Annual report [Section 13 and 15(d), not S-K Item 405]

SEGMENT REPORTING - Schedule Of Segment Reporting Information, By Segment (Details)

v3.25.4
SEGMENT REPORTING - Schedule Of Segment Reporting Information, By Segment (Details)
$ in Millions
 12 Months Ended
Dec. 31, 2025
USD ($)
segment
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Segment Reporting Information [Line Items]      
Number of operating segments | segment 4    
Number of reportable segments | segment 1    
Revenues $ 18,610 $ 19,185 $ 21,996
Income from continuing operations attributable to noncontrolling interest 50 46 51
Net periodic benefit credits other than service cost component 223 247 204
Adjusted EBITDA 37 773 1,893
Net income (loss) (1,428) (714) 436
Segment Reporting, Other Segment Item, Amount (18) (2) (80)
Restructuring Costs and Asset Impairment Charges   210  
Loss on extinguishment of debt (10) (27) 0
Interest expense, net (594) (370) (289)
Income Tax Expense (Benefit) 581 236 (144)
Depreciation, depletion and amortization (1,235) (951) (973)
Adj EBITDA Calculation      
Segment Reporting Information [Line Items]      
Other, net (18)   1
Restructuring Costs and Asset Impairment Charges (239)    
Unrealized Gain (Loss) on Derivatives and Commodity Contracts (45)    
Expenses and Losses, Reporting Currency Denominated, Value (37)    
Severance Costs (25)   (11)
Loss on extinguishment of debt (10)    
Amortization Of Inventory Step-Up 6    
Interest expense, net (594)   (289)
Income Tax Expense (Benefit) 581   (144)
Depreciation, depletion and amortization (1,235)   (973)
EBITDA of noncontrolling interests 76   83
Gain (Loss) on Disposition of Other Assets (7)   (15)
Acquisition-related costs (1)   (12)
Adjusted EBITDA Calculation      
Segment Reporting Information [Line Items]      
Income from continuing operations attributable to noncontrolling interest     51
EBITDA Calculation      
Segment Reporting Information [Line Items]      
Income from continuing operations attributable to noncontrolling interest 50 46  
Net income (loss)   (714)  
Restructuring Costs and Asset Impairment Charges   (217)  
Unrealized Gain (Loss) on Derivatives and Commodity Contracts   (41)  
Expenses and Losses, Reporting Currency Denominated, Value   (20)  
Severance Costs   (16)  
Loss on extinguishment of debt   (27)  
Amortization Of Inventory Step-Up   (26)  
Litigation Settlement, Amount Awarded to Other Party   (71)  
Interest expense, net   (370)  
Income Tax Expense (Benefit)   236  
Depreciation, depletion and amortization   (951)  
EBITDA of noncontrolling interests   76  
Gain (Loss) on Disposition of Other Assets   (16)  
Acquisition-related costs   (44)  
Steelmaking      
Segment Reporting Information [Line Items]      
Revenues 18,063 18,620 21,413
Net periodic benefit credits other than service cost component 223 247 204
Adjusted EBITDA (16) 715 1,855
Segment Reporting, Other Segment Item, Amount (19) (2) (78)
Depreciation, depletion and amortization (1,204) (919) (938)
Other Businesses      
Segment Reporting Information [Line Items]      
Revenues 657 656 665
Net periodic benefit credits other than service cost component 0 0 0
Adjusted EBITDA 53 53 43
Segment Reporting, Other Segment Item, Amount 1 0 (2)
Depreciation, depletion and amortization (31) (32) (35)
Eliminations      
Segment Reporting Information [Line Items]      
Revenues (110) (91) (82)
Net periodic benefit credits other than service cost component 0 0 0
Adjusted EBITDA 0 5 (5)
Segment Reporting, Other Segment Item, Amount 0 0 0
Depreciation, depletion and amortization $ 0 $ 0 $ 0