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Structured Entities - Unconsolidated Structured Entities - Additional Information (Detail) - CAD ($) $ in Millions | 12 Months Ended
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Oct. 31, 2025 | Oct. 31, 2024
Guarantee-linked notes [member] |  |
Disclosure of unconsolidated structured entities [line items] |  |
Debt securities issued | $ 1,697 | $ 1,002
Unconsolidated structured entities [member] |  |
Disclosure of unconsolidated structured entities [line items] |  |
Bank's maximum exposure to loss | 29,738 | 17,852
Unconsolidated structured entities [member] | Bank Of Nova Scotia [Member] |  |
Disclosure of unconsolidated structured entities [line items] |  |
Bank's maximum exposure to loss | 10,200 | 6,100
Unaffiliated Structured Entities [Member] |  |
Disclosure of unconsolidated structured entities [line items] |  |
Credit facilities funded by bank | $ 8,114 | $ 4,243

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- Definition The amount of instruments issued by the entity that represent indebtedness. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_55&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount that best represents the entity's maximum exposure to loss from its interests in structured entities. [Refer: Total for all unconsolidated structured entities [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2024-01-01 -Paragraph 29 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2024-en-r&anchor=para_29_c&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of financial or other support (for example, purchasing assets of, or instruments issued by, the structured entity) provided to a structured entity without having a contractual obligation to do so, including assistance in obtaining financial support. [Refer: Total for all subsidiaries [member]; Total for all unconsolidated structured entities [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2024-01-01 -Paragraph 15 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2024-en-r&anchor=para_15_a&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2024-01-01 -Paragraph 30 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2024-en-r&anchor=para_30_a&doctype=Standard -URIDate 2024-03-27 + Details
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- Details
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- Details
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- Details
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