Employees - Summary of Status of Performance Share Plans, Related Changes and Share Award Value Information (Details) |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2025
share
€ / shares
|
Dec. 31, 2024
share
€ / shares
|
Dec. 31, 2023
share
€ / shares
|
|
| Disclosure of Share Based Compensation Plans [Line Items] | |||
| Fair value per share award during the year (in euro per share) | € / shares | € 52.20 | € 46.19 | € 45.71 |
| Performance Share Plans | |||
| Disclosure of Share Based Compensation Plans [Line Items] | |||
| Outstanding at 1 January (in shares) | 19,112,255 | 21,329,938 | 17,923,890 |
| Awarded (in shares) | 5,433,948 | 7,508,412 | 7,479,544 |
| Vested (in shares) | (6,413,314) | (6,296,695) | (2,021,439) |
| Forfeited (in shares) | (2,504,504) | (3,429,400) | (2,052,057) |
| Outstanding at 31 December (in shares) | 15,628,385 | 19,112,255 | 21,329,938 |