DERIVATIVES - FAIR VALUE (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Gross and net fair values of outstanding derivatives (in millions)
Collateral paid netted against derivative liabilities		$ 323
Collateral deposited with clearinghouses and brokers		110
Marketing Derivatives
Gross and net fair values of outstanding derivatives (in millions)
Collateral deposited with clearinghouses and brokers	$ 15
Other current assets | Marketing Derivatives
Gross and net fair values of outstanding derivatives (in millions)
Netting, asset	(980)	(1,645)
Total fair value, asset	67	44
Long-term receivables and other assets, net | Marketing Derivatives
Gross and net fair values of outstanding derivatives (in millions)
Netting, asset	(1)	(4)
Total fair value, asset	2	1
Accrued liabilities | Marketing Derivatives
Gross and net fair values of outstanding derivatives (in millions)
Netting, liability	980	1,645
Total fair value, liability	(54)	(159)
Accrued liabilities | Interest Rate Swap
Gross and net fair values of outstanding derivatives (in millions)
Netting, liability		0
Total fair value, liability		(315)
Deferred credits and other liabilities - other | Marketing Derivatives
Gross and net fair values of outstanding derivatives (in millions)
Netting, liability	2	4
Total fair value, liability	0	0
Deferred credits and other liabilities - other | Interest Rate Swap
Gross and net fair values of outstanding derivatives (in millions)
Netting, liability		0
Total fair value, liability		(436)
Level 1 | Other current assets | Marketing Derivatives
Gross and net fair values of outstanding derivatives (in millions)
Commodity contract derivative asset, gross	920	1,516
Level 1 | Long-term receivables and other assets, net | Marketing Derivatives
Gross and net fair values of outstanding derivatives (in millions)
Commodity contract derivative asset, gross	1	4
Level 1 | Accrued liabilities | Marketing Derivatives
Gross and net fair values of outstanding derivatives (in millions)
Commodity contract derivative liability, gross	(938)	(1,608)
Level 1 | Accrued liabilities | Interest Rate Swap
Gross and net fair values of outstanding derivatives (in millions)
Commodity contract derivative liability, gross		0
Level 1 | Deferred credits and other liabilities - other | Marketing Derivatives
Gross and net fair values of outstanding derivatives (in millions)
Commodity contract derivative liability, gross	(1)	(4)
Level 1 | Deferred credits and other liabilities - other | Interest Rate Swap
Gross and net fair values of outstanding derivatives (in millions)
Commodity contract derivative liability, gross		0
Level 2 | Other current assets | Marketing Derivatives
Gross and net fair values of outstanding derivatives (in millions)
Commodity contract derivative asset, gross	127	173
Level 2 | Long-term receivables and other assets, net | Marketing Derivatives
Gross and net fair values of outstanding derivatives (in millions)
Commodity contract derivative asset, gross	2	1
Level 2 | Accrued liabilities | Marketing Derivatives
Gross and net fair values of outstanding derivatives (in millions)
Commodity contract derivative liability, gross	(96)	(196)
Level 2 | Accrued liabilities | Interest Rate Swap
Gross and net fair values of outstanding derivatives (in millions)
Commodity contract derivative liability, gross		(315)
Level 2 | Deferred credits and other liabilities - other | Marketing Derivatives
Gross and net fair values of outstanding derivatives (in millions)
Commodity contract derivative liability, gross	(1)	0
Level 2 | Deferred credits and other liabilities - other | Interest Rate Swap
Gross and net fair values of outstanding derivatives (in millions)
Commodity contract derivative liability, gross		(436)
Level 3 | Other current assets | Marketing Derivatives
Gross and net fair values of outstanding derivatives (in millions)
Commodity contract derivative asset, gross	0	0
Level 3 | Long-term receivables and other assets, net | Marketing Derivatives
Gross and net fair values of outstanding derivatives (in millions)
Commodity contract derivative asset, gross	0	0
Level 3 | Accrued liabilities | Marketing Derivatives
Gross and net fair values of outstanding derivatives (in millions)
Commodity contract derivative liability, gross	0	0
Level 3 | Accrued liabilities | Interest Rate Swap
Gross and net fair values of outstanding derivatives (in millions)
Commodity contract derivative liability, gross		0
Level 3 | Deferred credits and other liabilities - other | Marketing Derivatives
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 | Interest Rate Swap
Gross and net fair values of outstanding derivatives (in millions)
Commodity contract derivative liability, gross		$ 0