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Invested Assets and Investment Income - Summary of Invested Assets and Segregated Funds Net Assets Measured at Fair Value Using Significant Unobservable Inputs (Level 3) (Parenthetical) (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2023 CAD ($)
Private Placement Bonds [Member] | Beyond 30 years [Member] | Level 2 of fair value hierarchy [Member]
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Transfers out of Level 3 of fair value hierarchy, assets	$ 1,771

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

No definition available.

+ Details

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- Definition

The amount of transfers of assets out of Level 3 of the fair value hierarchy. [Refer: Level 3 of fair value hierarchy [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 13
-IssueDate 2023-01-01
-Paragraph 93
-Subparagraph e
-Clause iv
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2023-en-r&anchor=para_93_e_iv&doctype=Standard
-URIDate 2023-03-23

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