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Insurance Contract Liabilities and Investment Contract Liabilities - Total Assets Supporting Total Liabilities And Equity (Details) - CAD ($) $ in Millions | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | $ 180,229 | $ 168,765
Debt securities |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 81,606 | 74,443
Equity securities |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 4,787 | 4,634
Mortgages and loans(1) |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 48,222 | 46,822
Investment properties |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 7,306 | 7,157
Other |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 38,308 | 35,709
Individual participating life |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 43,499 | 39,292
Individual participating life | Debt securities |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 22,533 | 19,624
Individual participating life | Equity securities |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 2,899 | 2,557
Individual participating life | Mortgages and loans(1) |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 8,372 | 7,978
Individual participating life | Investment properties |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 4,941 | 4,736
Individual participating life | Other |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 4,754 | 4,397
Individual non-participating life and health |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 48,007 | 45,117
Individual non-participating life and health | Debt securities |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 21,301 | 18,720
Individual non-participating life and health | Equity securities |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 1,418 | 1,303
Individual non-participating life and health | Mortgages and loans(1) |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 14,145 | 14,398
Individual non-participating life and health | Investment properties |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 1,790 | 1,638
Individual non-participating life and health | Other |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 9,353 | 9,058
Group life and health |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 19,128 | 18,440
Group life and health | Debt securities |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 6,858 | 6,271
Group life and health | Equity securities |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 72 | 70
Group life and health | Mortgages and loans(1) |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 9,301 | 9,217
Group life and health | Investment properties |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 0 | 0
Group life and health | Other |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 2,897 | 2,882
Individual annuities |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 18,617 | 18,695
Individual annuities | Debt securities |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 11,711 | 11,918
Individual annuities | Equity securities |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 48 | 49
Individual annuities | Mortgages and loans(1) |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 6,065 | 5,769
Individual annuities | Investment properties |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 0 | 0
Individual annuities | Other |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 793 | 959
Group annuities |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 15,318 | 13,603
Group annuities | Debt securities |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 7,323 | 6,448
Group annuities | Equity securities |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 37 | 35
Group annuities | Mortgages and loans(1) |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 7,261 | 6,298
Group annuities | Investment properties |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 0 | 0
Group annuities | Other |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 697 | 822
Equity and other |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 35,660 | 33,618
Equity and other | Debt securities |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 11,880 | 11,462
Equity and other | Equity securities |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 313 | 620
Equity and other | Mortgages and loans(1) |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 3,078 | 3,162
Equity and other | Investment properties |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 575 | 783
Equity and other | Other |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | $ 19,814 | $ 17,591

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