Investments accounted for using equity method - Additional Information (Detail) € in Millions |
12 Months Ended |
|---|---|
|
Dec. 31, 2025
EUR (€)
| |
| Disclosure of joint ventures [abstract] | |
| Capital contribution and subscription agreements joint ventures | In connection with the Company’s investments in Horizons 3 and Horizons 4 it entered into capital contribution and subscription agreements that require it to fund its 50% share of the amounts due to maintain its respective 50% interest in the joint ventures. |
| Additional contributions to joint ventures | € 7 |
| Revenue sharing percentage | 50.00% |
| Acquisition-date fair value of the equity-method investments | € 72 |