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Investment Contract Liabilities - Summary of Changes in Investment Contract Liabilities Measured at Amortized Cost (Detail) - CAD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Disclosure of Investment Contract Liabilities [line items]
Beginning balance	$ 3,288
Ending balance	3,117	$ 3,288
Amortized cost, gross of reinsurance ceded [Member]
Disclosure of Investment Contract Liabilities [line items]
Beginning balance	2,356	2,315
Policy deposits	92	202
Interest	71	61
Withdrawals	(191)	(194)
Fees	(1)	(1)
Other	(5)
Impact of changes in foreign exchange rates	(7)	(27)
Ending balance	$ 2,315	$ 2,356

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- Definition

The amount of liabilities relating to investment contracts that fall within the scope of IAS 39 or IFRS 9.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2021-01-01
-Paragraph 55
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_55&doctype=Standard
-URIDate 2021-03-24

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- Definition

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- Definition

Increase decrease in investment contracts liabilities due to impact of changes in foreign exchange rates.

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