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INVENTORIES - Inventory Impairment Charges (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019
Disclosure of operating segments [line items] |  |
Inventory impairment charges | $ 29 | $ 26
Cortez |  |
Disclosure of operating segments [line items] |  |
Inventory impairment charges | 17 | 4
Phoenix |  |
Disclosure of operating segments [line items] |  |
Inventory impairment charges | 10 | 0
Carlin |  |
Disclosure of operating segments [line items] |  |
Inventory impairment charges | 2 | 6
Pierina |  |
Disclosure of operating segments [line items] |  |
Inventory impairment charges | 0 | 12
Golden Sunlight |  |
Disclosure of operating segments [line items] |  |
Inventory impairment charges | $ 0 | $ 4

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- Definition The amount of expense recognised related to the write-down of inventories to net realisable value. [Refer: Inventories] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 2 -IssueDate 2019-01-01 -Paragraph 36 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=2&code=ifrs-tx-2019-en-r&anchor=para_36_e&doctype=Standard -URIDate 2019-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 98 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_98_a&doctype=Standard -URIDate 2019-03-27 + Details
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