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Investments - Realized capital gains and losses by transaction type (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Investments [Abstract] |  |  |  |
Sales | $ (175) | $ 80 | $ (605) | $ 441
Credit losses | (6) | (12) | (30) | 2
Valuation change of equity investments | (285) | (9) | (1,421) | 321
Valuation change and settlements of derivatives | 299 | 46 | 889 | 54
Net gains (losses) on investments and derivatives | $ (167) | $ 105 | $ (1,167) | $ 818

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- Definition Amount of unrealized and realized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity), investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) and investment in debt security measured at fair value with change in fair value recognized in net income (trading). + References No definition available. + Details
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- Definition Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5618551-113959 + Details
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