Quarterly report [Sections 13 or 15(d)]

ASSET RETIREMENT OBLIGATIONS (Tables)

v3.25.3
ASSET RETIREMENT OBLIGATIONS (Tables)
9 Months Ended
Sep. 30, 2025
Asset Retirement Obligation [Abstract]  
Summary of Asset Retirement Obligations
The following is a summary of our asset retirement obligations:
(In millions) September 30,
2025
December 31,
2024
Asset retirement obligations1
$ 535  $ 526 
Less: current portion 18  25 
Long-term asset retirement obligations $ 517  $ 501 
1 Includes $310 million and $302 million related to our active operations as of September 30, 2025 and December 31, 2024, respectively.
Schedule of Change in Asset Retirement Obligation
The following is a roll-forward of our asset retirement obligations:
(In millions) 2025 2024
Asset retirement obligations as of January 1 $ 526  $ 459 
Accretion expense 21  17 
Revision in estimated cash flows 4  49 
Remediation payments (16) (24)
Asset retirement obligations as of September 30 $ 535  $ 501 
During the first quarter of 2024, we announced the indefinite idle of our Weirton tinplate production plant, resulting in an increase to our asset retirement obligations as a result of acceleration of the timing and refinement in the cost required.
Schedule of Environmental Obligations
The following is a summary of our environmental obligations:
(In millions) September 30,
2025
December 31,
2024
Environmental obligations $ 112  $ 114 
Less: current portion 15  14 
Long-term environmental obligations $ 97  $ 100