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Fair value of assets and liabilities - Changes in level 3 financial assets (Details) - EUR (€) € in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
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 | € 316 | € (171)
Level 3 |  |
Disclosure of fair value measurement of assets [line items] |  |
Opening balance as at 1 January | 7,526 | 6,228
Realised gain/loss recognised in the statement of profit or loss during the period | (322) | 178
Revaluation recognised in other comprehensive income during the period | (6) | (84)
Purchase of assets | 4,735 | 3,288
Sale of assets | (2,433) | (1,187)
Maturity/settlement | (1,910) | (1,188)
Reclassifications | 728 | (8)
Transfers into Level 3 | 1,860 | 1,646
Transfers out of Level 3 | (994) | (1,414)
Exchange rate differences | (59) | 68
Changes in the composition of the group and other changes | (6) |
Closing balance | 9,118 | 7,526
Level 3 | Financial assets mandatorily at FVPL |  |
Disclosure of fair value measurement of assets [line items] |  |
Opening balance as at 1 January | 1,849 | 1,862
Realised gain/loss recognised in the statement of profit or loss during the period | (33) | (57)
Purchase of assets | 2,208 | 1,586
Sale of assets | (1,109) | (669)
Maturity/settlement | (576) | (617)
Reclassifications | 723 | (18)
Transfers into Level 3 | 981 | 605
Transfers out of Level 3 | (534) | (856)
Exchange rate differences | (9) | 14
Changes in the composition of the group and other changes |  |
Closing balance | 3,499 | 1,849
Level 3 | Financial assets designated at FVPL |  |
Disclosure of fair value measurement of assets [line items] |  |
Opening balance as at 1 January | 3,492 | 2,480
Realised gain/loss recognised in the statement of profit or loss during the period | (383) | 122
Purchase of assets | 873 | 772
Sale of assets | (138) | (191)
Maturity/settlement | (292) |
Reclassifications |  |
Transfers into Level 3 | 1 | 322
Transfers out of Level 3 |  |
Exchange rate differences | (9) | (12)
Changes in the composition of the group and other changes | 2 |
Closing balance | 3,547 | 3,492
Level 3 | Financial assets at FVOCI |  |
Disclosure of fair value measurement of assets [line items] |  |
Opening balance as at 1 January | 891 | 1,063
Realised gain/loss recognised in the statement of profit or loss during the period |  | 8
Revaluation recognised in other comprehensive income during the period | (6) | (84)
Purchase of assets | 331 | 221
Sale of assets | (243) | (275)
Maturity/settlement | (22) | (59)
Reclassifications | 5 | 10
Transfers into Level 3 |  | (43)
Transfers out of Level 3 |  |
Exchange rate differences | (10) | 49
Changes in the composition of the group and other changes | (8) |
Closing balance | 938 | 891
Level 3 | Trading assets |  |
Disclosure of fair value measurement of assets [line items] |  |
Opening balance as at 1 January | 873 | 822
Realised gain/loss recognised in the statement of profit or loss during the period | 235 | 53
Purchase of assets | 1,246 | 694
Sale of assets | (889) | (49)
Maturity/settlement | (1,005) | (511)
Reclassifications |  |
Transfers into Level 3 | 879 | 288
Transfers out of Level 3 | (459) | (442)
Exchange rate differences | (31) | 18
Changes in the composition of the group and other changes |  |
Closing balance | 848 | 873
Level 3 | Non-trading derivatives |  |
Disclosure of fair value measurement of assets [line items] |  |
Opening balance as at 1 January | 421 | 1
Realised gain/loss recognised in the statement of profit or loss during the period | (142) | 52
Purchase of assets | 76 | 15
Sale of assets | (55) | (4)
Maturity/settlement | (15) | (2)
Reclassifications |  |
Transfers into Level 3 |  | 474
Transfers out of Level 3 |  | (115)
Exchange rate differences |  |
Changes in the composition of the group and other changes |  |
Closing balance | € 286 | € 421

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