Equity - Schedule of changes in currency translation reserve (Details) - EUR (€) € in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Disclosure of equity [Line Items] | |||
| Opening balance | € 687 | € 2,767 | |
| Closing balance | 3,080 | 687 | € 2,767 |
| Currency translation reserve | |||
| Disclosure of equity [Line Items] | |||
| Opening balance | (1,986) | (2,527) | (2,395) |
| Unrealised revaluations | 637 | (222) | 183 |
| Realised gains/losses transferred to the statement of profit or loss | 1 | ||
| Exchange rate differences | (1,425) | 763 | (316) |
| Closing balance | € (2,774) | € (1,986) | € (2,527) |