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QB2 Advances from SMM/SC - Summary of Debt Continuity (Details) $ in Millions, $ in Millions | 12 Months Ended
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Dec. 31, 2023 USD ($) | Dec. 31, 2023 CAD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2022 CAD ($)
Disclosure of detailed information about borrowings [line items] |  |  |  |
Borrowings at beginning of period | $ 5,292 | $ 7,167 | $ 5,816 | $ 7,374
Non-cash changes |  |  |  |
Finance fees, discount amortization and other | 8 | 11 | 12 | 15
Changes in foreign exchange rates | 0 | (164) | 0 | 474
Borrowings at end of period | 4,940 | 6,534 | 5,292 | 7,167
SSM/SC | Quebrada Blanca Phase 2 project facility |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Borrowings at beginning of period | 1,683 | 2,279 | 997 | 1,263
Cash flows |  |  |  |
Advances | 960 | 1,292 | 685 | 899
Non-cash changes |  |  |  |
Finance fees, discount amortization and other | 1 | 1 | 1 | 1
Changes in foreign exchange rates | 0 | (75) | 0 | 116
Borrowings at end of period | $ 2,644 | $ 3,497 | $ 1,683 | $ 2,279

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