v3.26.1
Trading derivatives (assets and liabilities) and short positions - Schedule by type of inherent risk of fair value of trading derivatives (Details) - EUR (€)
€ in Millions
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Financial instruments      
Financial assets held for trading € 252,318 € 230,253 € 176,921
Financial liabilities held for trading 171,546 152,151 122,270
Derivatives      
Financial instruments      
Financial liabilities held for trading 51,968 57,753 50,589
Derivatives | Interest rate risk      
Financial instruments      
Financial liabilities held for trading 23,728 24,754 26,014
Derivatives | Currency risk      
Financial instruments      
Financial liabilities held for trading 20,508 29,110 23,094
Derivatives | Price risk      
Financial instruments      
Financial liabilities held for trading 2,279 1,632 904
Derivatives | Other risks      
Financial instruments      
Financial liabilities held for trading 5,453 2,257 577
Derivatives      
Financial instruments      
Financial assets held for trading 58,355 64,100 56,328
Derivatives | Interest rate risk      
Financial instruments      
Financial assets held for trading 29,550 30,834 31,480
Derivatives | Currency risk      
Financial instruments      
Financial assets held for trading 24,755 29,395 22,834
Derivatives | Price risk      
Financial instruments      
Financial assets held for trading 1,858 1,765 1,279
Derivatives | Other risks      
Financial instruments      
Financial assets held for trading € 2,192 € 2,106 € 735