context
stringlengths
21
24.6k
category
stringclasses
2 values
entity
stringlengths
1
12
entity_type
stringclasses
5 values
query
stringlengths
97
3.31k
answer
stringlengths
12
168
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Deferred Income Tax Assets and Liabilities</td><td></td><td></td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Deferred Income Tax Assets</td><...
table
637.1
monetaryItemType
table: <entity> 637.1 </entity> <entity type> monetaryItemType </entity type> <context> Total Deferred Income Tax Assets | $ 637.1 | $ 706.7 </context>
us-gaap:DeferredTaxAssetsNet
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Deferred Income Tax Assets and Liabilities</td><td></td><td></td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Deferred Income Tax Assets</td><...
table
706.7
monetaryItemType
table: <entity> 706.7 </entity> <entity type> monetaryItemType </entity type> <context> Total Deferred Income Tax Assets | $ 637.1 | $ 706.7 </context>
us-gaap:DeferredTaxAssetsNet
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Deferred Income Tax Assets and Liabilities</td><td></td><td></td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Deferred Income Tax Assets</td><...
table
619.7
monetaryItemType
table: <entity> 619.7 </entity> <entity type> monetaryItemType </entity type> <context> Property-Related | 619.7 | 632.0 </context>
us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Deferred Income Tax Assets and Liabilities</td><td></td><td></td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Deferred Income Tax Assets</td><...
table
632.0
monetaryItemType
table: <entity> 632.0 </entity> <entity type> monetaryItemType </entity type> <context> Property-Related | 619.7 | 632.0 </context>
us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Deferred Income Tax Assets and Liabilities</td><td></td><td></td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Deferred Income Tax Assets</td><...
table
29.0
monetaryItemType
table: <entity> 29.0 </entity> <entity type> monetaryItemType </entity type> <context> Unamortized Investment Tax Credits | 29.0 | 29.6 </context>
us-gaap:AccumulatedDeferredInvestmentTaxCredit
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Deferred Income Tax Assets and Liabilities</td><td></td><td></td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Deferred Income Tax Assets</td><...
table
29.6
monetaryItemType
table: <entity> 29.6 </entity> <entity type> monetaryItemType </entity type> <context> Unamortized Investment Tax Credits | 29.0 | 29.6 </context>
us-gaap:AccumulatedDeferredInvestmentTaxCredit
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Deferred Income Tax Assets and Liabilities</td><td></td><td></td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Deferred Income Tax Assets</td><...
table
24.4
monetaryItemType
table: <entity> 24.4 </entity> <entity type> monetaryItemType </entity type> <context> Regulatory Assets | 24.4 | 25.3 </context>
us-gaap:DeferredTaxLiabilitiesRegulatoryAssets
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Deferred Income Tax Assets and Liabilities</td><td></td><td></td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Deferred Income Tax Assets</td><...
table
25.3
monetaryItemType
table: <entity> 25.3 </entity> <entity type> monetaryItemType </entity type> <context> Regulatory Assets | 24.4 | 25.3 </context>
us-gaap:DeferredTaxLiabilitiesRegulatoryAssets
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Deferred Income Tax Assets and Liabilities</td><td></td><td></td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Deferred Income Tax Assets</td><...
table
890.5
monetaryItemType
table: <entity> 890.5 </entity> <entity type> monetaryItemType </entity type> <context> Total Deferred Income Tax Liabilities | $ 890.5 | $ 899.4 </context>
us-gaap:DeferredIncomeTaxLiabilities
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Deferred Income Tax Assets and Liabilities</td><td></td><td></td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Deferred Income Tax Assets</td><...
table
899.4
monetaryItemType
table: <entity> 899.4 </entity> <entity type> monetaryItemType </entity type> <context> Total Deferred Income Tax Liabilities | $ 890.5 | $ 899.4 </context>
us-gaap:DeferredIncomeTaxLiabilities
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Deferred Income Tax Assets and Liabilities</td><td></td><td></td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Deferred Income Tax Assets</td><...
