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Contractual Maturities of Assets and Liabilities and Off-Balance Sheet Commitments - Summary of Remaining Contractual Maturity (Parenthetical) (Detail) - CAD ($) $ in Millions	Oct. 31, 2025	Oct. 31, 2024
Disclosure of assets and liabilities according to their remaining contractual maturities [Abstract]
Deposits eligible for early redemption without penalty	$ 27,819	$ 29,136

X

- Definition

Deposits eligible for early redemption without penalty.

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

X

- Definition

Disclosure of assets and liabilities according to their remaining contractual maturities [Abstract]

+ References

No definition available.

+ Details

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Period Type:	duration