Non-current and current financial investments - Current financial investments (Details) € in Thousands |
Dec. 31, 2025
EUR (€)
|
Dec. 31, 2025
USD ($)
|
Dec. 31, 2024
EUR (€)
|
|---|---|---|---|
| Disclosure of detailed information about financial instruments [line items] | |||
| Total current financial investments | € 2,910,180 | € 3,053,334 | |
| U.S. Dollars | |||
| Disclosure of detailed information about financial instruments [line items] | |||
| Total current financial investments | $ | $ 2,119,000,000 | ||
| Money market funds. [member] | |||
| Disclosure of detailed information about financial instruments [line items] | |||
| Total current financial investments | 1,472,031 | 1,484,599 | |
| Treasury bills [member] | |||
| Disclosure of detailed information about financial instruments [line items] | |||
| Total current financial investments | 255,078 | ||
| Term Depsits [member] | |||
| Disclosure of detailed information about financial instruments [line items] | |||
| Total current financial investments | € 1,438,149 | € 1,313,657 |