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Goodwill and Other Intangibles - Changes in the carrying value of goodwill (Details) - USD ($) $ in Millions |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jul. 03, 2023 | Sep. 30, 2023 | Dec. 31, 2023
Goodwill [Line Items] |  |  |
Goodwill, beginning balance |  |  | $ 246
Goodwill, impairment loss |  | $ (26) |
Goodwill, ending balance |  |  | 305
Verikai, Inc. |  |  |
Goodwill [Line Items] |  |  |
Goodwill, impairment loss |  |  | (26)
Crop Risk Services |  |  |
Goodwill [Line Items] |  |  |
Goodwill acquired during period | $ 85 |  | $ 85

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