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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></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>Operating Activities</td><td></td><td></td><td></td></tr...
table
271.2
monetaryItemType
table: <entity> 271.2 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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>Operating Activities</td><td></td><td></td><td></td></tr...
table
220.5
monetaryItemType
table: <entity> 220.5 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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>Operating Activities</td><td></td><td></td><td></td></tr...
table
20.4
monetaryItemType
table: <entity> 20.4 </entity> <entity type> monetaryItemType </entity type> <context> Other Investing Activities | 20.4 | ( 4.0 ) | ( 2.4 ) </context>
us-gaap:PaymentsForProceedsFromOtherInvestingActivities
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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>Operating Activities</td><td></td><td></td><td></td></tr...
table
4.0
monetaryItemType
table: <entity> 4.0 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:PaymentsForProceedsFromOtherInvestingActivities
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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>Operating Activities</td><td></td><td></td><td></td></tr...
table
2.4
monetaryItemType
table: <entity> 2.4 </entity> <entity type> monetaryItemType </entity type> <context> Income from Equity Investments – Net of Dividends | ( 1.8 ) | 1.0 | 2.4 </context>
us-gaap:PaymentsForProceedsFromOtherInvestingActivities
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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>Operating Activities</td><td></td><td></td><td></td></tr...
table
340.7
monetaryItemType
table: <entity> 340.7 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:NetCashProvidedByUsedInInvestingActivities
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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>Operating Activities</td><td></td><td></td><td></td></tr...
table
283.6
monetaryItemType
table: <entity> 283.6 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:NetCashProvidedByUsedInInvestingActivities
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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>Operating Activities</td><td></td><td></td><td></td></tr...
table
384.0
monetaryItemType
table: <entity> 384.0 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:NetCashProvidedByUsedInInvestingActivities
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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>Operating Activities</td><td></td><td></td><td></td></tr...
table
12.9
monetaryItemType
table: <entity> 12.9 </entity> <entity type> monetaryItemType </entity type> <context> Proceeds from Issuance of Common Stock | 12.9 | 14.9 | 248.0 </context>
us-gaap:ProceedsFromIssuanceOfCommonStock
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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>Operating Activities</td><td></td><td></td><td></td></tr...
table
14.9
monetaryItemType
table: <entity> 14.9 </entity> <entity type> monetaryItemType </entity type> <context> Proceeds from Issuance of Common Stock | 12.9 | 14.9 | 248.0 </context>
us-gaap:ProceedsFromIssuanceOfCommonStock
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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>Operating Activities</td><td></td><td></td><td></td></tr...
table
248.0
monetaryItemType
table: <entity> 248.0 </entity> <entity type> monetaryItemType </entity type> <context> Proceeds from Issuance of Common Stock | 12.9 | 14.9 | 248.0 </context>
us-gaap:ProceedsFromIssuanceOfCommonStock
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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>Operating Activities</td><td></td><td></td><td></td></tr...
table
β€”
monetaryItemType
table: <entity> β€” </entity> <entity type> monetaryItemType </entity type> <context> (Gain) / Loss on Investments and Property, Plant and Equipment | β€” | β€” | 1.2 </context>
us-gaap:PaymentsOfStockIssuanceCosts
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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>Operating Activities</td><td></td><td></td><td></td></tr...
table
8.1
monetaryItemType
table: <entity> 8.1 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:PaymentsOfStockIssuanceCosts
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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>Operating Activities</td><td></td><td></td><td></td></tr...
table
658.0
monetaryItemType
table: <entity> 658.0 </entity> <entity type> monetaryItemType </entity type> <context> Proceeds from Issuance of Short-Term and Long-Term Debt | 658.0 | 437.0 | 785.4 </context>
us-gaap:ProceedsFromIssuanceOfLongTermDebt
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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>Operating Activities</td><td></td><td></td><td></td></tr...
