Loans, Impaired Loans, and Allowance for Credit Losses (Schedule of Incremental Lifetime ECL Impact) (Details) - CAD ($) $ in Millions |
Apr. 30, 2024 |
Oct. 31, 2023 |
|---|---|---|
| IFRS Statement [Line Items] | ||
| Incremental lifetime ECLs impact | $ 1,982 | $ 1,854 |
| 12-month expected credit losses [member] | ||
| IFRS Statement [Line Items] | ||
| All performing loans and off-balance sheet instruments using 12-month ECLs | 5,403 | 5,295 |
| Stage One and Two [member] | ||
| IFRS Statement [Line Items] | ||
| Probability-weighted ECLs | $ 7,385 | $ 7,149 |