XML 114 R87.htm IDEA: XBRL DOCUMENT v3.20.4
Financial Instrument Risk Management - Fair Value of Derivative Instruments (Details) - CAD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Disclosure of maturity analysis for derivative financial liabilities [line items]    
Derivative assets $ 2,160 $ 1,548
Derivative liabilities (1,744) (2,040)
Measured at fair value    
Disclosure of maturity analysis for derivative financial liabilities [line items]    
Derivative liabilities (1,744) (2,040)
Measured at fair value | Under 1 Year    
Disclosure of maturity analysis for derivative financial liabilities [line items]    
Derivative liabilities (215) (73)
Measured at fair value | 1 to 5 Years    
Disclosure of maturity analysis for derivative financial liabilities [line items]    
Derivative liabilities (245) (377)
Measured at fair value | Over 5 Years    
Disclosure of maturity analysis for derivative financial liabilities [line items]    
Derivative liabilities (1,284) (1,590)
Measured at fair value    
Disclosure of maturity analysis for derivative financial liabilities [line items]    
Derivative assets 2,160 1,548
Measured at fair value | Under 1 Year    
Disclosure of maturity analysis for derivative financial liabilities [line items]    
Derivative assets 329 180
Measured at fair value | 1 to 5 Years    
Disclosure of maturity analysis for derivative financial liabilities [line items]    
Derivative assets 223 231
Measured at fair value | Over 5 Years    
Disclosure of maturity analysis for derivative financial liabilities [line items]    
Derivative assets $ 1,608 $ 1,137