The amount of outstanding funds that the entity is obligated to repay.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2022-03-24
-Paragraph 55
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_55&doctype=Standard
-URIDate 2022-03-24

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IFRS 7 Disclosures - Additional Information (Detail) $ in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2022 CAD ($)	Dec. 31, 2021 CAD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 CAD ($)	Dec. 31, 2020 USD ($)
Financial Instruments - Disclosures under IFRS 7 [line items]
Total unencumbered assets	$ 477,700	$ 502,400
Dynamically hedged variable annuity guarantee best estimate liabilities, rebalancing percentage intervals	5.00%
Variable annuity guarantee liabilities, rebalanced basis point intervals	20.00%
50 basis point decrease in interest [member]
Financial Instruments - Disclosures under IFRS 7 [line items]
Sensitivity of net income attributed to shareholders	50.00%
Sensitivity of our net income attributed to shareholders due to change in interest rate	$ 100
50 basis point increase in interest [member]
Financial Instruments - Disclosures under IFRS 7 [line items]
Sensitivity of net income attributed to shareholders	50.00%
Sensitivity of our net income attributed to shareholders due to change in interest rate	$ 100
Unsecured revolving credit facility [Member] \| Canadian chartered banks [Member]
Financial Instruments - Disclosures under IFRS 7 [line items]
Estimated maximum borrowing capacity					$ 500
Unsecured revolving credit facility [Member] \| U.S.banks [Member]
Financial Instruments - Disclosures under IFRS 7 [line items]
Estimated maximum borrowing capacity						$ 500
Amounts outstanding			$ 0	$ 0
FHLBI facility [Member]
Financial Instruments - Disclosures under IFRS 7 [line items]
Estimated maximum borrowing capacity			3,800	4,400
Amounts outstanding			$ 500	$ 500
10% [member]
Financial Instruments - Disclosures under IFRS 7 [line items]
Percentage of expected changes in market values of publicly traded equities	10.00%	10.00%
20% [member]
Financial Instruments - Disclosures under IFRS 7 [line items]
Percentage of expected changes in market values of publicly traded equities	20.00%	20.00%
30% [member]
Financial Instruments - Disclosures under IFRS 7 [line items]
Percentage of expected changes in market values of publicly traded equities	30.00%	30.00%