table
437.0
monetaryItemType
table: <entity> 437.0 </entity> <entity type> monetaryItemType </entity type> <context> Proceeds from Issuance of Short-Term and Long-Term Debt | 658.0 | 437.0 | 785.4 </context>
us-gaap:ProceedsFromIssuanceOfLongTermDebt
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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>Operating Activities</td><td></td><td></td><td></td></tr...
table
785.4
monetaryItemType
table: <entity> 785.4 </entity> <entity type> monetaryItemType </entity type> <context> Proceeds from Issuance of Short-Term and Long-Term Debt | 658.0 | 437.0 | 785.4 </context>
us-gaap:ProceedsFromIssuanceOfLongTermDebt
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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>Operating Activities</td><td></td><td></td><td></td></tr...
table
649.4
monetaryItemType
table: <entity> 649.4 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:RepaymentsOfLongTermDebt
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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>Operating Activities</td><td></td><td></td><td></td></tr...
table
566.7
monetaryItemType
table: <entity> 566.7 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:RepaymentsOfLongTermDebt
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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>Operating Activities</td><td></td><td></td><td></td></tr...
table
877.0
monetaryItemType
table: <entity> 877.0 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:RepaymentsOfLongTermDebt
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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>Operating Activities</td><td></td><td></td><td></td></tr...
table
4.1
monetaryItemType
table: <entity> 4.1 </entity> <entity type> monetaryItemType </entity type> <context> Proceeds from Non-Controlling Interest in Subsidiaries – Net of Issuance Costs | 4.1 | 17.8 | 155.7 </context>
us-gaap:ProceedsFromMinorityShareholders
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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>Operating Activities</td><td></td><td></td><td></td></tr...
table
17.8
monetaryItemType
table: <entity> 17.8 </entity> <entity type> monetaryItemType </entity type> <context> Proceeds from Non-Controlling Interest in Subsidiaries – Net of Issuance Costs | 4.1 | 17.8 | 155.7 </context>
us-gaap:ProceedsFromMinorityShareholders
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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>Operating Activities</td><td></td><td></td><td></td></tr...
table
155.7
monetaryItemType
table: <entity> 155.7 </entity> <entity type> monetaryItemType </entity type> <context> Proceeds from Non-Controlling Interest in Subsidiaries – Net of Issuance Costs | 4.1 | 17.8 | 155.7 </context>
us-gaap:ProceedsFromMinorityShareholders
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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>Operating Activities</td><td></td><td></td><td></td></tr...
table
1.5
monetaryItemType
table: <entity> 1.5 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:PaymentsToMinorityShareholders
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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>Operating Activities</td><td></td><td></td><td></td></tr...
table
8.5
monetaryItemType
table: <entity> 8.5 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:PaymentsToMinorityShareholders
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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>Operating Activities</td><td></td><td></td><td></td></tr...
table
1.7
monetaryItemType
table: <entity> 1.7 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:PaymentsToMinorityShareholders
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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>Operating Activities</td><td></td><td></td><td></td></tr...
table
162.8
monetaryItemType
table: <entity> 162.8 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:PaymentsOfDividendsCommonStock
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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>Operating Activities</td><td></td><td></td><td></td></tr...
table
155.5
monetaryItemType
table: <entity> 155.5 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:PaymentsOfDividendsCommonStock
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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>Operating Activities</td><td></td><td></td><td></td></tr...
table
145.9
monetaryItemType
table: <entity> 145.9 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:PaymentsOfDividendsCommonStock
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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>Operating Activities</td><td></td><td></td><td></td></tr...
table
1.9
monetaryItemType
table: <entity> 1.9 </entity> <entity type> monetaryItemType </entity type> <context> Bad Debt Expense | 1.4 | 1.3 | 1.9 </context>
us-gaap:ProceedsFromPaymentsForOtherFinancingActivities
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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>Operating Activities</td><td></td><td></td><td></td></tr...
table
1.5
monetaryItemType
table: <entity> 1.5 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:ProceedsFromPaymentsForOtherFinancingActivities
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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>Operating Activities</td><td></td><td></td><td></td></tr...
