Quarterly report pursuant to Section 13 or 15(d)

REVENUES - Revenues By Market (Details)

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REVENUES - Revenues By Market (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Disaggregation of Revenue [Line Items]    
Revenues $ 5,199 $ 5,295
Steelmaking    
Disaggregation of Revenue [Line Items]    
Revenues 5,027 5,126
Other Businesses    
Disaggregation of Revenue [Line Items]    
Revenues 172 169
Direct automotive | Steelmaking    
Disaggregation of Revenue [Line Items]    
Revenues 1,617 1,870
Direct automotive | Other Businesses    
Disaggregation of Revenue [Line Items]    
Revenues 140 139
Infrastructure and manufacturing | Steelmaking    
Disaggregation of Revenue [Line Items]    
Revenues 1,392 1,297
Infrastructure and manufacturing | Other Businesses    
Disaggregation of Revenue [Line Items]    
Revenues 10 10
Distributors and converters | Steelmaking    
Disaggregation of Revenue [Line Items]    
Revenues 1,412 1,258
Distributors and converters | Other Businesses    
Disaggregation of Revenue [Line Items]    
Revenues 22 20
Steel producers | Steelmaking    
Disaggregation of Revenue [Line Items]    
Revenues $ 606 $ 701