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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, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Disclosure of operating segments [line items] |  |  |  |
Segment income | $ 1,037 | $ 880 | $ 2,241 | $ 1,929
Other revenue | 2,893 | 3,055 | 5,849 | 5,776
Other cost of sales/amortization | (1,704) | (1,900) | (3,416) | (3,676)
Exploration, evaluation and project expenses not attributable to segments | (77) | (78) | (138) | (149)
General and administrative expenses | (47) | (71) | (85) | (111)
Other income not attributable to segments | (26) | (73) | (45) | (38)
Impairment reversals (charges) | (2) | (23) | 87 | 313
Loss on currency translation | (7) | (2) | (11) | (18)
Closed mine rehabilitation | (6) | (7) | (29) | (97)
Income from equity investees | 104 | 61 | 207 | 115
Finance costs, net (includes non-segment accretion) | (91) | (82) | (178) | (186)
Gain on non-hedge derivatives | (2) | 12 | (1) | 5
Income before income taxes | 1,037 | 880 | 2,241 | 1,929
Reportable segments [member] |  |  |  |
Disclosure of operating segments [line items] |  |  |  |
Segment income | 1,147 | 1,072 | 2,325 | 1,978
Other revenue | 2,869 | 3,008 | 5,763 | 5,689
Exploration, evaluation and project expenses not attributable to segments | (18) | (23) | (32) | (38)
Other income not attributable to segments | (28) | (52) | (54) | (72)
Income before income taxes | 1,147 | 1,072 | 2,325 | 1,978
Other items not allocated to segments |  |  |  |
Disclosure of operating segments [line items] |  |  |  |
Other revenue | 24 | 47 | 86 | 87
Other cost of sales/amortization | (28) | (39) | (64) | (75)
Exploration, evaluation and project expenses not attributable to segments | (59) | (55) | (106) | (111)
General and administrative expenses | (47) | (71) | (85) | (111)
Other income not attributable to segments | (4) | (37) | (3) | 17
Impairment reversals (charges) | (2) | (23) | 87 | 313
Loss on currency translation | (7) | (2) | (11) | (18)
Closed mine rehabilitation | (6) | (7) | (29) | (97)
Income from equity investees | 104 | 61 | 207 | 115
Finance costs, net (includes non-segment accretion) | (83) | (78) | (165) | (174)
Gain on non-hedge derivatives | $ (2) | $ 12 | $ (1) | $ 5

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