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Risk Management - Schedule of Maturity of Financial Liabilities (Parenthetical) (Detail) - CAD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Jan. 01, 2022
Disclosure Of Maturity Analysis For Financial Liabilities [line items]
Carrying value of deposits from Bank clients	$ 21,616	$ 22,507	$ 20,720
Fair value of deposits from Bank clients	$ 21,518
Level 2 [Member]
Disclosure Of Maturity Analysis For Financial Liabilities [line items]
Carrying value of deposits from Bank clients		22,507
Fair value of deposits from Bank clients		$ 22,271

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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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-IssueDate 2023-01-01
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-URIDate 2023-03-23

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- Definition

Deposits from customers at fair value.

+ References

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- Definition

Disclosure Of Maturity Analysis For Financial Liabilities [line items]

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