Quarterly report pursuant to Section 13 or 15(d)

ASSET RETIREMENT OBLIGATIONS - Asset Retirement Obligation Disclosure (Details)

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ASSET RETIREMENT OBLIGATIONS - Asset Retirement Obligation Disclosure (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Asset Retirement Obligation [Roll Forward]    
Asset retirement obligation at beginning of period $ 459 $ 520
Accretion expense 5 8
Revision in estimated cash flows 48 0
Remediation payments (2) (4)
Asset retirement obligation at end of period $ 510 $ 524