v3.22.4
Securities - Additional Information (Detail) - CAD ($)
$ in Millions
3 Months Ended
Jan. 31, 2023
Oct. 31, 2022
Jan. 31, 2022
Disclosure of financial assets [line items]      
Fair value of equity securities designated at FVOCI that were disposed $ 0 $ 15 $ 38
Net realized cumulative after-tax gains reclassifed from AOCI to retained earnings 0 (1) 22
Dividend income recognized on equity securities 0 0 3
Dividend income recognized on equity securities designated at FVOCI that were disposed $ 0 $ 0 $ 0