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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, 2021 | Dec. 31, 2020
--- | --- | ---
Disclosure of fair value measurement of assets [line items] |  |
Financial assets | $ 173,735 | $ 168,785
Financial assets, at fair value | 177,789 | 175,070
Invested assets | 184,522 | 177,912
Investment properties | 9,109 | 7,516
Other invested assets - non-financial assets | 1,678 | 1,611
Cash, cash equivalents and short-term securities |  |
Disclosure of fair value measurement of assets [line items] |  |
Financial assets | 12,278 | 13,527
Financial assets, at fair value | 12,278 | 13,527
Debt securities |  |
Disclosure of fair value measurement of assets [line items] |  |
Financial assets | 88,727 | 89,089
Debt securities | Fair value through profit or loss |  |
Disclosure of fair value measurement of assets [line items] |  |
Financial assets | 75,998 | 77,834
Financial assets, at fair value | 75,998 | 77,834
Debt securities | Available- for-sale |  |
Disclosure of fair value measurement of assets [line items] |  |
Financial assets | 12,729 | 11,255
Financial assets, at fair value | 12,729 | 11,255
Equity securities |  |
Disclosure of fair value measurement of assets [line items] |  |
Financial assets | 9,113 | 6,631
Equity securities | Fair value through profit or loss |  |
Disclosure of fair value measurement of assets [line items] |  |
Financial assets | 7,538 | 6,369
Financial assets, at fair value | 7,538 | 6,369
Equity securities | Available- for-sale |  |
Disclosure of fair value measurement of assets [line items] |  |
Financial assets | 1,575 | 262
Financial assets, at fair value | 1,575 | 262
Mortgages and loans |  |
Disclosure of fair value measurement of assets [line items] |  |
Financial assets | 51,692 | 49,946
Financial assets, at fair value | 55,756 | 56,231
Derivative assets |  |
Disclosure of fair value measurement of assets [line items] |  |
Financial assets | 1,583 | 2,160
Financial assets, at fair value | 1,583 | 2,160
Other invested assets | Fair value through profit or loss |  |
Disclosure of fair value measurement of assets [line items] |  |
Financial assets | 4,435 | 3,339
Financial assets, at fair value | 4,435 | 3,339
Other invested assets | Available- for-sale |  |
Disclosure of fair value measurement of assets [line items] |  |
Financial assets | 781 | 828
Financial assets, at fair value | 781 | 828
Collateralized Loan Obligation |  |
Disclosure of fair value measurement of assets [line items] |  |
Financial assets | 1,865 | 0
Financial assets, at fair value | 1,855 | 0
Policy loans |  |
Disclosure of fair value measurement of assets [line items] |  |
Financial assets | 3,261 | 3,265
Financial assets, at fair value | 3,261 | 3,265
SPPI | Debt securities, available-for-sale |  |
Disclosure of fair value measurement of assets [line items] |  |
Financial assets | 12,604 | 11,159
SPPI | Mortgages and loans, supporting insurance contract liabilities |  |
Disclosure of fair value measurement of assets [line items] |  |
Financial assets | 51,249 | 51,480
SPPI | Mortgages and loans, not supporting insurance contract liabilities |  |
Disclosure of fair value measurement of assets [line items] |  |
Financial assets | $ 4,499 | $ 4,741

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