Summary of Significant Accounting Policies (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
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| Foreign currency exchange gain (loss) | $ (3) | $ (5) | $ (9) |
| Advertising expense | $ 729 | $ 705 | $ 576 |
| Tripadvisor | |||
| Customer invoices period | 30 days | ||
| X | ||||||||||
- Definition The length of time that customer invoices are generally due after the time of invoicing. No definition available.
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| X | ||||||||||
- Definition Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount, before tax, of realized and unrealized gain (loss) from foreign currency transaction. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Details
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