Financial Instruments - Additional Information (Detail) - EUR (€) € in Millions |
Jun. 24, 2025 |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|---|
| Disclosure of detailed information about financial instruments [abstract] | |||
| Proceeds from convert into euro to usd | € 1,000 | ||
| Fair value of cross currency swaps | € 9 | ||
| Fair value of the borrowings | € 6,058 | € 4,137 | |
| Fair value of the fixed asset suppliers | € 434 | € 592 |