Employee Benefits (Summary of Expenses for Bank's Defined Contribution Plans) (Details) - CAD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Apr. 30, 2026 |
Apr. 30, 2025 |
Apr. 30, 2026 |
Apr. 30, 2025 |
|
| Disclosure of defined benefit plans [line items] | ||||
| Defined Contribution Plan Expenses | $ 248 | $ 225 | $ 589 | $ 551 |
| Defined contribution pension plans [member] | ||||
| Disclosure of defined benefit plans [line items] | ||||
| Defined Contribution Plan Expenses | 92 | 85 | 203 | 191 |
| Government pension plans [member] | ||||
| Disclosure of defined benefit plans [line items] | ||||
| Defined Contribution Plan Expenses | $ 156 | $ 140 | $ 386 | $ 360 |