table
253.4
monetaryItemType
table: <entity> 253.4 </entity> <entity type> monetaryItemType </entity type> <context> Net Deferred Income Taxes (a) Net Deferred Income Taxes (a) | $ 253.4 | $ 192.7 </context>
us-gaap:DeferredTaxLiabilities
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Deferred Income Tax Assets and Liabilities</td><td></td><td></td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Deferred Income Tax Assets</td><...
table
192.7
monetaryItemType
table: <entity> 192.7 </entity> <entity type> monetaryItemType </entity type> <context> Net Deferred Income Taxes (a) Net Deferred Income Taxes (a) | $ 253.4 | $ 192.7 </context>
us-gaap:DeferredTaxLiabilities
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>NOL and Tax Credit Carryforwards</td><td></td><td></td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td></td><td></td><td></td></tr><tr><td>Federa...
table
424.7
monetaryItemType
table: <entity> 424.7 </entity> <entity type> monetaryItemType </entity type> <context> Federal Tax Credit Carryforwards | $ 424.7 | $ 480.4 </context>
us-gaap:TaxCreditCarryforwardAmount
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>NOL and Tax Credit Carryforwards</td><td></td><td></td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td></td><td></td><td></td></tr><tr><td>Federa...
table
480.4
monetaryItemType
table: <entity> 480.4 </entity> <entity type> monetaryItemType </entity type> <context> Federal Tax Credit Carryforwards | $ 424.7 | $ 480.4 </context>
us-gaap:TaxCreditCarryforwardAmount
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>NOL and Tax Credit Carryforwards</td><td></td><td></td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td></td><td></td><td></td></tr><tr><td>Federa...
table
258.8
monetaryItemType
table: <entity> 258.8 </entity> <entity type> monetaryItemType </entity type> <context> State NOL Carryforwards (a) State NOL Carryforwards (a) | $ 258.8 | $ 280.9 </context>
us-gaap:OperatingLossCarryforwards
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>NOL and Tax Credit Carryforwards</td><td></td><td></td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td></td><td></td><td></td></tr><tr><td>Federa...
table
280.9
monetaryItemType
table: <entity> 280.9 </entity> <entity type> monetaryItemType </entity type> <context> State NOL Carryforwards (a) State NOL Carryforwards (a) | $ 258.8 | $ 280.9 </context>
us-gaap:OperatingLossCarryforwards
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>NOL and Tax Credit Carryforwards</td><td></td><td></td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td></td><td></td><td></td></tr><tr><td>Federa...
table
19.9
monetaryItemType
table: <entity> 19.9 </entity> <entity type> monetaryItemType </entity type> <context> State Tax Credit Carryforwards (b) State Tax Credit Carryforwards (b) | $ 19.9 | $ 21.5 </context>
us-gaap:TaxCreditCarryforwardAmount
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>NOL and Tax Credit Carryforwards</td><td></td><td></td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td></td><td></td><td></td></tr><tr><td>Federa...
table
21.5
monetaryItemType
table: <entity> 21.5 </entity> <entity type> monetaryItemType </entity type> <context> State Tax Credit Carryforwards (b) State Tax Credit Carryforwards (b) | $ 19.9 | $ 21.5 </context>
us-gaap:TaxCreditCarryforwardAmount
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Gross Unrecognized Income Tax Benefits</td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions</td><td></td><td></td><td></td></tr><tr><td>Balance at January 1</td><td>$ 1.1</td><...
table
1.1
monetaryItemType
table: <entity> 1.1 </entity> <entity type> monetaryItemType </entity type> <context> Balance at January 1 | $ 1.1 | $ 1.3 | $ 1.3 </context>
us-gaap:UnrecognizedTaxBenefits
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Gross Unrecognized Income Tax Benefits</td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions</td><td></td><td></td><td></td></tr><tr><td>Balance at January 1</td><td>$ 1.1</td><...
