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SEGMENT REPORTING - Schedule Of Segment Reporting Information, By Segment (Details) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 USD ($) segment | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
Segment Reporting Information [Line Items] |  |  |
Number of operating segments | segment | 4 |  |
Number of reportable segments | segment | 1 |  |
Revenues | $ 19,185 | $ 21,996 | $ 22,989
Income from continuing operations attributable to noncontrolling interest | 46 | 51 | 41
Net periodic benefit credits other than service cost component | 247 | 204 | 212
Adjusted EBITDA | 780 | 1,911 | 3,169
Net income (loss) | (708) | 450 | 1,376
Segment Reporting, Other Segment Item, Amount | (2) | (80) | (130)
Adjusted EBITDA Calculation |  |  |
Segment Reporting Information [Line Items] |  |  |
Income from continuing operations attributable to noncontrolling interest |  |  | 41
Steelmaking |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 18,620 | 21,413 | 22,462
Net periodic benefit credits other than service cost component | 247 | 204 | 212
Adjusted EBITDA | 722 | 1,873 | 3,089
Segment Reporting, Other Segment Item, Amount | (2) | (78) | (136)
Other Businesses |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 656 | 665 | 606
Net periodic benefit credits other than service cost component | 0 | 0 | 0
Adjusted EBITDA | 53 | 43 | 69
Segment Reporting, Other Segment Item, Amount | 0 | (2) | 6
Eliminations |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | (91) | (82) | (79)
Net periodic benefit credits other than service cost component | 0 | 0 | 0
Adjusted EBITDA | 5 | (5) | 11
Segment Reporting, Other Segment Item, Amount | $ 0 | $ 0 | $ 0

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