Quarterly report pursuant to Section 13 or 15(d)

ACQUISITIONS - ArcelorMittal USA Allocation of Consideration (Details)

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ACQUISITIONS - ArcelorMittal USA Allocation of Consideration (Details) - USD ($)
$ in Millions
10 Months Ended
Sep. 30, 2021
Dec. 31, 2020
Dec. 09, 2020
Purchase Price Allocation to Net Assets      
Goodwill $ 1,072 $ 1,406  
ArcelorMittal USA      
Purchase Price Allocation to Net Assets      
Cash and cash equivalents 35   $ 35
Measurement Period Adjustments, Cash and cash equivalents 0    
Accounts receivable, net 344   349
Measurement Period Adjustments, Accounts receivable, net (5)    
Inventories 2,129   2,115
Measurement Period Adjustments, Inventories 14    
Other current assets 33   34
Measurement Period Adjustments, Other current assets (1)    
Property, plant and equipment 4,389   4,017
Measurement Period Adjustments, Property, plant, and equipment 372    
Other non-current assets 165   158
Measurement Period Adjustments, Other non-current assets 7    
Accounts payable (731)   (758)
Measurement Period Adjustments, Accounts payable 27    
Accrued employment costs (267)   (271)
Measurement Period Adjustments, Accrued employment costs 4    
Pension and OPEB liabilities, current (109)   (109)
Measurement Period Adjustments, Pension and OPEB liabilities, current 0    
Other current liabilities (406)   (398)
Measurement Period Adjustments, Other current liabilities (8)    
Pension and OPEB liabilities, non-current (3,195)   (3,195)
Measurement Period Adjustments, Pension and OPEB liabilities, noncurrent 0    
Other non-current liabilities (679)   (598)
Measurement Period Adjustments, Other non-current liabilities (81)    
Noncontrolling interest 0   (13)
Measurement Period Adjustments, Noncontrolling interest 13    
Net identifiable assets acquired 1,708   1,366
Measurement Period Adjustments, Net identifiable assets acquired 342    
Goodwill 896   1,230
Measurement Period Adjustments, Goodwill (334)    
Total net assets acquired 2,604   $ 2,596
Measurement Period Adjustments, Total net assets acquired $ 8