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SIGNIFICANT ACCOUNTING POLICIES - Stock-Based Compensation (Details) | 12 Months Ended
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Dec. 31, 2020 USD ($)
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Barrick Share Purchase Plan, Employer Matching Contribution, Percent Match | 100.00%
Stock options |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Vesting period | 4 years
RSUs |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Vesting period | 3 years
DSUs |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Minimum required annual retainer (as percent) | 63.60%
BSPP | Minimum |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Annual contributions per employee (as percent) | 1.00%
BSPP | Maximum |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Annual contributions per employee (as percent) | 10.00%
United States of America, Dollars | BSPP |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Maximum employer contribution | $ 4,000
Canada, Dollars | BSPP |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Maximum employer contribution | $ 5,000

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