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) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Disaggregation of Revenue [Line Items]    
Revenues $ 5,295 $ 5,955
Steelmaking    
Disaggregation of Revenue [Line Items]    
Revenues 5,126 5,794
Other Businesses    
Disaggregation of Revenue [Line Items]    
Revenues 169 161
Hot-rolled steel | Steelmaking    
Disaggregation of Revenue [Line Items]    
Revenues 1,121 1,194
Cold-rolled steel | Steelmaking    
Disaggregation of Revenue [Line Items]    
Revenues 639 984
Coated steel | Steelmaking    
Disaggregation of Revenue [Line Items]    
Revenues 1,617 1,775
Stainless and electrical steel | Steelmaking    
Disaggregation of Revenue [Line Items]    
Revenues 574 551
Plate | Steelmaking    
Disaggregation of Revenue [Line Items]    
Revenues 331 421
Slab and other steel products | Steelmaking    
Disaggregation of Revenue [Line Items]    
Revenues 327 334
Other | Steelmaking    
Disaggregation of Revenue [Line Items]    
Revenues 517 535
Other | Other Businesses    
Disaggregation of Revenue [Line Items]    
Revenues $ 169 $ 161