XML 192 R157.htm IDEA: XBRL DOCUMENT v3.20.4
Interests in Structured Entities - Schedule Investment and Maximum Exposure to Loss Related to Significant Unconsolidated Structured Entities (Detail) - Unconsolidated structured entities [Member] - Investment SEs [Member] - CAD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Disclosure of unconsolidated structured entities [Line Items]    
Company's investment $ 4,644 $ 4,664
Company's maximum exposure to loss 4,644 4,677
Leveraged leases [Member]    
Disclosure of unconsolidated structured entities [Line Items]    
Company's investment 3,371 3,371
Company's maximum exposure to loss 3,371 3,371
Timberland companies [Member]    
Disclosure of unconsolidated structured entities [Line Items]    
Company's investment 776 752
Company's maximum exposure to loss 776 765
Real estate companies [Member]    
Disclosure of unconsolidated structured entities [Line Items]    
Company's investment 497 541
Company's maximum exposure to loss $ 497 $ 541