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Significant Transactions (Narrative) (Details) - CAD ($) $ in Millions | 12 Months Ended
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Oct. 31, 2025 | Oct. 31, 2024
Disclosure of detailed information about business combination [line items] |  |
Interest income | $ 87,621 | $ 93,389
Material Reconciliation [Member] |  |
Disclosure of detailed information about business combination [line items] |  |
Interest income | $ 205 | $ 242

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