Finance debt - Currency of long-term debt (Details) - EUR (€) € in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Borrowings | ||
| Borrowings | € 28,502 | € 30,390 |
| Short term debt | ||
| Borrowings | ||
| Borrowings | 4,929 | 4,238 |
| Short term debt | Euro | ||
| Borrowings | ||
| Borrowings | 4,449 | 3,518 |
| Short term debt | U.S. dollars | ||
| Borrowings | ||
| Borrowings | 437 | 707 |
| Short term debt | Other Currency [Member] | ||
| Borrowings | ||
| Borrowings | 43 | 13 |
| Long term debt and current portion of long-term debt | ||
| Borrowings | ||
| Borrowings | 23,573 | 26,152 |
| Long term debt and current portion of long-term debt | Euro | ||
| Borrowings | ||
| Borrowings | 16,959 | 19,547 |
| Long term debt and current portion of long-term debt | U.S. dollars | ||
| Borrowings | ||
| Borrowings | 6,612 | 6,603 |
| Long term debt and current portion of long-term debt | Other Currency [Member] | ||
| Borrowings | ||
| Borrowings | € 2 | € 2 |