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Investments - Realized capital gains and losses by asset type (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Realized capital gains and losses by asset type |  |  |  |
Net gains (losses) on investments and derivatives | $ (167) | $ 105 | $ (1,167) | $ 818
Fixed income securities |  |  |  |
Realized capital gains and losses by asset type |  |  |  |
Net gains (losses) on investments and derivatives | (166) | 86 | (644) | 355
Equity securities |  |  |  |
Realized capital gains and losses by asset type |  |  |  |
Net gains (losses) on investments and derivatives | (239) | 6 | (1,222) | 322
Mortgage loans |  |  |  |
Realized capital gains and losses by asset type |  |  |  |
Net gains (losses) on investments and derivatives | 1 | 0 | 0 | 19
Limited partnership interests |  |  |  |
Realized capital gains and losses by asset type |  |  |  |
Net gains (losses) on investments and derivatives | (49) | (15) | (224) | 1
Derivatives |  |  |  |
Realized capital gains and losses by asset type |  |  |  |
Net gains (losses) on investments and derivatives | 299 | 46 | 889 | 54
Other investments |  |  |  |
Realized capital gains and losses by asset type |  |  |  |
Net gains (losses) on investments and derivatives | $ (13) | $ (18) | $ 34 | $ 67

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