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Risk management - Sensitivity analysis (Details) - EUR (€) € in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Netherlands |  |
Market Risk [Line Items] |  |
Reportable ECL | € 310 | € 381
Netherlands | Upside scenario |  |
Market Risk [Line Items] |  |
Un-weighted ECL | € 214 | € 274
Probability weighting | 20.00% | 20.00%
Netherlands | Upside scenario | Real GDP |  |
Market Risk [Line Items] |  |
2024 | 130.00% | 220.00%
2025 | 330.00% | 230.00%
2026 | 280.00% | 290.00%
Netherlands | Upside scenario | Unemployment |  |
Market Risk [Line Items] |  |
2024 | 370.00% | 400.00%
2025 | 330.00% | 390.00%
2026 | 330.00% | 380.00%
Netherlands | Upside scenario | HPI |  |
Market Risk [Line Items] |  |
2024 | 1040.00% | 1300.00%
2025 | 1120.00% | 1180.00%
2026 | 400.00% | 250.00%
Netherlands | Baseline Scenario |  |
Market Risk [Line Items] |  |
Un-weighted ECL | € 282 | € 349
Probability weighting | 60.00% | 60.00%
Netherlands | Baseline Scenario | Real GDP |  |
Market Risk [Line Items] |  |
2024 | 80.00% | 20.00%
2025 | 160.00% | 140.00%
2026 | 150.00% | 180.00%
Netherlands | Baseline Scenario | Unemployment |  |
Market Risk [Line Items] |  |
2024 | 410.00% | 450.00%
2025 | 430.00% | 480.00%
2026 | 450.00% | 490.00%
Netherlands | Baseline Scenario | HPI |  |
Market Risk [Line Items] |  |
2024 | 90.00% | 370.00%
2025 | 300.00% | 370.00%
2026 | 390.00% | 240.00%
Netherlands | Downside scenario |  |
Market Risk [Line Items] |  |
Un-weighted ECL | € 487 | € 583
Probability weighting | 20.00% | 20.00%
Netherlands | Downside scenario | Real GDP |  |
Market Risk [Line Items] |  |
2024 | (170.00%) | (420.00%)
2025 | (120.00%) | 70.00%
2026 | 10.00% | 90.00%
Netherlands | Downside scenario | Unemployment |  |
Market Risk [Line Items] |  |
2024 | 590.00% | 640.00%
2025 | 720.00% | 780.00%
2026 | 810.00% | 870.00%
Netherlands | Downside scenario | HPI |  |
Market Risk [Line Items] |  |
2024 | (1090.00%) | (800.00%)
2025 | (740.00%) | (650.00%)
2026 | 370.00% | 220.00%
Germany |  |
Market Risk [Line Items] |  |
Reportable ECL | € 525 | € 745
Germany | Upside scenario |  |
Market Risk [Line Items] |  |
Un-weighted ECL | € 472 | € 606
Probability weighting | 20.00% | 20.00%
Germany | Upside scenario | Real GDP |  |
Market Risk [Line Items] |  |
2024 | 140.00% | 170.00%
2025 | 310.00% | 230.00%
2026 | 160.00% | 180.00%
Germany | Upside scenario | Unemployment |  |
Market Risk [Line Items] |  |
2024 | 260.00% | 260.00%
2025 | 200.00% | 220.00%
2026 | 170.00% | 180.00%
Germany | Upside scenario | HPI |  |
Market Risk [Line Items] |  |
2024 | 90.00% | 60.00%
2025 | 660.00% | 390.00%
2026 | 800.00% | 620.00%
Germany | Baseline Scenario |  |
Market Risk [Line Items] |  |
Un-weighted ECL | € 513 | € 726
Probability weighting | 60.00% | 60.00%
Germany | Baseline Scenario | Real GDP |  |
Market Risk [Line Items] |  |
2024 | 50.00% | (70.00%)
2025 | 130.00% | 140.00%
2026 | 120.00% | 150.00%
Germany | Baseline Scenario | Unemployment |  |
Market Risk [Line Items] |  |
2024 | 300.00% | 320.00%
2025 | 300.00% | 310.00%
2026 | 300.00% | 310.00%
Germany | Baseline Scenario | HPI |  |
Market Risk [Line Items] |  |
2024 | (140.00%) | (180.00%)
2025 | 340.00% | 90.00%
2026 | 450.00% | 270.00%
Germany | Downside scenario |  |
Market Risk [Line Items] |  |
Un-weighted ECL | € 615 | € 942
Probability weighting | 20.00% | 20.00%
Germany | Downside scenario | Real GDP |  |
Market Risk [Line Items] |  |
2024 | (240.00%) | (480.00%)
2025 | (140.00%) | 10.00%
2026 | 30.00% | 100.00%
Germany | Downside scenario | Unemployment |  |
Market Risk [Line Items] |  |
2024 | 450.00% | 480.00%
2025 | 520.00% | 530.00%
2026 | 550.00% | 560.00%
Germany | Downside scenario | HPI |  |