table
1.2
monetaryItemType
table: <entity> 1.2 </entity> <entity type> monetaryItemType </entity type> <context> (Gain) / Loss on Investments and Property, Plant and Equipment | β€” | β€” | 1.2 </context>
us-gaap:ProceedsFromPaymentsForOtherFinancingActivities
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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>Operating Activities</td><td></td><td></td><td></td></tr...
table
140.6
monetaryItemType
table: <entity> 140.6 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:NetCashProvidedByUsedInFinancingActivities
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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>Operating Activities</td><td></td><td></td><td></td></tr...
table
262.5
monetaryItemType
table: <entity> 262.5 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:NetCashProvidedByUsedInFinancingActivities
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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>Operating Activities</td><td></td><td></td><td></td></tr...
table
155.2
monetaryItemType
table: <entity> 155.2 </entity> <entity type> monetaryItemType </entity type> <context> Cash provided (used in) by Financing Activities | ( 140.6 ) | ( 262.5 ) | 155.2 </context>
us-gaap:NetCashProvidedByUsedInFinancingActivities
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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>Operating Activities</td><td></td><td></td><td></td></tr...
table
24.2
monetaryItemType
table: <entity> 24.2 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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>Operating Activities</td><td></td><td></td><td></td></tr...
table
39.2
monetaryItemType
table: <entity> 39.2 </entity> <entity type> monetaryItemType </entity type> <context> Change in Cash, Cash Equivalents and Restricted Cash | ( 24.2 ) | 39.2 | ( 7.5 ) </context>
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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>Operating Activities</td><td></td><td></td><td></td></tr...
table
7.5
monetaryItemType
table: <entity> 7.5 </entity> <entity type> monetaryItemType </entity type> <context> Inventories | 7.5 | 277.1 | ( 256.1 ) </context>
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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>Operating Activities</td><td></td><td></td><td></td></tr...
table
79.4
monetaryItemType
table: <entity> 79.4 </entity> <entity type> monetaryItemType </entity type> <context> Cash, Cash Equivalents and Restricted Cash at Beginning of Period | 79.4 | 40.2 | 47.7 </context>
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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>Operating Activities</td><td></td><td></td><td></td></tr...
table
40.2
monetaryItemType
table: <entity> 40.2 </entity> <entity type> monetaryItemType </entity type> <context> Cash, Cash Equivalents and Restricted Cash at Beginning of Period | 79.4 | 40.2 | 47.7 </context>
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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>Operating Activities</td><td></td><td></td><td></td></tr...
table
47.7
monetaryItemType
table: <entity> 47.7 </entity> <entity type> monetaryItemType </entity type> <context> Cash, Cash Equivalents and Restricted Cash at Beginning of Period | 79.4 | 40.2 | 47.7 </context>
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></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>Operating Activities</td><td></td><td></td><td></td></tr...
