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

REVENUES - By Market and Product Line (Details)

v3.25.4
REVENUES - By Market and Product Line (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disaggregation of Revenue [Line Items]      
Revenues $ 18,610 $ 19,185 $ 21,996
Steelmaking      
Disaggregation of Revenue [Line Items]      
Revenues 18,063 18,620 21,413
Steelmaking | Third Party      
Disaggregation of Revenue [Line Items]      
Revenues 17,953 18,529 21,331
Steelmaking | Hot-rolled steel      
Disaggregation of Revenue [Line Items]      
Revenues 4,770 4,276 4,864
Steelmaking | Cold-rolled steel      
Disaggregation of Revenue [Line Items]      
Revenues 2,402 2,712 2,658
Steelmaking | Coated steel      
Disaggregation of Revenue [Line Items]      
Revenues 5,431 5,773 6,661
Steelmaking | Stainless and electrical steel      
Disaggregation of Revenue [Line Items]      
Revenues 1,748 1,807 2,281
Steelmaking | Plate      
Disaggregation of Revenue [Line Items]      
Revenues 1,079 1,119 1,444
Steelmaking | Slab and other steel products      
Disaggregation of Revenue [Line Items]      
Revenues 881 1,178 1,329
Steelmaking | Other      
Disaggregation of Revenue [Line Items]      
Revenues 1,642 1,664 2,094
Other Businesses      
Disaggregation of Revenue [Line Items]      
Revenues 657 656 665
Other Businesses | Other      
Disaggregation of Revenue [Line Items]      
Revenues 657 656 665
Automotive | Steelmaking      
Disaggregation of Revenue [Line Items]      
Revenues 5,047 5,571 7,440
Automotive | Other Businesses      
Disaggregation of Revenue [Line Items]      
Revenues 537 540 545
Infrastructure and manufacturing | Steelmaking      
Disaggregation of Revenue [Line Items]      
Revenues 5,377 5,208 5,612
Infrastructure and manufacturing | Other Businesses      
Disaggregation of Revenue [Line Items]      
Revenues 43 39 38
Distributors and converters | Steelmaking      
Disaggregation of Revenue [Line Items]      
Revenues 5,195 5,281 5,330
Distributors and converters | Other Businesses      
Disaggregation of Revenue [Line Items]      
Revenues 77 77 82
Steel producers | Steelmaking      
Disaggregation of Revenue [Line Items]      
Revenues $ 2,334 $ 2,469 $ 2,949