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COST OF SALES
 12 Months Ended
Dec. 31, 2020
Analysis of income and expense [abstract]  
COST OF SALES Cost of Sales
   Gold Copper
Other4
 Total
For the years ended December 31 2020 2019 2020 2019 2020 2019 2020 2019
Direct mining cost1,2,3
 $4,421  $4,274  $292  $224  $3  $6  $4,716  $4,504 
Depreciation 1,975  1,902  208  100  25  30  2,208  2,032 
Royalty expense 410  308  54  34  —  —  464  342 
Community relations 26  30  2  3  1  —  29  33 
Total $6,832  $6,514  $556  $361  $29  $36  $7,417  $6,911 
1Direct mining cost related to gold and copper includes charges to reduce the cost of inventory to net realizable value of $29 million (2019: $26 million). Refer to note 17.
2Direct mining cost related to gold includes the costs of extracting by-products and export duties paid in Argentina.
3Includes employee costs of $1,520 million (2019: $1,350 million).
4Other includes realized hedge gains and losses, as well as corporate amortization.