Quarterly report pursuant to Section 13 or 15(d)

REVENUES - Revenues By Product Line (Details)

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REVENUES - Revenues By Product Line (Details)
T in Thousands, $ in Millions
 3 Months Ended
Mar. 31, 2022
USD ($)
T
Mar. 31, 2021
USD ($)
T
Disaggregation of Revenue [Line Items]    
Revenues $ 5,955 $ 4,049
Steelmaking    
Disaggregation of Revenue [Line Items]    
Revenues 5,794 3,919
Other Businesses    
Disaggregation of Revenue [Line Items]    
Revenues 161 130
Hot-rolled steel | Steelmaking    
Disaggregation of Revenue [Line Items]    
Revenues $ 1,194 $ 895
Sales Volume (Net Tons) | T 903 1,182
Cold-rolled steel | Steelmaking    
Disaggregation of Revenue [Line Items]    
Revenues $ 984 $ 632
Sales Volume (Net Tons) | T 651 748
Coated steel | Steelmaking    
Disaggregation of Revenue [Line Items]    
Revenues $ 1,775 $ 1,308
Sales Volume (Net Tons) | T 1,242 1,369
Stainless and electrical steel | Steelmaking    
Disaggregation of Revenue [Line Items]    
Revenues $ 551 $ 363
Sales Volume (Net Tons) | T 189 167
Plate | Steelmaking    
Disaggregation of Revenue [Line Items]    
Revenues $ 421 $ 244
Sales Volume (Net Tons) | T 221 275
Other steel products | Steelmaking    
Disaggregation of Revenue [Line Items]    
Revenues $ 334 $ 289
Sales Volume (Net Tons) | T 431 403
Other | Steelmaking    
Disaggregation of Revenue [Line Items]    
Revenues $ 535 $ 188
Other | Other Businesses    
Disaggregation of Revenue [Line Items]    
Revenues $ 161 $ 130