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INVENTORIES - Inventories By Type (Details) - USD ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019
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Disclosure of Detailed Information About Inventory [Line Items] |  |
Ore in stockpiles | $ 2,856 | $ 2,833
Ore on leach pads | 591 | 623
Current inventories | 1,878 | 2,289
Gold[member] |  |
Disclosure of Detailed Information About Inventory [Line Items] |  |
Ore in stockpiles | 2,742 | 2,678
Ore on leach pads | 591 | 623
Mine operating supplies | 615 | 617
Work in process | 117 | 141
Finished products | 114 | 220
Inventories | 4,179 | 4,279
Non-current ore in stockpiles and on leach pads | 2,452 | 2,300
Current inventories | 1,727 | 1,979
Copper |  |
Disclosure of Detailed Information About Inventory [Line Items] |  |
Ore in stockpiles | 114 | 155
Ore on leach pads | 0 | 0
Mine operating supplies | 54 | 52
Work in process | 0 | 0
Finished products | 97 | 103
Inventories | 265 | 310
Non-current ore in stockpiles and on leach pads | 114 | 0
Current inventories | $ 151 | $ 310

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- Definition A classification of current inventory representing the amount of goods that have completed the production process and are held for sale in the ordinary course of business. [Refer: Inventories] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 2 -IssueDate 2019-01-01 -Paragraph 37 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=2&code=ifrs-tx-2019-en-r&anchor=para_37&doctype=Standard -URIDate 2019-03-27 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 78 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_78_c&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The amount of assets: (a) held for sale in the ordinary course of business; (b) in the process of production for such sale; or (c) in the form of materials or supplies to be consumed in the production process or in the rendering of services. Inventories encompass goods purchased and held for resale including, for example, merchandise purchased by a retailer and held for resale, or land and other property held for resale. Inventories also encompass finished goods produced, or work in progress being produced, by the entity and include materials and supplies awaiting use in the production process. [Refer: Current finished goods; Current merchandise; Current work in progress; Land] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 54 -Subparagraph g -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_54_g&doctype=Standard -URIDate 2019-03-27 + Details
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