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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)

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