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Goodwill - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2023 | Dec. 31, 2022 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Goodwill |  |  |  |  |
Goodwill impairment loss | $ 6,800 | $ 17,600 |  |  |
Corporate and Other |  |  |  |  |
Goodwill |  |  |  |  |
Goodwill impairment loss |  |  | $ 94 | $ 94 | $ 94

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