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PROVISIONS - Environmental Rehabilitation (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Disclosure of other provisions [line items] |  |
Provisions, noncurrent | $ 3,139 | $ 3,114
Environmental rehabilitation |  |
Disclosure of other provisions [line items] |  |
Environmental rehabilitation, beginning balance | 3,078 | 2,837
PERs acquired (divested) during the year | (6) | 425
Other increase (decrease) during period | 1 | (87)
Cash payments | (39) | (21)
Settlement gains | (3) | (1)
Accretion | 25 | 57
Environmental rehabilitation, ending balance | 3,081 | 3,078
Current provisions | (131) | (156)
Provisions, noncurrent | 2,950 | 2,922
Discontinued operations | Environmental rehabilitation |  |
Disclosure of other provisions [line items] |  |
Other increase (decrease) during period | 79 | (75)
Cash payments | (67) | (72)
Settlement gains | (3) | (3)
Accretion | $ 16 | $ 18

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