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CASH FLOW – OTHER ITEMS (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Cash flow arising from changes in:    
Gain on non-hedge derivatives (note 25e) $ 0 $ (6)
Stock-based compensation expense 33 80
Income from investment in equity investees (note 16) (46) (76)
Change in estimate of rehabilitation costs at closed mines (13) 55
Net inventory impairment charges (note 17) 199 21
Change in other assets and liabilities (169) (334)
Settlement of rehabilitation obligations (66) (59)
Other operating activities (62) (319)
Cash flow arising from changes in:    
Accounts receivable (9) 8
Inventory (111) (372)
Other current assets (109) (278)
Accounts payable 19 103
Other current liabilities 37 (51)
Change in working capital $ (173) $ (590)