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CASH FLOW – OTHER ITEMS
 12 Months Ended
Dec. 31, 2018
Cash Flow Statement [Abstract]  
CASH FLOW – OTHER ITEMS
CASH FLOW – OTHER ITEMS

Operating Cash Flows - Other Items
For the years ended December 31
2018

2017

Adjustments for non-cash income statement items:
 
 
Gain on non-hedge derivatives (note 25e)

$—


($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
)