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IMPAIRMENT AND REVERSAL OF NON-CURRENT ASSETS - Narrative (Details)
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 09, 2017
USD ($)
Mar. 28, 2017
USD ($)
Jun. 30, 2018
USD ($)
Rate
Dec. 31, 2017
USD ($)
Mar. 31, 2017
USD ($)
Dec. 31, 2017
Jun. 30, 2017
Dec. 31, 2018
USD ($)
$ / pound
$ / ounce
Rate
Dec. 31, 2017
USD ($)
Dec. 31, 2015
USD ($)
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]                    
Impairment (reversals) charges               $ 900,000,000 $ (212,000,000)  
Estimated change in WACC (as percent)               1.00%    
Cerro Casale                    
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]                    
Impairment loss (reversal of loss)         $ (1,120,000,000)          
Implied fair value from consideration received in deconsolidation   $ 1,200,000,000                
Non-current assets                    
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]                    
Impairment (reversals) charges               $ 746,000,000    
Goodwill                    
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]                    
Impairment (reversals) charges               154,000,000 0  
Bulyanhulu | Individual assets                    
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]                    
Impairment (reversals) charges               $ 0 740,000,000  
Veladero[Member]                    
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]                    
Duty on export | Rate               12.00%    
Capped price per USD export               $ 4.00    
Veladero[Member] | Individual assets                    
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]                    
Impairment (reversals) charges               246,000,000 0  
Gains (losses) on subsequent increase in fair value less costs to sell not in excess of recognised cumulative impairment loss or write-down to fair value less costs to sell               674,000,000    
Veladero[Member] | Goodwill                    
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]                    
Impairment (reversals) charges               $ 154,000,000 0  
Percentage of entity's revenue | Rate               1.50%    
Lagunas Norte | Individual assets                    
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]                    
Discount rate used in current measurement of fair value less costs of disposal | Rate               3.80%    
Impairment (reversals) charges               $ 405,000,000 3,000,000  
Gains (losses) on subsequent increase in fair value less costs to sell not in excess of recognised cumulative impairment loss or write-down to fair value less costs to sell               150,000,000    
Estimated gold price               1,200    
Lagunas Norte | Inventories [member]                    
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]                    
Impairment (reversals) charges               166,000,000    
Estimated gold price               1,250    
Pascua-Lama | Individual assets                    
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]                    
Impairment (reversals) charges               (7,000,000) 407,000,000  
Pascua-Lama | Non-current assets | Individual assets                    
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]                    
Impairment (reversals) charges       $ (429,000,000)            
Recoverable amount               850,000,000    
Lumwana [Member] | Individual assets                    
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]                    
Impairment (reversals) charges               $ 0 $ (259,000,000)  
Copper                    
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]                    
Estimated change in mineral price (gold, in dollars per ounce; copper, in dollars per pound) | $ / pound               0.25    
Gold[member]                    
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]                    
Estimated change in mineral price (gold, in dollars per ounce; copper, in dollars per pound) | $ / ounce               100    
Estimated change in WACC (as percent)               1.00%    
Gold[member] | Veladero                    
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]                    
Estimated change in mineral price (gold, in dollars per ounce; copper, in dollars per pound) | $ / ounce               100    
Lumwana [Member]                    
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]                    
Change in royalty rate | Rate               1.50%    
Duty on export | Rate               5.00%    
Royalty tax rate | Rate               10.00%    
Lumwana [Member] | Individual assets                    
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]                    
Impairment (reversals) charges       (259,000,000)            
Recoverable amount               $ 747,000,000    
Acacia Mining PLC                    
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]                    
Discount rate used in current measurement of fair value less costs of disposal | Rate               11.00%    
Proportion of ownership interest in subsidiary               63.90%    
Acacia Mining PLC | Bulyanhulu | Non-current assets                    
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]                    
Impairment (reversals) charges       $ (740,000,000)       $ 0    
Recoverable amount               $ 600,000,000    
Recoverable amount of asset or cash generating unit, percent of asset basis               100.00%    
Pueblo Viejo                    
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]                    
Proportion of ownership interest in subsidiary               60.00%    
Cerro Casale                    
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]                    
Proportion of ownership interest sold 25.00% 25.00%           25.00%    
Proportion of ownership in joint operation 50.00%             50.00%    
Implied fair value from consideration received in deconsolidation $ 1,200,000,000                  
Proportion of ownership interest in subsidiary 50.00%                  
Minimum | Gold[member]                    
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]                    
Discount rate used in current measurement of fair value less costs of disposal       3.00%   3.00%   3.00% 3.00%  
Maximum | Gold[member]                    
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]                    
Discount rate used in current measurement of fair value less costs of disposal       6.00%   6.00%   11.00% 6.00%  
$100 Decrease in Gold Price | Gold[member]                    
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]                    
Impairment (reversals) charges               $ (139,000)    
$100 Decrease in Gold Price | Gold[member] | Veladero                    
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]                    
Impairment (reversals) charges               186,000,000    
$100 Decrease in Gold Price | Acacia Mining PLC                    
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]                    
Impairment (reversals) charges               98    
$100 Decrease in Gold Price | Pueblo Viejo | Gold[member]                    
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]                    
Impairment (reversals) charges               (791,000)    
$100 Increase in Gold Price | Gold[member] | Veladero                    
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]                    
Impairment (reversals) charges               $ (184,000,000)    
$100 Increase in Gold Price | Acacia Mining PLC                    
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]                    
Estimated change in WACC (as percent) | Rate               1.00%    
$100 Increase in Gold Price | Pueblo Viejo | Gold[member]                    
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]                    
Impairment (reversals) charges               $ 607,000    
$0.25 decrease in copper [Member] | Lumwana [Member] | Copper                    
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]                    
Impairment (reversals) charges               426,000,000    
Cash-generating units | Bulyanhulu                    
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]                    
Carrying Value               588,000,000    
Cash-generating units | Lumwana [Member]                    
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]                    
Carrying Value               735,000,000    
Cash-generating units | Lagunas Norte                    
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]                    
Carrying Value               0    
Cash-generating units | Pueblo Viejo                    
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]                    
Carrying Value               2,863,000,000    
Tax contingent liability | Tanzanian Revenue Authority Assessment | Acacia Mining PLC                    
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]                    
Royalty tax rate           4.00% 6.00%      
Clearing fee on minerals exported           1.00%        
OreCorp [Member]                    
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]                    
Impairment (reversals) charges     $ 24              
Recoverable amount               $ 10    
Proportion of ownership interest sold | Rate               51.00%    
Future consideration to be received               $ 7    
Net smelter royalty capped               $ 15    
Proportion of ownership in joint operation | Rate               49.00%    
Consideration paid (received)               $ 3    
Kabanga [Member]                    
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]                    
Impairment (reversals) charges     $ 30,000,000         (30,000,000)    
Proportion of ownership interest in associate | Rate     50.00%              
One percent decrease in WACC [Member] | Gold[member] | Veladero | Non-current assets                    
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]                    
Impairment (reversals) charges               42,000,000    
One percent decrease in WACC [Member] | Pueblo Viejo | Gold[member] | Non-current assets                    
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]                    
Impairment (reversals) charges               $ 540,000,000   $ 0
One percent increase in WACC [Member] | Veladero[Member]                    
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]                    
Estimated change in WACC (as percent)               1.00%