XML 177 R109.htm IDEA: XBRL DOCUMENT v3.8.0.1
INVENTORIES - Inventories By Type (Details) - USD ($)
$ in Millions
Dec. 31, 2017
Dec. 31, 2016
Disclosure of Detailed Information About Inventory [Line Items]    
Ore in Stockpiles $ 2,227 $ 2,139
Ore on Leach pads 405 406
Current inventories 1,890 1,930
Gold    
Disclosure of Detailed Information About Inventory [Line Items]    
Ore in Stockpiles 2,125 2,067
Ore on Leach pads 405 406
Mine operating supplies 515 585
Work in process 174 219
Finished products 168 50
Inventories 3,387 3,327
Non-current ore in stockpiles (1,681) (1,536)
Current inventories 1,706 1,791
Copper    
Disclosure of Detailed Information About Inventory [Line Items]    
Ore in Stockpiles 102 72
Ore on Leach pads 0 0
Mine operating supplies 79 62
Work in process 0 0
Finished products 3 5
Inventories 184 139
Non-current ore in stockpiles 0 0
Current inventories $ 184 $ 139