v3.26.1
Fair value of financial instruments - Narrative (Details)
€ in Millions
12 Months Ended
Dec. 31, 2025
EUR (€)
independent_division
Dec. 31, 2024
EUR (€)
Dec. 31, 2023
EUR (€)
Fair Value of Financial Instruments [Abstract]      
Number of independent divisions | independent_division 2    
Amount of CVA € 224 € 272 € 293
Change in CVA (as a percent) 17.60% 7.20% 16.50%
Amount of DVA € 285 € 317 € 330
Change in DVA (as a percent) 10.10% 3.90% 9.30%
Gain (loss) recognized in profit and loss € 469 € 523 € 404