v3.26.1
Deposits - Summary of Maturity Schedule for Term Deposits (Detail) - Canada [member] - CAD ($)
$ in Millions
Apr. 30, 2026
 [1]
Jan. 31, 2026
 [1]
Oct. 31, 2025
Disclosure Of Deposits [line items]      
Term deposit $ 280,793 $ 277,051 $ 274,151
Within three months [member]      
Disclosure Of Deposits [line items]      
Term deposit 50,686 59,932 54,287
Three to six months [member]      
Disclosure Of Deposits [line items]      
Term deposit 35,285 32,509 37,607
Six to twelve months [member]      
Disclosure Of Deposits [line items]      
Term deposit 68,997 59,105 57,519
One to 5 years [member]      
Disclosure Of Deposits [line items]      
Term deposit 105,503 107,238 109,573
Over 5 years [member]      
Disclosure Of Deposits [line items]      
Term deposit $ 20,322 $ 18,267 $ 15,165
[1] The majority of foreign term deposits are in excess of $100,000.