v3.25.4
Financial assets at fair value through other comprehensive income - Summary of changes in fair value through other comprehensive income financial assets (Details) - Financial assets at FVOCI - EUR (€)
€ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Disclosure of financial assets [line items]    
Opening balance as at 1 January € 46,389 € 41,116
Additions 43,294 21,091
Amortisation 75 77
Transfers 10 1
Changes in unrealised revaluations 166 509
Impairments (10) 2
Reversals of impairments 7 (7)
Disposals and redemptions (33,131) (16,907)
Exchange rate differences (1,267) 506
Other changes 1,128
Closing balance 56,662 46,389
FVOCI equity securities    
Disclosure of financial assets [line items]    
Opening balance as at 1 January 2,562 1,885
Additions 395 11
Amortisation
Transfers 10
Changes in unrealised revaluations (156) 605
Impairments
Reversals of impairments
Disposals and redemptions (7) (1)
Exchange rate differences (178) 62
Other changes (19)
Closing balance 2,607 2,562
FVOCI debt instruments    
Disclosure of financial assets [line items]    
Opening balance as at 1 January 43,827 39,231
Additions 42,899 21,080
Amortisation 75 77
Transfers 1
Changes in unrealised revaluations 322 (96)
Impairments (10) 2
Reversals of impairments 7 (7)
Disposals and redemptions (33,124) (16,906)
Exchange rate differences (1,088) 443
Other changes 1,148
Closing balance € 54,055 € 43,827