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RELATED PARTY TRANSACTIONS (Summary of Related Party Transactions) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Related Party Transaction [Line Items]
Revenues	$ 33,115.3	$ 38,324.8	$ 46,830.3
St. Bernard Renewables LLC \| Equity Method Investment, Nonconsolidated Investee or Group of Investees
Related Party Transaction [Line Items]
Revenues	39.7	9.1
Related Party Transaction, Purchases from Related Party	(323.5)	(244.4)
St. Bernard Renewables LLC \| Operating Agreement \| General and Administrative Expense \| Equity Method Investment, Nonconsolidated Investee or Group of Investees
Related Party Transaction [Line Items]
Related Party Transaction, Amounts of Transaction	163.7	62.8
St. Bernard Renewables LLC \| Omnibus Agreement \| General and Administrative Expense \| Equity Method Investment, Nonconsolidated Investee or Group of Investees
Related Party Transaction [Line Items]
Related Party Transaction, Amounts of Transaction	4.1
St. Bernard Renewables LLC \| Common Asset Use and Servitude Agreement \| General and Administrative Expense \| Equity Method Investment, Nonconsolidated Investee or Group of Investees
Related Party Transaction [Line Items]
Related Party Transaction, Amounts of Transaction	6.6
St. Bernard Renewables LLC \| Lease Agreements \| Cost of Sales \| Equity Method Investment, Nonconsolidated Investee or Group of Investees
Related Party Transaction [Line Items]
Related Party Transaction, Amounts of Transaction	$ (4.1)	$ 0.0