Loans, Impaired Loans, and Allowance for Credit Losses (Schedule of Change from Base to Probability-Weighted ECL) (Details) - CAD ($) $ in Millions |
Apr. 30, 2024 |
Oct. 31, 2023 |
|---|---|---|
| Disclosure of detailed information about financial instruments [line items] | ||
| Difference - in amount | $ 536 | $ 491 |
| Expected credit loss rate | 7.80% | 7.40% |
| Probability weighted method [member] | ||
| Disclosure of detailed information about financial instruments [line items] | ||
| Probability-weighted ECLs | $ 7,385 | $ 7,149 |
| Base Scenario [member] | ||
| Disclosure of detailed information about financial instruments [line items] | ||
| Base ECLs | $ 6,849 | $ 6,658 |