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Discontinued Operations - Assets and liabilities of businesses disposed (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022 | May 31, 2021
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Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Reclassify AOCI | $ (319) | $ (543) |
Equity attributable to parent | $ 4,258 | $ 4,052 |
Annuity subsidiaries |  |  |
Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Cash and cash equivalents |  |  | $ 2,060
Investments |  |  | 38,323
Recoverables from reinsurers |  |  | 6,748
Other assets |  |  | 2,152
Total assets of discontinued annuity operations |  |  | 49,283
Annuity benefits accumulated |  |  | 43,690
Other liabilities |  |  | 1,813
Total liabilities of discontinued annuity operations |  |  | 45,503
Reclassify AOCI |  |  | (913)
Equity attributable to parent |  |  | $ 2,867

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