Guarantor Obligations, Maximum Exposure, Percentage

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Amount of transactions with related party during the financial reporting period.

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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RELATED PARTY TRANSACTIONS (Summary of Transactions with SBR) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025
Related Party Transaction [Line Items]
Revenues	$ 7,899.8	$ 7,057.1
Accounts receivable	1,852.4		$ 1,120.1
Accrued expenses	3,261.7		2,614.2
St. Bernard Renewables LLC
Related Party Transaction [Line Items]
Accounts receivable	81.7		44.1
Accrued expenses	48.1		$ 39.4
St. Bernard Renewables LLC \| Equity Method Investment, Nonconsolidated Investee or Group of Investees
Related Party Transaction [Line Items]
Revenues	21.6	13.4
Purchases	(157.5)	(60.3)
Limited financial performance guarantee of a term loan	$ 100.0
Guarantor obligations, maximum exposure, percentage	50.00%
Equity method investment, ownership percentage	50.00%
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	$ 70.1	40.0
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	1.0	1.0
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	2.0	2.2
St. Bernard Renewables LLC \| Equity Method Investment, Nonconsolidated Investee or Group of Investees \| Cost of Sales \| Lease Agreements
Related Party Transaction [Line Items]
Total expenses under affiliate agreements	$ 0.0	$ (5.3)