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Capital Management - Schedule of Total Capital (Details) - CAD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | --- | ---
Entity Location [Line Items] |  |  |
Equity | $ 29,377 | $ 28,073 |
Total capital | 36,253 | 34,698 |
Subordinated debt |  |  |
Entity Location [Line Items] |  |  |
Borrowings | 6,676 | 6,425 |
Innovative capital instruments |  |  |
Entity Location [Line Items] |  |  |
Borrowings | 200 | 200 |
Shares |  |  |
Entity Location [Line Items] |  |  |
Equity | 25,211 | 24,075 |
Participating policyholders |  |  |
Entity Location [Line Items] |  |  |
Equity | 1,837 | 1,700 | $ 1,368
Non-controlling interests’ equity |  |  |
Entity Location [Line Items] |  |  |
Equity | 90 | 59 | 25
Preferred shares | Shares |  |  |
Entity Location [Line Items] |  |  |
Equity | $ 2,239 | $ 2,239 | $ 2,257

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