| r0.c0 | Original amount of loans, advances and guarantees on behalf of managing and supervisory directors/Current | venj-bw2-i:LoansAdvancesGuaranteesOnBehalfOfManagingSupervisoryDirectorsOriginalAmount | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ManagingDirectorsMember | venj-bw2-dm:ConsolidatedMember |
| r0.c1 | Original amount of loans, advances and guarantees on behalf of managing and supervisory directors/Previous | venj-bw2-i:LoansAdvancesGuaranteesOnBehalfOfManagingSupervisoryDirectorsOriginalAmount | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ManagingDirectorsMember | venj-bw2-dm:ConsolidatedMember |
| r1.c0 | Repayments during the period of loans, advances and guarantees on behalf of managing and supervisory directors/Current | venj-bw2-i:LoansAdvancesGuaranteesOnBehalfOfManagingSupervisoryDirectorsRepayments | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ManagingDirectorsMember | venj-bw2-dm:ConsolidatedMember |
| r1.c1 | Repayments during the period of loans, advances and guarantees on behalf of managing and supervisory directors/Previous | venj-bw2-i:LoansAdvancesGuaranteesOnBehalfOfManagingSupervisoryDirectorsRepayments | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ManagingDirectorsMember | venj-bw2-dm:ConsolidatedMember |
| r2.c0 | Impaired and waived amount of loans, advances and guarantees on behalf of managing and supervisory directors/Current | venj-bw2-i:LoansAdvancesGuaranteesOnBehalfOfManagingSupervisoryDirectorsImpairedAndWaivedAmount | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ManagingDirectorsMember | venj-bw2-dm:ConsolidatedMember |
| r2.c1 | Impaired and waived amount of loans, advances and guarantees on behalf of managing and supervisory directors/Previous | venj-bw2-i:LoansAdvancesGuaranteesOnBehalfOfManagingSupervisoryDirectorsImpairedAndWaivedAmount | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ManagingDirectorsMember | venj-bw2-dm:ConsolidatedMember |
| r3.c0 | Interest rate of the loans, advances and guarantees on behalf of managing and supervisory directors/Current | venj-bw2-i:LoansAdvancesGuaranteesOnBehalfOfManagingSupervisoryDirectorsInterestRate | num:percentItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ManagingDirectorsMember | venj-bw2-dm:ConsolidatedMember |
| r3.c1 | Interest rate of the loans, advances and guarantees on behalf of managing and supervisory directors/Previous | venj-bw2-i:LoansAdvancesGuaranteesOnBehalfOfManagingSupervisoryDirectorsInterestRate | num:percentItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ManagingDirectorsMember | venj-bw2-dm:ConsolidatedMember |