v3.25.2
Fair value of assets and liabilities - Changes in level 3 financial assets (Details) - EUR (€)
€ in Millions
6 Months Ended 12 Months Ended
Jun. 30, 2025
Dec. 31, 2024
Financial assets at fair value, class    
Disclosure of fair value measurement of assets [line items]    
Unrealised gains on (losses) recognised in the statement of profit or loss € 299 € (41)
Level 3    
Disclosure of fair value measurement of assets [line items]    
Opening balance as at 1 January 11,005 9,118
Realised gain/loss recognised in the statement of profit or loss during the period (302) 28
Revaluation recognised in other comprehensive income during the period 6 (3)
Purchase of assets 3,444 6,862
Sale of assets (1,067) (2,402)
Maturity/settlement (294) (1,449)
Reclassifications 11 0
Transfers into Level 3 593 1,014
Transfers out of Level 3 (1,796) (2,169)
Exchange rate differences (9) 12
Changes in the composition of the group and other changes 7 (6)
Closing balance 11,597 11,005
Level 3 | Financial assets mandatorily at FVPL    
Disclosure of fair value measurement of assets [line items]    
Opening balance as at 1 January 5,721 3,499
Realised gain/loss recognised in the statement of profit or loss during the period 123 294
Purchase of assets 2,464 4,424
Sale of assets (251) (1,605)
Maturity/settlement (95) (294)
Reclassifications 3 0
Transfers into Level 3 565 615
Transfers out of Level 3 (1,440) (1,214)
Exchange rate differences (4) 5
Changes in the composition of the group and other changes 6 (1)
Closing balance 7,092 5,721
Level 3 | Financial assets designated at FVPL    
Disclosure of fair value measurement of assets [line items]    
Opening balance as at 1 January 4,121 3,547
Realised gain/loss recognised in the statement of profit or loss during the period (622) (54)
Purchase of assets 211 1,600
Sale of assets (778) (10)
Maturity/settlement (189) (988)
Reclassifications 0 0
Transfers into Level 3 0 30
Transfers out of Level 3 0 (3)
Exchange rate differences (4) (2)
Changes in the composition of the group and other changes 1 0
Closing balance 2,740 4,121
Level 3 | Financial assets at FVOCI    
Disclosure of fair value measurement of assets [line items]    
Opening balance as at 1 January 270 938
Revaluation recognised in other comprehensive income during the period 6 (3)
Purchase of assets 160 154
Sale of assets (4) (418)
Maturity/settlement 0 (20)
Reclassifications 8 0
Transfers into Level 3 0 0
Transfers out of Level 3 0 (384)
Exchange rate differences 9
Changes in the composition of the group and other changes 0 (5)
Closing balance 440 270
Level 3 | Trading assets    
Disclosure of fair value measurement of assets [line items]    
Opening balance as at 1 January 824 848
Realised gain/loss recognised in the statement of profit or loss during the period 180 (175)
Purchase of assets 609 486
Sale of assets (35) (111)
Maturity/settlement (9) (140)
Reclassifications 0 0
Transfers into Level 3 29 370
Transfers out of Level 3 (347) (454)
Exchange rate differences (1) 0
Changes in the composition of the group and other changes 0 0
Closing balance 1,249 824
Level 3 | Non-trading derivatives    
Disclosure of fair value measurement of assets [line items]    
Opening balance as at 1 January 68 286
Realised gain/loss recognised in the statement of profit or loss during the period 17 (38)
Purchase of assets 1 198
Sale of assets 0 (257)
Maturity/settlement 0 (7)
Reclassifications 0 0
Transfers into Level 3 0 0
Transfers out of Level 3 (9) (114)
Exchange rate differences 0 0
Changes in the composition of the group and other changes 0 0
Closing balance € 77 € 68