ASSET RETIREMENT OBLIGATIONS (Tables)

12 Months Ended

Dec. 31, 2022

Environmental Remediation Obligations [Abstract]

Schedule of Asset Retirement Obligations

The following is a summary of our asset retirement obligations:

	December 31,
(In millions)	2022		2021
Asset retirement obligations1	$	520	$	449
Less: current portion	21		35
Long-term asset retirement obligations	$	499	$	414
1 Includes $277 million and $293 million related to our active operations as of December 31, 2022 and 2021, respectively.

Roll-forward of Asset Retirement Obligation Liability

The following is a roll-forward of our asset retirement obligation liability:

(In millions)	2022		2021
Asset retirement obligation as of January 1	$	449	$	342
Increase from acquisitions	—		116
Reclassification from environmental obligations	63		—
Accretion expense	26		18
Remediation payments	(40)		(29)
Revision in estimated cash flows	22		2
Asset retirement obligation as of December 31	$	520	$	449