v3.26.1
REVENUES - Revenues By Market (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Disaggregation of Revenue [Line Items]        
Revenues $ 5,226 $ 4,934 $ 10,148 $ 9,563
Steelmaking        
Disaggregation of Revenue [Line Items]        
Revenues 5,096 4,808 9,893 9,303
Steelmaking | Third Party        
Disaggregation of Revenue [Line Items]        
Revenues 5,052 4,771 9,809 9,238
Other Businesses        
Disaggregation of Revenue [Line Items]        
Revenues 177 163 344 325
Other Businesses | Third Party        
Disaggregation of Revenue [Line Items]        
Revenues 174   339 325
Direct automotive | Steelmaking        
Disaggregation of Revenue [Line Items]        
Revenues 1,461 1,249 2,829 2,546
Direct automotive | Other Businesses        
Disaggregation of Revenue [Line Items]        
Revenues 147 129 285 259
Infrastructure and manufacturing | Steelmaking        
Disaggregation of Revenue [Line Items]        
Revenues 1,427 1,489 2,801 2,843
Infrastructure and manufacturing | Other Businesses        
Disaggregation of Revenue [Line Items]        
Revenues 11 14 20 24
Distributors and converters | Steelmaking        
Disaggregation of Revenue [Line Items]        
Revenues 1,638 1,433 3,101 2,661
Distributors and converters | Other Businesses        
Disaggregation of Revenue [Line Items]        
Revenues 16 20 34 42
Steel producers | Steelmaking        
Disaggregation of Revenue [Line Items]        
Revenues $ 526 $ 600 $ 1,078 $ 1,188