table
1.3
monetaryItemType
table: <entity> 1.3 </entity> <entity type> monetaryItemType </entity type> <context> Balance at January 1 | $ 1.1 | $ 1.3 | $ 1.3 </context>
us-gaap:UnrecognizedTaxBenefits
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Gross Unrecognized Income Tax Benefits</td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions</td><td></td><td></td><td></td></tr><tr><td>Balance at January 1</td><td>$ 1.1</td><...
table
monetaryItemType
table: <entity> — </entity> <entity type> monetaryItemType </entity type> <context> Reductions for Tax Positions Related to Prior Years | — | ( 0.2 ) | — </context>
us-gaap:UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Gross Unrecognized Income Tax Benefits</td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions</td><td></td><td></td><td></td></tr><tr><td>Balance at January 1</td><td>$ 1.1</td><...
table
0.2
monetaryItemType
table: <entity> 0.2 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Pension Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td>$ 701.7</td><td><...
table
701.7
monetaryItemType
table: <entity> 701.7 </entity> <entity type> monetaryItemType </entity type> <context> Accumulated Benefit Obligation | $ 701.7 | $ 729.5 </context>
us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Pension Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td>$ 701.7</td><td><...
table
729.5
monetaryItemType
table: <entity> 729.5 </entity> <entity type> monetaryItemType </entity type> <context> Accumulated Benefit Obligation | $ 701.7 | $ 729.5 </context>
us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Pension Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td>$ 701.7</td><td><...
table
746.3
monetaryItemType
table: <entity> 746.3 </entity> <entity type> monetaryItemType </entity type> <context> Obligation, Beginning of Year | $ 746.3 | $ 739.7 </context>
us-gaap:DefinedBenefitPlanBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Pension Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td>$ 701.7</td><td><...
table
739.7
monetaryItemType
table: <entity> 739.7 </entity> <entity type> monetaryItemType </entity type> <context> Obligation, Beginning of Year | $ 746.3 | $ 739.7 </context>
us-gaap:DefinedBenefitPlanBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Pension Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td>$ 701.7</td><td><...
table
6.6
monetaryItemType
table: <entity> 6.6 </entity> <entity type> monetaryItemType </entity type> <context> Service Cost | 6.6 | 6.5 </context>
us-gaap:DefinedBenefitPlanServiceCost
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Pension Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td>$ 701.7</td><td><...
table
6.5
monetaryItemType
table: <entity> 6.5 </entity> <entity type> monetaryItemType </entity type> <context> Service Cost | 6.6 | 6.5 </context>
us-gaap:DefinedBenefitPlanServiceCost
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Pension Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td>$ 701.7</td><td><...
table
38.6
monetaryItemType
table: <entity> 38.6 </entity> <entity type> monetaryItemType </entity type> <context> Interest Cost | 38.6 | 40.5 </context>
us-gaap:DefinedBenefitPlanInterestCost
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Pension Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td>$ 701.7</td><td><...
table
40.5
monetaryItemType
table: <entity> 40.5 </entity> <entity type> monetaryItemType </entity type> <context> Interest Cost | 38.6 | 40.5 </context>
us-gaap:DefinedBenefitPlanInterestCost
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Pension Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td>$ 701.7</td><td><...
table
17.1
monetaryItemType
table: <entity> 17.1 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:DefinedBenefitPlanActuarialGainLoss
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Pension Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td>$ 701.7</td><td><...
table
13.9
monetaryItemType
table: <entity> 13.9 </entity> <entity type> monetaryItemType </entity type> <context> Actuarial (Gain) Loss (a) Actuarial (Gain) Loss (a) | ( 17.1 ) | 13.9 </context>
us-gaap:DefinedBenefitPlanActuarialGainLoss
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Pension Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td>$ 701.7</td><td><...
