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INVENTORIES - Ore in Stockpiles and on Leach Pads (Details) - USD ($)
$ in Millions
Dec. 31, 2017
Dec. 31, 2016
Disclosure of operating segments [line items]    
Ore in Stockpiles $ 2,227 $ 2,139
Ore on Leach pads 405 406
Gold    
Disclosure of operating segments [line items]    
Ore in Stockpiles 2,125 2,067
Ore on Leach pads 405 406
Gold | Barrick Nevada    
Disclosure of operating segments [line items]    
Ore in Stockpiles 1,040 1,128
Ore on Leach pads 105 109
Gold | Pueblo Viejo    
Disclosure of operating segments [line items]    
Ore in Stockpiles 538 475
Gold | Porgera    
Disclosure of operating segments [line items]    
Ore in Stockpiles 55 77
Gold | Kalgoorlie    
Disclosure of operating segments [line items]    
Ore in Stockpiles 138 127
Gold | Lagunas Norte    
Disclosure of operating segments [line items]    
Ore in Stockpiles 147 91
Ore on Leach pads 143 97
Gold | Buzwagi    
Disclosure of operating segments [line items]    
Ore in Stockpiles 109 64
Gold | North Mara    
Disclosure of operating segments [line items]    
Ore in Stockpiles 47 41
Gold | Veladero    
Disclosure of operating segments [line items]    
Ore in Stockpiles 22 38
Ore on Leach pads 145 172
Gold | Turquoise Ridge    
Disclosure of operating segments [line items]    
Ore in Stockpiles 26 22
Gold | Other    
Disclosure of operating segments [line items]    
Ore in Stockpiles 3 4
Gold | Pierina    
Disclosure of operating segments [line items]    
Ore on Leach pads 12 28
Copper    
Disclosure of operating segments [line items]    
Ore in Stockpiles 102 72
Ore on Leach pads 0 0
Copper | Lumwana    
Disclosure of operating segments [line items]    
Ore in Stockpiles $ 102 $ 72