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Invested Assets and Investment Income - Summary of Total Investment Expenses (Detail) - CAD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022
Investment Expenses [line items] |  |
Total investment expenses | $ 1,297 | $ 1,221
Related to invested assets [Member] |  |
Investment Expenses [line items] |  |
Total investment expenses | 720 | 679
Related to segregated, mutual and other funds [Member] |  |
Investment Expenses [line items] |  |
Total investment expenses | $ 577 | $ 542

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- Definition Investment expense. + References No definition available. + Details
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- Details
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Period Type: |

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- Details
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Period Type: |