Restructuring - Net Restructuring by Type (Detail) - EUR (€) € in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Restructuring [Abstract] | |||
| Restructuring – Staff related | € (13) | € (5) | € 178 |
| thereof: | |||
| Termination Benefits | (15) | (6) | 176 |
| Retention Acceleration | 1 | 0 | 1 |
| Social Security | 1 | 1 | 1 |
| Restructuring – Non Staff related | (1) | 1 | 42 |
| Total Net Restructuring Charges | € (15) | € (3) | € 220 |