Summary of Significant Accounting Policies - Stock-Based Compensation (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
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| Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] | |||
| Stock-based compensation | $ 121 | $ 99 | $ 93 |
| Personnel | |||
| Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] | |||
| Stock-based compensation | 120 | 96 | 88 |
| General and administrative | |||
| Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] | |||
| Stock-based compensation | 1 | 3 | 5 |
| Tripadvisor | |||
| Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] | |||
| Stock-based compensation | 120 | ||
| Capitalized Stock Based Compensation | $ 13 | $ 10 | $ 10 |
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- Definition stock-based compensation capitalized as part of website development projects No definition available.
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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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