SEGMENT REPORTING - Segment Reporting Information (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2024 |
Sep. 30, 2023 |
Sep. 30, 2024 |
Sep. 30, 2023 |
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| Segment Reporting Information [Line Items] | Ìý | Ìý | Ìý | Ìý |
| Depreciation, depletion and amortization | $ (235) | $ (249) | $ (693) | $ (738) |
| Capital additions | 211 | 218 | 557 | 508 |
| Steelmaking | Ìý | Ìý | Ìý | Ìý |
| Segment Reporting Information [Line Items] | Ìý | Ìý | Ìý | Ìý |
| Depreciation, depletion and amortization | (228) | (241) | (669) | (711) |
| Capital additions | 211 | 217 | 554 | 503 |
| Other Businesses | Ìý | Ìý | Ìý | Ìý |
| Segment Reporting Information [Line Items] | Ìý | Ìý | Ìý | Ìý |
| Depreciation, depletion and amortization | (7) | (8) | (24) | (27) |
| Capital additions | 0 | 0 | 3 | 3 |
| Corporate Segment and Other Operating Segment | Ìý | Ìý | Ìý | Ìý |
| Segment Reporting Information [Line Items] | Ìý | Ìý | Ìý | Ìý |
| Capital additions | $ 0 | $ 1 | $ 0 | $ 2 |
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- Definition The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of expenditure for addition to long-lived assets included in determination of segment assets by chief operating decision maker (CODM) or otherwise regularly provided to CODM. Excludes expenditure for addition to financial instrument, long-term customer relationship of financial institution, mortgage and other servicing rights, deferred policy acquisition cost, and deferred tax assets. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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