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Discontinued Operations - Narrative (Details) - USD ($) $ in Millions |  | 12 Months Ended
--- | --- | ---
May 31, 2021 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Investments accounted for using the equity method |  | $ 1,517 | $ 1,235 |
Net investment income |  | 730 | 461 | $ 532
Annuity subsidiaries |  |  |  |
Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Net proceeds from sale of businesses | $ 3,570 |  |  |
Post-closing adjustments | 34 |  |  |
Gain on sale of discontinued operations, net of tax | 656 |  |  |
Real estate-related investments | Continuing operations |  |  |  |
Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Net investment income |  | $ 51 | $ 49 | $ 37
Great American Life Insurance Company | Equity in earnings of partnerships and similar investments |  |  |  |
Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Investments accounted for using the equity method | 480 |  |  |
Great American Life Insurance Company | Directly owned real estate |  |  |  |
Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Directly owned real estate | $ 100 |  |  |

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