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PROPERTY, PLANT AND EQUIPMENT - Narrative (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Disclosure of detailed information about property, plant and equipment [line items]    
Additions to right-of-use assets $ 22 $ 4
Depreciation, right-of-use assets (18) (21)
Net carrying amount of right-of-use assets 53 50
Expense relating to short-term leases for which recognition exemption has been used 10 14
Expense relating to variable lease payments not included in measurement of lease liabilities 67 35
Mining property subject to depreciation [Member] | Revision of LOM Plan    
Disclosure of detailed information about property, plant and equipment [line items]    
Effect of changes in our LOM on amortization expense 128 170
Construction activities    
Disclosure of detailed information about property, plant and equipment [line items]    
Capital commitments $ 443 $ 223