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FINANCIAL INSTRUMENTS - Debt and Interest (Details) - USD ($)
 12 Months Ended
May 02, 2013
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Jun. 30, 2011
Oct. 16, 2009
Disclosure of detailed information about borrowings [line items]              
Borrowings   $ 6,423,000,000 $ 7,931,000,000        
Proceeds   0 0        
Repayments   (687,000,000) (1,533,000,000)        
Amortization and other   2,000,000 25,000,000        
Borrowings   5,738,000,000 6,423,000,000 $ 7,931,000,000      
Less: current portion   (43,000,000) (59,000,000) 143,000,000      
Non-current portion of non-current borrowings   5,695,000,000 6,364,000,000 7,788,000,000      
Proceeds from current borrowings   0 0        
Proceeds from non-current borrowings   0 0        
Less: Repayments of current borrowings   0 0        
Repayments of non-current borrowings   (687,000,000) (1,533,000,000)        
Gross amount              
Disclosure of detailed information about borrowings [line items]              
Borrowings   5,747,000,000          
BNAF Notes Due 2021 and 2041              
Disclosure of detailed information about borrowings [line items]              
Borrowings   1,468,000,000 1,467,000,000        
Proceeds   0 0        
Repayments   (629,000,000) 0        
Amortization and other   3,000,000 1,000,000        
Borrowings   842,000,000 1,468,000,000 1,467,000,000      
BNAF Notes Due 2021              
Disclosure of detailed information about borrowings [line items]              
Borrowings   629,000,000          
Repayments   0 (721,000,000)        
Borrowings   0 629,000,000        
Borrowings, interest rate (as percent)           4.40%  
BNAF Notes Due 2041              
Disclosure of detailed information about borrowings [line items]              
Borrowings   850,000,000          
Borrowings   850,000,000 850,000,000        
Borrowings, interest rate (as percent)           5.70%  
3.85%/5.25% notes              
Disclosure of detailed information about borrowings [line items]              
Borrowings   1,079,000,000 1,078,000,000        
Proceeds   0 0        
Repayments   0 0        
Amortization and other   0 1,000,000        
Borrowings   1,079,000,000 1,079,000,000 1,078,000,000      
5.80% notes              
Disclosure of detailed information about borrowings [line items]              
Borrowings   395,000,000 395,000,000        
Proceeds   0 0        
Repayments   0 0        
Amortization and other   0 0        
Borrowings   395,000,000 395,000,000 395,000,000      
Notional amount   $ 400,000,000 400,000,000        
Borrowings, interest rate (as percent)   580.00%          
6.35% notes              
Disclosure of detailed information about borrowings [line items]              
Borrowings   $ 593,000,000 593,000,000        
Proceeds   0 0        
Repayments   0 0        
Amortization and other   1,000,000 0        
Borrowings   594,000,000 593,000,000 593,000,000      
Notional amount   $ 600,000,000 600,000,000        
Borrowings, interest rate (as percent)   635.00%          
Other fixed rate notes              
Disclosure of detailed information about borrowings [line items]              
Borrowings   $ 1,326,000,000 1,607,000,000        
Proceeds   0 0        
Repayments   0 (279,000,000)        
Amortization and other   0 (2,000,000)        
Borrowings   1,326,000,000 1,326,000,000 1,607,000,000      
BPDAF notes due 2019              
Disclosure of detailed information about borrowings [line items]              
Borrowings   248,000,000          
Repayments     (152,000,000)        
Borrowings   248,000,000 248,000,000        
Borrowings, interest rate (as percent)             4.95%
BNAF notes due 2038              
Disclosure of detailed information about borrowings [line items]              
Borrowings   250,000,000          
Borrowings   250,000,000 250,000,000        
BPADF Notes Due 2039              
Disclosure of detailed information about borrowings [line items]              
Borrowings   850,000,000          
Borrowings   850,000,000 850,000,000        
Borrowings, interest rate (as percent)             5.95%
Pueblo Viejo Project financing              
Disclosure of detailed information about borrowings [line items]              
Borrowings   0 400,000,000        
Proceeds     0        
Repayments     (423,000,000)        
Amortization and other     23,000,000        
Borrowings     0 400,000,000      
Capital leases              
Disclosure of detailed information about borrowings [line items]              
Borrowings   46,000,000 114,000,000        
Proceeds   0 0        
Repayments   (27,000,000) (68,000,000)        
Amortization and other   0 0        
Borrowings   19,000,000 46,000,000 114,000,000      
Less: current portion   (11,000,000) (27,000,000)        
Pascua-Lama Capital Lease              
Disclosure of detailed information about borrowings [line items]              
Borrowings   13,000,000          
Borrowings   9,000,000 13,000,000        
Laguna Norte Capital Lease              
Disclosure of detailed information about borrowings [line items]              
Borrowings   27,000,000          
Borrowings   7,000,000 27,000,000        
Other debt obligations              
Disclosure of detailed information about borrowings [line items]              
Borrowings   603,000,000 609,000,000        
Proceeds   0 0        
Repayments   (3,000,000) (4,000,000)        
Amortization and other   (2,000,000) (2,000,000)        
Borrowings   598,000,000 603,000,000 609,000,000      
Less: current portion   (4,000,000) (4,000,000)        
Other debt obligations | Gross amount              
Disclosure of detailed information about borrowings [line items]              
Borrowings   5,000,000          
4.10%/5.75% notes              
Disclosure of detailed information about borrowings [line items]              
Borrowings   842,000,000 1,569,000,000        
Proceeds   0 0        
Repayments   0 731,000,000        
Amortization and other   0 (4,000,000)        
Borrowings   842,000,000 842,000,000 1,569,000,000      
Notional amount   850,000,000 850,000,000        
4.10%/5.75% notes | Gross amount              
Disclosure of detailed information about borrowings [line items]              
Borrowings $ 3,000,000,000            
Acacia Credit Facility              
Disclosure of detailed information about borrowings [line items]              
Borrowings   71,000,000 99,000,000        
Proceeds   0 0        
Repayments   (28,000,000) (28,000,000) (29,000,000) $ (14,000,000)    
Amortization and other   0 0        
Borrowings   43,000,000 71,000,000 $ 99,000,000      
Less: current portion   (28,000,000) $ (28,000,000)        
Acacia Credit Facility | Gross amount              
Disclosure of detailed information about borrowings [line items]              
Borrowings   $ 42,000,000