Discontinued operations and assets classified as held for sale - Net cash provided by (used for) discontinued operations (Detail) - EUR (€) € in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Disclosure of analysis of single amount of discontinued operations [abstract] | |||
| Net cash provided by (used for) operating activities | € (10) | € (13) | € 123 |
| Net cash provided by (used for) investing activities | 0 | 0 | 0 |
| Net cash provided by (used for) discontinued operations | € (10) | € (13) | € 123 |