table
61.9
monetaryItemType
table: <entity> 61.9 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:DefinedBenefitPlanBenefitObligationBenefitsPaid
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Pension Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td>$ 701.7</td><td><...
table
60.9
monetaryItemType
table: <entity> 60.9 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:DefinedBenefitPlanBenefitObligationBenefitsPaid
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Pension Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td>$ 701.7</td><td><...
table
7.0
monetaryItemType
table: <entity> 7.0 </entity> <entity type> monetaryItemType </entity type> <context> Participant Contributions | 7.0 | 6.6 </context>
us-gaap:DefinedBenefitPlanBenefitObligationContributionsByPlanParticipant
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Pension Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td>$ 701.7</td><td><...
table
6.6
monetaryItemType
table: <entity> 6.6 </entity> <entity type> monetaryItemType </entity type> <context> Service Cost | 6.6 | 6.5 </context>
us-gaap:DefinedBenefitPlanBenefitObligationContributionsByPlanParticipant
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Pension Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td>$ 701.7</td><td><...
table
719.5
monetaryItemType
table: <entity> 719.5 </entity> <entity type> monetaryItemType </entity type> <context> Obligation, End of Year | $ 719.5 | $ 746.3 </context>
us-gaap:DefinedBenefitPlanBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Pension Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td>$ 701.7</td><td><...
table
589.0
monetaryItemType
table: <entity> 589.0 </entity> <entity type> monetaryItemType </entity type> <context> Fair Value, Beginning of Year | $ 589.0 | $ 568.6 </context>
us-gaap:DefinedBenefitPlanFairValueOfPlanAssets
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Pension Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td>$ 701.7</td><td><...
table
568.6
monetaryItemType
table: <entity> 568.6 </entity> <entity type> monetaryItemType </entity type> <context> Fair Value, Beginning of Year | $ 589.0 | $ 568.6 </context>
us-gaap:DefinedBenefitPlanFairValueOfPlanAssets
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Pension Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td>$ 701.7</td><td><...
table
43.0
monetaryItemType
table: <entity> 43.0 </entity> <entity type> monetaryItemType </entity type> <context> Actual Return on Plan Assets | 43.0 | 55.1 </context>
us-gaap:DefinedBenefitPlanActualReturnOnPlanAssets
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Pension Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td>$ 701.7</td><td><...
table
55.1
monetaryItemType
table: <entity> 55.1 </entity> <entity type> monetaryItemType </entity type> <context> Actual Return on Plan Assets | 43.0 | 55.1 </context>
us-gaap:DefinedBenefitPlanActualReturnOnPlanAssets
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Pension Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td>$ 701.7</td><td><...
table
34.0
monetaryItemType
table: <entity> 34.0 </entity> <entity type> monetaryItemType </entity type> <context> Employer Contribution (b) Employer Contribution (b) | 34.0 | 26.2 </context>
us-gaap:DefinedBenefitPlanContributionsByEmployer
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Pension Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td>$ 701.7</td><td><...
table
26.2
monetaryItemType
table: <entity> 26.2 </entity> <entity type> monetaryItemType </entity type> <context> Employer Contribution (b) Employer Contribution (b) | 34.0 | 26.2 </context>
us-gaap:DefinedBenefitPlanContributionsByEmployer
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Pension Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td>$ 701.7</td><td><...
table
61.9
monetaryItemType
table: <entity> 61.9 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:DefinedBenefitPlanPlanAssetsBenefitsPaid
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Pension Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td>$ 701.7</td><td><...
table
60.9
monetaryItemType
table: <entity> 60.9 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:DefinedBenefitPlanPlanAssetsBenefitsPaid
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Pension Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td>$ 701.7</td><td><...
table
604.1
monetaryItemType
table: <entity> 604.1 </entity> <entity type> monetaryItemType </entity type> <context> Fair Value, End of Year | $ 604.1 | $ 589.0 </context>
us-gaap:DefinedBenefitPlanFairValueOfPlanAssets
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Pension Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td>$ 701.7</td><td><...
