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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></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
32.6
monetaryItemType
table: <entity> 32.6 </entity> <entity type> monetaryItemType </entity type> <context> Affiliated Companies | 32.6 | 31.0 </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
31.0
monetaryItemType
table: <entity> 31.0 </entity> <entity type> monetaryItemType </entity type> <context> Affiliated Companies | 32.6 | 31.0 </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
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
107.7
monetaryItemType
table: <entity> 107.7 </entity> <entity type> monetaryItemType </entity type> <context> Total Accounts Receivable | 107.7 | 139.4 </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
139.4
monetaryItemType
table: <entity> 139.4 </entity> <entity type> monetaryItemType </entity type> <context> Total Accounts Receivable | 107.7 | 139.4 </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
17.1
monetaryItemType
table: <entity> 17.1 </entity> <entity type> monetaryItemType </entity type> <context> Fuel | 17.1 | 33.7 </context>
us-gaap:InventoryRawMaterials
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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
33.7
monetaryItemType
table: <entity> 33.7 </entity> <entity type> monetaryItemType </entity type> <context> Fuel | 17.1 | 33.7 </context>
us-gaap:InventoryRawMaterials
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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
108.8
monetaryItemType
table: <entity> 108.8 </entity> <entity type> monetaryItemType </entity type> <context> Materials and Supplies | 108.8 | 106.9 </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
106.9
monetaryItemType
table: <entity> 106.9 </entity> <entity type> monetaryItemType </entity type> <context> Materials and Supplies | 108.8 | 106.9 </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
20.6
monetaryItemType
table: <entity> 20.6 </entity> <entity type> monetaryItemType </entity type> <context> Risk Management Assets | 20.6 | 19.0 </context>
us-gaap:DerivativeAssetsCurrent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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
19.0
monetaryItemType
table: <entity> 19.0 </entity> <entity type> monetaryItemType </entity type> <context> Risk Management Assets | 20.6 | 19.0 </context>
us-gaap:DerivativeAssetsCurrent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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
35.5
monetaryItemType
table: <entity> 35.5 </entity> <entity type> monetaryItemType </entity type> <context> Accrued Tax Benefits | 35.5 | 31.0 </context>
us-gaap:IncomeTaxesReceivable
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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
31.0
monetaryItemType
table: <entity> 31.0 </entity> <entity type> monetaryItemType </entity type> <context> Affiliated Companies | 32.6 | 31.0 </context>
us-gaap:IncomeTaxesReceivable
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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
64.7
monetaryItemType
table: <entity> 64.7 </entity> <entity type> monetaryItemType </entity type> <context> Regulatory Asset for Under-Recovered Fuel Costs | 64.7 | 118.3 </context>
us-gaap:RegulatoryAssetsCurrent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></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
118.3
monetaryItemType
table: <entity> 118.3 </entity> <entity type> monetaryItemType </entity type> <context> Regulatory Asset for Under-Recovered Fuel Costs | 64.7 | 118.3 </context>
us-gaap:RegulatoryAssetsCurrent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></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
20.2
monetaryItemType
table: <entity> 20.2 </entity> <entity type> monetaryItemType </entity type> <context> Prepayments and Other Current Assets | 20.2 | 18.7 </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
18.7
monetaryItemType
table: <entity> 18.7 </entity> <entity type> monetaryItemType </entity type> <context> Prepayments and Other Current Assets | 20.2 | 18.7 </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
608.4
monetaryItemType
table: <entity> 608.4 </entity> <entity type> monetaryItemType </entity type> <context> TOTAL CURRENT ASSETS | 608.4 | 469.5 </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
469.5
monetaryItemType
table: <entity> 469.5 </entity> <entity type> monetaryItemType </entity type> <context> TOTAL CURRENT ASSETS | 608.4 | 469.5 </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
550.0
monetaryItemType
table: <entity> 550.0 </entity> <entity type> monetaryItemType </entity type> <context> Other Property, Plant and Equipment | 550.0 | 505.9 </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
505.9
monetaryItemType
