v3.26.1
Financial assets - Disclosure of reconciliation of financial assets classified at amortised cost (Details) - Financial assets at amortised cost - EUR (€)
€ in Millions
6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Disclosure of reconciliation of changes in loss allowance of financial instruments    
Written-off assets € (6,350) € (6,780)
Exchange differences and other (778) 1,774
Gross carrying amount | Impaired assets    
Disclosure of reconciliation of changes in loss allowance of financial instruments    
Financial assets at beginning of period 32,297 34,206
Net additions 8,564 6,119
Written-off assets (6,350) (6,780)
Perimeter Changes 502 0
Exchange differences and other 1,044 (2,549)
Financial assets at end of period € 36,057 € 30,996