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Risk management - Changes in gross carrying amounts and loan loss provisions (Details) - EUR (€) € in Millions | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2025 | Dec. 31, 2024
Gross carrying amount | Purchased credit impaired | Stage 3: Lifetime Expected Credit Losses |  |
Disclosure of credit risk exposure [line items] |  |
Opening balance as at 1 January | € (21) |
Closing balance | (21) | € (21)
Gross carrying amount | Stage 2 |  |
Disclosure of credit risk exposure [line items] |  |
Changes in models/risk parameters | 2,300 |
Provisions |  |
Disclosure of credit risk exposure [line items] |  |
Opening balance as at 1 January | (6,049) |
Increase in loan loss provisions | 612 | 1,194
Closing balance | (5,945) | (6,049)
Provisions | IFRS-9 Eligible Financial Assets |  |
Disclosure of credit risk exposure [line items] |  |
Financial assets that have been derecognised | 638 | 1,170
Provisions | Non-credit replacement guarantees |  |
Disclosure of credit risk exposure [line items] |  |
Increase in loan loss provisions | (26) | 9
Provisions | Modification gains and losses on restructured financial assets |  |
Disclosure of credit risk exposure [line items] |  |
Increase in loan loss provisions | 0 | 15
Loans | Gross carrying amount |  |
Disclosure of credit risk exposure [line items] |  |
Opening balance as at 1 January | 1,048,574 | 1,025,043
Net remeasurement of loan loss provisions |  | 0
New financial assets originated or purchased | 134,966 | 212,516
Financial assets that have been derecognised | (72,474) | (140,148)
Net drawdowns and repayments | (33,005) | (46,465)
Changes in models/risk parameters | 0 | 0
Write-offs | (556) | (1,017)
Disposals | (860) | (1,355)
Foreign exchange and other movements | 17,288 | 0
Closing balance | 1,093,934 | 1,048,574
Loans | Gross carrying amount | 12-month expected credit losses |  |
Disclosure of credit risk exposure [line items] |  |
Transfers and reclassifications | 0 | 0
Loans | Gross carrying amount | Not credit-impaired | Lifetime expected credit losses |  |
Disclosure of credit risk exposure [line items] |  |
Transfers and reclassifications | 0 | 0
Loans | Gross carrying amount | Credit impaired | Lifetime expected credit losses |  |
Disclosure of credit risk exposure [line items] |  |
Transfers and reclassifications | 0 | 0
Loans | Gross carrying amount | Stage 1 |  |
Disclosure of credit risk exposure [line items] |  |
Opening balance as at 1 January | 954,943 | 937,633
Net remeasurement of loan loss provisions | 0 | 0
New financial assets originated or purchased | 134,966 | 212,516
Financial assets that have been derecognised | (65,485) | (126,858)
Net drawdowns and repayments | (28,119) | (41,763)
Changes in models/risk parameters | 0 | 0
Write-offs | 0 | 0
Disposals | (510) | (935)
Foreign exchange and other movements | 16,157 | 0
Closing balance | 1,003,405 | 954,943
Loans | Gross carrying amount | Stage 1 | 12-month expected credit losses |  |
Disclosure of credit risk exposure [line items] |  |
Transfers and reclassifications | 16,783 | 20,486
Loans | Gross carrying amount | Stage 1 | Not credit-impaired | Lifetime expected credit losses |  |
Disclosure of credit risk exposure [line items] |  |
Transfers and reclassifications | (24,349) | (43,155)
Loans | Gross carrying amount | Stage 1 | Credit impaired | Lifetime expected credit losses |  |
Disclosure of credit risk exposure [line items] |  |
Transfers and reclassifications | (980) | (2,980)
Loans | Gross carrying amount | Stage 2 |  |
Disclosure of credit risk exposure [line items] |  |
Opening balance as at 1 January | 79,888 | 75,454
Net remeasurement of loan loss provisions | 0 | 0
New financial assets originated or purchased | 0 | 0
Financial assets that have been derecognised | (6,435) | (11,840)
Net drawdowns and repayments | (3,973) | (4,393)
Changes in models/risk parameters | 0 | 0
Write-offs | 0 | 0
Disposals | (68) | (141)
Foreign exchange and other movements | 1,092 | 0
Closing balance | 77,596 | 79,888
Loans | Gross carrying amount | Stage 2 | 12-month expected credit losses |  |
Disclosure of credit risk exposure [line items] |  |
Transfers and reclassifications | (16,655) | (20,236)
Loans | Gross carrying amount | Stage 2 | Not credit-impaired | Lifetime expected credit losses |  |
Disclosure of credit risk exposure [line items] |  |
Transfers and reclassifications | 25,053 | 43,900
Loans | Gross carrying amount | Stage 2 | Credit impaired | Lifetime expected credit losses |  |
Disclosure of credit risk exposure [line items] |  |
Transfers and reclassifications | (1,305) | (2,856)
Loans | Gross carrying amount | Stage 3 |  |
Disclosure of credit risk exposure [line items] |  |
Opening balance as at 1 January | 13,742 | 11,956
Net remeasurement of loan loss provisions | 0 | 0
New financial assets originated or purchased | 0 | 0
Financial assets that have been derecognised | (554) | (1,450)
Net drawdowns and repayments | (912) | (309)
Changes in models/risk parameters | 0 | 0
Write-offs | (556) | (1,017)
Disposals | (282) | (279)
Foreign exchange and other movements | 40 | 0
Closing balance | 12,932 | 13,742
