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Risk management - NII/NPV-at-Risk banking book per currency - year one (Details) - NII-at-Risk - EUR (€) € in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Ramped unfloored parallel downward |  |
Disclosure Of Market Risk Exposure [Line Items] |  |
Reportable ECL | € (239) | € (142)
NPV-at-Risk | 27 | 594
Ramped unfloored parallel downward | Euro |  |
Disclosure Of Market Risk Exposure [Line Items] |  |
Reportable ECL | (165) | (119)
NPV-at-Risk | (291) | 392
Ramped unfloored parallel downward | US Dollar |  |
Disclosure Of Market Risk Exposure [Line Items] |  |
Reportable ECL | (12) | (1)
NPV-at-Risk | 186 | 137
Ramped unfloored parallel downward | Other currency |  |
Disclosure Of Market Risk Exposure [Line Items] |  |
Reportable ECL | (62) | (23)
NPV-at-Risk | 131 | 66
Ramped unfloored parallel upward |  |
Disclosure Of Market Risk Exposure [Line Items] |  |
Reportable ECL | 236 | 142
NPV-at-Risk | (969) | (1,153)
Ramped unfloored parallel upward | Euro |  |
Disclosure Of Market Risk Exposure [Line Items] |  |
Reportable ECL | 155 | 114
NPV-at-Risk | (645) | (926)
Ramped unfloored parallel upward | US Dollar |  |
Disclosure Of Market Risk Exposure [Line Items] |  |
Reportable ECL | 12 | 2
NPV-at-Risk | (178) | (147)
Ramped unfloored parallel upward | Other currency |  |
Disclosure Of Market Risk Exposure [Line Items] |  |
Reportable ECL | 69 | 27
NPV-at-Risk | € (146) | € (79)

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- Definition The measure of a potential loss exposure as a result of future market movements, based on a specified confidence interval and measurement horizon. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 7 -IssueDate 2023-01-01 -Paragraph 41 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2023-en-r&anchor=para_41&doctype=Standard -URIDate 2023-03-23 + Details
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- References No definition available. + Details
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- Definition NPV-at-Risk measures the impact of changing interest rates on value. The NPV-at-Risk is defined as the outcome of an instantaneous increase and decrease in interest rates from applying currency specific scenarios. + References No definition available. + Details
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- Details
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- Details
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- Details
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- Details
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- Details
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- Details
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