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Segregated Funds - Investments for Account of Segregated Fund Holders (Details) - CAD ($) $ in Millions | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items] |  |
Equity securities | $ 4,634 | $ 6,020
Debt securities | 74,443 | 72,619
Cash, cash equivalents and short-term securities | 9,506 | 8,890
Investment properties | 7,157 | 7,067
Other assets | 4,498 | 4,408
Total assets | 271,827 | 269,112
Less: Liabilities arising from investing activities | 247,257 | 246,141
Total investments for account of segregated fund holders | 103,062 | 106,392
Investments for account of segregated fund holders |  |
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items] |  |
Segregated and mutual fund units | 89,049 | 91,637
Equity securities | 9,771 | 10,799
Debt securities | 3,448 | 3,517
Cash, cash equivalents and short-term securities | 711 | 457
Investment properties | 400 | 374
Mortgages | 23 | 20
Other assets | 156 | 147
Total assets | 103,558 | 106,951
Investment for account of segregated fund holders, liabilities arising from investing activities |  |
Schedule of Fair Value of Separate Accounts by Major Category of Investment [Line Items] |  |
Less: Liabilities arising from investing activities | $ 496 | $ 559

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