XML 63 R37.htm IDEA: XBRL DOCUMENT
v3.25.1

ASSET RETIREMENT OBLIGATIONS (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2025
Asset Retirement Obligation [Abstract] |
Summary of Asset Retirement Obligations | The following is a summary of our asset retirement obligations:
(In millions) | March 31, 2025 |  | December 31, 2024
Asset retirement obligations 1 | $ | 525 |  |  | $ | 526 |
Less: current portion | 19 |  |  | 25 |
Long-term asset retirement obligations | $ | 506 |  |  | $ | 501 |
1 Includes $305 million and $302 million related to our active operations as of March 31, 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 | 7 |  |  | 5 |
Revision in estimated cash flows | — |  |  | 48 |
Remediation payments | (8) |  |  | (2) |
Asset retirement obligations as of March 31 | $ | 525 |  |  | $ | 510 |
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 of required remediation.
Schedule of Environmental Obligations | The following is a summary of our environmental obligations:
(In millions) | March 31, 2025 |  | December 31, 2024
Environmental obligations | $ | 113 |  |  | $ | 114 |
Less: current portion | 11 |  |  | 14 |
Long-term environmental obligations | $ | 102 |  |  | $ | 100 |

X
- References No definition available. + Details
Name: | us-gaap_AssetRetirementObligationAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the carrying amount of a liability for asset retirement obligations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 410 -SubTopic 20 -Name Accounting Standards Codification -Paragraph 1 -Section 50 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481850/410-20-50-1 + Details
Name: | us-gaap_ScheduleOfAssetRetirementObligationsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the changes in carrying amount of a liability for asset retirement obligations, for changes such as new obligations, changes in estimates of existing obligations, spending on existing obligations, property dispositions, and foreign currency translation. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 410 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481850/410-20-50-1 + Details
Name: | us-gaap_ScheduleOfChangeInAssetRetirementObligationTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of environmental loss contingencies by individual site. Does not include loss contingencies that are not environmental in nature. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 450 -SubTopic 20 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 5.Y.Q1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480102/450-20-S99-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 450 -SubTopic 20 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 5.Y.Q2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480102/450-20-S99-1 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 410 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Subparagraph (d)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481931/410-30-50-10 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 410 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Subparagraph (d)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481931/410-30-50-10 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 410 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Subparagraph (d)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481931/410-30-50-10 + Details
Name: | us-gaap_ScheduleOfEnvironmentalLossContingenciesBySiteTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration