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PROVISIONS - Provisions by Type (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Disclosure of other provisions [line items]    
Provisions $ 2,768 $ 3,139
Environmental rehabilitation (“PER”)    
Disclosure of other provisions [line items]    
Provisions 2,559 2,950
Post-retirement benefits    
Disclosure of other provisions [line items]    
Provisions 48 43
Share-based payments    
Disclosure of other provisions [line items]    
Provisions 17 24
Other employee benefits    
Disclosure of other provisions [line items]    
Provisions 42 25
Other    
Disclosure of other provisions [line items]    
Provisions $ 102 $ 97