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INVENTORIES - Ore in Stockpiles and on Leach Pads (Details) - USD ($) $ in Millions | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Disclosure of operating segments [line items] |  |
Ore in Stockpiles | $ 2,257 | $ 2,227
Ore on Leach pads | 405 | 405
Gold[member] |  |
Disclosure of operating segments [line items] |  |
Ore in Stockpiles | 2,106 | 2,125
Ore on Leach pads | 405 | 405
Gold[member] | Barrick Nevada |  |
Disclosure of operating segments [line items] |  |
Ore in Stockpiles | 1,083 | 1,040
Ore on Leach pads | 81 | 105
Gold[member] | Pueblo Viejo |  |
Disclosure of operating segments [line items] |  |
Ore in Stockpiles | 603 | 538
Gold[member] | Porgera |  |
Disclosure of operating segments [line items] |  |
Ore in Stockpiles | 37 | 55
Gold[member] | Kalgoorlie |  |
Disclosure of operating segments [line items] |  |
Ore in Stockpiles | 125 | 138
Gold[member] | Lagunas Norte |  |
Disclosure of operating segments [line items] |  |
Ore in Stockpiles | 49 | 147
Ore on Leach pads | 168 | 143
Gold[member] | Buzwagi |  |
Disclosure of operating segments [line items] |  |
Ore in Stockpiles | 83 | 109
Gold[member] | North Mara |  |
Disclosure of operating segments [line items] |  |
Ore in Stockpiles | 70 | 47
Gold[member] | Veladero |  |
Disclosure of operating segments [line items] |  |
Ore in Stockpiles | 39 | 22
Ore on Leach pads | 138 | 145
Gold[member] | Turquoise Ridge |  |
Disclosure of operating segments [line items] |  |
Ore in Stockpiles | 13 | 26
Gold[member] | Other |  |
Disclosure of operating segments [line items] |  |
Ore in Stockpiles | 4 | 3
Gold[member] | Pierina |  |
Disclosure of operating segments [line items] |  |
Ore on Leach pads | 18 | 12
Copper |  |
Disclosure of operating segments [line items] |  |
Ore in Stockpiles | 151 | 102
Ore on Leach pads | 0 | 0
Copper | Lumwana |  |
Disclosure of operating segments [line items] |  |
Ore in Stockpiles | $ 151 | $ 102

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