v3.26.1
Loans, Impaired Loans, and Allowance for Credit Losses (Summary of Loans Past Due but Not Impaired) (Details) - CAD ($)
$ in Millions
Jul. 31, 2026
Oct. 31, 2025
Disclosure of detailed information about financial instruments [line items]    
Gross Loans $ 999,544 $ 961,701
Financial assets past due but not impaired [member]    
Disclosure of detailed information about financial instruments [line items]    
Gross Loans 2,884 2,725
Financial assets past due but not impaired [member] | Residential mortgages [member]    
Disclosure of detailed information about financial instruments [line items]    
Gross Loans 631 536
Financial assets past due but not impaired [member] | Consumer instalment and other personal [member]    
Disclosure of detailed information about financial instruments [line items]    
Gross Loans 1,291 1,231
Financial assets past due but not impaired [member] | Credit card [member]    
Disclosure of detailed information about financial instruments [line items]    
Gross Loans 613 626
Financial assets past due but not impaired [member] | Businesses and government [member]    
Disclosure of detailed information about financial instruments [line items]    
Gross Loans 349 332
Later than one month and not later than two months [member] | Financial assets past due but not impaired [member]    
Disclosure of detailed information about financial instruments [line items]    
Gross Loans 2,109 1,957
Later than one month and not later than two months [member] | Financial assets past due but not impaired [member] | Residential mortgages [member]    
Disclosure of detailed information about financial instruments [line items]    
Gross Loans 485 407
Later than one month and not later than two months [member] | Financial assets past due but not impaired [member] | Consumer instalment and other personal [member]    
Disclosure of detailed information about financial instruments [line items]    
Gross Loans 1,004 930
Later than one month and not later than two months [member] | Financial assets past due but not impaired [member] | Credit card [member]    
Disclosure of detailed information about financial instruments [line items]    
Gross Loans 362 373
Later than one month and not later than two months [member] | Financial assets past due but not impaired [member] | Businesses and government [member]    
Disclosure of detailed information about financial instruments [line items]    
Gross Loans 258 247
Later than two months and not later than three months [member] | Financial assets past due but not impaired [member]    
Disclosure of detailed information about financial instruments [line items]    
Gross Loans 775 768
Later than two months and not later than three months [member] | Financial assets past due but not impaired [member] | Residential mortgages [member]    
Disclosure of detailed information about financial instruments [line items]    
Gross Loans 146 129
Later than two months and not later than three months [member] | Financial assets past due but not impaired [member] | Consumer instalment and other personal [member]    
Disclosure of detailed information about financial instruments [line items]    
Gross Loans 287 301
Later than two months and not later than three months [member] | Financial assets past due but not impaired [member] | Credit card [member]    
Disclosure of detailed information about financial instruments [line items]    
Gross Loans 251 253
Later than two months and not later than three months [member] | Financial assets past due but not impaired [member] | Businesses and government [member]    
Disclosure of detailed information about financial instruments [line items]    
Gross Loans $ 91 $ 85