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IMPAIRMENT AND REVERSAL OF NON-CURRENT ASSETS - Impairment Losses (Reversals) (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2018 | Dec. 31, 2019 | Dec. 31, 2018
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items] |  |  |
Impairment (reversals) charges |  | $ (1,423) | $ 900
Individual assets | Veladero |  |  |
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items] |  |  |
Impairment (reversals) charges |  | 0 | 30
Individual assets | Lumwana |  |  |
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items] |  |  |
Impairment (reversals) charges |  | (947) | 0
Individual assets | Pueblo Viejo |  |  |
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items] |  |  |
Impairment (reversals) charges |  | (865) | 0
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 |  | 296 | (7)
Individual assets | Cortez |  |  |
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items] |  |  |
Impairment (reversals) charges |  | 57 | 9
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 | 12 | 405
Individual assets | Golden sunlight |  |  |
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items] |  |  |
Impairment (reversals) charges |  | 9 | 0
Individual assets | Veladero |  |  |
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items] |  |  |
Impairment (reversals) charges |  | 3 | 246
Individual assets | Carlin [Member] |  |  |
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items] |  |  |
Impairment (reversals) charges |  | 2 | 5
Individual assets | Acacia exploration sites |  |  |
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items] |  |  |
Impairment (reversals) charges |  | 0 | 24
Individual assets | Other |  |  |
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items] |  |  |
Impairment (reversals) charges |  | 10 | 34
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 |  | (1,423) | 746
Goodwill |  |  |
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items] |  |  |
Impairment (reversals) charges |  | 0 | 154
Goodwill | Veladero |  |  |
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items] |  |  |
Impairment (reversals) charges |  | $ 0 | $ 154

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