XML 77 R46.htm IDEA: XBRL DOCUMENT v3.21.2
COST OF SALES (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Disclosure of Detailed Information About Cost of Sales [Line Items]        
Site operating costs $ 1,081 $ 1,202 $ 2,166 $ 2,353
Depreciation expense 500 566 1,007 1,090
Royalty expense 117 127 233 222
Community relations 6 5 10 11
Cost of sales 1,704 1,900 3,416 3,676
Inventory write-down 0 1 14 18
Gold        
Disclosure of Detailed Information About Cost of Sales [Line Items]        
Site operating costs 1,016 1,121 2,036 2,201
Depreciation expense 448 498 902 972
Royalty expense 92 116 185 200
Community relations 5 5 9 10
Cost of sales 1,561 1,740 3,132 3,383
Copper        
Disclosure of Detailed Information About Cost of Sales [Line Items]        
Site operating costs 65 79 130 148
Depreciation expense 46 63 94 106
Royalty expense 25 11 48 22
Community relations 1 0 1 1
Cost of sales 137 153 273 277
Other        
Disclosure of Detailed Information About Cost of Sales [Line Items]        
Site operating costs 0 2 0 4
Depreciation expense 6 5 11 12
Royalty expense 0 0 0 0
Community relations 0 0 0 0
Cost of sales $ 6 $ 7 $ 11 $ 16