XML 130 R78.htm IDEA: XBRL DOCUMENT v3.25.3
IFRS 7 Disclosure - Summary of Structural Interest Sensitivity (Detail) - CAD ($)
$ in Millions
 12 Months Ended
Oct. 31, 2025
Oct. 31, 2024
100 bp increase [member]    
Disclosure Foreign Currency Sensitivity Analysis Effect On Equity [Line Items]    
Economic value of equity $ (1,568) $ (1,338)
Net interest income 236 (21)
100 bp decrease [member]    
Disclosure Foreign Currency Sensitivity Analysis Effect On Equity [Line Items]    
Economic value of equity 1,201 780
Net interest income (245) $ (31)
Canada Dollars [Member] | 100 bp increase [member]    
Disclosure Foreign Currency Sensitivity Analysis Effect On Equity [Line Items]    
Economic value of equity (616)  
Net interest income 247  
Canada Dollars [Member] | 100 bp decrease [member]    
Disclosure Foreign Currency Sensitivity Analysis Effect On Equity [Line Items]    
Economic value of equity 530  
Net interest income (224)  
United States of America Dollars [Member] | 100 bp increase [member]    
Disclosure Foreign Currency Sensitivity Analysis Effect On Equity [Line Items]    
Economic value of equity (952)  
Net interest income (11)  
United States of America Dollars [Member] | 100 bp decrease [member]    
Disclosure Foreign Currency Sensitivity Analysis Effect On Equity [Line Items]    
Economic value of equity 671  
Net interest income $ (21)