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FAIR VALUE MEASUREMENTS - Recurring Fair Value Measurements (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Derivative liabilities
Cash held - offsetting derivative net asset positions under master- netting arrangements	$ 0	$ 0
Cash posted - total	129	41
Cash posted - offsetting derivative net liability positions under master-netting arrangements	63
Long-term debt	21,700	21,700
Current Assets
Derivative liabilities
Cash posted - offsetting derivative net liability positions under master-netting arrangements	66
Fair Value, Recurring
Derivative assets
Derivative assets netting	(114)	(125)
Derivative assets	1	52
Derivative liabilities
Derivative liabilities netting	177	84
Derivative liabilities	0	0
Fair Value, Recurring | Commodity contracts
Derivative assets
Derivative assets netting	(114)	(125)
Derivative assets	1	52
Derivative liabilities
Derivative liabilities netting	177	84
Derivative liabilities	0	0
Fair Value, Recurring | Gross Fair Value Measurement
Derivative assets
Derivative asset, fair value, gross	115	177
Derivative liabilities
Derivative liability, fair value, gross	(177)	(84)
Fair Value, Recurring | Gross Fair Value Measurement | Commodity contracts
Derivative assets
Derivative asset, fair value, gross	115	177
Derivative liabilities
Derivative liability, fair value, gross	(177)	(84)
Fair Value, Recurring | Level 1
Derivative assets
Derivative asset, fair value, gross	58	109
Derivative liabilities
Derivative liability, fair value, gross	(94)	(40)
Fair Value, Recurring | Level 1 | Commodity contracts
Derivative assets
Derivative asset, fair value, gross	58	109
Derivative liabilities
Derivative liability, fair value, gross	(94)	(40)
Fair Value, Recurring | Level 2
Derivative assets
Derivative asset, fair value, gross	57	68
Derivative liabilities
Derivative liability, fair value, gross	(83)	(44)
Fair Value, Recurring | Level 2 | Commodity contracts
Derivative assets
Derivative asset, fair value, gross	57	68
Derivative liabilities
Derivative liability, fair value, gross	(83)	(44)
Fair Value, Recurring | Level 3
Derivative assets
Derivative asset, fair value, gross	0	0
Derivative liabilities
Derivative liability, fair value, gross	0	0
Fair Value, Recurring | Level 3 | Commodity contracts
Derivative assets
Derivative asset, fair value, gross	0	0
Derivative liabilities
Derivative liability, fair value, gross	$ 0	$ 0

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