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Segment Information - Segment Information (Details) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2022 USD ($) segment | Mar. 31, 2021 USD ($)
Segment Reporting [Abstract] |  |
Number of reportable segments | segment | 2 |
Segment Reporting Information [Line Items] |  |
Segment equity in earnings (losses) of investees | $ (11) | $ 9
Operating Segments |  |
Segment Reporting Information [Line Items] |  |
Segment equity in earnings (losses) of investees | (1) | 19
Segment adjusted operating income (loss) | 133 | 72
Insurance | Operating Segments |  |
Segment Reporting Information [Line Items] |  |
Revenue, including adjustments | 276 | 177
Segment revenues | 278 | 179
Segment expenses | 122 | 106
Segment equity in earnings (losses) of investees | (1) | 19
Less: Segment provision (benefit) for income taxes | 22 | 13
Segment adjusted operating income (loss) | 133 | 79
Insurance | Intersegment Eliminations |  |
Segment Reporting Information [Line Items] |  |
Revenue, including adjustments | 2 | 2
Asset Management | Operating Segments |  |
Segment Reporting Information [Line Items] |  |
Revenue, including adjustments | 30 | 18
Segment revenues | 39 | 20
Segment expenses | 39 | 29
Segment equity in earnings (losses) of investees | 0 | 0
Less: Segment provision (benefit) for income taxes | 0 | (2)
Segment adjusted operating income (loss) | 0 | (7)
Asset Management | Intersegment Eliminations |  |
Segment Reporting Information [Line Items] |  |
Revenue, including adjustments | $ 9 | $ 2

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