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IMPAIRMENT OF GOODWILL AND OTHER ASSETS Narrative (Details) |  |  |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | --- | --- | ---
Mar. 31, 2021 USD ($) | Jan. 24, 2020 USD ($) | Jan. 01, 2020 | Jun. 30, 2021 USD ($) | Mar. 31, 2021 USD ($) | Jun. 30, 2020 USD ($) | Mar. 31, 2020 USD ($) | Jun. 30, 2021 USD ($) | Jun. 30, 2020 USD ($)
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [abstract] |  |  |  |  |  |  |  |  |
Impairment reversals (charges) |  |  |  | $ (2,000,000) |  | $ (23,000,000) |  | $ 87,000,000 | $ 313,000,000
Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity |  |  |  |  |  |  |  |  | 238,000,000
Tanzania Mines [Member] |  |  |  |  |  |  |  |  |
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [abstract] |  |  |  |  |  |  |  |  |
Proportion of ownership interests held by non-controlling interests |  |  |  |  |  |  |  | 16.00% |
Non-controlling interests |  |  |  |  |  |  |  |  |
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [abstract] |  |  |  |  |  |  |  |  |
Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity |  |  |  |  |  |  |  |  | 238,000,000
Lagunas Norte [Member] |  |  |  |  |  |  |  |  |
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [abstract] |  |  |  |  |  |  |  |  |
Impairment reversals (charges) |  |  |  |  | $ 86,000,000 |  |  |  |
Porgera |  |  |  |  |  |  |  |  |
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [abstract] |  |  |  |  |  |  |  |  |
Proportion of ownership interest in joint venture |  |  |  |  |  |  |  | 95.00% |
Tanzania Mines [Member] |  |  |  |  |  |  |  |  |
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [abstract] |  |  |  |  |  |  |  |  |
Impairment reversals (charges) |  |  |  |  |  |  |  |  | $ 332,000,000
Proportion of ownership interests held by non-controlling interests |  |  | 16.00% |  |  |  | 16.00% |  |
Loss (gain) on assignment of shareholder loans |  |  |  |  |  |  | $ 167,000,000 |  |
Tanzania Mines [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [abstract] |  |  |  |  |  |  |  |  |
Net assets value multiple |  | $ 1.1 |  |  |  |  |  |  |
Weighted average cost of capital, significant unobservable inputs, assets |  | 5.40% |  |  |  |  |  |  |
Tanzania Mines [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [abstract] |  |  |  |  |  |  |  |  |
Net assets value multiple |  | $ 1.3 |  |  |  |  |  |  |
Weighted average cost of capital, significant unobservable inputs, assets |  | 6.20% |  |  |  |  |  |  |
Tanzania Mines [Member] | Short-term [Member] |  |  |  |  |  |  |  |  |
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [abstract] |  |  |  |  |  |  |  |  |
Estimated Mineral Price For Measurement Of Fair Value Less Costs Of Disposal |  | 1,350 |  |  |  |  |  |  |
Tanzania Mines [Member] | Long-term [Member] |  |  |  |  |  |  |  |  |
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [abstract] |  |  |  |  |  |  |  |  |
Estimated Mineral Price For Measurement Of Fair Value Less Costs Of Disposal |  | 1,300 |  |  |  |  |  |  |
Individual assets or cash-generating units [member] | Lagunas Norte [Member] | At fair value [member] |  |  |  |  |  |  |  |  |
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [abstract] |  |  |  |  |  |  |  |  |
Consideration paid (received) | $ (63,000,000) |  |  |  |  |  |  |  |
Individual assets or cash-generating units [member] | Porgera |  |  |  |  |  |  |  |  |
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [abstract] |  |  |  |  |  |  |  |  |
Impairment reversals (charges) |  |  |  |  |  |  |  | $ 0 |
Individual assets or cash-generating units [member] | Bulyanhulu [Member] |  |  |  |  |  |  |  |  |
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [abstract] |  |  |  |  |  |  |  |  |
Impairment reversals (charges) |  |  |  |  |  |  | 649,000,000 |  |
Recoverable amount of asset or cash-generating unit |  |  |  |  |  |  | 1,237,000,000 |  |
Individual assets or cash-generating units [member] | North Mara [Member] |  |  |  |  |  |  |  |  |
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [abstract] |  |  |  |  |  |  |  |  |
Impairment reversals (charges) |  |  |  |  |  |  | 88,000,000 |  |
Recoverable amount of asset or cash-generating unit |  |  |  |  |  |  | 967,000,000 |  |
Individual assets or cash-generating units [member] | Buzwagi [Member] |  |  |  |  |  |  |  |  |
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [abstract] |  |  |  |  |  |  |  |  |
Impairment reversals (charges) |  |  |  |  |  |  | $ 0 |  |

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