XML 145 R116.htm IDEA: XBRL DOCUMENT v3.22.4
Risk Management - Summary of Credit Default Swap Protection Sold (Detail) - CAD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Disclosure of information about credit exposures designated as measured at fair value through profit or loss [Line Items]    
Notional amount $ 395,957 $ 440,098
Credit default swaps [Member]    
Disclosure of information about credit exposures designated as measured at fair value through profit or loss [Line Items]    
Notional amount 159 44
Fair value $ 4 $ 1
Weighted average maturity (in years) 4 years 2 years
Credit default swaps [Member] | A [Member]    
Disclosure of information about credit exposures designated as measured at fair value through profit or loss [Line Items]    
Notional amount $ 133 $ 16
Fair value $ 4  
Weighted average maturity (in years) 4 years 1 year
Credit default swaps [Member] | BBB [Member]    
Disclosure of information about credit exposures designated as measured at fair value through profit or loss [Line Items]    
Notional amount $ 26 $ 28
Fair value   $ 1
Weighted average maturity (in years) 1 year 2 years
Credit default swaps [Member] | Single name CDSs [Member]    
Disclosure of information about credit exposures designated as measured at fair value through profit or loss [Line Items]    
Notional amount $ 159 $ 44
Fair value $ 4 $ 1
Weighted average maturity (in years) 4 years 2 years