdersEquity
<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><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>Paid-in Capital</td><td></td><td>Re...
table
350.0
monetaryItemType
table: <entity> 350.0 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:DividendsCommonStock
<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><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>Paid-in Capital</td><td></td><td>Re...
table
420.1
monetaryItemType
table: <entity> 420.1 </entity> <entity type> monetaryItemType </entity type> <context> Net Income | 420.1 | 420.1 </context>
us-gaap:NetIncomeLoss
<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><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>Paid-in Capital</td><td></td><td>Re...
table
5.6
monetaryItemType
table: <entity> 5.6 </entity> <entity type> monetaryItemType </entity type> <context> Other Comprehensive Income | 5.6 | 5.6 </context>
us-gaap:OtherComprehensiveIncomeLossNetOfTax
<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><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>Paid-in Capital</td><td></td><td>Re...
table
2092.4
monetaryItemType
table: <entity> 2092.4 </entity> <entity type> monetaryItemType </entity type> <context> TOTAL COMMON SHAREHOLDER’S EQUITY – DECEMBER 31, 2024 | $ | 2,092.4 | $ | 2,795.2 | $ | ( 3.0 ) | $ | 4,884.6 </context>
us-gaap:StockholdersEquity
<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><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>Paid-in Capital</td><td></td><td>Re...
table
2795.2
monetaryItemType
table: <entity> 2795.2 </entity> <entity type> monetaryItemType </entity type> <context> TOTAL COMMON SHAREHOLDER’S EQUITY – DECEMBER 31, 2024 | $ | 2,092.4 | $ | 2,795.2 | $ | ( 3.0 ) | $ | 4,884.6 </context>
us-gaap:StockholdersEquity
<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><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>Paid-in Capital</td><td></td><td>Re...
table
3.0
monetaryItemType
table: <entity> 3.0 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:StockholdersEquity
<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><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td>Paid-in Capital</td><td></td><td>Re...
table
4884.6
monetaryItemType
table: <entity> 4884.6 </entity> <entity type> monetaryItemType </entity type> <context> TOTAL COMMON SHAREHOLDER’S EQUITY – DECEMBER 31, 2024 | $ | 2,092.4 | $ | 2,795.2 | $ | ( 3.0 ) | $ | 4,884.6 </context>
us-gaap:StockholdersEquity
<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></tr><tr><td></td><td></td><td>December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>CURRENT ASSETS</td><td></td><td></td><td></td><td><...
table
0.1
monetaryItemType
table: <entity> 0.1 </entity> <entity type> monetaryItemType </entity type> <context> Cash and Cash Equivalents | $ | 0.1 | $ | 0.1 </context>
us-gaap:CashAndCashEquivalentsAtCarryingValue
<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></tr><tr><td></td><td></td><td>December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>CURRENT ASSETS</td><td></td><td></td><td></td><td><...
table
23.5
monetaryItemType
table: <entity> 23.5 </entity> <entity type> monetaryItemType </entity type> <context> Restricted Cash Restricted Cash (December 31, 2024 and 2023 Amounts Include $ 23.5 and $ 34 , Respectively, Related to Transition Funding and Restoration Funding) (December 31, 2024 and 2023 Amounts Include $ 23.5 and $ 34 , Respecti...
us-gaap:RestrictedCashAndCashEquivalentsAtCarryingValue
<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></tr><tr><td></td><td></td><td>December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>CURRENT ASSETS</td><td></td><td></td><td></td><td><...
table
34
monetaryItemType
table: <entity> 34 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:RestrictedCashAndCashEquivalentsAtCarryingValue
<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></tr><tr><td></td><td></td><td>December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>CURRENT ASSETS</td><td></td><td></td><td></td><td><...
table
34.0
monetaryItemType
table: <entity> 34.0 </entity> <entity type> monetaryItemType </entity type> <context> Restricted Cash Restricted Cash (December 31, 2024 and 2023 Amounts Include $ 23.5 and $ 34 , Respectively, Related to Transition Funding and Restoration Funding) (December 31, 2024 and 2023 Amounts Include $ 23.5 and $ 34 , Respecti...
us-gaap:RestrictedCashAndCashEquivalentsAtCarryingValue
<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></tr><tr><td></td><td></td><td>December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>CURRENT ASSETS</td><td></td><td></td><td></td><td><...
table
7.2
monetaryItemType
table: <entity> 7.2 </entity> <entity type> monetaryItemType </entity type> <context> Advances to Affiliates | 7.2 | 7.1 </context>
us-gaap:AdvancesToAffiliate
<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></tr><tr><td></td><td></td><td>December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>CURRENT ASSETS</td><td></td><td></td><td></td><td><...
