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UNCONSOLIDATED AFFILIATES - Narrative (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2026	Mar. 31, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Schedule of Equity Method Investments [Line Items]
Unconsolidated entities expenses in transactions	$ 70		$ 96	$ 145	$ 176
Capital expenditures (less allowance for equity funds used during construction)				353	155
Impairment of equity investments (Note H)	$ 0		$ 0	60	$ 0
Texas City Logistics
Schedule of Equity Method Investments [Line Items]
Capital expenditures (less allowance for equity funds used during construction)				149
Eiger
Schedule of Equity Method Investments [Line Items]
Capital expenditures (less allowance for equity funds used during construction)				100
Matterhorn
Schedule of Equity Method Investments [Line Items]
Capital expenditures (less allowance for equity funds used during construction)				$ 72
Powder Springs Logistics, LLC
Schedule of Equity Method Investments [Line Items]
Ownership percentage		50.00%
Impairment of equity investments (Note H)		$ 60
Gain (loss) on disposition of property plant equipment		$ 52