Consolidated Statement of Cash Flows (Parenthetical) - CAD ($) $ in Millions	9 Months Ended
Jul. 31, 2026	Oct. 31, 2025
Statement of cash flows [abstract]
Cash and cash equivalents acquired as part of the acquisitions	$ 13
Restricted cash and cash equivalents	$ 61	$ 108

The amount of cash and cash equivalents in subsidiaries or other businesses over which control is obtained or lost. [Refer: Total for all subsidiaries [member]; Cash and cash equivalents]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 7
-IssueDate 2025-01-01
-Paragraph 40
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2025-en-r&anchor=para_40_c&doctype=Standard
-URIDate 2025-03-27

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration