RELATED PARTY TRANSACTIONS (Transactions with SBR) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Related Party Transaction [Line Items]
Revenues	$ 33,077.9	$ 38,288.5	$ 46,780.6
Accounts receivable	1,141.0	1,336.1
Accrued expenses	2,465.3	2,968.0
St. Bernard Renewables LLC | Equity Method Investment, Nonconsolidated Investee or Group of Investees
Related Party Transaction [Line Items]
Accounts receivable	18.7	22.1
Accrued expenses	47.8	28.3
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 | Equity Method Investment, Nonconsolidated Investee or Group of Investees | General and Administrative Expense | Operating Agreement
Related Party Transaction [Line Items]
Total expenses under affiliate agreements	163.7	62.8
St. Bernard Renewables LLC | Equity Method Investment, Nonconsolidated Investee or Group of Investees | General and Administrative Expense | Omnibus Agreement
Related Party Transaction [Line Items]
Total expenses under affiliate agreements	4.1
St. Bernard Renewables LLC | Equity Method Investment, Nonconsolidated Investee or Group of Investees | General and Administrative Expense | Common Asset Use and Servitude Agreement
Related Party Transaction [Line Items]
Total expenses under affiliate agreements	6.6
St. Bernard Renewables LLC | Equity Method Investment, Nonconsolidated Investee or Group of Investees | Cost of Sales [Member] | Lease Agreements
Related Party Transaction [Line Items]
Total expenses under affiliate agreements	$ (4.1)	$ 0.0