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Segmented Information - Segment Assets and Liabilities by Geographical Area (Details) - CAD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Disclosure of operating segments [line items] |  |
Total general fund assets | $ 205,614 | $ 205,374
Investments for account of segregated fund holders | 125,292 | 139,996
Asset Management |  |
Disclosure of operating segments [line items] |  |
Total general fund assets | 11,702 | 10,024
Investments for account of segregated fund holders | 0 | 0
Asset Management | United States |  |
Disclosure of operating segments [line items] |  |
Total general fund assets | 9,933 | 8,203
Asset Management | United Kingdom |  |
Disclosure of operating segments [line items] |  |
Total general fund assets | 940 | 1,064
Investments for account of segregated fund holders | 0 | 0
Asset Management | Canada |  |
Disclosure of operating segments [line items] |  |
Total general fund assets | 581 | 582
Asset Management | Other countries |  |
Disclosure of operating segments [line items] |  |
Total general fund assets | 248 | 175
Corporate |  |
Disclosure of operating segments [line items] |  |
Total general fund assets | 9,044 | 14,187
Investments for account of segregated fund holders | 8,702 | 10,722
Corporate | United States |  |
Disclosure of operating segments [line items] |  |
Total general fund assets | 1,536 | 2,570
Corporate | United Kingdom |  |
Disclosure of operating segments [line items] |  |
Total general fund assets | 4,827 | 6,892
Investments for account of segregated fund holders | 8,702 | 10,722
Corporate | Canada |  |
Disclosure of operating segments [line items] |  |
Total general fund assets | 2,500 | 4,533
Corporate | Other countries |  |
Disclosure of operating segments [line items] |  |
Total general fund assets | $ 181 | $ 192

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