XML 42 R22.htm IDEA: XBRL DOCUMENT v3.10.0.1
CASH FLOW – OTHER ITEMS
 6 Months Ended
Jun. 30, 2018
Cash Flow Statement [Abstract]  
CASH FLOW – OTHER ITEMS
CASH FLOW – OTHER ITEMS
Operating Cash Flows – Other Items
For the three months ended June 30
 
For the six months ended June 30
 
  
2018

2017

2018

2017

Adjustments for non-cash income statement items:
 
 
 
 
(Gain) loss on non-hedge derivatives

($1
)

$2


($3
)

($2
)
Stock-based compensation expense
8

6

10

31

Income from investment in equity investees
(10
)
(14
)
(26
)
(25
)
Change in estimate of rehabilitation costs at closed mines
9

(3
)
—

5

Net inventory impairment charges
2

3

5

6

Change in other assets and liabilities
65

(1
)
39

(97
)
Settlement of rehabilitation obligations
(16
)
(14
)
(32
)
(23
)
Other operating activities

$57


($21
)

($7
)

($105
)
Cash flow arising from changes in:
 
 
 
 
Accounts receivable

($21
)

$42


$45


$58

Inventory
(72
)
(154
)
(148
)
(231
)
Other current assets
(15
)
(50
)
(77
)
(94
)
Accounts payable
(98
)
(3
)
(204
)
(54
)
Other current liabilities
12

(17
)
14

(57
)
Change in working capital

($194
)

($182
)

($370
)

($378
)