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CASH FLOW – OTHER ITEMS CASH FLOW - OTHER ITEMS (Tables)
 6 Months Ended
Jun. 30, 2020
Cash Flow Statement [Abstract]  
Cash flow - other items
Operating Cash Flows – Other Items For the three months ended June 30 For the six months ended June 30
   2020 2019 2020 2019
Adjustments for non-cash income statement items:
Gain on non-hedge derivatives ($12)   $—    ($5)   ($1)  
Share-based compensation expense 33    26    50    38   
Income from investment in equity investees (61)   (50)   (115)   (78)  
Change in estimate of rehabilitation costs at closed mines 7    16    97    41   
Net inventory impairment charges 1    12    18    16   
Change in other assets and liabilities 21    50    17    28   
Settlement of rehabilitation obligations (24)   (16)   (44)   (30)  
Other operating activities ($35)   $38    $18    $14   
Cash flow arising from changes in:
Accounts receivable ($40)   ($44)   ($48)   ($33)  
Inventory 59    22    (25)   12   
Other current assets (33)   (9)   (139)   (94)  
Accounts payable 6    (37)   (73)   (160)  
Other current liabilities (1)   (14)   (56)   (55)  
Change in working capital ($9)   ($82)   ($341)   ($330)  
Investing Cash Flows – Other Items For the three months ended June 30 For the six months ended June 30
   2020 2019 2020 2019
Dividends received from equity method investments $29    $17    $54    $32   
Shareholder loan repayments from equity method investments 1    —    1    30   
Other net investing activities $30    $17    $55    $62