XML 237 R122.htm IDEA: XBRL DOCUMENT v3.22.4
Debt due within one year - Narrative (Details)
 12 Months Ended
Dec. 31, 2021
CAD ($)
Dec. 31, 2022
CAD ($)
Dec. 30, 2022
USD ($)
Disclosure of detailed information about borrowings [line items]      
Securitized trade receivables $ 1,300,000,000 $ 2,300,000,000  
Repayments of securitized trade receivables $ 150,000,000    
Commercial paper      
Disclosure of detailed information about borrowings [line items]      
Maximum borrowing capacity   3,000,000,000 $ 3,000,000,000
Unsecured revolving credit facility and expansion facility      
Disclosure of detailed information about borrowings [line items]      
Maximum borrowing capacity   $ 3,500,000,000