XML 161 R141.htm IDEA: XBRL DOCUMENT v3.25.3
Goodwill and Other Intangibles (Narrative) (Details) - CAD ($)
$ in Billions
 12 Months Ended
Oct. 31, 2025
Oct. 31, 2024
Disclosure of detailed information about intangible assets [line items]    
Amount of capital $ 22.9 $ 11.5
Bottom of range [member] | Goodwill and impairment testing [member] | Terminal Value [Member]    
Disclosure of detailed information about intangible assets [line items]    
Terminal growth rates 3.70% 2.00%
Top of range [member] | Goodwill and impairment testing [member] | Terminal Value [Member]    
Disclosure of detailed information about intangible assets [line items]    
Terminal growth rates 4.20% 4.10%