table
7.1
monetaryItemType
table: <entity> 7.1 </entity> <entity type> monetaryItemType </entity type> <context> Advances to Affiliates | 7.2 | 7.1 </context>
us-gaap:AdvancesToAffiliate
<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></tr><tr><td></td><td></td><td>December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>CURRENT ASSETS</td><td></td><td></td><td></td><td><...
table
182.8
monetaryItemType
table: <entity> 182.8 </entity> <entity type> monetaryItemType </entity type> <context> Customers | 182.8 | 176.5 </context>
us-gaap:AccountsReceivableGrossCurrent
<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></tr><tr><td></td><td></td><td>December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>CURRENT ASSETS</td><td></td><td></td><td></td><td><...
table
176.5
monetaryItemType
table: <entity> 176.5 </entity> <entity type> monetaryItemType </entity type> <context> Customers | 182.8 | 176.5 </context>
us-gaap:AccountsReceivableGrossCurrent
<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></tr><tr><td></td><td></td><td>December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>CURRENT ASSETS</td><td></td><td></td><td></td><td><...
table
10.7
monetaryItemType
table: <entity> 10.7 </entity> <entity type> monetaryItemType </entity type> <context> Affiliated Companies | 10.7 | 23.8 </context>
us-gaap:AccountsAndOtherReceivablesNetCurrent
<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></tr><tr><td></td><td></td><td>December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>CURRENT ASSETS</td><td></td><td></td><td></td><td><...
table
23.8
monetaryItemType
table: <entity> 23.8 </entity> <entity type> monetaryItemType </entity type> <context> Affiliated Companies | 10.7 | 23.8 </context>
us-gaap:AccountsAndOtherReceivablesNetCurrent
<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></tr><tr><td></td><td></td><td>December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>CURRENT ASSETS</td><td></td><td></td><td></td><td><...
table
97.2
monetaryItemType
table: <entity> 97.2 </entity> <entity type> monetaryItemType </entity type> <context> Accrued Unbilled Revenues | 97.2 | 82.3 </context>
us-gaap:UnbilledReceivablesCurrent
<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></tr><tr><td></td><td></td><td>December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>CURRENT ASSETS</td><td></td><td></td><td></td><td><...
table
82.3
monetaryItemType
table: <entity> 82.3 </entity> <entity type> monetaryItemType </entity type> <context> Accrued Unbilled Revenues | 97.2 | 82.3 </context>
us-gaap:UnbilledReceivablesCurrent
<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></tr><tr><td></td><td></td><td>December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>CURRENT ASSETS</td><td></td><td></td><td></td><td><...
table
0.3
monetaryItemType
table: <entity> 0.3 </entity> <entity type> monetaryItemType </entity type> <context> Miscellaneous | 0.3 | 0.8 </context>
us-gaap:OtherReceivables
<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></tr><tr><td></td><td></td><td>December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>CURRENT ASSETS</td><td></td><td></td><td></td><td><...
table
0.8
monetaryItemType
table: <entity> 0.8 </entity> <entity type> monetaryItemType </entity type> <context> Miscellaneous | 0.3 | 0.8 </context>
us-gaap:OtherReceivables
<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></tr><tr><td></td><td></td><td>December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>CURRENT ASSETS</td><td></td><td></td><td></td><td><...
table
4.3
monetaryItemType
table: <entity> 4.3 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent
<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></tr><tr><td></td><td></td><td>December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>CURRENT ASSETS</td><td></td><td></td><td></td><td><...
table
4.9
monetaryItemType
table: <entity> 4.9 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent
<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></tr><tr><td></td><td></td><td>December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>CURRENT ASSETS</td><td></td><td></td><td></td><td><...
table
286.7
monetaryItemType
table: <entity> 286.7 </entity> <entity type> monetaryItemType </entity type> <context> Total Accounts Receivable | 286.7 | 278.5 </context>
us-gaap:AccountsReceivableNetCurrent
<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></tr><tr><td></td><td></td><td>December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>CURRENT ASSETS</td><td></td><td></td><td></td><td><...
table
278.5
monetaryItemType
table: <entity> 278.5 </entity> <entity type> monetaryItemType </entity type> <context> Total Accounts Receivable | 286.7 | 278.5 </context>
us-gaap:AccountsReceivableNetCurrent
<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></tr><tr><td></td><td></td><td>December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>CURRENT ASSETS</td><td></td><td></td><td></td><td><...
