Risk management - Schedule of regulatory capital alternative standard (Details) - EUR (€) € in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
|---|---|---|---|---|
| Risk Management [Abstract] | ||||
| Common Equity Tier I | € 84,739 | € 79,800 | € 76,741 | |
| Share capital | 7,345 | 7,576 | 8,092 | € 8,397 |
| (-) Treasure shares and own shares financed | (1,892) | (1,694) | (2,847) | |
| Share Premium | 36,792 | 40,079 | 44,373 | |
| Reserves | 84,663 | 76,608 | 68,721 | |
| Other retained earnings | (39,918) | (38,617) | (35,038) | |
| Minority interests | 9,037 | 8,479 | 6,899 | |
| Profit net of dividends | 10,576 | 9,431 | 8,307 | |
| Deductions | (21,863) | (22,061) | (21,766) | |
| Goodwill and intangible assets | (15,037) | (15,957) | (17,220) | |
| Others | (6,826) | (6,104) | (4,546) | |
| Additional Tier I | 9,645 | 10,371 | 9,002 | |
| Eligible instruments AT1 | 8,937 | 9,725 | 8,461 | |
| AT1-excesses-subsidiaries | 708 | 645 | 541 | |
| Tier II | 17,460 | 18,418 | 16,497 | |
| Eligible instruments T2 | 17,754 | 18,869 | 17,101 | |
| Excess IRB provision on PE | 0 | 0 | 76 | |
| T2-excesses - subsidiaries | (294) | (450) | (680) | |
| Total eligible capital | € 111,845 | € 108,589 | € 102,240 |
| X | ||||||||||
- Definition The nominal value of capital issued. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition The amount received or receivable from the issuance of the entity's shares in excess of nominal value. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition The amount of capital reserves required for computation of Common Equity Tier I (CET I) equity. No definition available.
|
| X | ||||||||||
- Definition Amount of Common Equity Tier 1 Risk-based Capital required to be categorized as adequately capitalized under regulatory framework for prompt corrective action. Also known as "ordinary eligible capital." No definition available.
|
| X | ||||||||||
- Definition The amount of total eligible capital as defined in the regulations. No definition available.
|
| X | ||||||||||
- Definition The amount of adjustments to equity required for computation of Common Equity Tier I (CET I) equity. No definition available.
|
| X | ||||||||||
- Definition The amount of other adjustments to equity required for computation of Common Equity Tier I (CET I) equity. No definition available.
|
| X | ||||||||||
- Definition The amount of eligible instruments, at Additional Tier One level, that is combined with Tier One excesses, residual value of dividends and other deductions to determine Additional Tier One capital. No definition available.
|
| X | ||||||||||
- Definition The amount by which the company's Tier 1 Risk Based Capital exceeds the minimum required for capital adequacy purposes attributable to subsidiaries. No definition available.
|
| X | ||||||||||
- Definition The amount by which the company's Tier 2 Risk Based Capital exceeds the minimum required for capital adequacy purposes attributable to subsidiaries. No definition available.
|
| X | ||||||||||
- Definition Tier 2 risk-based capital as defined in the international regulations. No definition available.
|
| X | ||||||||||
- Definition The amount of general fund and surplus loans loss provision as specified by institutional review board. No definition available.
|
| X | ||||||||||
- Definition The amount of intangible assets and goodwill, net of residual value, held by the entity. No definition available.
|
| X | ||||||||||
- Definition The amount of non-controlling interests required for computation of Common Equity Tier 1 (CET I) equity. No definition available.
|
| X | ||||||||||
- Definition A component of equity representing the entity's cumulative other comprehensive undistributed earnings or deficit. No definition available.
|
| X | ||||||||||
- Definition The total of income less expenses, excluding the components of other comprehensive income and net of dividends. No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The amount of liabilities for preference shares and participating preference securities that are subordinate to other liabilities with respect to claims and included within Tier 2 Capital. No definition available.
|
| X | ||||||||||
- Definition The amount by which the company's Common Equity Tier One Capital exceeds the minimum required for capital adequacy purposes. Also known as "additional eligible capital." No definition available.
|
| X | ||||||||||
- Definition Treasury Shares, Held And Financed No definition available.
|