table: <entity> 505.9 </entity> <entity type> monetaryItemType </entity type> <context> Other Property, Plant and Equipment | 550.0 | 505.9 </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
378.8
monetaryItemType
table: <entity> 378.8 </entity> <entity type> monetaryItemType </entity type> <context> Construction Work in Progress | 378.8 | 313.7 </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
313.7
monetaryItemType
table: <entity> 313.7 </entity> <entity type> monetaryItemType </entity type> <context> Construction Work in Progress | 378.8 | 313.7 </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
8745.3
monetaryItemType
table: <entity> 8745.3 </entity> <entity type> monetaryItemType </entity type> <context> Total Property, Plant and Equipment | 8,745.3 | 8,194.2 </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
8194.2
monetaryItemType
table: <entity> 8194.2 </entity> <entity type> monetaryItemType </entity type> <context> Total Property, Plant and Equipment | 8,745.3 | 8,194.2 </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
527.8
monetaryItemType
table: <entity> 527.8 </entity> <entity type> monetaryItemType </entity type> <context> Regulatory Assets | 527.8 | 522.7 </context>
us-gaap:RegulatoryAssetsNoncurrent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></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
522.7
monetaryItemType
table: <entity> 522.7 </entity> <entity type> monetaryItemType </entity type> <context> Regulatory Assets | 527.8 | 522.7 </context>
us-gaap:RegulatoryAssetsNoncurrent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></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
106.2
monetaryItemType
table: <entity> 106.2 </entity> <entity type> monetaryItemType </entity type> <context> Operating Lease Assets | 106.2 | 112.8 </context>
us-gaap:OperatingLeaseRightOfUseAsset
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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
112.8
monetaryItemType
table: <entity> 112.8 </entity> <entity type> monetaryItemType </entity type> <context> Operating Lease Assets | 106.2 | 112.8 </context>
us-gaap:OperatingLeaseRightOfUseAsset
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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
769.6
monetaryItemType
table: <entity> 769.6 </entity> <entity type> monetaryItemType </entity type> <context> TOTAL OTHER NONCURRENT ASSETS | 769.6 | 753.1 </context>
us-gaap:OtherAssetsNoncurrent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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
753.1
monetaryItemType
table: <entity> 753.1 </entity> <entity type> monetaryItemType </entity type> <context> TOTAL OTHER NONCURRENT ASSETS | 769.6 | 753.1 </context>
us-gaap:OtherAssetsNoncurrent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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
7910.3
monetaryItemType
table: <entity> 7910.3 </entity> <entity type> monetaryItemType </entity type> <context> TOTAL ASSETS | $ | 7,910.3 | $ | 7,334.9 </context>
us-gaap:Assets
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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
7334.9
monetaryItemType
table: <entity> 7334.9 </entity> <entity type> monetaryItemType </entity type> <context> TOTAL ASSETS | $ | 7,910.3 | $ | 7,334.9 </context>
us-gaap:Assets
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
monetaryItemType
table: <entity> — </entity> <entity type> monetaryItemType </entity type> <context> Advances from Affiliates | $ | — | $ | 54.4 </context>
us-gaap:OtherShortTermBorrowings
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
54.4
monetaryItemType
table: <entity> 54.4 </entity> <entity type> monetaryItemType </entity type> <context> Advances from Affiliates | $ | — | $ | 54.4 </context>
us-gaap:OtherShortTermBorrowings
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
200.5
monetaryItemType
table: <entity> 200.5 </entity> <entity type> monetaryItemType </entity type> <context> General | 200.5 | 159.3 </context>
us-gaap:AccountsPayableCurrent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
159.3
monetaryItemType
table: <entity> 159.3 </entity> <entity type> monetaryItemType </entity type> <context> General | 200.5 | 159.3 </context>
us-gaap:AccountsPayableCurrent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
59.1
monetaryItemType
table: <entity> 59.1 </entity> <entity type> monetaryItemType </entity type> <context> Affiliated Companies | 59.1 | 56.7 </context>
us-gaap:AccountsPayableCurrent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
56.7
monetaryItemType
table: <entity> 56.7 </entity> <entity type> monetaryItemType </entity type> <context> Affiliated Companies | 59.1 | 56.7 </context>
us-gaap:AccountsPayableCurrent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
125.6
monetaryItemType
table: <entity> 125.6 </entity> <entity type> monetaryItemType </entity type> <context> Long-term Debt Due Within One Year – Nonaffiliated | 125.6 | 0.6 </context>