table
55.2
monetaryItemType
table: <entity> 55.2 </entity> <entity type> monetaryItemType </entity type> <context> Cash, Cash Equivalents and Restricted Cash at End of Period | $ 55.2 | $ 79.4 | $ 40.2 </context>
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
1803.7
monetaryItemType
table: <entity> 1803.7 </entity> <entity type> monetaryItemType </entity type> <context> Balance, Beginning of Period | $ 1,803.7 | $ 1,781.5 | $ 1,536.7 </context>
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
1781.5
monetaryItemType
table: <entity> 1781.5 </entity> <entity type> monetaryItemType </entity type> <context> Balance, Beginning of Period | $ 1,803.7 | $ 1,781.5 | $ 1,536.7 </context>
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
1536.7
monetaryItemType
table: <entity> 1536.7 </entity> <entity type> monetaryItemType </entity type> <context> Balance, Beginning of Period | $ 1,803.7 | $ 1,781.5 | $ 1,536.7 </context>
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
19.5
monetaryItemType
table: <entity> 19.5 </entity> <entity type> monetaryItemType </entity type> <context> Common Stock Issued | 19.5 | 22.2 | 244.8 </context>
us-gaap:StockIssuedDuringPeriodValueNewIssues
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
22.2
monetaryItemType
table: <entity> 22.2 </entity> <entity type> monetaryItemType </entity type> <context> Common Stock Issued | 19.5 | 22.2 | 244.8 </context>
us-gaap:StockIssuedDuringPeriodValueNewIssues
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
244.8
monetaryItemType
table: <entity> 244.8 </entity> <entity type> monetaryItemType </entity type> <context> Common Stock Issued | 19.5 | 22.2 | 244.8 </context>
us-gaap:StockIssuedDuringPeriodValueNewIssues
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
1823.2
monetaryItemType
table: <entity> 1823.2 </entity> <entity type> monetaryItemType </entity type> <context> Balance, End of Period | 1,823.2 | 1,803.7 | 1,781.5 </context>
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
20.5
monetaryItemType
table: <entity> 20.5 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
24.4
monetaryItemType
table: <entity> 24.4 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
23.8
monetaryItemType
table: <entity> 23.8 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
0.1
monetaryItemType
table: <entity> 0.1 </entity> <entity type> monetaryItemType </entity type> <context> Unrealized Gain (Loss) on Debt Securities | 0.1 | 0.3 | ( 0.4 ) </context>
us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
0.3
monetaryItemType
table: <entity> 0.3 </entity> <entity type> monetaryItemType </entity type> <context> Unrealized Gain (Loss) on Debt Securities | 0.1 | 0.3 | ( 0.4 ) </context>
us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
0.4
monetaryItemType
table: <entity> 0.4 </entity> <entity type> monetaryItemType </entity type> <context> Total Redeemable Non-Controlling Interest | $ 0.4 | $ 0.5 | β€” </context>
us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
2.3
monetaryItemType
table: <entity> 2.3 </entity> <entity type> monetaryItemType </entity type> <context> Defined Benefit Pension and Other Postretirement Plans | 2.3 | 3.6 | ( 0.2 ) </context>
us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
3.6
monetaryItemType
table: <entity> 3.6 </entity> <entity type> monetaryItemType </entity type> <context> Defined Benefit Pension and Other Postretirement Plans | 2.3 | 3.6 | ( 0.2 ) </context>
us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
0.2
monetaryItemType
table: <entity> 0.2 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
18.1
monetaryItemType
table: <entity> 18.1 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
1026.4
monetaryItemType
table: <entity> 1026.4 </entity> <entity type> monetaryItemType </entity type> <context> Balance, Beginning of Period | 1,026.4 | 934.8 | 891.4 </context>
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
934.8
monetaryItemType
table: <entity> 934.8 </entity> <entity type> monetaryItemType </entity type> <context> Balance, Beginning of Period | 1,026.4 | 934.8 | 891.4 </context>
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
891.4
monetaryItemType
table: <entity> 891.4 </entity> <entity type> monetaryItemType </entity type> <context> Balance, Beginning of Period | 1,026.4 | 934.8 | 891.4 </context>
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
179.3
monetaryItemType
table: <entity> 179.3 </entity> <entity type> monetaryItemType </entity type> <context> Net Income Attributable to ALLETE | 179.3 | 247.1 | 189.3 </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></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
247.1
monetaryItemType
