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REVENUE (Tables)
 12 Months Ended
Dec. 31, 2017
Revenue [abstract]  
Revenue
For the years ended December 31
2017

2016

Gold bullion sales1
 
 
Spot market sales

$7,566


$7,650

Concentrate sales
65

258

 

$7,631


$7,908

Copper concentrate sales1

$608


$466

Other sales2

$135


$184

Total

$8,374


$8,558

1 
Revenues include amounts transferred from OCI to earnings for commodity cash flow hedges (see note 25d). Revenue is presented net of direct sales taxes of $nil (2016: $2 million).
2 
Revenues include the sale of by-products from our gold and copper mines and energy sales to third parties from the Monte Rio power plant at our Pueblo Viejo mine up until its disposition on August 18, 2016.
Disclosure of provisionally prices sales
Our exposure at December 31, 2017 to the impact of movements in market commodity prices for provisionally priced sales is set out in the following table:
  
Volumes subject to final pricing
Copper (millions)
Gold (000s)
 
Impact on net income before taxation of 10% movement in market price US$
 
As at December 31
2017

2016

2017

2016

Copper pounds
40

44


$13


$11

Gold ounces
—

13

—

2