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SEGMENT INFORMATION - Capital Expenditures (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Disclosure of operating segments [line items]    
Capital expenditures $ 1,443 $ 1,382
Cash expenditures 1,400 1,396
Decrease in accrued capital expenditures 43 14
Operating segments    
Disclosure of operating segments [line items]    
Capital expenditures 1,399 1,346
Operating segments | Barrick Nevada    
Disclosure of operating segments [line items]    
Capital expenditures 581 585
Operating segments | Pueblo Viejo    
Disclosure of operating segments [line items]    
Capital expenditures 145 114
Operating segments | Lagunas Norte    
Disclosure of operating segments [line items]    
Capital expenditures 22 25
Operating segments | Veladero    
Disclosure of operating segments [line items]    
Capital expenditures 143 173
Operating segments | Turquoise Ridge    
Disclosure of operating segments [line items]    
Capital expenditures 62 36
Operating segments | Acacia Mining PLC    
Disclosure of operating segments [line items]    
Capital expenditures 93 148
Operating segments | Pascua-Lama    
Disclosure of operating segments [line items]    
Capital expenditures 39 6
Operating segments | Other    
Disclosure of operating segments [line items]    
Capital expenditures 314 259
Other items not allocated to segments    
Disclosure of operating segments [line items]    
Capital expenditures $ 44 $ 36