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PROVISIONS - Environmental Rehabilitation (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016
Disclosure of other provisions [line items] |  |
Provisions, noncurrent | $ 3,141 | $ 2,363
Environmental rehabilitation |  |
Disclosure of other provisions [line items] |  |
Environmental rehabilitation, beginning balance | 2,246 | 1,982
Environmental rehabilitation, ending balance |  | 2,246
Provisions, noncurrent | 2,944 | 2,179
Discontinued operations | Environmental rehabilitation |  |
Disclosure of other provisions [line items] |  |
PERs divested during the year | (31) | 0
Other increase (decrease) during period | 46 | 146
Cash payments | (41) | (28)
Settlement gains | (1) | (1)
Accretion | 12 | 10
Continuing operations | Environmental rehabilitation |  |
Disclosure of other provisions [line items] |  |
Environmental rehabilitation, beginning balance | 2,246 |
Other increase (decrease) during period | 836 | 134
Cash payments | (18) | (34)
Settlement gains | (1) | (3)
Accretion | 48 | 40
Environmental rehabilitation, ending balance | 3,096 | 2,246
Current provisions | (152) | (67)
Provisions, noncurrent | $ 2,944 | $ 2,179

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