XML 186 R94.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Financial Instrument Risk Management - Derivative Financial Instruments by Counterparty Credit Rating (Details) - CAD ($)
$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Disclosure of external credit grades [line items]    
Financial assets $ 152,785 $ 143,061
Derivative assets    
Disclosure of external credit grades [line items]    
Financial assets 1,548 1,112
Derivative assets | Over-the-counter derivative contracts | Credit risk | Gross positive replacement cost    
Disclosure of external credit grades [line items]    
Financial assets 1,529 1,085
Derivative assets | Over-the-counter derivative contracts | Credit risk | Gross positive replacement cost | AA    
Disclosure of external credit grades [line items]    
Financial assets 439 289
Derivative assets | Over-the-counter derivative contracts | Credit risk | Gross positive replacement cost | A    
Disclosure of external credit grades [line items]    
Financial assets 1,008 750
Derivative assets | Over-the-counter derivative contracts | Credit risk | Gross positive replacement cost | BBB    
Disclosure of external credit grades [line items]    
Financial assets 82 46
Derivative assets | Over-the-counter derivative contracts | Credit risk | Impact of master netting agreements    
Disclosure of external credit grades [line items]    
Financial assets (737) (768)
Derivative assets | Over-the-counter derivative contracts | Credit risk | Impact of master netting agreements | AA    
Disclosure of external credit grades [line items]    
Financial assets (210) (252)
Derivative assets | Over-the-counter derivative contracts | Credit risk | Impact of master netting agreements | A    
Disclosure of external credit grades [line items]    
Financial assets (517) (507)
Derivative assets | Over-the-counter derivative contracts | Credit risk | Impact of master netting agreements | BBB    
Disclosure of external credit grades [line items]    
Financial assets (10) (9)
Derivative assets | Over-the-counter derivative contracts | Credit risk | Net replacement cost    
Disclosure of external credit grades [line items]    
Financial assets 792 317
Derivative assets | Over-the-counter derivative contracts | Credit risk | Net replacement cost | AA    
Disclosure of external credit grades [line items]    
Financial assets 229 37
Derivative assets | Over-the-counter derivative contracts | Credit risk | Net replacement cost | A    
Disclosure of external credit grades [line items]    
Financial assets 491 243
Derivative assets | Over-the-counter derivative contracts | Credit risk | Net replacement cost | BBB    
Disclosure of external credit grades [line items]    
Financial assets 72 37
Derivative assets | Exchange-traded derivative contracts    
Disclosure of external credit grades [line items]    
Financial assets $ 19 $ 27