DERIVATIVES - Fair Value (Details) - Marketing Derivatives - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Gross and net fair values of outstanding derivatives (in millions)
Collateral received netted against derivative assets	$ 29	$ 12
Collateral paid netted against derivative liabilities	23	9
Other current assets
Gross and net fair values of outstanding derivatives (in millions)
Netting, asset	(328)	(512)
Total fair value, asset	68	35
Other long-term assets
Gross and net fair values of outstanding derivatives (in millions)
Netting, asset	0	(1)
Total fair value, asset	0	0
Accrued liabilities
Gross and net fair values of outstanding derivatives (in millions)
Netting, liability	328	512
Total fair value, liability	(32)	(29)
Deferred credits and other liabilities - other
Gross and net fair values of outstanding derivatives (in millions)
Netting, liability	0	1
Total fair value, liability	0	(1)
Level 1 | Other current assets
Gross and net fair values of outstanding derivatives (in millions)
Commodity contract derivative asset, gross	345	455
Level 1 | Other long-term assets
Gross and net fair values of outstanding derivatives (in millions)
Commodity contract derivative asset, gross	0	0
Level 1 | Accrued liabilities
Gross and net fair values of outstanding derivatives (in millions)
Commodity contract derivative liability, gross	(336)	(451)
Level 1 | Deferred credits and other liabilities - other
Gross and net fair values of outstanding derivatives (in millions)
Commodity contract derivative liability, gross	0	0
Level 2 | Other current assets
Gross and net fair values of outstanding derivatives (in millions)
Commodity contract derivative asset, gross	51	92
Level 2 | Other long-term assets
Gross and net fair values of outstanding derivatives (in millions)
Commodity contract derivative asset, gross	0	1
Level 2 | Accrued liabilities
Gross and net fair values of outstanding derivatives (in millions)
Commodity contract derivative liability, gross	(24)	(90)
Level 2 | Deferred credits and other liabilities - other
Gross and net fair values of outstanding derivatives (in millions)
Commodity contract derivative liability, gross	0	(2)
Level 3 | Other current assets
Gross and net fair values of outstanding derivatives (in millions)
Commodity contract derivative asset, gross	0	0
Level 3 | Other long-term assets
Gross and net fair values of outstanding derivatives (in millions)
Commodity contract derivative asset, gross	0	0
Level 3 | Accrued liabilities
Gross and net fair values of outstanding derivatives (in millions)
Commodity contract derivative liability, gross	0	0
Level 3 | Deferred credits and other liabilities - other
Gross and net fair values of outstanding derivatives (in millions)
Commodity contract derivative liability, gross	$ 0	$ 0