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Invested Assets and Investment Income - Schedule of Other Invested Assets Include Investments in Associates and Joint Ventures Accounted Using Equity Method (Detail) - CAD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
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Disclosure Of Carrying Value Measurement Of Assets [Line Items] |  |
Investments in associates carrying value | $ 10,292 | $ 8,818
Percentage of investments in associates carrying value | 100.00% | 100.00%
Leveraged leases [Member] |  |
Disclosure Of Carrying Value Measurement Of Assets [Line Items] |  |
Investments in associates carrying value | $ 3,840 | $ 3,457
Percentage of investments in associates carrying value | 37.00% | 40.00%
Timber and agriculture [Member] |  |
Disclosure Of Carrying Value Measurement Of Assets [Line Items] |  |
Investments in associates carrying value | $ 822 | $ 808
Percentage of investments in associates carrying value | 8.00% | 9.00%
Real estate [Member] |  |
Disclosure Of Carrying Value Measurement Of Assets [Line Items] |  |
Investments in associates carrying value | $ 1,845 | $ 1,528
Percentage of investments in associates carrying value | 18.00% | 17.00%
Other [Member] |  |
Disclosure Of Carrying Value Measurement Of Assets [Line Items] |  |
Investments in associates carrying value | $ 3,785 | $ 3,025
Percentage of investments in associates carrying value | 37.00% | 34.00%

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