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Insurance Contract Liabilities and Investment Contract Liabilities - Total Assets Supporting Total Liabilities And Equity (Details) - CAD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | $ 205,614 | $ 205,374
Debt securities |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 75,902 | 88,727
Equity securities |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 7,148 | 9,113
Mortgages and loans |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 56,261 | 51,692
Investment properties |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 10,102 | 9,109
Other |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 56,201 | 46,733
Individual participating life |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 50,381 | 52,381
Individual participating life | Debt securities |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 23,513 | 26,715
Individual participating life | Equity securities |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 4,836 | 5,374
Individual participating life | Mortgages and loans |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 10,802 | 9,559
Individual participating life | Investment properties |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 6,345 | 5,932
Individual participating life | Other |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 4,885 | 4,801
Individual non-participating life and health |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 48,534 | 50,472
Individual non-participating life and health | Debt securities |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 17,438 | 23,716
Individual non-participating life and health | Equity securities |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 1,804 | 1,947
Individual non-participating life and health | Mortgages and loans |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 15,029 | 13,885
Individual non-participating life and health | Investment properties |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 3,103 | 2,614
Individual non-participating life and health | Other |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 11,160 | 8,310
Group life and health |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 21,862 | 20,953
Group life and health | Debt securities |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 7,057 | 7,598
Group life and health | Equity securities |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 24 | 30
Group life and health | Mortgages and loans |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 10,412 | 9,556
Group life and health | Investment properties |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 117 | 92
Group life and health | Other |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 4,252 | 3,677
Individual annuities |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 15,248 | 17,696
Individual annuities | Debt securities |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 7,822 | 10,314
Individual annuities | Equity securities |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 34 | 40
Individual annuities | Mortgages and loans |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 6,573 | 6,435
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 | 819 | 907
Group annuities |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 21,168 | 20,250
Group annuities | Debt securities |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 9,046 | 9,612
Group annuities | Equity securities |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 100 | 111
Group annuities | Mortgages and loans |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 10,444 | 9,198
Group annuities | Investment properties |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 109 | 24
Group annuities | Other |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 1,469 | 1,305
Equity and other |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 48,421 | 43,622
Equity and other | Debt securities |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 11,026 | 10,772
Equity and other | Equity securities |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 350 | 1,611
Equity and other | Mortgages and loans |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 3,001 | 3,059
Equity and other | Investment properties |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | 428 | 447
Equity and other | Other |  |
Disclosure of types of insurance contracts [line items] |  |
Total general fund assets | $ 33,616 | $ 27,733

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