v3.25.2
Other disclosures - Valuation techniques for financial assets and liabilities (Details) - EUR (€)
€ in Millions
6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Disclosure of detailed information about financial instruments [line items]    
Amount of CVA € 251  
Change in CVA (as a percent) (8.20%)  
Amount of DVA € 309  
Change in DVA (as a percent) 2.70%  
Level 3    
Disclosure of detailed information about financial instruments [line items]    
Gains (losses) recognised in profit or loss € (148) € 147