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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
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Dec. 31, 2023 | Dec. 31, 2022
Disclosure of Investment Contract Liabilities [line items] |  |
Beginning balance | $ 10,079 |
Ending balance | 11,816 | $ 10,079
Amortized cost, gross of reinsurance ceded [Member] |  |
Disclosure of Investment Contract Liabilities [line items] |  |
Beginning balance | 9,281 | 9,239
Policy deposits | 3,365 | 1,634
Interest | 218 | 150
Withdrawals | (1,629) | (1,882)
Fees | 1 | 0
Impact of changes in foreign exchange rates | (108) | 81
Other | (61) | 59
Ending balance | $ 11,067 | $ 9,281

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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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