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Discontinued Operations - Impact of the sale of the annuity businesses (Details) - USD ($) $ in Millions |  | 5 Months Ended | 12 Months Ended
--- | --- | --- | ---
May 31, 2021 | May 31, 2021 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Cash proceeds from sale of businesses |  |  | $ 0 | $ 0 | $ 3,581
Equity attributable to parent |  |  | $ 4,258 | $ 4,052 |
Annuity subsidiaries |  |  |  |  |
Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Cash proceeds from sale of businesses | $ 3,571 |  |  |  |
Sale related expenses | (8) |  |  |  |
Total net proceeds | 3,563 |  |  |  |
Equity attributable to parent | 2,867 | $ 2,867 |  |  |
Reclassify net deferred tax asset | 199 |  |  |  |
Realized gains (losses) on subsidiaries | 895 |  |  |  |
Tax liabilities triggered by the sale | 41 |  |  |  |
Other tax expense on gain on sale of subsidiaries | (1) |  |  |  |
Total income tax expense on gain on sale of subsidiaries | 239 |  |  |  |
Gain on sale of discontinued operations, net of tax | $ 656 | $ 656 |  |  |

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