v3.25.2
Financial assets - Disclosure of reconciliation of changes in loss allowance (Details) - Financial assets at amortised cost - EUR (€)
€ in Millions
 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Disclosure of reconciliation of changes in loss allowance of financial instruments    
Impairment losses charged to income for the period € 7,314 € 7,005
Impairment losses charged to income 14,514 12,720
Impairment losses reversed with a credit to income (7,200) (5,715)
Write-off of impaired balances against recorded impairment allowance (6,780) (6,439)
Exchange differences and other (1,774) (701)
Accumulated impairment    
Disclosure of reconciliation of changes in loss allowance of financial instruments    
Impairment allowance at beginning of year 22,326 22,950
Impairment allowance at end of year 21,086 22,815
Impaired assets | Accumulated impairment    
Disclosure of reconciliation of changes in loss allowance of financial instruments    
Impairment allowance at end of year 13,607 14,429
Other assets | Accumulated impairment    
Disclosure of reconciliation of changes in loss allowance of financial instruments    
Impairment allowance at end of year 7,479 8,386
Individually calculated | Accumulated impairment    
Disclosure of reconciliation of changes in loss allowance of financial instruments    
Impairment allowance at end of year 2,628 2,964
Collectively calculated | Accumulated impairment    
Disclosure of reconciliation of changes in loss allowance of financial instruments    
Impairment allowance at end of year € 18,458 € 19,851