table
169.5
monetaryItemType
table: <entity> 169.5 </entity> <entity type> monetaryItemType </entity type> <context> Materials and Supplies | 169.5 | 190.4 </context>
us-gaap:OtherInventorySupplies
<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></tr><tr><td></td><td></td><td>December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>CURRENT ASSETS</td><td></td><td></td><td></td><td><...
table
190.4
monetaryItemType
table: <entity> 190.4 </entity> <entity type> monetaryItemType </entity type> <context> Materials and Supplies | 169.5 | 190.4 </context>
us-gaap:OtherInventorySupplies
<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></tr><tr><td></td><td></td><td>December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>CURRENT ASSETS</td><td></td><td></td><td></td><td><...
table
13.4
monetaryItemType
table: <entity> 13.4 </entity> <entity type> monetaryItemType </entity type> <context> Prepayments and Other Current Assets | 13.4 | 10.0 </context>
us-gaap:PrepaidExpenseAndOtherAssetsCurrent
<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></tr><tr><td></td><td></td><td>December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>CURRENT ASSETS</td><td></td><td></td><td></td><td><...
table
10.0
monetaryItemType
table: <entity> 10.0 </entity> <entity type> monetaryItemType </entity type> <context> Prepayments and Other Current Assets | 13.4 | 10.0 </context>
us-gaap:PrepaidExpenseAndOtherAssetsCurrent
<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></tr><tr><td></td><td></td><td>December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>CURRENT ASSETS</td><td></td><td></td><td></td><td><...
table
500.4
monetaryItemType
table: <entity> 500.4 </entity> <entity type> monetaryItemType </entity type> <context> TOTAL CURRENT ASSETS | 500.4 | 520.1 </context>
us-gaap:AssetsCurrent
<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></tr><tr><td></td><td></td><td>December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>CURRENT ASSETS</td><td></td><td></td><td></td><td><...
table
520.1
monetaryItemType
table: <entity> 520.1 </entity> <entity type> monetaryItemType </entity type> <context> TOTAL CURRENT ASSETS | 500.4 | 520.1 </context>
us-gaap:AssetsCurrent
<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></tr><tr><td></td><td></td><td>December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>CURRENT ASSETS</td><td></td><td></td><td></td><td><...
table
1175.7
monetaryItemType
table: <entity> 1175.7 </entity> <entity type> monetaryItemType </entity type> <context> Other Property, Plant and Equipment | 1,175.7 | 1,145.9 </context>
us-gaap:PropertyPlantAndEquipmentOther
<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></tr><tr><td></td><td></td><td>December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>CURRENT ASSETS</td><td></td><td></td><td></td><td><...
table
1145.9
monetaryItemType
table: <entity> 1145.9 </entity> <entity type> monetaryItemType </entity type> <context> Other Property, Plant and Equipment | 1,175.7 | 1,145.9 </context>
us-gaap:PropertyPlantAndEquipmentOther
<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></tr><tr><td></td><td></td><td>December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>CURRENT ASSETS</td><td></td><td></td><td></td><td><...
table
1118.0
monetaryItemType
table: <entity> 1118.0 </entity> <entity type> monetaryItemType </entity type> <context> Construction Work in Progress | 1,118.0 | 904.6 </context>
us-gaap:ConstructionInProgressGross
<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></tr><tr><td></td><td></td><td>December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>CURRENT ASSETS</td><td></td><td></td><td></td><td><...
table
904.6
monetaryItemType
table: <entity> 904.6 </entity> <entity type> monetaryItemType </entity type> <context> Construction Work in Progress | 1,118.0 | 904.6 </context>
us-gaap:ConstructionInProgressGross
<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></tr><tr><td></td><td></td><td>December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>CURRENT ASSETS</td><td></td><td></td><td></td><td><...
table
16090.4
monetaryItemType
table: <entity> 16090.4 </entity> <entity type> monetaryItemType </entity type> <context> Total Property, Plant and Equipment | 16,090.4 | 14,661.9 </context>
us-gaap:PropertyPlantAndEquipmentGross
<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></tr><tr><td></td><td></td><td>December 31,</td></tr><tr><td></td><td></td><td>2024</td><td></td><td>2023</td></tr><tr><td>CURRENT ASSETS</td><td></td><td></td><td></td><td><...
table
14661.9
monetaryItemType
table: <entity> 14661.9 </entity> <entity type> monetaryItemType </entity type> <context> Total Property, Plant and Equipment | 16,090.4 | 14,661.9 </context>
us-gaap:PropertyPlantAndEquipmentGross