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Grupo Santander - Agreement for the sale of Santander Bank Polska S.A. (Details)
zł / shares in Units, € in Millions, zł in Millions
May 05, 2025
EUR (€)
May 05, 2025
PLN (zł)
zł / shares
Santander Consumer Bank Polska | Agreement for the sale of Santander Bank Polska S.A.    
Disclosure of detailed information about business combination [line items]    
Consideration paid (received) € 726 zł 3,105
Percentage of voting equity interests acquired, announced   60.00%
Santander Bank Polska    
Disclosure of detailed information about business combination [line items]    
Proportion of ownership interest in subsidiary, announced for sale (in percentage)   49.00%
Santander Bank Polska | Agreement for the sale of Santander Bank Polska S.A.    
Disclosure of detailed information about business combination [line items]    
Proportion of ownership interest in subsidiary, announced for sale (in percentage)   49.00%
Sale price, par value per share (in zlotys per share) | zł / shares   zł 584
Proportion of ownership interest in subsidiary (in percentage) 13.00% 13.00%
Santander Towarzystwo Funduszy Inwestycyjnych S.A. | Agreement for the sale of Santander Bank Polska S.A.    
Disclosure of detailed information about business combination [line items]    
Proportion of ownership interest in subsidiary, announced for sale (in percentage)   50.00%
Santander Towarzystwo Funduszy Inwestycyjnych S.A. and Santander Bank Polska S.A. | Agreement for the sale of Santander Bank Polska S.A.    
Disclosure of detailed information about business combination [line items]    
Consideration paid (received) | € € (7,000)