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IMPAIRMENT OF GOODWILL AND OTHER ASSETS Impairment Losses (Reversals) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Disclosure of impairment loss and reversal of impairment loss [line items]        
Impairment reversals $ (59) $ 5 $ (61) $ 1,130
Joint ventures [member]        
Disclosure of impairment loss and reversal of impairment loss [line items]        
Impairment reversals (30) 0 (30) 0
Acacia Mining PLC [Member]        
Disclosure of impairment loss and reversal of impairment loss [line items]        
Impairment reversals (24) 0 (24) 0
Barrick Nevada [Member]        
Disclosure of impairment loss and reversal of impairment loss [line items]        
Impairment reversals (11) 0 (14) 0
Cerro Casale [Member]        
Disclosure of impairment loss and reversal of impairment loss [line items]        
Impairment reversals 0 0 0 1,120
Pascua-Lama [Member]        
Disclosure of impairment loss and reversal of impairment loss [line items]        
Impairment reversals 6 9 7 15
Other impaired assets [member]        
Disclosure of impairment loss and reversal of impairment loss [line items]        
Impairment reversals $ 0 $ (4) $ 0 $ (5)