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REVENUE - Revenue by Type (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Disclosure of Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 2,063 | $ 1,712 | $ 4,156 | $ 3,502
Provisional pricing adjustments | (8) | (6) | 14 | (29)
Gold |  |  |  |
Disclosure of Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 1,937 | 1,562 | 3,843 | 3,205
Provisional pricing adjustments | 1 | (1) | 1 | (1)
Spot market sales |  |  |  |
Disclosure of Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 1,928 | 1,556 | 3,822 | 3,196
Concentrate sales |  |  |  |
Disclosure of Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 8 | 7 | 20 | 10
Copper |  |  |  |
Disclosure of Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 103 | 112 | 266 | 223
Provisional pricing adjustments | (9) | (5) | 13 | (28)
Copper concentrate [Member] |  |  |  |
Disclosure of Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 112 | 117 | 253 | 251
Other |  |  |  |
Disclosure of Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 23 | $ 38 | $ 47 | $ 74

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