Note 26 Retained earnings and other reserves (Details) - EUR (€) € in Millions |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Disclosure of Retained earnings and other reserves [Line Items] | ||
| Retained earnings | € 51,441 | € 46,346 |
| Other reserves | (600) | 203 |
| Total retained earnings revaluation reserves and other reserves | € 50,840 | € 46,550 |
| X | ||||||||||
- Definition Disclosure of Retained earnings and other reserves No definition available.
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| X | ||||||||||
- Definition Total retained earnings revaluation reserves and other reserves No definition available.
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| X | ||||||||||
- Definition A component of equity representing reserves within equity, not including retained earnings. [Refer: Retained earnings] Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition A component of equity representing the entity's cumulative undistributed earnings or deficit. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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