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Deposits - Summary of Deposits (Parenthetical) (Detail) - CAD ($) $ in Millions	Oct. 31, 2025	Oct. 31, 2024
Disclosure Of Deposits [Line Items]
Non interest bearing deposits	$ 43,766	$ 44,617
Deposits booked payable on a fixed date	430,448
Unencumbered liquid assets	393,535	396,338
Bank Recapitalization (Bail-In) Regime [member]
Disclosure Of Deposits [Line Items]
Deposits booked payable on a fixed date	62,843	65,986
U.S. dollars [member]
Disclosure Of Deposits [Line Items]
Deposits liabilities	508,058	521,160
Non USD Non CAD [Member]
Disclosure Of Deposits [Line Items]
Deposits liabilities	$ 59,697	$ 54,397

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Disclosure Of Deposits [Line Items]

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Non interest bearing deposits.

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- Definition

The amount of balances in customers' term deposits held by the entity.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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The amount of deposit liabilities held by the entity.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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The amount of financial assets held for managing liquidity risk (for example, financial assets that are readily saleable or expected to generate cash inflows to meet cash outflows on financial liabilities). [Refer: Liquidity risk [member]; Financial assets; Financial liabilities]

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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