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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, 2023 | Dec. 31, 2022
Disclosure of Investment Contract Liabilities [line items] |  |
Ending balance | $ 11,816 | $ 10,079
Fair value [Member] |  |
Disclosure of Investment Contract Liabilities [line items] |  |
Balance, excluding those for account of segregated fund holders, January 1 | 798 | 825
New contracts | 48 | 79
Changes in market conditions | 47 | (56)
Redemptions, surrenders and maturities | (122) | (99)
Impact of changes in foreign exchange rates | (22) | 49
Balance, excluding those for account of segregated fund holders, December 31 | 749 | 798
Investment contract liabilities for account of segregated fund holders | 263,401 | 238,346
Ending balance | $ 264,150 | $ 239,144

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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 2023-01-01 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_55&doctype=Standard -URIDate 2023-03-23 + Details
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