REVENUE - Revenue by Type (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016
Disclosure of Disaggregation of Revenue [Line Items]
Revenue	$ 8,374	$ 8,558
Sales tax	0	2
Gold
Disclosure of Disaggregation of Revenue [Line Items]
Revenue	7,631	7,908
Spot market sales
Disclosure of Disaggregation of Revenue [Line Items]
Revenue	7,566	7,650
Concentrate sales
Disclosure of Disaggregation of Revenue [Line Items]
Revenue	65	258
Copper
Disclosure of Disaggregation of Revenue [Line Items]
Revenue	608	466
Other
Disclosure of Disaggregation of Revenue [Line Items]
Revenue	$ 135	$ 184

The income arising in the course of an entity's ordinary activities. Income is increases in economic benefits during the accounting period in the form of inflows or enhancements of assets or decreases of liabilities that result in an increase in equity, other than those relating to contributions from equity participants.

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+ Details