Market Risk [Line Items] |  |
2024 | (600.00%) | (620.00%)
2025 | (80.00%) | (330.00%)
2026 | 40.00% | (140.00%)
Belgium |  |
Market Risk [Line Items] |  |
Reportable ECL | € 619 | € 596
Belgium | Upside scenario |  |
Market Risk [Line Items] |  |
Un-weighted ECL | € 568 | € 535
Probability weighting | 20.00% | 20.00%
Belgium | Upside scenario | Real GDP |  |
Market Risk [Line Items] |  |
2024 | 150.00% | 170.00%
2025 | 270.00% | 210.00%
2026 | 230.00% | 210.00%
Belgium | Upside scenario | Unemployment |  |
Market Risk [Line Items] |  |
2024 | 530.00% | 550.00%
2025 | 500.00% | 550.00%
2026 | 490.00% | 530.00%
Belgium | Upside scenario | HPI |  |
Market Risk [Line Items] |  |
2024 | 130.00% | 230.00%
2025 | 560.00% | 260.00%
2026 | 450.00% | 310.00%
Belgium | Baseline Scenario |  |
Market Risk [Line Items] |  |
Un-weighted ECL | € 604 | € 584
Probability weighting | 60.00% | 60.00%
Belgium | Baseline Scenario | Real GDP |  |
Market Risk [Line Items] |  |
2024 | 90.00% | 0.00%
2025 | 150.00% | 160.00%
2026 | 180.00% | 180.00%
Belgium | Baseline Scenario | Unemployment |  |
Market Risk [Line Items] |  |
2024 | 560.00% | 610.00%
2025 | 550.00% | 630.00%
2026 | 540.00% | 610.00%
Belgium | Baseline Scenario | HPI |  |
Market Risk [Line Items] |  |
2024 | 40.00% | 140.00%
2025 | 520.00% | 220.00%
2026 | 390.00% | 250.00%
Belgium | Downside scenario |  |
Market Risk [Line Items] |  |
Un-weighted ECL | € 713 | € 692
Probability weighting | 20.00% | 20.00%
Belgium | Downside scenario | Real GDP |  |
Market Risk [Line Items] |  |
2024 | (130.00%) | (320.00%)
2025 | (20.00%) | 100.00%
2026 | 120.00% | 150.00%
Belgium | Downside scenario | Unemployment |  |
Market Risk [Line Items] |  |
2024 | 730.00% | 750.00%
2025 | 800.00% | 850.00%
2026 | 790.00% | 840.00%
Belgium | Downside scenario | HPI |  |
Market Risk [Line Items] |  |
2024 | (220.00%) | (120.00%)
2025 | 390.00% | 90.00%
2026 | 260.00% | 120.00%
USA |  |
Market Risk [Line Items] |  |
Reportable ECL | € 165 | € 221
USA | Upside scenario |  |
Market Risk [Line Items] |  |
Un-weighted ECL | € 102 | € 100
Probability weighting | 20.00% | 20.00%
USA | Upside scenario | Real GDP |  |
Market Risk [Line Items] |  |
2024 | 180.00% | 300.00%
2025 | 320.00% | 150.00%
2026 | 340.00% | 340.00%
USA | Upside scenario | Unemployment |  |
Market Risk [Line Items] |  |
2024 | 410.00% | 340.00%
2025 | 330.00% | 280.00%
2026 | 310.00% | 250.00%
USA | Upside scenario | HPI |  |
Market Risk [Line Items] |  |
2024 | 60.00% | 370.00%
2025 | 870.00% | 740.00%
2026 | 870.00% | 810.00%
USA | Baseline Scenario |  |
Market Risk [Line Items] |  |
Un-weighted ECL | € 144 | € 188
Probability weighting | 60.00% | 60.00%
USA | Baseline Scenario | Real GDP |  |
Market Risk [Line Items] |  |
2024 | 90.00% | 20.00%
2025 | 190.00% | 110.00%
2026 | 210.00% | 230.00%
USA | Baseline Scenario | Unemployment |  |
Market Risk [Line Items] |  |
2024 | 450.00% | 430.00%
2025 | 450.00% | 440.00%
2026 | 440.00% | 390.00%
USA | Baseline Scenario | HPI |  |
Market Risk [Line Items] |  |
2024 | (70.00%) | 250.00%
2025 | 350.00% | 220.00%
2026 | 330.00% | 280.00%
USA | Downside scenario |  |
Market Risk [Line Items] |  |
Un-weighted ECL | € 292 | € 442
Probability weighting | 20.00% | 20.00%
USA | Downside scenario | Real GDP |  |
Market Risk [Line Items] |  |
2024 | (130.00%) | (410.00%)
2025 | (140.00%) | 20.00%
2026 | (10.00%) | 60.00%
USA | Downside scenario | Unemployment |  |
Market Risk [Line Items] |  |
2024 | 660.00% | 640.00%
2025 | 820.00% | 770.00%
2026 | 880.00% | 820.00%
USA | Downside scenario | HPI |  |
Market Risk [Line Items] |  |
2024 | (420.00%) | (120.00%)
2025 | (270.00%) | (380.00%)
2026 | (300.00%) | (350.00%)

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