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Stockholders’ Equity - Trivago Special Dividend (Details) - trivago - Related Party € / shares in Units, € in Millions, $ in Millions | Nov. 06, 2023 EUR (€) | Nov. 01, 2023 EUR (€) | Sep. 30, 2023 € / shares | Sep. 30, 2023 USD ($)
--- | --- | --- | --- | ---
Dividends Payable [Line Items] |  |  |  |
Dividends payable, amount per share | € / shares |  |  | € 0.53 |
Dividends payable | $ |  |  |  | $ 78
Forecast |  |  |  |
Dividends Payable [Line Items] |  |  |  |
Payments of capital distribution | € 184 |  |  |
Forecast | Subsequent Event |  |  |  |
Dividends Payable [Line Items] |  |  |  |
Shareholder approval amount |  | € 168 |  |

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