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Segmented Information - Assets and Liabilities by Segment (Details) - CAD ($) $ in Millions | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Disclosure of operating segments [line items] |  |
Total general fund assets | $ 168,765 | $ 162,720
Investments for account of segregated fund holders | 103,062 | 106,392
Total general fund liabilities | 144,195 | 139,749
Consolidation adjustments |  |
Disclosure of operating segments [line items] |  |
Total general fund assets |  | (191)
Investments for account of segregated fund holders | 0 | 0
Total general fund liabilities | (217) | (191)
SLF Canada | Reportable segments |  |
Disclosure of operating segments [line items] |  |
Total general fund assets | 86,697 | 84,698
Investments for account of segregated fund holders | 85,885 | 87,817
Total general fund liabilities | 78,946 | 76,683
SLF U.S. | Reportable segments |  |
Disclosure of operating segments [line items] |  |
Total general fund assets | 34,584 | 32,259
Investments for account of segregated fund holders | 491 | 488
Total general fund liabilities | 30,671 | 28,791
SLF Asset Management |  |
Disclosure of operating segments [line items] |  |
Total general fund assets | 4,468 | 4,115
Investments for account of segregated fund holders | 0 | 0
SLF Asset Management | Reportable segments |  |
Disclosure of operating segments [line items] |  |
Total general fund assets | 4,468 | 4,115
Investments for account of segregated fund holders | 0 | 0
Total general fund liabilities | 2,396 | 2,346
SLF Asia | Reportable segments |  |
Disclosure of operating segments [line items] |  |
Total general fund assets | 28,855 | 27,234
Investments for account of segregated fund holders | 6,173 | 6,101
Total general fund liabilities | 23,692 | 21,748
Corporate |  |
Disclosure of operating segments [line items] |  |
Total general fund assets | 14,378 | 14,605
Investments for account of segregated fund holders | 10,513 | 11,986
Corporate | Reportable segments |  |
Disclosure of operating segments [line items] |  |
Total general fund assets | 14,378 | 14,605
Investments for account of segregated fund holders | 10,513 | 11,986
Total general fund liabilities | $ 8,707 | $ 10,372

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