Annual report pursuant to Section 13 and 15(d)

REVENUES - By Market and Product Line (Details)

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REVENUES - By Market and Product Line (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Disaggregation of Revenue [Line Items]      
Revenues $ 21,996 $ 22,989 $ 20,444
Steelmaking      
Disaggregation of Revenue [Line Items]      
Revenues 21,331 22,383 19,901
Steelmaking | Hot-rolled steel      
Disaggregation of Revenue [Line Items]      
Revenues 4,864 4,529 5,615
Steelmaking | Cold-rolled steel      
Disaggregation of Revenue [Line Items]      
Revenues 2,658 3,193 3,186
Steelmaking | Coated steel      
Disaggregation of Revenue [Line Items]      
Revenues 6,661 6,905 5,864
Steelmaking | Stainless and electrical steel      
Disaggregation of Revenue [Line Items]      
Revenues 2,281 2,284 1,622
Steelmaking | Plate      
Disaggregation of Revenue [Line Items]      
Revenues 1,444 1,651 1,316
Steelmaking | Slab and other steel products      
Disaggregation of Revenue [Line Items]      
Revenues 1,329 1,492 1,247
Steelmaking | Other      
Disaggregation of Revenue [Line Items]      
Revenues 2,094 2,329 1,051
Other Businesses      
Disaggregation of Revenue [Line Items]      
Revenues 665 606 543
Other Businesses | Other      
Disaggregation of Revenue [Line Items]      
Revenues 665 606 543
Automotive | Steelmaking      
Disaggregation of Revenue [Line Items]      
Revenues 7,440 6,661 4,726
Automotive | Other Businesses      
Disaggregation of Revenue [Line Items]      
Revenues 545 478 426
Infrastructure and manufacturing | Steelmaking      
Disaggregation of Revenue [Line Items]      
Revenues 5,612 5,869 5,380
Infrastructure and manufacturing | Other Businesses      
Disaggregation of Revenue [Line Items]      
Revenues 38 52 47
Distributors and converters | Steelmaking      
Disaggregation of Revenue [Line Items]      
Revenues 5,330 6,388 7,671
Distributors and converters | Other Businesses      
Disaggregation of Revenue [Line Items]      
Revenues 82 76 70
Steel producers | Steelmaking      
Disaggregation of Revenue [Line Items]      
Revenues $ 2,949 $ 3,465 $ 2,124