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Property and Equipment - Additional Information (Detail) - CAD ($) $ in Millions	12 Months Ended
	Oct. 31, 2025	Oct. 31, 2024
Canadian Personal And Business Banking [Member]
Disclosure of detailed information about property, plant and equipment [line items]
additions/disposals	$ 218	$ 246
Canadian Commercial Banking and Wealth Management [member]
Disclosure of detailed information about property, plant and equipment [line items]
additions/disposals	1	21
U.S. Commercial Banking and Wealth Management [member]
Disclosure of detailed information about property, plant and equipment [line items]
additions/disposals	23	64
Capital Markets and Direct Financial Services [member]
Disclosure of detailed information about property, plant and equipment [line items]
additions/disposals	20	30
Corporate and Other [member]
Disclosure of detailed information about property, plant and equipment [line items]
additions/disposals	$ 27	$ 107

X

- Definition

Additions including business combinations, property, plant and equipment.

+ References

No definition available.

+ Details

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X

- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

No definition available.

+ Details

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X

- Details

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X

- Details

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X

- Details

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X

- Details

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X

- Details

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