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SEGMENT INFORMATION - Reconciliation of Segment Income to Loss from Continuing Operations Before Income Taxes (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Disclosure of operating segments [line items]        
Profit (loss) before tax $ 880 $ 264 $ 1,929 $ 571
Other cost of sales/amortization (1,900) (1,545) (3,676) (3,035)
Exploration, evaluation and project expenses not attributable to segments (78) (98) (149) (172)
General and administrative expenses (71) (59) (111) (113)
Other income (expense) not attributable to segments (73) (7) (38) (33)
Impairment loss (impairment gain and reversal of impairment loss) determined in accordance with IFRS 9 23 12 (313) 15
Gain (loss) on currency translation (2) 6 (18) (16)
Closed mine rehabilitation (7) (16) (97) (41)
Income from equity investees 61 50 115 78
Finance costs, net (includes non-segment accretion) (82) (118) (186) (238)
Gain on non-hedge derivatives 12 0 5 1
Income before income taxes 880 264 1,929 571
Profit (loss), attributable to non-controlling interests 265 29 528 58
Nevada Gold Mines [Member]        
Disclosure of operating segments [line items]        
Revenue, attributable to non-controlling interests 577   1,113  
Cost of sales, attributable to non-controlling interests 342   672  
Profit (loss), attributable to non-controlling interests 224   424  
Tanzanian Mines        
Disclosure of operating segments [line items]        
Impairment loss (impairment gain and reversal of impairment loss) determined in accordance with IFRS 9     (332)  
Revenue, attributable to non-controlling interests 52 68 83 118
Cost of sales, attributable to non-controlling interests 32 48 54 90
Profit (loss), attributable to non-controlling interests 18 15 26 19
Consolidated total [Member]        
Disclosure of operating segments [line items]        
Profit (loss) before tax 1,085 485 1,999 1,053
Exploration, evaluation and project expenses not attributable to segments (23) (15) (39) (28)
Other income (expense) not attributable to segments (60) (27) (84) (58)
Income before income taxes 1,085 485 1,999 1,053
Reconciling items        
Disclosure of operating segments [line items]        
Other cost of sales/amortization (13) (9) (22) (18)
Exploration, evaluation and project expenses not attributable to segments (55) (83) (110) (144)
General and administrative expenses (71) (59) (111) (113)
Other income (expense) not attributable to segments (31) 7 23 (2)
Impairment loss (impairment gain and reversal of impairment loss) determined in accordance with IFRS 9 23 12 (313) 15
Gain (loss) on currency translation (2) 6 (18) (16)
Closed mine rehabilitation (7) (16) (97) (41)
Income from equity investees 61 50 115 78
Finance costs, net (includes non-segment accretion) (76) (105) (168) (212)
Gain on non-hedge derivatives 12 0 5 1
Reconciling items | Nevada Gold Mines [Member]        
Disclosure of operating segments [line items]        
Revenue, attributable to non-controlling interests 0 0 0 0
Cost of sales, attributable to non-controlling interests 2 0 2 0
Profit (loss), attributable to non-controlling interests (9) 0 (9) 0
Reconciling items | Tanzanian Mines        
Disclosure of operating segments [line items]        
Revenue, attributable to non-controlling interests 0 0 0 0
Cost of sales, attributable to non-controlling interests 0 0 0 0
Profit (loss), attributable to non-controlling interests $ 0 $ (3) $ 0 $ (6)