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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