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Insurance Contract Liabilities and Investment Contract Liabilities - Investment Contract Liabilities (Details) - CAD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Disclosure of financial liabilities [line items] |  |
Investment contracts liabilities | $ 3,368 | $ 3,189
Individual participating life |  |
Disclosure of financial liabilities [line items] |  |
Investment contracts liabilities | 4 | 5
Individual non-participating life and health |  |
Disclosure of financial liabilities [line items] |  |
Investment contracts liabilities | 237 | 271
Individual annuities |  |
Disclosure of financial liabilities [line items] |  |
Investment contracts liabilities | 2,525 | 2,725
Group annuities |  |
Disclosure of financial liabilities [line items] |  |
Investment contracts liabilities | 602 | 188
Investment contract liabilities with DPF |  |
Disclosure of financial liabilities [line items] |  |
Investment contracts liabilities | 872 | 497
Investment contract liabilities without DPF | Measured at amortized cost |  |
Disclosure of financial liabilities [line items] |  |
Investment contracts liabilities | 2,487 | 2,690
Investment contract liabilities without DPF | Measured at fair value |  |
Disclosure of financial liabilities [line items] |  |
Investment contracts liabilities | 9 | 2
Canada |  |
Disclosure of financial liabilities [line items] |  |
Investment contracts liabilities | 2,487 | 2,690
Canada | Individual participating life |  |
Disclosure of financial liabilities [line items] |  |
Investment contracts liabilities | 0 | 0
Canada | Individual non-participating life and health |  |
Disclosure of financial liabilities [line items] |  |
Investment contracts liabilities | 0 | 0
Canada | Individual annuities |  |
Disclosure of financial liabilities [line items] |  |
Investment contracts liabilities | 2,487 | 2,690
Canada | Group annuities |  |
Disclosure of financial liabilities [line items] |  |
Investment contracts liabilities | 0 | 0
Asia |  |
Disclosure of financial liabilities [line items] |  |
Investment contracts liabilities | 838 | 457
Asia | Individual participating life |  |
Disclosure of financial liabilities [line items] |  |
Investment contracts liabilities | 0 | 0
Asia | Individual non-participating life and health |  |
Disclosure of financial liabilities [line items] |  |
Investment contracts liabilities | 235 | 269
Asia | Individual annuities |  |
Disclosure of financial liabilities [line items] |  |
Investment contracts liabilities | 1 | 0
Asia | Group annuities |  |
Disclosure of financial liabilities [line items] |  |
Investment contracts liabilities | 602 | 188
Corporate |  |
Disclosure of financial liabilities [line items] |  |
Investment contracts liabilities | 43 | 42
Corporate | Individual participating life |  |
Disclosure of financial liabilities [line items] |  |
Investment contracts liabilities | 4 | 5
Corporate | Individual non-participating life and health |  |
Disclosure of financial liabilities [line items] |  |
Investment contracts liabilities | 2 | 2
Corporate | Individual annuities |  |
Disclosure of financial liabilities [line items] |  |
Investment contracts liabilities | 37 | 35
Corporate | Group annuities |  |
Disclosure of financial liabilities [line items] |  |
Investment contracts liabilities | $ 0 | $ 0

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