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Segment Information - Segment Information (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Segment Reporting Information [Line Items] |  |  |
Revenues | $ (1,373) | $ (723) | $ (848)
Total expenses | 733 | 536 | 465
Equity in earnings (losses) of investees | 28 | (39) | 94
Less: Segment provision (benefit) for income taxes | (93) | 11 | 58
Selected components of segment adjusted operating income: |  |  |
Net investment income | 365 | 269 | 269
Interest expense | 90 | 81 | 87
Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | (931) | (869) | (816)
Total expenses | 513 | 378 | 141
Equity in earnings (losses) of investees | 87 | (51) | 144
Less: Segment provision (benefit) for income taxes | (119) | 33 | 116
Selected components of segment adjusted operating income: |  |  |
Net investment income | 370 | 278 | 280
Insurance | Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | (855) | (757) | (733)
Total expenses | 435 | 259 | 33
Equity in earnings (losses) of investees | 82 | (51) | 144
Less: Segment provision (benefit) for income taxes | (119) | 34 | 122
Segment adjusted operating income (loss) | 621 | 413 | 722
Selected components of segment adjusted operating income: |  |  |
Net investment income | 370 | 278 | 280
Interest expense | 0 | 1 | 0
Non-cash compensation and operating expenses | 38 | 41 | 56
Insurance | Operating Segments Excluding Intersegment Elimination |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | (845) | (748) | (724)
Insurance | Intersegment revenues |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 10 | 9 | 9
Asset Management | Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | (76) | (112) | (83)
Total expenses | 78 | 119 | 108
Equity in earnings (losses) of investees | 5 | 0 | 0
Less: Segment provision (benefit) for income taxes | 0 | (1) | (6)
Segment adjusted operating income (loss) | 3 | (6) | (19)
Selected components of segment adjusted operating income: |  |  |
Net investment income | 0 | 0 | 0
Interest expense | 1 | 1 | 1
Non-cash compensation and operating expenses | 8 | 18 | 17
Asset Management | Operating Segments Excluding Intersegment Elimination |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | (49) | (78) | (73)
Asset Management | Intersegment revenues |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | $ 27 | $ 34 | $ 10

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