Operating Segments - Additional Information (Detail) - CAD ($) $ in Millions	3 Months Ended
Jan. 31, 2026	Oct. 31, 2025	Jan. 31, 2025
Disclosure of operating segments [line items]
Description of reportable segments	The Bank’s businesses are grouped into four business lines: Canadian Banking, International Banking, Global Wealth Management and Global Banking and Markets. The Bank’s other smaller business segments and corporate adjustments are included in the Other segment.
Tax equivalent basis gross up amount		$ 9	$ 8

The description of the factors used to identify the entity's reportable segments, including the basis of organisation (for example, whether management has chosen to organise the entity around differences in products and services, geographical areas, regulatory environments or a combination of factors and whether operating segments have been aggregated). [Refer: Geographical areas [domain]; Operating segments [member]; Products and services [domain]; Reportable segments [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-URIDate 2025-03-27

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