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Non-Controlling Interests - Summary of Information About Subsidiaries with Non-controlling Interests and Non-controlling Interest Balances (Detail) - CAD ($) $ in Millions |  | 12 Months Ended |
--- | --- | --- | ---
Mar. 29, 2019 | Dec. 31, 2023 | Dec. 31, 2019 | Dec. 31, 2022
Disclosure of subsidiaries [line items] |  |  |  |
Non-controlling interests |  | $ 1,304 |  | $ 1,038
Carmen de Andacollo |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |
Percentage of ownership interests held by non-controlling interests |  | 10.00% |  |
Percentage of Voting Rights Held by Non-Controlling Interest |  | 10.00% |  |
Non-controlling interests |  | $ 18 |  | 26
Elkview Mine Limited Partnership |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |
Percentage of ownership interests held by non-controlling interests |  | 5.00% |  |
Percentage of Voting Rights Held by Non-Controlling Interest |  | 5.00% |  |
Non-controlling interests |  | $ 126 |  | 87
Compañía Minera Zafranal S.A.C. |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |
Percentage of ownership interests held by non-controlling interests |  | 20.00% |  |
Percentage of Voting Rights Held by Non-Controlling Interest |  | 20.00% |  |
Non-controlling interests |  | $ 56 |  | 51
Quebrada Blanca |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |
Percentage of ownership interests held by non-controlling interests |  | 40.00% |  |
Percentage of Voting Rights Held by Non-Controlling Interest |  | 40.00% |  |
Non-controlling interests |  | $ 1,104 |  | $ 874
Quebrada Blanca | SSM/SC |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |
Portion of additional interest acquired | 30.00% |  |  |
Quebrada Blanca | ENAMI |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |
Percentage of ownership interests held by non-controlling interests |  |  | 10.00% |

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- Definition The amount of equity in a subsidiary not attributable, directly or indirectly, to a parent. [Refer: Subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2023-01-01 -Paragraph 12 -Subparagraph f -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2023-en-r&anchor=para_12_f&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 10 -IssueDate 2023-01-01 -Paragraph 22 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=10&code=ifrs-tx-2023-en-r&anchor=para_22&doctype=Standard -URIDate 2023-03-23 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 54 -Subparagraph q -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_54_q&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The proportion of ownership interests in a subsidiary held by non-controlling interests. [Refer: Subsidiaries [member]; Non-controlling interests] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2023-01-01 -Paragraph 12 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2023-en-r&anchor=para_12_c&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The proportion of the voting rights in a subsidiary held by non-controlling interests. [Refer: Subsidiaries [member]; Non-controlling interests] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2023-01-01 -Paragraph 12 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2023-en-r&anchor=para_12_d&doctype=Standard -URIDate 2023-03-23 + Details
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