XML 141 R125.htm IDEA: XBRL DOCUMENT v3.22.4
LONG-TERM DEBT - Bank Credit and Letter of Credit Facilities (Details) - CAD ($)
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Disclosure of detailed information about borrowings [line items]      
Long-term debt $ 29,905,000,000 $ 17,137,000,000  
Short-term borrowings 2,985,000,000 2,200,000,000  
Debt derivatives      
Disclosure of detailed information about borrowings [line items]      
Notional amount 1,019,000,000    
Revolving Credit Facility      
Disclosure of detailed information about borrowings [line items]      
Maximum borrowing capacity $ 4,000,000,000 4,000,000,000 $ 3,200,000,000
Revolving Credit Facility | Bank Prime Rate or Base Rate | Minimum      
Disclosure of detailed information about borrowings [line items]      
Spread on variable rate (as a percent) 0.00%    
Revolving Credit Facility | Bank Prime Rate or Base Rate | Maximum      
Disclosure of detailed information about borrowings [line items]      
Spread on variable rate (as a percent) 1.25%    
Revolving Credit Facility | Bankers' Acceptance Rate or London Inter-Bank Offered Rate | Minimum      
Disclosure of detailed information about borrowings [line items]      
Spread on variable rate (as a percent) 0.85%    
Revolving Credit Facility | Bankers' Acceptance Rate or London Inter-Bank Offered Rate | Maximum      
Disclosure of detailed information about borrowings [line items]      
Spread on variable rate (as a percent) 2.25%    
Revolving Credit Facility, Tranche One      
Disclosure of detailed information about borrowings [line items]      
Maximum borrowing capacity $ 3,000,000,000 2,500,000,000  
Revolving Credit Facility, Tranche Two      
Disclosure of detailed information about borrowings [line items]      
Maximum borrowing capacity $ 1,000,000,000 $ 700,000,000