v3.26.1
Derivative financial instruments and hedge accounting - Effects recognized in finance income (loss) (Details) - EUR (€)
€ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Derivative financial instruments and hedge accounting      
Income (expense) from derivative financial instruments € (80) € 278 € (61)
Currency      
Derivative financial instruments and hedge accounting      
Income (expense) from derivative financial instruments (86) 310 (63)
Interest rate risk      
Derivative financial instruments and hedge accounting      
Income (expense) from derivative financial instruments € (6) € (32) € 2