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ACCOUNTS RECEIVABLE AND OTHER CURRENT ASSETS (Details) - USD ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Accounts receivable |  |
Amounts due from concentrate sales | $ 265 | $ 68
Other receivables | 293 | 295
Accounts receivable | 558 | 363
Other current assets |  |
Value added taxes recoverable1 | 208 | 302
Prepaid expenses | 227 | 174
Other2 | 84 | 89
Other current assets | 519 | 565
Mali |  |
Disclosure of Trade Receivable and Other Current Assets [Line Items] |  |
VAT and fuel tax recoverables | 59 | 141
TANZANIA, UNITED REPUBLIC OF |  |
Disclosure of Trade Receivable and Other Current Assets [Line Items] |  |
VAT and fuel tax recoverables | 35 | 61
Zambia |  |
Disclosure of Trade Receivable and Other Current Assets [Line Items] |  |
VAT and fuel tax recoverables | 52 | 50
Settlements, tax matters | 50 |
ARGENTINA |  |
Disclosure of Trade Receivable and Other Current Assets [Line Items] |  |
VAT and fuel tax recoverables | 37 | 26
Dominican Republic |  |
Disclosure of Trade Receivable and Other Current Assets [Line Items] |  |
VAT and fuel tax recoverables | $ 11 | $ 10

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