Quarterly report [Sections 13 or 15(d)]

REVENUES - Revenues By Market (Details)

v3.25.2
REVENUES - Revenues By Market (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Disaggregation of Revenue [Line Items]        
Revenues $ 4,934 $ 5,092 $ 9,563 $ 10,291
Steelmaking [Member]        
Disaggregation of Revenue [Line Items]        
Revenues 4,808 4,937 9,303 9,990
Steelmaking [Member] | Third Party        
Disaggregation of Revenue [Line Items]        
Revenues 4,771 4,915 9,238 9,942
Other Businesses [Member]        
Disaggregation of Revenue [Line Items]        
Revenues 163 177 325 349
Automotive | Steelmaking [Member]        
Disaggregation of Revenue [Line Items]        
Revenues 1,249 1,460 2,546 3,077
Automotive | Other Businesses [Member]        
Disaggregation of Revenue [Line Items]        
Revenues 129 148 259 288
Infrastructure and manufacturing | Steelmaking [Member]        
Disaggregation of Revenue [Line Items]        
Revenues 1,489 1,421 2,843 2,813
Infrastructure and manufacturing | Other Businesses [Member]        
Disaggregation of Revenue [Line Items]        
Revenues 14 10 24 20
Distributors and converters | Steelmaking [Member]        
Disaggregation of Revenue [Line Items]        
Revenues 1,433 1,402 2,661 2,814
Distributors and converters | Other Businesses [Member]        
Disaggregation of Revenue [Line Items]        
Revenues 20 19 42 41
Other | Steelmaking [Member]        
Disaggregation of Revenue [Line Items]        
Revenues $ 600 $ 632 $ 1,188 $ 1,238