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v3.20.1

CRITICAL JUDGMENTS, ESTIMATES, ASSUMPTIONS AND RISKS (Details) | 12 Months Ended
--- | ---
Dec. 31, 2019 USD ($) $ / ounce | Dec. 31, 2018 USD ($)
Disclosure of Detailed Information About Accounting Judgments and Estimates [Line Items] |  |
Gain on remeasurement of silver sale liability | $ (628,000,000) | $ 0
Miscellaneous other operating income | 17,000,000 | 18,000,000
Other income | 3,226,000,000 | 132,000,000
Other current assets | 565,000,000 | 307,000,000
Pascua-Lama | Argentina |  |
Disclosure of Detailed Information About Accounting Judgments and Estimates [Line Items] |  |
Amounts received from VAT refunds | 424,000,000 | 443,000,000
Revenue, performance obligation | 3,538,000,000 |
Pascua-Lama | Zambia |  |
Disclosure of Detailed Information About Accounting Judgments and Estimates [Line Items] |  |
Value added tax receivables | $ 72,000,000 | $ 112,000,000
Measured, Indicated and Inferred Gold Resources |  |
Disclosure of Detailed Information About Accounting Judgments and Estimates [Line Items] |  |
Gold price (in dollars per ounce) | $ / ounce | 1,500 |
Silver | Lagunas Norte, Pierina and Veladero |  |
Disclosure of Detailed Information About Accounting Judgments and Estimates [Line Items] |  |
Contract liabilities | $ 253,000,000 |
Silver | Lagunas Norte, Pierina and Veladero | Silver Wheaton Corp. |  |
Disclosure of Detailed Information About Accounting Judgments and Estimates [Line Items] |  |
Goods deliverable under contract (as percent) | 100.00% |
Silver | Pascua-Lama | Silver Wheaton Corp. |  |
Disclosure of Detailed Information About Accounting Judgments and Estimates [Line Items] |  |
Goods deliverable under contract (as percent) | 25.00% |
Long-term | Gold [Member] |  |
Disclosure of Detailed Information About Accounting Judgments and Estimates [Line Items] |  |
Gold price (in dollars per ounce) | $ / ounce | 1,200 |
Pueblo Viejo |  |
Disclosure of Detailed Information About Accounting Judgments and Estimates [Line Items] |  |
Proportion of ownership interest in subsidiary | 60.00% |
Lumwana mine | Zambia |  |
Disclosure of Detailed Information About Accounting Judgments and Estimates [Line Items] |  |
Other current assets | $ 50,000,000 |
Change in Timing or Quantity of Ounces to be Delivered Under Streaming Agreement [Member] |  |
Disclosure of Detailed Information About Accounting Judgments and Estimates [Line Items] |  |
Contract liabilities | $ 22 |

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