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FINANCIAL INSTRUMENTS - Debt Interest Costs (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Jan. 31, 2013
Disclosure of detailed information about borrowings [line items] |  |  |
Interest cost | $ 511 | $ 609 |
Deposits on Pascua-Lama silver sale agreement (note 29) |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Interest cost | $ 66 | $ 63 |
Effective rate (as percent) | 8.37% | 8.37% |
Deposits on Pueblo Viejo gold and silver streaming agreement (note 29) |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Interest cost | $ 35 | $ 37 |
Effective rate (as percent) | 6.14% | 6.34% |
4.4%/5.7% notes |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Interest cost | $ 77 | $ 104 |
Effective rate (as percent) | 5.23% | 5.09% |
3.85%/5.25% notes |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Interest cost | $ 53 | $ 53 |
Effective rate (as percent) | 4.87% | 4.87% |
5.80% notes |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Interest cost | $ 23 | $ 23 |
Effective rate (as percent) | 5.85% | 5.85% |
5.75%/6.35% notes |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Interest cost | $ 38 | $ 38 |
Effective rate (as percent) | 6.41% | 6.41% |
Other fixed rate notes |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Interest cost | $ 93 | $ 128 |
Effective rate (as percent) | 6.38% | 6.75% |
Pueblo Viejo Project financing |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Interest cost | $ 14 | $ 33 |
Effective rate (as percent) | 7.04% | 6.23% |
Capital leases |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Interest cost | $ 3 | $ 5 |
Effective rate (as percent) | 3.60% | 4.02% |
Other debt obligations |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Interest cost | $ 31 | $ 36 |
Effective rate (as percent) | 6.55% | 6.09% |
4.10%/5.75% notes |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Interest cost | $ 72 | $ 82 |
Effective rate (as percent) | 5.12% | 4.98% |
Acacia Credit Facility |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Interest cost | $ 6 | $ 7 |
Effective rate (as percent) | 3.59% | 3.59% | 3.60%

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