table
115.4
monetaryItemType
table: <entity> 115.4 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:DefinedBenefitPlanFundedStatusOfPlan
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Pension Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td>$ 701.7</td><td><...
table
157.3
monetaryItemType
table: <entity> 157.3 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:DefinedBenefitPlanFundedStatusOfPlan
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Pension Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td>$ 701.7</td><td><...
table
1.9
monetaryItemType
table: <entity> 1.9 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Pension Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td>$ 701.7</td><td><...
table
2.1
monetaryItemType
table: <entity> 2.1 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Pension Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td>$ 701.7</td><td><...
table
113.5
monetaryItemType
table: <entity> 113.5 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Pension Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Accumulated Benefit Obligation</td><td>$ 701.7</td><td><...
table
155.2
monetaryItemType
table: <entity> 155.2 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Reconciliation of Net Pension Amounts Recognized in Consolidated Balance Sheet</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Net Loss</td><...
table
235.2
monetaryItemType
table: <entity> 235.2 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Reconciliation of Net Pension Amounts Recognized in Consolidated Balance Sheet</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Net Loss</td><...
table
256.9
monetaryItemType
table: <entity> 256.9 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Reconciliation of Net Pension Amounts Recognized in Consolidated Balance Sheet</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Net Loss</td><...
table
0.1
monetaryItemType
table: <entity> 0.1 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Reconciliation of Net Pension Amounts Recognized in Consolidated Balance Sheet</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Net Loss</td><...
table
monetaryItemType
table: <entity> — </entity> <entity type> monetaryItemType </entity type> <context> Prior Service Cost | ( 0.1 ) | — </context>
us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Reconciliation of Net Pension Amounts Recognized in Consolidated Balance Sheet</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Net Loss</td><...
table
115.4
monetaryItemType
table: <entity> 115.4 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:DefinedBenefitPlanFundedStatusOfPlan
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Reconciliation of Net Pension Amounts Recognized in Consolidated Balance Sheet</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Net Loss</td><...
table
157.3
monetaryItemType
table: <entity> 157.3 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:DefinedBenefitPlanFundedStatusOfPlan
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Components of Net Periodic Pension Cost</td></tr><tr><td>Year Ended December 31</td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions</td><td></td><td></td><td></td></tr><tr><td...
table
6.6
monetaryItemType
table: <entity> 6.6 </entity> <entity type> monetaryItemType </entity type> <context> Service Cost | $ 6.6 | $ 6.5 | $ 9.3 </context>
us-gaap:DefinedBenefitPlanServiceCost
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Components of Net Periodic Pension Cost</td></tr><tr><td>Year Ended December 31</td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions</td><td></td><td></td><td></td></tr><tr><td...
table
6.5
monetaryItemType
table: <entity> 6.5 </entity> <entity type> monetaryItemType </entity type> <context> Service Cost | $ 6.6 | $ 6.5 | $ 9.3 </context>
us-gaap:DefinedBenefitPlanServiceCost
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Components of Net Periodic Pension Cost</td></tr><tr><td>Year Ended December 31</td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions</td><td></td><td></td><td></td></tr><tr><td...
table
9.3
monetaryItemType
table: <entity> 9.3 </entity> <entity type> monetaryItemType </entity type> <context> Service Cost | $ 6.6 | $ 6.5 | $ 9.3 </context>
us-gaap:DefinedBenefitPlanServiceCost
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Components of Net Periodic Pension Cost</td></tr><tr><td>Year Ended December 31</td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions</td><td></td><td></td><td></td></tr><tr><td...
table
38.6
monetaryItemType
table: <entity> 38.6 </entity> <entity type> monetaryItemType </entity type> <context> Interest Cost | 38.6 | 40.5 | 27.2 </context>
us-gaap:DefinedBenefitPlanInterestCost
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Components of Net Periodic Pension Cost</td></tr><tr><td>Year Ended December 31</td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions</td><td></td><td></td><td></td></tr><tr><td...
