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ACCOUNTS RECEIVABLE AND OTHER CURRENT ASSETS
 12 Months Ended
Dec. 31, 2020
Subclassifications of assets, liabilities and equities [abstract]  
ACCOUNTS RECEIVABLE AND OTHER CURRENT ASSETS Accounts Receivable and Other Current Assets
As at December 31, 2020 As at December 31, 2019
Accounts receivable
   Amounts due from concentrate sales $265  $68 
   Other receivables 293  295 
  $558  $363 
Other current assets
   Value added taxes recoverable1
 208  302 
   Prepaid expenses 227  174 
   Other2
 84  89 
  $519  $565 
1Primarily includes VAT and fuel tax recoverables of $59 million in Mali, $35 million in Tanzania, $52 million in Zambia, $37 million in Argentina, and $11 million in the Dominican Republic (Dec. 31, 2019: $141 million, $61 million, $50 million, $26 million, and $10 million, respectively).
2Balance includes $50 million asset reflecting the final settlement of Zambian tax matters.