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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

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