us-gaap:LongTermDebtCurrent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
0.6
monetaryItemType
table: <entity> 0.6 </entity> <entity type> monetaryItemType </entity type> <context> Long-term Debt Due Within One Year – Nonaffiliated | 125.6 | 0.6 </context>
us-gaap:LongTermDebtCurrent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
5.8
monetaryItemType
table: <entity> 5.8 </entity> <entity type> monetaryItemType </entity type> <context> Risk Management Liabilities | 5.8 | 28.9 </context>
us-gaap:DerivativeLiabilitiesCurrent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
28.9
monetaryItemType
table: <entity> 28.9 </entity> <entity type> monetaryItemType </entity type> <context> Risk Management Liabilities | 5.8 | 28.9 </context>
us-gaap:DerivativeLiabilitiesCurrent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
72.9
monetaryItemType
table: <entity> 72.9 </entity> <entity type> monetaryItemType </entity type> <context> Customer Deposits | 72.9 | 81.4 </context>
us-gaap:ContractWithCustomerLiabilityCurrent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
81.4
monetaryItemType
table: <entity> 81.4 </entity> <entity type> monetaryItemType </entity type> <context> Customer Deposits | 72.9 | 81.4 </context>
us-gaap:ContractWithCustomerLiabilityCurrent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
33.4
monetaryItemType
table: <entity> 33.4 </entity> <entity type> monetaryItemType </entity type> <context> Accrued Taxes | 33.4 | 30.7 </context>
us-gaap:TaxesPayableCurrent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
30.7
monetaryItemType
table: <entity> 30.7 </entity> <entity type> monetaryItemType </entity type> <context> Accrued Taxes | 33.4 | 30.7 </context>
us-gaap:TaxesPayableCurrent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
33.1
monetaryItemType
table: <entity> 33.1 </entity> <entity type> monetaryItemType </entity type> <context> Accrued Interest | 33.1 | 30.7 </context>
us-gaap:InterestPayableCurrent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
30.7
monetaryItemType
table: <entity> 30.7 </entity> <entity type> monetaryItemType </entity type> <context> Accrued Taxes | 33.4 | 30.7 </context>
us-gaap:InterestPayableCurrent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
10.4
monetaryItemType
table: <entity> 10.4 </entity> <entity type> monetaryItemType </entity type> <context> Obligations Under Operating Leases | 10.4 | 10.1 </context>
us-gaap:OperatingLeaseLiabilityCurrent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
10.1
monetaryItemType
table: <entity> 10.1 </entity> <entity type> monetaryItemType </entity type> <context> Obligations Under Operating Leases | 10.4 | 10.1 </context>
us-gaap:OperatingLeaseLiabilityCurrent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
78.6
monetaryItemType
table: <entity> 78.6 </entity> <entity type> monetaryItemType </entity type> <context> Other Current Liabilities | 78.6 | 106.2 </context>
us-gaap:OtherLiabilitiesCurrent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
106.2
monetaryItemType
table: <entity> 106.2 </entity> <entity type> monetaryItemType </entity type> <context> Other Current Liabilities | 78.6 | 106.2 </context>
us-gaap:OtherLiabilitiesCurrent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
619.4
monetaryItemType
table: <entity> 619.4 </entity> <entity type> monetaryItemType </entity type> <context> TOTAL CURRENT LIABILITIES | 619.4 | 559.0 </context>
us-gaap:LiabilitiesCurrent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
559.0
monetaryItemType
table: <entity> 559.0 </entity> <entity type> monetaryItemType </entity type> <context> TOTAL CURRENT LIABILITIES | 619.4 | 559.0 </context>
us-gaap:LiabilitiesCurrent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
2730.0
monetaryItemType
table: <entity> 2730.0 </entity> <entity type> monetaryItemType </entity type> <context> Long-term Debt – Nonaffiliated | 2,730.0 | 2,384.0 </context>
us-gaap:LongTermDebtNoncurrent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
2384.0
monetaryItemType
table: <entity> 2384.0 </entity> <entity type> monetaryItemType </entity type> <context> Long-term Debt – Nonaffiliated | 2,730.0 | 2,384.0 </context>
us-gaap:LongTermDebtNoncurrent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
930.6
monetaryItemType
table: <entity> 930.6 </entity> <entity type> monetaryItemType </entity type> <context> Deferred Income Taxes | 930.6 | 831.2 </context>
us-gaap:DeferredIncomeTaxLiabilitiesNet
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
831.2
monetaryItemType
table: <entity> 831.2 </entity> <entity type> monetaryItemType </entity type> <context> Deferred Income Taxes | 930.6 | 831.2 </context>
us-gaap:DeferredIncomeTaxLiabilitiesNet
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
689.7
monetaryItemType
table: <entity> 689.7 </entity> <entity type> monetaryItemType </entity type> <context> Regulatory Liabilities and Deferred Investment Tax Credits | 689.7 | 765.6 </context>
