| r0.c0 | kvk-table_NotesSegmentReportingSpecificationBanksTable-y/Interest income and related income | venj-bw2-i:InterestIncomeRelatedIncome | nl-types:monetaryNoDecimalsItemType | duration | N/A | * | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r0.c1 | kvk-table_NotesSegmentReportingSpecificationBanksTable-y/Income from securities and investments in participating interests | venj-bw2-i:IncomeFromSecuritiesAndInvestmentsInParticipatingInterests | nl-types:monetaryNoDecimalsItemType | duration | N/A | * | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r0.c2 | kvk-table_NotesSegmentReportingSpecificationBanksTable-y/Commissions received | venj-bw2-i:CommissionsReceivedAndReceivable | nl-types:monetaryNoDecimalsItemType | duration | N/A | * | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r0.c3 | kvk-table_NotesSegmentReportingSpecificationBanksTable-y/Result from financial transactions | venj-bw2-i:ResultFromFinancialTransactions | nl-types:monetaryNoDecimalsItemType | duration | N/A | * | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r0.c4 | kvk-table_NotesSegmentReportingSpecificationBanksTable-y/Other operating income | venj-bw2-i:OperatingIncomeOther | nl-types:monetaryNoDecimalsItemType | duration | N/A | * | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r0.c5 | kvk-table_NotesSegmentReportingSpecificationBanksTable-y/Presentation order | nl-cd:PresentationOrder | nl-types:nonNegativeDecimalItemType | duration | N/A | * | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r1.c0 | kvk-table_NotesSegmentReportingSpecificationBanksTable-y.1/Interest income and related income | venj-bw2-i:InterestIncomeRelatedIncome | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | * | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r1.c1 | kvk-table_NotesSegmentReportingSpecificationBanksTable-y.1/Income from securities and investments in participating interests | venj-bw2-i:IncomeFromSecuritiesAndInvestmentsInParticipatingInterests | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | * | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r1.c2 | kvk-table_NotesSegmentReportingSpecificationBanksTable-y.1/Commissions received | venj-bw2-i:CommissionsReceivedAndReceivable | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | * | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r1.c3 | kvk-table_NotesSegmentReportingSpecificationBanksTable-y.1/Result from financial transactions | venj-bw2-i:ResultFromFinancialTransactions | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | * | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r1.c4 | kvk-table_NotesSegmentReportingSpecificationBanksTable-y.1/Other operating income | venj-bw2-i:OperatingIncomeOther | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | * | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r1.c5 | kvk-table_NotesSegmentReportingSpecificationBanksTable-y.1/Presentation order | nl-cd:PresentationOrder | nl-types:nonNegativeDecimalItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | * | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |