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Interests in Structured Entities - Investment and Maximum Exposure to Loss Related to Significant Unconsolidated Structured Entities (Detail) - Unconsolidated structured entities - Investment SEs - CAD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Disclosure of unconsolidated structured entities [Line Items]    
Company’s investment $ 8,942 $ 7,745
Company’s maximum exposure to loss 9,834 8,312
Leveraged leases    
Disclosure of unconsolidated structured entities [Line Items]    
Company’s investment 4,300 3,790
Company’s maximum exposure to loss 4,300 3,790
Infrastructure entities    
Disclosure of unconsolidated structured entities [Line Items]    
Company’s investment 3,282 2,468
Company’s maximum exposure to loss 4,174 3,035
Timberland entities    
Disclosure of unconsolidated structured entities [Line Items]    
Company’s investment 759 811
Company’s maximum exposure to loss 759 811
Real estate entities    
Disclosure of unconsolidated structured entities [Line Items]    
Company’s investment 601 676
Company’s maximum exposure to loss $ 601 $ 676