Deposits - Summary of Average Deposit Balances and Average Rates of Interest (Detail) - CAD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Oct. 31, 2022 |
Oct. 31, 2021 |
|
| Disclosure of deposits [line items] | ||
| Average balances | $ 1,164,925 | $ 1,059,053 |
| Average rates | 0.92% | 0.51% |
| Canada [member] | ||
| Disclosure of deposits [line items] | ||
| Average balances | $ 847,052 | $ 772,875 |
| Average rates | 1.02% | 0.61% |
| United States [member] | ||
| Disclosure of deposits [line items] | ||
| Average balances | $ 207,436 | $ 180,230 |
| Average rates | 0.50% | 0.13% |
| Europe [member] | ||
| Disclosure of deposits [line items] | ||
| Average balances | $ 81,824 | $ 77,217 |
| Average rates | 1.03% | 0.55% |
| Other International [member] | ||
| Disclosure of deposits [line items] | ||
| Average balances | $ 28,613 | $ 28,731 |
| Average rates | 0.72% | 0.33% |