us-gaap:RegulatoryLiabilityNoncurrent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
765.6
monetaryItemType
table: <entity> 765.6 </entity> <entity type> monetaryItemType </entity type> <context> Regulatory Liabilities and Deferred Investment Tax Credits | 689.7 | 765.6 </context>
us-gaap:RegulatoryLiabilityNoncurrent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
118.8
monetaryItemType
table: <entity> 118.8 </entity> <entity type> monetaryItemType </entity type> <context> Asset Retirement Obligations | 118.8 | 83.9 </context>
us-gaap:AssetRetirementObligationsNoncurrent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
83.9
monetaryItemType
table: <entity> 83.9 </entity> <entity type> monetaryItemType </entity type> <context> Asset Retirement Obligations | 118.8 | 83.9 </context>
us-gaap:AssetRetirementObligationsNoncurrent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
101.9
monetaryItemType
table: <entity> 101.9 </entity> <entity type> monetaryItemType </entity type> <context> Obligations Under Operating Leases | 101.9 | 106.8 </context>
us-gaap:OperatingLeaseLiabilityNoncurrent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
106.8
monetaryItemType
table: <entity> 106.8 </entity> <entity type> monetaryItemType </entity type> <context> Obligations Under Operating Leases | 101.9 | 106.8 </context>
us-gaap:OperatingLeaseLiabilityNoncurrent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
34.3
monetaryItemType
table: <entity> 34.3 </entity> <entity type> monetaryItemType </entity type> <context> Deferred Credits and Other Noncurrent Liabilities | 34.3 | 33.8 </context>
us-gaap:OtherLiabilitiesNoncurrent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
33.8
monetaryItemType
table: <entity> 33.8 </entity> <entity type> monetaryItemType </entity type> <context> Deferred Credits and Other Noncurrent Liabilities | 34.3 | 33.8 </context>
us-gaap:OtherLiabilitiesNoncurrent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
4605.3
monetaryItemType
table: <entity> 4605.3 </entity> <entity type> monetaryItemType </entity type> <context> TOTAL NONCURRENT LIABILITIES | 4,605.3 | 4,205.3 </context>
us-gaap:LiabilitiesNoncurrent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
4205.3
monetaryItemType
table: <entity> 4205.3 </entity> <entity type> monetaryItemType </entity type> <context> TOTAL NONCURRENT LIABILITIES | 4,605.3 | 4,205.3 </context>
us-gaap:LiabilitiesNoncurrent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
5224.7
monetaryItemType
table: <entity> 5224.7 </entity> <entity type> monetaryItemType </entity type> <context> TOTAL LIABILITIES | 5,224.7 | 4,764.3 </context>
us-gaap:Liabilities
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
4764.3
monetaryItemType
table: <entity> 4764.3 </entity> <entity type> monetaryItemType </entity type> <context> TOTAL LIABILITIES | 5,224.7 | 4,764.3 </context>
us-gaap:Liabilities
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
15
perShareItemType
table: <entity> 15 </entity> <entity type> perShareItemType </entity type> <context> None </context>
us-gaap:CommonStockParOrStatedValuePerShare
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
11000000
sharesItemType
table: <entity> 11000000 </entity> <entity type> sharesItemType </entity type> <context> None </context>
us-gaap:CommonStockSharesAuthorized
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
10482000
sharesItemType
table: <entity> 10482000 </entity> <entity type> sharesItemType </entity type> <context> None </context>
us-gaap:CommonStockSharesIssued
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
9013000
sharesItemType
table: <entity> 9013000 </entity> <entity type> sharesItemType </entity type> <context> None </context>
us-gaap:CommonStockSharesOutstanding
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
157.2
monetaryItemType
table: <entity> 157.2 </entity> <entity type> monetaryItemType </entity type> <context> Outstanding – 9,013,000 Shares Outstanding – 9,013,000 Shares | 157.2 | 157.2 </context>
us-gaap:CommonStockValue
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
1041.2
monetaryItemType
table: <entity> 1041.2 </entity> <entity type> monetaryItemType </entity type> <context> Paid-in Capital | 1,041.2 | 1,039.3 </context>
us-gaap:AdditionalPaidInCapital
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
1039.3
monetaryItemType
table: <entity> 1039.3 </entity> <entity type> monetaryItemType </entity type> <context> Paid-in Capital | 1,041.2 | 1,039.3 </context>
us-gaap:AdditionalPaidInCapital
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
1483.6
monetaryItemType
table: <entity> 1483.6 </entity> <entity type> monetaryItemType </entity type> <context> Retained Earnings | 1,483.6 | 1,374.3 </context>
us-gaap:RetainedEarningsAccumulatedDeficit
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
1374.3
monetaryItemType
table: <entity> 1374.3 </entity> <entity type> monetaryItemType </entity type> <context> Retained Earnings | 1,483.6 | 1,374.3 </context>
