v3.26.1
SEGMENT REPORTING - EBITDA Reconciliation and Capital Additions (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Segment Reporting Information [Line Items]        
Revenues $ 5,226 $ 4,934 $ 10,148 $ 9,563
Cost of Product and Service Sold (5,094) (5,146) (10,098) (10,171)
Selling, General and Administrative Expense (154) (137) (279) (270)
Net periodic benefit costs (credits) 64 43 128 100
Depreciation, depletion and amortization 262 393 521 675
Segment Reporting, Other Segment Item, Amount (18) 7 (39) 18
Adjusted EBITDA 286 94 381 (85)
Interest expense, net (156) (149) (304) (289)
Income Tax Expense (Benefit) 20 148 101 297
Depreciation, depletion and amortization (262) (393) (521) (675)
Changes in fair value of derivatives, net 12 15 22 24
Net loss (134) (473) (363) (959)
Capital additions 189 152 315 281
Net Income (Loss) Attributable to Noncontrolling Interest 11 13 19 25
Depreciation, depletion and amortization attributable to noncontrolling interests 5 7 12 13
Adj EBITDA Calculation        
Segment Reporting Information [Line Items]        
Depreciation, depletion and amortization 262 393 521 675
Interest expense, net (156) (149) (304) (289)
Income Tax Expense (Benefit) 20 148 101 297
Depreciation, depletion and amortization (262) (393) (521) (675)
EBITDA of noncontrolling interests 16 20 31 38
Idled facilities employment charges (5) (204) 5 (248)
Gain (Loss), Foreign Currency Transaction, before Tax (19) 48 (33) 46
Changes in fair value of derivatives, net (12) (15) (22) (24)
Amortization of inventory step-up [Abstract]   (1)   6
Other Adjustments, Net (4)   (9) (1)
Gain (Loss) on Disposition of Other Assets 2 (2) 9 (4)
Severance Costs   (19) (1) (20)
Steelmaking        
Segment Reporting Information [Line Items]        
Revenues 5,096 4,808 9,893 9,303
Cost of Product and Service Sold (4,983) (5,034) (9,875) (9,934)
Selling, General and Administrative Expense (147) (130) (264) (256)
Net periodic benefit costs (credits) 64 43 128 100
Depreciation, depletion and amortization 254 386 505 660
Segment Reporting, Other Segment Item, Amount (16) 7 (39) 18
Adjusted EBITDA 268 80 348 (109)
Depreciation, depletion and amortization (254) (386) (505) (660)
Capital additions 187 150 311 273
Other Businesses        
Segment Reporting Information [Line Items]        
Revenues 177 163 344 325
Cost of Product and Service Sold (158) (147) (312) (300)
Selling, General and Administrative Expense (7) (7) (15) (14)
Net periodic benefit costs (credits) 0 0 0 0
Depreciation, depletion and amortization 8 7 16 15
Segment Reporting, Other Segment Item, Amount (2) 0 0 0
Adjusted EBITDA 18 16 33 26
Depreciation, depletion and amortization (8) (7) (16) (15)
Capital additions 2 2 4 8
Eliminations        
Segment Reporting Information [Line Items]        
Revenues (47) (37) (89) (65)
Cost of Product and Service Sold 47 35 89 63
Selling, General and Administrative Expense 0 0 0 0
Net periodic benefit costs (credits) 0 0 0 0
Depreciation, depletion and amortization 0 0 0 0
Segment Reporting, Other Segment Item, Amount 0 0 0 0
Adjusted EBITDA 0 (2) 0 (2)
Depreciation, depletion and amortization 0 0 0 0
Capital additions $ 0 $ 0 $ 0 $ 0