Securities - Summary of Interest and Dividend Income and Gains on Securities (Details) - Insurance products - CAD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Jul. 31, 2026 |
Jul. 31, 2025 |
Jul. 31, 2026 |
Jul. 31, 2025 |
|
| Disclosure In Tabular Form Of Interest And Dividend Income On Securities And Gains On Securities In Respect Of Insurance Business [Line Items] | ||||
| Interest and dividend income | $ 153 | $ 137 | $ 449 | $ 406 |
| Gains (losses) from securities designated at FVTPL | (131) | 29 | (524) | 6 |
| Realized gains (losses) from FVOCI securities | 0 | 0 | (2) | 2 |
| Total interest and dividend income and gains held in our Insurance business | $ 22 | $ 166 | $ (77) | $ 414 |