XML 173 R138.htm IDEA: XBRL DOCUMENT v3.22.4
Right of Use Assets - Narrative (Details) - CAD ($)
$ in Millions
 12 Months Ended
Jun. 30, 2021
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Disclosure of quantitative information about right-of-use assets [line items]        
Additions   $ 40 $ 1  
Lease liabilities recognized   16 15  
Interest on lease liabilities   7 7 $ 8
Principal repayments   9 8  
Expense relating to short-term and low value leases   2 0 0
Expense relating to variable lease payments   8 6 $ 7
Land        
Disclosure of quantitative information about right-of-use assets [line items]        
Additions   36 0  
Pipeline        
Disclosure of quantitative information about right-of-use assets [line items]        
Additions   $ 0 $ 0  
Derecognition of the right-of-use asset $ 41      
Lease liability 43      
Gains on lease liability $ 2