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Discontinued Operations - Impact of the sale of the annuity businesses (Details) - USD ($) $ in Millions | May 31, 2021 | Mar. 31, 2022 | Dec. 31, 2021
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Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Net investment in annuity businesses sold, excluding AOCI |  | $ 4,835 | $ 5,012
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 |  |
Net investment in annuity businesses sold, excluding AOCI | 2,867 |  |
Reclassify net deferred tax asset | 199 |  |
Realized gains (losses) on subsidiaries | 895 |  |
Tax liabilities triggered by pending sale in the first quarter of 2021 | 41 |  |
Other | (1) |  |
Total income tax expense | 239 |  |
Gain on sale, net of tax | $ 656 |  |

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