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Investments - Schedule of Changes in Unrealized Appreciation (Depreciation) of Available for Sale Securities and Other Investments (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Increase (decrease) in unrealized appreciation (depreciation) of investments | $ (1,055) | $ (2,279) | $ (2,257) | $ 2,726
Equity Securities, FV-NI, Unrealized Gain (Loss) [Abstract] |  |  |  |
Net gains (losses) recognized during the period on equity securities and other investments | 105 | 105 | 276 | 205
Less: Net gains (losses) recognized during the period on equity securities and other investments sold during the period | 28 | (4) | 67 | 85
Unrealized gains (losses) recognized during the reporting period on equity securities and other investments still held at the reporting date | 77 | 109 | 209 | 120
Corebridge Financial Inc |  |  |  |
Equity Securities, FV-NI, Unrealized Gain (Loss) [Abstract] |  |  |  |
Unrealized gains (losses) recognized during the reporting period on equity securities and other investments still held at the reporting date | 65 |  | 65 |
Continuing Operations, Excluding Held-For-Sale |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Increase (decrease) in unrealized appreciation (depreciation) of investments | (24) | (180) | (156) | 829
Fixed maturity securities | Continuing Operations, Excluding Held-For-Sale |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Increase (decrease) in unrealized appreciation (depreciation) of investments | 15 | (180) | (117) | 829
Other investments | Continuing Operations, Excluding Held-For-Sale |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Increase (decrease) in unrealized appreciation (depreciation) of investments | (39) | 0 | (39) | 0
Equities |  |  |  |
Equity Securities, FV-NI, Unrealized Gain (Loss) [Abstract] |  |  |  |
Net gains (losses) recognized during the period on equity securities and other investments | (4) | 41 | 84 | 62
Less: Net gains (losses) recognized during the period on equity securities and other investments sold during the period | 3 | (12) | 43 | 76
Unrealized gains (losses) recognized during the reporting period on equity securities and other investments still held at the reporting date | (7) | 53 | 41 | (14)
Other invested assets |  |  |  |
Equity Securities, FV-NI, Unrealized Gain (Loss) [Abstract] |  |  |  |
Net gains (losses) recognized during the period on equity securities and other investments | 109 | 64 | 192 | 143
Less: Net gains (losses) recognized during the period on equity securities and other investments sold during the period | 25 | 8 | 24 | 9
Unrealized gains (losses) recognized during the reporting period on equity securities and other investments still held at the reporting date | $ 84 | $ 56 | $ 168 | $ 134

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- Definition Amount of realized gain (loss) from sale of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(3)(d)(1)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483586/944-220-S99-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 321 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479536/321-10-50-4 + Details
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