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Goodwill and Intangible Assets - Narrative (Details)
$ in Millions
 12 Months Ended
Dec. 31, 2023
CAD ($)
Disclosure of detailed information about intangible assets [line items]  
Goodwill impairment $ 0
Bottom of range  
Disclosure of detailed information about intangible assets [line items]  
CGU discount rate 9.50%
Price-to-earnings multiples used for valuation 10.50
Price-to-assets-under-management multiples used for valuation 1.50%
Bottom of range | Income approach  
Disclosure of detailed information about intangible assets [line items]  
Future sales projection for valuation, in years 10 years
Top of range  
Disclosure of detailed information about intangible assets [line items]  
CGU discount rate 12.50%
Price-to-earnings multiples used for valuation 11.50
Price-to-assets-under-management multiples used for valuation 2.00%
Top of range | Income approach  
Disclosure of detailed information about intangible assets [line items]  
Future sales projection for valuation, in years 15 years