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INCOME TAX EXPENSE Narrative (Details) - USD ($) $ in Millions |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Jul. 01, 2021 | Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 15, 2021 | Jun. 30, 2020
Disclosure Of Major Components Of Tax Expense (Income) [Line Items] |  |  |  |  |  |
Income tax expense (recovery) |  | $ 343 | $ 258 | $ 717 |  | $ 644
Average effective tax rate |  |  |  | 32.00% |  |
Adjusted effective tax rate |  |  |  | 27.00% |  |
Net currency translation losses on deferred tax balances |  |  |  | $ (26) |  | 1
Nevada Gold Mines [Member] |  |  |  |  |  |
Disclosure Of Major Components Of Tax Expense (Income) [Line Items] |  |  |  |  |  |
Proportion of ownership interests held by non-controlling interests |  |  |  | 61.50% |  |
UNITED STATES |  |  |  |  |  |
Disclosure Of Major Components Of Tax Expense (Income) [Line Items] |  |  |  |  |  |
Dividends withholdings taxes |  |  |  |  |  | $ 13
Argentina |  |  |  |  |  |
Disclosure Of Major Components Of Tax Expense (Income) [Line Items] |  |  |  |  |  |
Applicable tax rate |  |  |  | 35.00% | 30.00% |
Previously proposed applicable tax rate |  |  |  | 25.00% |  |
Dividends withholdings tax rate |  |  |  | 7.00% | 13.00% |
Deferred tax expense (income) relating to tax rate changes or imposition of new taxes |  | $ 72 |  |  |  |
Argentina | UNITED STATES |  |  |  |  |  |
Disclosure Of Major Components Of Tax Expense (Income) [Line Items] |  |  |  |  |  |
Dividends withholdings taxes |  |  |  | $ 16 |  |
NEVADA | Maximum [Member] |  |  |  |  |  |
Disclosure Of Major Components Of Tax Expense (Income) [Line Items] |  |  |  |  |  |
Mining excise tax rate | 1.10% |  |  |  |  |

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