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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
Segment Reporting Information [Line Items] |  |  |  |
Depreciation, depletion and amortization | $ (235) | $ (249) | $ (693) | $ (738)
Capital additions | 211 | 218 | 557 | 508
Steelmaking |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Depreciation, depletion and amortization | (228) | (241) | (669) | (711)
Capital additions | 211 | 217 | 554 | 503
Other Businesses |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Depreciation, depletion and amortization | (7) | (8) | (24) | (27)
Capital additions | 0 | 0 | 3 | 3
Corporate Segment and Other Operating Segment |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Capital additions | $ 0 | $ 1 | $ 0 | $ 2

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