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Investments - Realized capital gains and losses by asset type (Details) - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2023 | Mar. 31, 2022
Realized capital gains and losses by asset type |  |
Net gains (losses) on investments and derivatives | $ 14 | $ (267)
Fixed income securities |  |
Realized capital gains and losses by asset type |  |
Net gains (losses) on investments and derivatives | (136) | (152)
Equity securities |  |
Realized capital gains and losses by asset type |  |
Net gains (losses) on investments and derivatives | 167 | (347)
Mortgage loans |  |
Realized capital gains and losses by asset type |  |
Net gains (losses) on investments and derivatives | 0 | (1)
Limited partnership interests |  |
Realized capital gains and losses by asset type |  |
Net gains (losses) on investments and derivatives | 22 | (101)
Derivatives |  |
Realized capital gains and losses by asset type |  |
Net gains (losses) on investments and derivatives | (52) | 318
Other investments |  |
Realized capital gains and losses by asset type |  |
Net gains (losses) on investments and derivatives | $ 13 | $ 16

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