us-gaap:RetainedEarningsAccumulatedDeficit
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
3.6
monetaryItemType
table: <entity> 3.6 </entity> <entity type> monetaryItemType </entity type> <context> Accumulated Other Comprehensive Income (Loss) | 3.6 | ( 0.2 ) </context>
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
0.2
monetaryItemType
table: <entity> 0.2 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
2685.6
monetaryItemType
table: <entity> 2685.6 </entity> <entity type> monetaryItemType </entity type> <context> TOTAL COMMON SHAREHOLDER’S EQUITY | 2,685.6 | 2,570.6 </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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
2570.6
monetaryItemType
table: <entity> 2570.6 </entity> <entity type> monetaryItemType </entity type> <context> TOTAL COMMON SHAREHOLDER’S EQUITY | 2,685.6 | 2,570.6 </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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
7910.3
monetaryItemType
table: <entity> 7910.3 </entity> <entity type> monetaryItemType </entity type> <context> TOTAL LIABILITIES AND COMMON SHAREHOLDER’S EQUITY | $ | 7,910.3 | $ | 7,334.9 </context>
us-gaap:LiabilitiesAndStockholdersEquity
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></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></td><td></td><td>(in millions)</td></tr><tr><td>CU...
table
7334.9
monetaryItemType
table: <entity> 7334.9 </entity> <entity type> monetaryItemType </entity type> <context> TOTAL LIABILITIES AND COMMON SHAREHOLDER’S EQUITY | $ | 7,910.3 | $ | 7,334.9 </context>
us-gaap:LiabilitiesAndStockholdersEquity
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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
249.3
monetaryItemType
table: <entity> 249.3 </entity> <entity type> monetaryItemType </entity type> <context> Net Income | $ | 249.3 | $ | 208.8 | $ | 167.6 </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
208.8
monetaryItemType
table: <entity> 208.8 </entity> <entity type> monetaryItemType </entity type> <context> Net Income | $ | 249.3 | $ | 208.8 | $ | 167.6 </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
167.6
monetaryItemType
table: <entity> 167.6 </entity> <entity type> monetaryItemType </entity type> <context> Net Income | $ | 249.3 | $ | 208.8 | $ | 167.6 </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
272.2
monetaryItemType
table: <entity> 272.2 </entity> <entity type> monetaryItemType </entity type> <context> Depreciation and Amortization | 272.2 | 255.5 | 230.1 </context>
us-gaap:UtilitiesOperatingExpenseDepreciationAndAmortization
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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
255.5
monetaryItemType
table: <entity> 255.5 </entity> <entity type> monetaryItemType </entity type> <context> Depreciation and Amortization | 272.2 | 255.5 | 230.1 </context>
us-gaap:UtilitiesOperatingExpenseDepreciationAndAmortization
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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
230.1
monetaryItemType
table: <entity> 230.1 </entity> <entity type> monetaryItemType </entity type> <context> Depreciation and Amortization | 272.2 | 255.5 | 230.1 </context>
us-gaap:UtilitiesOperatingExpenseDepreciationAndAmortization
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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
20.6
monetaryItemType
table: <entity> 20.6 </entity> <entity type> monetaryItemType </entity type> <context> Deferred Income Taxes | 20.6 | 7.9 | ( 59.4 ) </context>
us-gaap:DeferredIncomeTaxExpenseBenefit
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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
7.9
monetaryItemType
table: <entity> 7.9 </entity> <entity type> monetaryItemType </entity type> <context> Deferred Income Taxes | 20.6 | 7.9 | ( 59.4 ) </context>
us-gaap:DeferredIncomeTaxExpenseBenefit
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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
59.4
monetaryItemType
table: <entity> 59.4 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:DeferredIncomeTaxExpenseBenefit
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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
7.4
monetaryItemType
table: <entity> 7.4 </entity> <entity type> monetaryItemType </entity type> <context> None </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
8.4
monetaryItemType
table: <entity> 8.4 </entity> <entity type> monetaryItemType </entity type> <context> None </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
1.5
monetaryItemType
table: <entity> 1.5 </entity> <entity type> monetaryItemType </entity type> <context> Noncash Acquisitions Under Finance Leases | 1.5 | 2.1 | 2.8 </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
27.1
monetaryItemType
table: <entity> 27.1 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:UnrealizedGainLossOnDerivatives