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Investment Contract Liabilities - Summary of Movement in Investment Contract Liabilities Measured at Fair Value (Detail) - CAD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021
Disclosure of Investment Contract Liabilities [line items] |  |
Beginning balance | $ 3,117 |
Ending balance | 3,248 | $ 3,117
Fair value [Member] |  |
Disclosure of Investment Contract Liabilities [line items] |  |
Beginning balance | 802 | 932
New policies | 93 | 54
Changes in market conditions | (39) | (38)
Redemptions, surrenders and maturities | (106) | (138)
Impact of changes in foreign exchange rates | 46 | (8)
Ending balance | $ 796 | $ 802

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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 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 + Details
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- Definition Increase decrease in Investment contracts liabilities due to changes in market conditions. + References No definition available. + Details
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