table
40.5
monetaryItemType
table: <entity> 40.5 </entity> <entity type> monetaryItemType </entity type> <context> Interest Cost | 38.6 | 40.5 | 27.2 </context>
us-gaap:DefinedBenefitPlanInterestCost
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Components of Net Periodic Pension Cost</td></tr><tr><td>Year Ended December 31</td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions</td><td></td><td></td><td></td></tr><tr><td...
table
27.2
monetaryItemType
table: <entity> 27.2 </entity> <entity type> monetaryItemType </entity type> <context> Interest Cost | 38.6 | 40.5 | 27.2 </context>
us-gaap:DefinedBenefitPlanInterestCost
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Components of Net Periodic Pension Cost</td></tr><tr><td>Year Ended December 31</td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions</td><td></td><td></td><td></td></tr><tr><td...
table
44.8
monetaryItemType
table: <entity> 44.8 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Components of Net Periodic Pension Cost</td></tr><tr><td>Year Ended December 31</td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions</td><td></td><td></td><td></td></tr><tr><td...
table
43.8
monetaryItemType
table: <entity> 43.8 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Components of Net Periodic Pension Cost</td></tr><tr><td>Year Ended December 31</td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions</td><td></td><td></td><td></td></tr><tr><td...
table
41.5
monetaryItemType
table: <entity> 41.5 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Components of Net Periodic Pension Cost</td></tr><tr><td>Year Ended December 31</td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions</td><td></td><td></td><td></td></tr><tr><td...
table
6.5
monetaryItemType
table: <entity> 6.5 </entity> <entity type> monetaryItemType </entity type> <context> Service Cost | $ 6.6 | $ 6.5 | $ 9.3 </context>
us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Components of Net Periodic Pension Cost</td></tr><tr><td>Year Ended December 31</td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions</td><td></td><td></td><td></td></tr><tr><td...
table
5.8
monetaryItemType
table: <entity> 5.8 </entity> <entity type> monetaryItemType </entity type> <context> Amortization of Loss | 6.5 | 5.8 | 11.4 </context>
us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Components of Net Periodic Pension Cost</td></tr><tr><td>Year Ended December 31</td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions</td><td></td><td></td><td></td></tr><tr><td...
table
11.4
monetaryItemType
table: <entity> 11.4 </entity> <entity type> monetaryItemType </entity type> <context> Amortization of Loss | 6.5 | 5.8 | 11.4 </context>
us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Components of Net Periodic Pension Cost</td></tr><tr><td>Year Ended December 31</td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions</td><td></td><td></td><td></td></tr><tr><td...
table
0.1
monetaryItemType
table: <entity> 0.1 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Components of Net Periodic Pension Cost</td></tr><tr><td>Year Ended December 31</td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions</td><td></td><td></td><td></td></tr><tr><td...
table
6.8
monetaryItemType
table: <entity> 6.8 </entity> <entity type> monetaryItemType </entity type> <context> Net Pension Cost | $ 6.8 | $ 8.9 | $ 6.3 </context>
us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Components of Net Periodic Pension Cost</td></tr><tr><td>Year Ended December 31</td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions</td><td></td><td></td><td></td></tr><tr><td...
table
8.9
monetaryItemType
table: <entity> 8.9 </entity> <entity type> monetaryItemType </entity type> <context> Net Pension Cost | $ 6.8 | $ 8.9 | $ 6.3 </context>
us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Components of Net Periodic Pension Cost</td></tr><tr><td>Year Ended December 31</td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions</td><td></td><td></td><td></td></tr><tr><td...