table: <entity> 247.1 </entity> <entity type> monetaryItemType </entity type> <context> Net Income Attributable to ALLETE | 179.3 | 247.1 | 189.3 </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></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
189.3
monetaryItemType
table: <entity> 189.3 </entity> <entity type> monetaryItemType </entity type> <context> Net Income Attributable to ALLETE | 179.3 | 247.1 | 189.3 </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></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
162.8
monetaryItemType
table: <entity> 162.8 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:DividendsCommonStockCash
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
155.5
monetaryItemType
table: <entity> 155.5 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:DividendsCommonStockCash
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
145.9
monetaryItemType
table: <entity> 145.9 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:DividendsCommonStockCash
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
1042.9
monetaryItemType
table: <entity> 1042.9 </entity> <entity type> monetaryItemType </entity type> <context> Balance, End of Period | 1,042.9 | 1,026.4 | 934.8 </context>
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
597.0
monetaryItemType
table: <entity> 597.0 </entity> <entity type> monetaryItemType </entity type> <context> Balance, Beginning of Period | 597.0 | 656.4 | 533.2 </context>
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
656.4
monetaryItemType
table: <entity> 656.4 </entity> <entity type> monetaryItemType </entity type> <context> Balance, Beginning of Period | 597.0 | 656.4 | 533.2 </context>
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
533.2
monetaryItemType
table: <entity> 533.2 </entity> <entity type> monetaryItemType </entity type> <context> Balance, Beginning of Period | 597.0 | 656.4 | 533.2 </context>
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
1.3
monetaryItemType
table: <entity> 1.3 </entity> <entity type> monetaryItemType </entity type> <context> Proceeds from Non-Controlling Interest in Subsidiaries – Net of Issuance Costs | 1.3 | 9.9 | 182.9 </context>
us-gaap:NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
9.9
monetaryItemType
table: <entity> 9.9 </entity> <entity type> monetaryItemType </entity type> <context> Proceeds from Non-Controlling Interest in Subsidiaries – Net of Issuance Costs | 1.3 | 9.9 | 182.9 </context>
us-gaap:NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
182.9
monetaryItemType
table: <entity> 182.9 </entity> <entity type> monetaryItemType </entity type> <context> Proceeds from Non-Controlling Interest in Subsidiaries – Net of Issuance Costs | 1.3 | 9.9 | 182.9 </context>
us-gaap:NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
55.0
monetaryItemType
table: <entity> 55.0 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:NetIncomeLossAttributableToNoncontrollingInterest
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
60.8
monetaryItemType
table: <entity> 60.8 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:NetIncomeLossAttributableToNoncontrollingInterest
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
58.0
monetaryItemType
table: <entity> 58.0 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:NetIncomeLossAttributableToNoncontrollingInterest
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
1.2
monetaryItemType
table: <entity> 1.2 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
8.5
monetaryItemType
table: <entity> 8.5 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
1.7
monetaryItemType
table: <entity> 1.7 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
542.1
monetaryItemType
table: <entity> 542.1 </entity> <entity type> monetaryItemType </entity type> <context> Balance, End of Period | 542.1 | 597.0 | 656.4 </context>
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
3390.1
monetaryItemType
table: <entity> 3390.1 </entity> <entity type> monetaryItemType </entity type> <context> Total Equity | $ 3,390.1 | $ 3,406.6 | $ 3,348.3 </context>
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
3406.6
monetaryItemType
table: <entity> 3406.6 </entity> <entity type> monetaryItemType </entity type> <context> Total Equity | $ 3,390.1 | $ 3,406.6 | $ 3,348.3 </context>
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
3348.3
monetaryItemType
table: <entity> 3348.3 </entity> <entity type> monetaryItemType </entity type> <context> Total Equity | $ 3,390.1 | $ 3,406.6 | $ 3,348.3 </context>
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
0.5
monetaryItemType
table: <entity> 0.5 </entity> <entity type> monetaryItemType </entity type> <context> Balance, Beginning of Period | $ 0.5 | β€” | β€” </context>
