XML 206 R177.htm IDEA: XBRL DOCUMENT v3.22.4
Related Parties - Summary of Compensation of Key Management Personnel (Detail) - CAD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Disclosure Of Compensation Of Key Management Personnel [abstract]    
Short-term employee benefits $ 73 $ 65
Post-employment benefits 6 5
Share-based payments 73 57
Termination benefits 0  
Other long-term benefits 3 2
Total $ 155 $ 129