Fair Value of Financial Instruments - Changes in Fair Value Attributable to Changes in Bank'S Own Credit Risk for Financial Liabilities Designated at Fair Value (Detail) - Senior note liabilities [member] - CAD ($)
$ in Millions

3 Months Ended

Apr. 30, 2026

Jan. 31, 2026

Apr. 30, 2025

Disclosure of detailed information about financial instruments [line items]

Contractual maturity amount

$ 52,301

$ 50,905

$ 45,364

Carrying value

^[1]

48,629

47,740

39,127

Difference between contractual maturity amount and carrying value

3,672

3,165

6,237

Changes in fair value for the three months period attributable to changes in own credit risk recorded in other comprehensive income Gains/(Losses)

413

(246)

512

Cumulative changes in fair value attributable to changes in own credit risk Gains/(Losses)

^[2]

$ (1,439)

$ (1,852)

$ (665)

[1]	Changes in fair value attributable to changes in the Bank’s own credit risk are recorded in other comprehensive income. Other changes in fair value are recorded in non-interest income – trading revenues. The offsetting fair value changes from associated derivatives is also recorded in non-interest income – trading revenues.
[2]	The cumulative change in fair value is measured from the instruments’ date of initial recognition.

- Definition

The accumulated increase (decrease) in the fair value of financial liabilities that is attributable to changes in the credit risk of the liabilities. [Refer: Credit risk [member]; Market risk [member]; Increase (decrease) in fair value of financial liability, attributable to changes in credit risk of liability]

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- Definition

The amount by which the carrying amount of a financial liability is more (less) than the amount that the entity would be contractually required to pay at maturity to the holder of the obligation. [Refer: Carrying amount [member]]

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