XML 124 R96.htm IDEA: XBRL DOCUMENT v3.23.1
Financial Instruments - Carrying Amounts and Fair Values of Financial Instruments (Details) - CAD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Other long-term liabilities    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities, carrying amount $ (3) $ (133)
Other long-term liabilities | Level 1    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities, at fair value 0 0
Other long-term liabilities | Level 2    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities, at fair value (3) (85)
Other long-term liabilities | Level 3    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities, at fair value 0 (48)
Fixed rate long-term debt    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities, carrying amount (11,445) (14,694)
Fixed rate long-term debt | Fixed interest rate    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities, carrying amount (11,445) (13,554)
Fixed rate long-term debt | Fixed interest rate | Level 1    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities, at fair value (10,796) (15,420)
Fixed rate long-term debt | Fixed interest rate | Level 2    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities, at fair value 0 0
Fixed rate long-term debt | Fixed interest rate | Level 3    
Disclosure of detailed information about financial instruments [line items]    
Financial liabilities, at fair value 0 0
Investments    
Disclosure of detailed information about financial instruments [line items]    
Financial assets, carrying amount 491 309
Investments | Level 1    
Disclosure of detailed information about financial instruments [line items]    
Financial assets, at fair value 491 309
Investments | Level 2    
Disclosure of detailed information about financial instruments [line items]    
Financial assets, at fair value 0 0
Investments | Level 3    
Disclosure of detailed information about financial instruments [line items]    
Financial assets, at fair value 0 0
Other long-term assets    
Disclosure of detailed information about financial instruments [line items]    
Financial assets, carrying amount 9 140
Other long-term assets | Level 1    
Disclosure of detailed information about financial instruments [line items]    
Financial assets, at fair value 0 0
Other long-term assets | Level 2    
Disclosure of detailed information about financial instruments [line items]    
Financial assets, at fair value 9 140
Other long-term assets | Level 3    
Disclosure of detailed information about financial instruments [line items]    
Financial assets, at fair value $ 0 $ 0