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Invested Assets and Investment Income - Additional Information (Details) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Disclosure of financial assets [line items] |  |
Assets | $ 978,818 | $ 875,574
Liabilities | 925,858 | 826,847
Transfers out of level 1 and level 2 of fair value hierarchy assets | 0 | 0
Segregated Funds Member |  |
Disclosure of financial assets [line items] |  |
Transfers out of Level 1 into Level 2 of fair value hierarchy, assets held at end of reporting period | 0 | 0
Transfers out of Level 2 into Level 1 of fair value hierarchy, assets held at end of reporting period | 0 | 0
Other |  |
Disclosure of financial assets [line items] |  |
Equity method income | 398 | 399
Securitized Assets | Total fair value |  |
Disclosure of financial assets [line items] |  |
Assets | 6,521 | 5,782
Liabilities | $ 6,182 | $ 5,456

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