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Non-controlling interests - Schedule of changes in non-controlling interests (Details) - EUR (€) € in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 02, 2025 | Sep. 10, 2024
Non-controlling interests |  |  |  |  |
Equity at beginning of period | € 107,327 | € 104,241 | € 97,585 |  |
Other comprehensive income | 13,642 | 11,405 | 12,797 |  |
Profit attributable to non-controlling interests | 1,399 | 1,170 | 1,107 |  |
Change of perimeter | (5) | (8) | (364) |  |
Equity at end of period | 112,748 | 107,327 | 104,241 |  |
Santander Bank Polska S.A. |  |  |  |  |
Non-controlling interests |  |  |  |  |
Profit attributable to non-controlling interests | 604 | 413 | 347 |  |
Percentage of share capital |  |  |  | 3.50% | 5.20%
Non-Controlling interest |  |  |  |  |
Non-controlling interests |  |  |  |  |
Equity at beginning of period | 8,726 | 8,818 | 8,481 |  |
Equity at end of period | 9,578 | 8,726 | 8,818 |  |
Non-controlling interest, other comprehensive income |  |  |  |  |
Non-controlling interests |  |  |  |  |
Other comprehensive income | 73 | (461) | 297 |  |
Non-controlling interest, other elements |  |  |  |  |
Non-controlling interests |  |  |  |  |
Other | 779 | 369 | 40 |  |
Profit attributable to non-controlling interests | 1,399 | 1,170 | 1,107 |  |
Modification of participation rates | 339 | 395 | (258) |  |
Change of perimeter | (5) | (8) | (364) |  |
Dividends paid to minority shareholders | (896) | (660) | (748) |  |
Changes in capital and others concepts | € (58) | (528) | € 303 |  |
Fixed Rate Reset Perpetual AT1 Capital Securities |  |  |  |  |
Non-controlling interests |  |  |  |  |
Amortisation of other equity instruments |  | € 590 |  |  |

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