Annual report pursuant to Section 13 and 15(d)

ACQUISITIONS - Narrative (Details)

v3.22.4
ACQUISITIONS - Narrative (Details)
$ in Millions
1 Months Ended 12 Months Ended 13 Months Ended
Mar. 13, 2020
Dec. 31, 2021
USD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
segment
Dec. 31, 2021
USD ($)
Business Acquisition [Line Items]            
Number of businesses acquired | segment         2  
Revenues     $ 22,989 $ 20,444 $ 5,354  
Net loss attributable to acquisition     1,335 2,988 (122)  
Amortization of inventory step-up     0 161 96  
Acquisition-related costs     4 20 90  
Ferrous Processing and Trading            
Business Acquisition [Line Items]            
Revenues   $ 153        
Net loss attributable to acquisition   18        
Amortization of inventory step-up   $ 22        
Goodwill that is deductible for tax purposes     $ 296      
ArcelorMittal USA            
Business Acquisition [Line Items]            
Acquisition-related costs       3 26  
Revaluation of equity method investment           $ 31
AK Steel            
Business Acquisition [Line Items]            
Acquisition-related costs       $ 1 $ 26  
Exchange ratio 0.400