Quarterly report pursuant to Section 13 or 15(d)

ASSET RETIREMENT OBLIGATIONS (Tables)

v3.22.1
ASSET RETIREMENT OBLIGATIONS (Tables)
3 Months Ended
Mar. 31, 2022
Asset Retirement Obligation [Abstract]  
Summary Of Asset Retirement Obligations
The following is a summary of our asset retirement obligations:
(In Millions)
March 31,
2022
December 31,
2021
Asset retirement obligations1
$ 460  $ 449 
Less: current portion 33  35 
Long-term asset retirement obligations $ 427  $ 414 
1 Includes $297 million and $293 million related to our active operations as of March 31, 2022 and December 31, 2021, respectively.
Schedule of Change in Asset Retirement Obligation
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 
Decrease from acquisitions   (34)
Accretion expense 7 
Revision in estimated cash flows 7  — 
Remediation payments (3) (1)
Asset retirement obligation as of March 31 $ 460  $ 310