XML 142 R113.htm IDEA: XBRL DOCUMENT v3.24.0.1
Insurance and Reinsurance Contract Assets and Liabilities - Summary of Actuarial Methods and Assumptions (Parenthetical) (Detail) - CAD ($)
$ in Millions
 3 Months Ended 9 Months Ended 12 Months Ended
Dec. 31, 2023
Sep. 30, 2023
Sep. 30, 2023
Dec. 31, 2023
Dec. 31, 2022
Disclosure of sensitivity analysis to changes in risk variables that arise from contracts within scope of IFRS 17 [line items]          
Impact of changes in actuarial methods and assumptions, pre-tax $ 2,850 $ 347 $ 347 $ 3,197 $ (192)
Non-controlling interests [member]          
Disclosure of sensitivity analysis to changes in risk variables that arise from contracts within scope of IFRS 17 [line items]          
Impact of changes in actuarial methods and assumptions, pre-tax 97 103 103   8
Non-controlling interests [member] | CSM [Member]          
Disclosure of sensitivity analysis to changes in risk variables that arise from contracts within scope of IFRS 17 [line items]          
Impact of changes in actuarial methods and assumptions, pre-tax $ 87 $ 72 $ 72   $ 0