table
6.3
monetaryItemType
table: <entity> 6.3 </entity> <entity type> monetaryItemType </entity type> <context> Net Pension Cost | $ 6.8 | $ 8.9 | $ 6.3 </context>
us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Changes in Pension Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income and Regulatory Assets or Liabilities</td></tr><tr><td>Year Ended December 31</td><td>2024</td><td>2023</td></tr><...
table
15.2
monetaryItemType
table: <entity> 15.2 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Changes in Pension Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income and Regulatory Assets or Liabilities</td></tr><tr><td>Year Ended December 31</td><td>2024</td><td>2023</td></tr><...
table
2.5
monetaryItemType
table: <entity> 2.5 </entity> <entity type> monetaryItemType </entity type> <context> Net (Gain) Loss | $( 15.2 ) | $ 2.5 </context>
us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Changes in Pension Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income and Regulatory Assets or Liabilities</td></tr><tr><td>Year Ended December 31</td><td>2024</td><td>2023</td></tr><...
table
0.1
monetaryItemType
table: <entity> 0.1 </entity> <entity type> monetaryItemType </entity type> <context> Amortization of Prior Service Credit | 0.1 | 0.1 </context>
us-gaap:OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Changes in Pension Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income and Regulatory Assets or Liabilities</td></tr><tr><td>Year Ended December 31</td><td>2024</td><td>2023</td></tr><...
table
6.5
monetaryItemType
table: <entity> 6.5 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Changes in Pension Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income and Regulatory Assets or Liabilities</td></tr><tr><td>Year Ended December 31</td><td>2024</td><td>2023</td></tr><...
table
5.7
monetaryItemType
table: <entity> 5.7 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Changes in Pension Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income and Regulatory Assets or Liabilities</td></tr><tr><td>Year Ended December 31</td><td>2024</td><td>2023</td></tr><...
table
21.6
monetaryItemType
table: <entity> 21.6 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Other Changes in Pension Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income and Regulatory Assets or Liabilities</td></tr><tr><td>Year Ended December 31</td><td>2024</td><td>2023</td></tr><...
table
3.1
monetaryItemType
table: <entity> 3.1 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Information for Pension Plans with an Accumulated Benefit Obligation in Excess of Plan Assets</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td...
table
719.5
monetaryItemType
table: <entity> 719.5 </entity> <entity type> monetaryItemType </entity type> <context> Projected Benefit Obligation | $ 719.5 | $ 746.3 </context>
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Information for Pension Plans with an Accumulated Benefit Obligation in Excess of Plan Assets</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td...
table
746.3
monetaryItemType
table: <entity> 746.3 </entity> <entity type> monetaryItemType </entity type> <context> Projected Benefit Obligation | $ 719.5 | $ 746.3 </context>
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Information for Pension Plans with an Accumulated Benefit Obligation in Excess of Plan Assets</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td...
table
701.7
monetaryItemType
table: <entity> 701.7 </entity> <entity type> monetaryItemType </entity type> <context> Accumulated Benefit Obligation | $ 701.7 | $ 729.5 </context>
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Information for Pension Plans with an Accumulated Benefit Obligation in Excess of Plan Assets</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td...
table
729.5
monetaryItemType
table: <entity> 729.5 </entity> <entity type> monetaryItemType </entity type> <context> Accumulated Benefit Obligation | $ 701.7 | $ 729.5 </context>
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Information for Pension Plans with an Accumulated Benefit Obligation in Excess of Plan Assets</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td...
table
604.1
monetaryItemType
table: <entity> 604.1 </entity> <entity type> monetaryItemType </entity type> <context> Fair Value of Plan Assets | $ 604.1 | $ 589.0 </context>
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Information for Pension Plans with an Accumulated Benefit Obligation in Excess of Plan Assets</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td...
table
589.0
monetaryItemType
table: <entity> 589.0 </entity> <entity type> monetaryItemType </entity type> <context> Fair Value of Plan Assets | $ 604.1 | $ 589.0 </context>
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Postretirement Health and Life Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Change in Benefit Obligation</td>...
