v3.25.4
Taxation - Summary of taxation by type (Details) - EUR (€)
€ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure of income taxes [line items]      
Current taxation € 2,453 € 2,432 € 2,722
Deferred taxation 739 (251) (1,059)
Effective tax amount 3,192 2,181 1,662
Netherlands      
Disclosure of income taxes [line items]      
Current taxation 510 454 601
Deferred taxation 323 65 (141)
Effective tax amount 833 519 460
Rest of the world      
Disclosure of income taxes [line items]      
Current taxation 1,943 1,977 2,121
Deferred taxation 417 (315) (918)
Effective tax amount € 2,359 € 1,662 € 1,202