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CASH FLOW – OTHER ITEMS (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Cash flow arising from changes in:    
Gain on non-hedge derivatives (note 25e) $ (6) $ (12)
Stock-based compensation expense 80 82
Income from investment in equity investees (note 16) (76) (20)
Change in estimate of rehabilitation costs at closed mines 55 130
Net inventory impairment charges (note 17) 21 68
Change in other assets and liabilities (196) (249)
Settlement of rehabilitation obligations (59) (62)
Other operating activities (181) (63)
Cash flow arising from changes in:    
Accounts receivable 8 (5)
Inventory (372) (190)
Other current assets (278) (72)
Accounts payable (35) (190)
Other current liabilities (51) 29
Change in working capital $ (728) $ (428)