table
73.9
monetaryItemType
table: <entity> 73.9 </entity> <entity type> monetaryItemType </entity type> <context> Obligation, Beginning of Year | $ 73.9 | $ 110.4 </context>
us-gaap:DefinedBenefitPlanBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Postretirement Health and Life Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Change in Benefit Obligation</td>...
table
110.4
monetaryItemType
table: <entity> 110.4 </entity> <entity type> monetaryItemType </entity type> <context> Obligation, Beginning of Year | $ 73.9 | $ 110.4 </context>
us-gaap:DefinedBenefitPlanBenefitObligation
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Postretirement Health and Life Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Change in Benefit Obligation</td>...
table
1.5
monetaryItemType
table: <entity> 1.5 </entity> <entity type> monetaryItemType </entity type> <context> Service Cost | 1.5 | 2.0 </context>
us-gaap:DefinedBenefitPlanServiceCost
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Postretirement Health and Life Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Change in Benefit Obligation</td>...
table
2.0
monetaryItemType
table: <entity> 2.0 </entity> <entity type> monetaryItemType </entity type> <context> Service Cost | 1.5 | 2.0 </context>
us-gaap:DefinedBenefitPlanServiceCost
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Postretirement Health and Life Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Change in Benefit Obligation</td>...
table
3.9
monetaryItemType
table: <entity> 3.9 </entity> <entity type> monetaryItemType </entity type> <context> Interest Cost | 3.9 | 5.6 </context>
us-gaap:DefinedBenefitPlanInterestCost
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Postretirement Health and Life Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Change in Benefit Obligation</td>...
table
5.6
monetaryItemType
table: <entity> 5.6 </entity> <entity type> monetaryItemType </entity type> <context> Interest Cost | 3.9 | 5.6 </context>
us-gaap:DefinedBenefitPlanInterestCost
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Postretirement Health and Life Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Change in Benefit Obligation</td>...
table
1.9
monetaryItemType
table: <entity> 1.9 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:DefinedBenefitPlanActuarialGainLoss
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Postretirement Health and Life Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Change in Benefit Obligation</td>...
table
9.3
monetaryItemType
table: <entity> 9.3 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:DefinedBenefitPlanActuarialGainLoss
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Postretirement Health and Life Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Change in Benefit Obligation</td>...
table
6.4
monetaryItemType
table: <entity> 6.4 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:DefinedBenefitPlanBenefitObligationBenefitsPaid
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Postretirement Health and Life Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Change in Benefit Obligation</td>...
table
8.1
monetaryItemType
table: <entity> 8.1 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:DefinedBenefitPlanBenefitObligationBenefitsPaid
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Postretirement Health and Life Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Change in Benefit Obligation</td>...
table
1.4
monetaryItemType
table: <entity> 1.4 </entity> <entity type> monetaryItemType </entity type> <context> Participant Contributions | 1.4 | 2.4 </context>
us-gaap:DefinedBenefitPlanBenefitObligationContributionsByPlanParticipant
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Postretirement Health and Life Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Change in Benefit Obligation</td>...
table
2.4
monetaryItemType
table: <entity> 2.4 </entity> <entity type> monetaryItemType </entity type> <context> Participant Contributions | 1.4 | 2.4 </context>
us-gaap:DefinedBenefitPlanBenefitObligationContributionsByPlanParticipant
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Postretirement Health and Life Obligation and Funded Status</td></tr><tr><td>As of December 31</td><td>2024</td><td>2023</td></tr><tr><td>Millions</td><td></td><td></td></tr><tr><td>Change in Benefit Obligation</td>...
table
monetaryItemType
table: <entity> — </entity> <entity type> monetaryItemType </entity type> <context> Plan Amendments (b) Plan Amendments (b) | — | ( 29.1 ) </context>
us-gaap:DefinedBenefitPlanPlanAmendments