Offsetting financial assets and financial liabilities - Financial Assets and Liabilities Subject to Offsetting, Enforceable Master Netting Arrangements and Similar Agreements (Parenthetical) (Detail) - CAD ($) $ in Billions |
Oct. 31, 2022 |
Oct. 31, 2021 |
|---|---|---|
| Disclosure of offsetting of financial liabilities [line items] | ||
| Financial cash collateral received | $ 20 | $ 12 |
| Financial non-cash collateral received | 316 | 307 |
| Cash margin to offset against derivative assets balance on balance sheet | 3 | 3 |
| Financial cash collateral pledged | 19 | 9 |
| Financial non-cash collateral pledged | 267 | 262 |
| Cash margin offset against derivative liabilities balance on balance sheet | $ 8 | $ 3 |