us-gaap:TemporaryEquityCarryingAmountAttributableToParent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
β€”
monetaryItemType
table: <entity> β€” </entity> <entity type> monetaryItemType </entity type> <context> Balance, Beginning of Period | $ 0.5 | β€” | β€” </context>
us-gaap:TemporaryEquityCarryingAmountAttributableToParent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
2.8
monetaryItemType
table: <entity> 2.8 </entity> <entity type> monetaryItemType </entity type> <context> Proceeds from Non-Controlling Interest in Subsidiaries | 2.8 | $ 7.9 | β€” </context>
us-gaap:TemporaryEquityInterestInSubsidiaryEarnings
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
7.9
monetaryItemType
table: <entity> 7.9 </entity> <entity type> monetaryItemType </entity type> <context> Proceeds from Non-Controlling Interest in Subsidiaries | 2.8 | $ 7.9 | β€” </context>
us-gaap:TemporaryEquityInterestInSubsidiaryEarnings
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
β€”
monetaryItemType
table: <entity> β€” </entity> <entity type> monetaryItemType </entity type> <context> Balance, Beginning of Period | $ 0.5 | β€” | β€” </context>
us-gaap:TemporaryEquityInterestInSubsidiaryEarnings
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
2.6
monetaryItemType
table: <entity> 2.6 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:TemporaryEquityNetIncome
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
7.4
monetaryItemType
table: <entity> 7.4 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:TemporaryEquityNetIncome
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
β€”
monetaryItemType
table: <entity> β€” </entity> <entity type> monetaryItemType </entity type> <context> Balance, Beginning of Period | $ 0.5 | β€” | β€” </context>
us-gaap:TemporaryEquityNetIncome
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
0.4
monetaryItemType
table: <entity> 0.4 </entity> <entity type> monetaryItemType </entity type> <context> Total Redeemable Non-Controlling Interest | $ 0.4 | $ 0.5 | β€” </context>
us-gaap:TemporaryEquityCarryingAmountAttributableToParent
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
2.82
perShareItemType
table: <entity> 2.82 </entity> <entity type> perShareItemType </entity type> <context> Dividends Per Share of Common Stock | $ 2.82 | $ 2.71 | $ 2.60 </context>
us-gaap:CommonStockDividendsPerShareDeclared
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
2.71
perShareItemType
table: <entity> 2.71 </entity> <entity type> perShareItemType </entity type> <context> Dividends Per Share of Common Stock | $ 2.82 | $ 2.71 | $ 2.60 </context>
us-gaap:CommonStockDividendsPerShareDeclared
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td>2024</td><td>2023</td><td>2022</td></tr><tr><td>Millions Except Per Share Amounts</td><td></td><td></td><td></td></tr><tr><td>Equity</td><td></td><td></td><td></td></tr><tr><td>Co...
table
2.60
perShareItemType
table: <entity> 2.60 </entity> <entity type> perShareItemType </entity type> <context> Dividends Per Share of Common Stock | $ 2.82 | $ 2.71 | $ 2.60 </context>
us-gaap:CommonStockDividendsPerShareDeclared
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Cash, Cash Equivalents and Restricted Cash</td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>As of December 31</td><td>202...
table
32.8
monetaryItemType
table: <entity> 32.8 </entity> <entity type> monetaryItemType </entity type> <context> Cash and Cash Equivalents | $ 32.8 | $ 71.9 | $ 36.4 </context>
us-gaap:CashAndCashEquivalentsAtCarryingValue
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Cash, Cash Equivalents and Restricted Cash</td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>As of December 31</td><td>202...
table
71.9
monetaryItemType
table: <entity> 71.9 </entity> <entity type> monetaryItemType </entity type> <context> Cash and Cash Equivalents | $ 32.8 | $ 71.9 | $ 36.4 </context>
us-gaap:CashAndCashEquivalentsAtCarryingValue
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Cash, Cash Equivalents and Restricted Cash</td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>As of December 31</td><td>202...
table
36.4
monetaryItemType
table: <entity> 36.4 </entity> <entity type> monetaryItemType </entity type> <context> Cash and Cash Equivalents | $ 32.8 | $ 71.9 | $ 36.4 </context>
us-gaap:CashAndCashEquivalentsAtCarryingValue
<table><tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Cash, Cash Equivalents and Restricted Cash</td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>As of December 31</td><td>202...
table
19.9
monetaryItemType
table: <entity> 19.9 </entity> <entity type> monetaryItemType </entity type> <context> Restricted Cash included in Prepayments and Other | 19.9 | 5.1 | 1.5 </context>
us-gaap:RestrictedCashCurrent