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CASH FLOW – OTHER ITEMS (Details) - USD ($)
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Cash flow arising from changes in:    
(Gain) loss on non-hedge derivatives $ (10,000,000) $ 0
Stock-based compensation expense 87,000,000 71,000,000
Gain on warrant investments at FVPL 9,000,000 0
Income from investment in equity investees (note 16) (288,000,000) (165,000,000)
Increase in estimate of rehabilitation costs at closed mines 90,000,000 5,000,000
Net inventory impairment charges (note 17) 29,000,000 26,000,000
Gain on remeasurement of silver sale liability (104,000,000) (628,000,000)
Gains (losses) on litigation settlements 0 (216,000,000)
Change in other assets and liabilities (70,000,000) (113,000,000)
Settlement of rehabilitation obligations (106,000,000) (93,000,000)
Other operating activities (381,000,000) (1,113,000,000)
Cash flow arising from changes in:    
Accounts receivable (192,000,000) (118,000,000)
Inventory 121,000,000 9,000,000
Other current assets (133,000,000) (89,000,000)
Accounts payable 42,000,000 (108,000,000)
Other current liabilities (146,000,000) (51,000,000)
Change in working capital (308,000,000) (357,000,000)
Dividends received from investments accounted for using equity method, classified as investing activities 141,000,000 125,000,000
Cash repayments of advances and loans from related parties 79,000,000 92,000,000
Funding of equity method investments (note 16) 0 (2,000,000)
Other 0 (2,000,000)
Other investing activities 220,000,000 213,000,000
Proceeds from issue of bonds, notes and debentures 42,000,000 0
Debt extinguishment costs (15,000,000) (3,000,000)
Miscellaneous Other Inflows (Outflows) Of Cash Classified As Financing Activities 1,000,000 2,000,000
Other financing activities (note 15) $ 28,000,000 $ (1,000,000)