Loans | Gross carrying amount | Stage 3 | 12-month expected credit losses |  |
Disclosure of credit risk exposure [line items] |  |
Transfers and reclassifications | (128) | (249)
Loans | Gross carrying amount | Stage 3 | Not credit-impaired | Lifetime expected credit losses |  |
Disclosure of credit risk exposure [line items] |  |
Transfers and reclassifications | (703) | (745)
Loans | Gross carrying amount | Stage 3 | Credit impaired | Lifetime expected credit losses |  |
Disclosure of credit risk exposure [line items] |  |
Transfers and reclassifications | 2,286 | 5,836
Loans | Provisions |  |
Disclosure of credit risk exposure [line items] |  |
Opening balance as at 1 January | (6,049) | (5,839)
Net remeasurement of loan loss provisions | 215 | (133)
New financial assets originated or purchased | (120) | (192)
Financial assets that have been derecognised | (245) | (485)
Net drawdowns and repayments |  | 0
Changes in models/risk parameters | (35) | (20)
Increase in loan loss provisions | 612 | 1,179
Write-offs | (556) | (1,017)
Disposals | (129) | (225)
Recoveries of amounts previously written off | 30 | 69
Foreign exchange and other movements | (60) | 203
Closing balance | (5,945) | (6,049)
Loans | Provisions | 12-month expected credit losses |  |
Disclosure of credit risk exposure [line items] |  |
Transfers and reclassifications | 141 | 207
Loans | Provisions | Not credit-impaired | Lifetime expected credit losses |  |
Disclosure of credit risk exposure [line items] |  |
Transfers and reclassifications | (250) | (285)
Loans | Provisions | Credit impaired | Lifetime expected credit losses |  |
Disclosure of credit risk exposure [line items] |  |
Transfers and reclassifications | (448) | (1,548)
Loans | Provisions | Stage 1 |  |
Disclosure of credit risk exposure [line items] |  |
Opening balance as at 1 January | (409) | (517)
Net remeasurement of loan loss provisions | (7) | (181)
New financial assets originated or purchased | (119) | (192)
Financial assets that have been derecognised | (40) | (76)
Net drawdowns and repayments |  | 0
Changes in models/risk parameters | (6) | 8
Increase in loan loss provisions | 39 | (102)
Write-offs | 0 | 0
Disposals | (2) | (1)
Recoveries of amounts previously written off | 0 | 0
Foreign exchange and other movements | (7) | (5)
Closing balance | (439) | (409)
Loans | Provisions | Stage 1 | 12-month expected credit losses |  |
Disclosure of credit risk exposure [line items] |  |
Transfers and reclassifications | (15) | (22)
Loans | Provisions | Stage 1 | Not credit-impaired | Lifetime expected credit losses |  |
Disclosure of credit risk exposure [line items] |  |
Transfers and reclassifications | 36 | 49
Loans | Provisions | Stage 1 | Credit impaired | Lifetime expected credit losses |  |
Disclosure of credit risk exposure [line items] |  |
Transfers and reclassifications | 7 | 18
Loans | Provisions | Stage 2 |  |
Disclosure of credit risk exposure [line items] |  |
Opening balance as at 1 January | (1,130) | (1,435)
Net remeasurement of loan loss provisions | 85 | (137)
New financial assets originated or purchased | 0 | 0
Financial assets that have been derecognised | (84) | (153)
Net drawdowns and repayments |  | 0
Changes in models/risk parameters | 17 | (6)
Increase in loan loss provisions | 137 | (297)
Write-offs | 0 | 0
Disposals | (2) | (8)
Recoveries of amounts previously written off | 0 | 0
Foreign exchange and other movements | (18) | 0
Closing balance | (1,247) | (1,130)
Loans | Provisions | Stage 2 | 12-month expected credit losses |  |
Disclosure of credit risk exposure [line items] |  |
Transfers and reclassifications | 132 | 195
Loans | Provisions | Stage 2 | Not credit-impaired | Lifetime expected credit losses |  |
Disclosure of credit risk exposure [line items] |  |
Transfers and reclassifications | (358) | (429)
Loans | Provisions | Stage 2 | Credit impaired | Lifetime expected credit losses |  |
Disclosure of credit risk exposure [line items] |  |
Transfers and reclassifications | 107 | 235
Loans | Provisions | Stage 3 |  |
Disclosure of credit risk exposure [line items] |  |
Opening balance as at 1 January | (4,509) | (3,887)
Net remeasurement of loan loss provisions | 137 | 185
New financial assets originated or purchased | (1) | 0
Financial assets that have been derecognised | (121) | (257)
Net drawdowns and repayments |  | 0
Changes in models/risk parameters | (47) | (22)
Increase in loan loss provisions | 436 | 1,578
Write-offs | (556) | (1,017)
Disposals | (125) | (215)
Recoveries of amounts previously written off | 30 | 69
Foreign exchange and other movements | (35) | 208
Closing balance | (4,259) | (4,509)
Loans | Provisions | Stage 3 | 12-month expected credit losses |  |
Disclosure of credit risk exposure [line items] |  |
Transfers and reclassifications | 23 | 34
Loans | Provisions | Stage 3 | Not credit-impaired | Lifetime expected credit losses |  |
Disclosure of credit risk exposure [line items] |  |
Transfers and reclassifications | 72 | 96
Loans | Provisions | Stage 3 | Credit impaired | Lifetime expected credit losses |  |
Disclosure of credit risk exposure [line items] |  |
Transfers and reclassifications | € (562) | € (1,802)

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