Annual report pursuant to Section 13 and 15(d)

REVENUES - By Market and Product Line (Details)

v3.20.4
REVENUES - By Market and Product Line (Details)
T in Thousands, $ in Millions
 12 Months Ended
Dec. 31, 2020
USD ($)
T
Dec. 31, 2019
USD ($)
T
Dec. 31, 2018
USD ($)
T
Disaggregation of Revenue [Line Items]      
Revenues $ 5,354 $ 1,990 $ 2,332
Realization of Deferred Revenue 35 0 0
Customer Supply Agreements [Member] | Sales [Member]      
Disaggregation of Revenue [Line Items]      
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net 122 78 426
Steelmaking [Member]      
Disaggregation of Revenue [Line Items]      
Revenues 4,965 1,990 2,332
Steelmaking [Member] | Hot-rolled steel      
Disaggregation of Revenue [Line Items]      
Revenues $ 386 $ 0 $ 0
Sales Volume (Net Tons) | T 633 0 0
Steelmaking [Member] | Cold-rolled steel      
Disaggregation of Revenue [Line Items]      
Revenues $ 490 $ 0 $ 0
Sales Volume (Net Tons) | T 682 0 0
Steelmaking [Member] | Coated steel      
Disaggregation of Revenue [Line Items]      
Revenues $ 1,747 $ 0 $ 0
Sales Volume (Net Tons) | T 1,911 0 0
Steelmaking [Member] | Stainless and electrical steel      
Disaggregation of Revenue [Line Items]      
Revenues $ 868 $ 0 $ 0
Sales Volume (Net Tons) | T 416 0 0
Steelmaking [Member] | Other steel products      
Disaggregation of Revenue [Line Items]      
Revenues $ 92 $ 0 $ 0
Sales Volume (Net Tons) | T 141 0 0
Steelmaking [Member] | Iron products      
Disaggregation of Revenue [Line Items]      
Revenues $ 1,335 $ 1,990 $ 2,332
Sales Volume (Long Tons) | T 11,707 18,583 20,563
Steelmaking [Member] | Other [Member]      
Disaggregation of Revenue [Line Items]      
Revenues $ 47 $ 0 $ 0
Other businesses      
Disaggregation of Revenue [Line Items]      
Revenues 389 0 0
Other businesses | Other [Member]      
Disaggregation of Revenue [Line Items]      
Revenues 389 0 0
Automotive [Member] | Steelmaking [Member]      
Disaggregation of Revenue [Line Items]      
Revenues 2,062 0 0
Automotive [Member] | Other businesses      
Disaggregation of Revenue [Line Items]      
Revenues 329 0 0
Infrastructure and manufacturing | Steelmaking [Member]      
Disaggregation of Revenue [Line Items]      
Revenues 784 0 0
Infrastructure and manufacturing | Other businesses      
Disaggregation of Revenue [Line Items]      
Revenues 34 0 0
Distributors and converters | Steelmaking [Member]      
Disaggregation of Revenue [Line Items]      
Revenues 696 0 0
Distributors and converters | Other businesses      
Disaggregation of Revenue [Line Items]      
Revenues 26 0 0
Steel producers | Steelmaking [Member]      
Disaggregation of Revenue [Line Items]      
Revenues $ 1,423 $ 1,990 $ 2,332