XML 136 R96.htm IDEA: XBRL DOCUMENT v3.10.0.1
COST OF SALES (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Disclosure of Detailed Information About Cost of Sales [Line Items]    
Direct mining cost $ 3,481 $ 3,365
Depreciation 1,457 1,647
Royalty expense 235 244
Community relations 47 44
Cost of sales 5,220 5,300
Inventory reduction amount 199 21
Employee benefits expense 1,001 1,051
Gold[member]    
Disclosure of Detailed Information About Cost of Sales [Line Items]    
Direct mining cost 3,130 3,063
Depreciation 1,253 1,529
Royalty expense 196 206
Community relations 42 38
Cost of sales 4,621 4,836
Copper    
Disclosure of Detailed Information About Cost of Sales [Line Items]    
Direct mining cost 344 274
Depreciation 170 83
Royalty expense 39 38
Community relations 5 4
Cost of sales 558 399
Other    
Disclosure of Detailed Information About Cost of Sales [Line Items]    
Direct mining cost 7 28
Depreciation 34 35
Royalty expense 0 0
Community relations 0 2
Cost of sales $ 41 $ 65