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UNCONSOLIDATED AFFILIATES - Narrative (Details) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2026	Mar. 31, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Schedule of Equity Method Investments [Line Items]
Unconsolidated entities expenses in transactions	$ 76		$ 67	$ 221	$ 218
Capital expenditures (less allowance for equity funds used during construction)				548	499
Impairment of equity investments (Note I)	$ 0		$ 0	60	$ 0
Texas City Logistics
Schedule of Equity Method Investments [Line Items]
Capital expenditures (less allowance for equity funds used during construction)				238
Eiger
Schedule of Equity Method Investments [Line Items]
Capital expenditures (less allowance for equity funds used during construction)				190
Matterhorn
Schedule of Equity Method Investments [Line Items]
Capital expenditures (less allowance for equity funds used during construction)				$ 136
Powder Springs Logistics, LLC
Schedule of Equity Method Investments [Line Items]
Ownership percentage		50.00%
Impairment of equity investments (Note I)		$ 60
Gain (loss) on disposition of property plant equipment		$ 52