XML 78 R80.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Deposits - Additional Information (Detail) - CAD ($)
$ in Billions
Jan. 31, 2020
Oct. 31, 2019
Disclosure of deposits [abstract]    
Aggregate amount of term deposits in denominations of $100,000 or more $ 320 $ 309