Loans, Impaired Loans, and Allowance for Credit Losses (Summary of Bank Loans) (Details) - CAD ($) $ in Millions |
Jul. 31, 2026 |
Oct. 31, 2025 |
Jul. 31, 2025 |
|---|---|---|---|
| Disclosure Of Banks Loans And Acceptances [Line Items] | |||
| Residential mortgages | $ 292,598 | $ 315,063 | |
| Consumer installment and other personal | 291,421 | 259,033 | |
| Credit card | 42,104 | 41,662 | |
| Business and government | 373,421 | 345,943 | |
| Total loans | 999,544 | 961,701 | |
| Loans at FVOCI | 374 | 288 | |
| Loans | 999,918 | 961,989 | |
| Total allowance for loan losses | 8,508 | 8,689 | $ 8,682 |
| Total loans, net of allowance | $ 991,410 | $ 953,300 |