Property and equipment - Additional Information (Details) - EUR (€) € in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Disclosure of detailed information about property, plant and equipment [line items] | ||
| Leasehold improvements not placed into service | € 7 | € 4 |
| Property, plant and equipment | ||
| Disclosure of detailed information about property, plant and equipment [line items] | ||
| Impairment charges for lease right-of-use assets | € 18 | € 49 |