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Quarterly report pursuant to Section 13 or 15(d)

ASSET RETIREMENT OBLIGATIONS (Tables)

v3.23.1
ASSET RETIREMENT OBLIGATIONS (Tables)
3 Months Ended
Mar. 31, 2023
Asset Retirement Obligation [Abstract] Ìý
Summary Of Asset Retirement Obligations
The following is a summary of our asset retirement obligations:
(In millions) March 31,
2023
December 31,
2022
Asset retirement obligations1
$ 524Ìý $ 520Ìý
Less: current portion 24Ìý 21Ìý
Long-term asset retirement obligations $ 500Ìý $ 499Ìý
1 Includes $279 million and $277 million related to our active operations as of MarchÌý31, 2023 and DecemberÌý31, 2022, respectively.
Schedule of Change in Asset Retirement Obligation
The following is a roll forward of our asset retirement obligation liability:
(In millions) 2023 2022
Asset retirement obligation as of January 1 $ 520Ìý $ 449Ìý
Accretion expense 8Ìý 7Ìý
Revision in estimated cash flows —Ìý 7Ìý
Remediation payments (4) (3)
Asset retirement obligation as of March 31 $ 524Ìý $ 460Ìý