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IMPAIRMENT AND REVERSAL OF NON-CURRENT ASSETS - Impairment Losses (Reversals) (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2017 | Dec. 31, 2018 | Dec. 31, 2017
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items] |  |  |
Impairment (reversals) charges |  | $ 900 | $ (212)
Individual assets | Bulyanhulu |  |  |
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items] |  |  |
Impairment (reversals) charges |  | 0 | 740
Individual assets | Veladero |  |  |
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items] |  |  |
Impairment (reversals) charges |  | 30 | 0
Individual assets | Lumwana [Member] |  |  |
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items] |  |  |
Impairment (reversals) charges |  | 0 | (259)
Individual assets | Pascua-Lama |  |  |
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items] |  |  |
Impairment (reversals) charges |  | (7) | 407
Individual assets | Cerro Casale |  |  |
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items] |  |  |
Impairment (reversals) charges |  | 0 | (1,120)
Individual assets | Veladero |  |  |
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items] |  |  |
Impairment (reversals) charges |  | 246 | 0
Individual assets | Lagunas Norte |  |  |
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items] |  |  |
Impairment (reversals) charges |  | 405 | 3
Individual assets | Barrick Nevada [Member] |  |  |
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items] |  |  |
Impairment (reversals) charges |  | 14 | 0
Individual assets | Exploration sites |  |  |
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items] |  |  |
Impairment (reversals) charges |  | 24 | 12
Individual assets | Other |  |  |
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items] |  |  |
Impairment (reversals) charges |  | 34 | 5
Impairment (reversals) of long lived assets |  |  |
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items] |  |  |
Impairment (reversals) charges |  | 746 |
Impairment (reversals) of long lived assets | Individual assets | Pascua-Lama |  |  |
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items] |  |  |
Impairment (reversals) charges | $ (429) |  |
Goodwill |  |  |
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items] |  |  |
Impairment (reversals) charges |  | 154 | 0
Goodwill | Veladero |  |  |
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items] |  |  |
Impairment (reversals) charges |  | $ 154 | $ 0

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