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Acquisitions - Allocation (Detail) - USD ($) $ in Millions | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Purchase price allocation |  |
Goodwill | $ 9,398 | $ 9,323
2023 Business Acquisitions [Member] |  |
Purchase price allocation |  |
Property and equipment | 22 |
Goodwill | 76 |
Other intangible assets | $ 46 |

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