v3.25.4
Invested Assets and Investment Income - Additional Information (Details) - CAD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Disclosure of financial assets [line items]    
Assets $ 1,025,433 $ 978,818
Liabilities 972,945 925,858
Transfers out of level 1 and level 2 of fair value hierarchy assets 0 0
Segregated Funds Member    
Disclosure of financial assets [line items]    
Transfers out of Level 1 into Level 2 of fair value hierarchy, assets held at end of reporting period 0 0
Transfers out of Level 2 into Level 1 of fair value hierarchy, assets held at end of reporting period 0 0
Other    
Disclosure of financial assets [line items]    
Equity method income 738 398
Securitized Assets | Total fair value    
Disclosure of financial assets [line items]    
Assets 7,137 6,521
Liabilities $ 6,855 $ 6,182