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Transfers of Financial Assets (Summary of Carrying Amount and Fair Value of Transferred Other Financial Assets not Qualifying for Derecognition) (Details) - Other financial asset [member] - CAD ($)
$ in Millions
Oct. 31, 2025
Oct. 31, 2024
Disclosure of transferred financial assets that are not derecognised in their entirety [line items]    
Financial assets not qualifying for derecognition $ 92,390 $ 93,506
Associated liabilities 35,364 40,450
Securities lending agreement [member]    
Disclosure of transferred financial assets that are not derecognised in their entirety [line items]    
Financial assets not qualifying for derecognition 56,316 52,781
Repurchase agreements [member]    
Disclosure of transferred financial assets that are not derecognised in their entirety [line items]    
Financial assets not qualifying for derecognition $ 36,074 $ 40,725