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IFRS 7 Disclosures - Schedule of Maturity of Financial Liabilities (Parenthetical) (Detail) - CAD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Disclosure Of Maturity Analysis For Financial Liabilities [line items]
Carrying value of deposits from Bank clients	$ 20,720	$ 20,889
Level 2 [Member]
Disclosure Of Maturity Analysis For Financial Liabilities [line items]
Fair value of deposits from Bank clients	$ 20,746	$ 21,085

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- Definition

The amount of deposit liabilities from customers held by the entity.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-URIDate 2021-03-24

+ Details

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- Definition

Deposits from customers at fair value.

+ References

No definition available.

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- Definition

Disclosure Of Maturity Analysis For Financial Liabilities [line items]

+ References

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