Deposits - Summary of Contractual Maturities of Term Deposit Liabilities (Parenthetical) (Detail) - CAD ($) $ in Billions |
Apr. 30, 2026 |
Oct. 31, 2025 |
|---|---|---|
| Deposits from customers [abstract] | ||
| Aggregate amount of term deposits in denominations of one hundred thousand dollars or more | $ 779 | $ 704 |