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Capital Stock - Non-redeemable Non-controlling Interests (Details) € / shares in Units, € in Millions, $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 EUR (€) € / shares | Dec. 31, 2023 USD ($) | Dec. 31, 2024
Trivago |  |  |
Noncontrolling Interest [Line Items] |  |  |
Payments of capital distribution | € | € 184 |  |
Dividends payable (in dollars per share) | € / shares | € 0.53 |  |
Third-Party | Trivago |  |  |
Noncontrolling Interest [Line Items] |  |  |
Payments of capital distribution | $ |  | $ 78 |
Trivago |  |  |
Noncontrolling Interest [Line Items] |  |  |
Ownership interest percentage | 60.00% |  | 59.50%

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- Details
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