The amount of financial assets classified as derivative instruments. [Refer: Financial assets; Derivatives [member]]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2027-01-01
-Name IAS
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-IssueDate 2025-01-01
-Paragraph 55
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The amount of financial liabilities classified as derivative instruments. [Refer: Financial assets; Derivatives [member]]

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Disclosure of fair value measurement of assets and liabilities.

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Gains Losses Recognised In Other Comprehensive Income Excluding Foreign Currency Translation Fair Value Measurement Assets

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Fair value of financial instruments - Changes in Fair Value Measurement for Instruments Measured on a Recurring Basis and Categorized in Level 3 (Parenthetical) (Detail) - CAD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2026	Jul. 31, 2025	Jul. 31, 2026	Jul. 31, 2025	Oct. 31, 2025
Disclosure of fair value measurement of assets and liabilities [line Items]
Derivative assets	$ 162,386		$ 162,386		$ 177,206
Derivative liabilities	167,038		167,038		183,953
Recurring [member]
Disclosure of fair value measurement of assets and liabilities [line Items]
Derivative assets	162,386		162,386		177,206
Derivative liabilities	167,038		167,038		$ 183,953
Investment [member] \| Level 3 [member] \| Recurring [member]
Disclosure of fair value measurement of assets and liabilities [line Items]
Unrealized gains (losses), excluding foreign currency translation, recognized in OCI		$ 2	78	$ 33
Net derivative balances, category [Member] \| Level 3 [member] \| Recurring [member]
Disclosure of fair value measurement of assets and liabilities [line Items]
Derivative assets	383	353	383	353
Derivative liabilities	$ 1,364	$ 1,323	$ 1,364	$ 1,323