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Total Invested Assets and Related Net Investment Income - Carrying Value and Fair Value of Financial Assets and Other Financial Liabilities (Details) - CAD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Disclosure of fair value measurement of assets [line items] |  |
Carrying value | $ 165,557 | $ 173,735
Fair value | 160,982 | 177,789
Invested assets | 177,292 | 184,522
Investment properties | 10,102 | 9,109
Other invested assets - non-financial assets | 1,633 | 1,678
Cash, cash equivalents and short-term securities |  |
Disclosure of fair value measurement of assets [line items] |  |
Carrying value | 11,219 | 12,278
Fair value | 11,219 | 12,278
Debt securities |  |
Disclosure of fair value measurement of assets [line items] |  |
Carrying value | 75,902 | 88,727
Debt securities | Fair value through profit or loss |  |
Disclosure of fair value measurement of assets [line items] |  |
Carrying value | 62,757 | 75,998
Fair value | 62,757 | 75,998
Debt securities | Available- for-sale |  |
Disclosure of fair value measurement of assets [line items] |  |
Carrying value | 13,145 | 12,729
Fair value | 13,145 | 12,729
Equity securities |  |
Disclosure of fair value measurement of assets [line items] |  |
Carrying value | 7,148 | 9,113
Equity securities | Fair value through profit or loss |  |
Disclosure of fair value measurement of assets [line items] |  |
Carrying value | 6,824 | 7,538
Fair value | 6,824 | 7,538
Equity securities | Available- for-sale |  |
Disclosure of fair value measurement of assets [line items] |  |
Carrying value | 324 | 1,575
Fair value | 324 | 1,575
Mortgages and loans |  |
Disclosure of fair value measurement of assets [line items] |  |
Carrying value | 56,261 | 51,692
Fair value | 51,850 | 55,756
Derivative assets |  |
Disclosure of fair value measurement of assets [line items] |  |
Carrying value | 2,095 | 1,583
Fair value | 2,095 | 1,583
Other invested assets | Fair value through profit or loss |  |
Disclosure of fair value measurement of assets [line items] |  |
Carrying value | 5,542 | 4,435
Fair value | 5,542 | 4,435
Other invested assets | Available- for-sale |  |
Disclosure of fair value measurement of assets [line items] |  |
Carrying value | 996 | 781
Fair value | 996 | 781
Other invested assets - Collateralized Loan Obligations |  |
Disclosure of fair value measurement of assets [line items] |  |
Carrying value | 3,044 | 1,865
Fair value | 2,880 | 1,855
Policy loans |  |
Disclosure of fair value measurement of assets [line items] |  |
Carrying value | 3,350 | 3,261
Fair value | 3,350 | 3,261
SPPI | Debt securities, available-for-sale |  |
Disclosure of fair value measurement of assets [line items] |  |
Carrying value | 12,829 | 12,604
SPPI | Mortgages and loans, supporting insurance contract liabilities |  |
Disclosure of fair value measurement of assets [line items] |  |
Carrying value | 48,614 | 51,249
SPPI | Mortgages and loans, not supporting insurance contract liabilities |  |
Disclosure of fair value measurement of assets [line items] |  |
Carrying value | $ 3,229 | $ 4,499

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