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Commitments and Contingencies - Narrative (Details) $ in Millions | Aug. 17, 2020 shares | Aug. 04, 2020 director lawsuit | Jun. 30, 2022 USD ($) | Dec. 31, 2021 USD ($)
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Other Commitments [Line Items] |  |  |  |
Estimated litigation liability | $ |  |  | $ 16 | $ 12
Number of Board of Directors on the litigation committee | director |  | 3 |  |
Matter of FGL Holdings |  |  |  |
Other Commitments [Line Items] |  |  |  |
Number of lawsuits filed | lawsuit |  | 2 |  |
Number of shares in which statutory appraisal rights have been claimed (in shares) | shares | 12,000,000 |  |  |

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