XML 148 R113.htm IDEA: XBRL DOCUMENT v3.22.0.1
Cash and Cash Equivalents - Schedule Representing Cash and Cash Equivalents (Detail) - CAD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Cash and cash equivalents [abstract]        
Cash $ 2,366 $ 368    
Short-Term Investments 507 10    
Total $ 2,873 $ 378 $ 186 $ 781