| r0.c0 | Equity in the consolidated financial statements/Current | venj-bw2-i:EquityConsolidatedFinancialStatements | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r0.c1 | Equity in the consolidated financial statements/Previous | venj-bw2-i:EquityConsolidatedFinancialStatements | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r1.c0 | Negative equity of consolidated participating interests/Current | venj-bw2-i:NegativeEquityParticipatingInterestsConsolidated | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r1.c1 | Negative equity of consolidated participating interests/Previous | venj-bw2-i:NegativeEquityParticipatingInterestsConsolidated | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r2.c0 | Unrealised accumulated intercompany result/Current | venj-bw2-i:UnrealisedAccumulatedIntercompanyResult | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r2.c1 | Unrealised accumulated intercompany result/Previous | venj-bw2-i:UnrealisedAccumulatedIntercompanyResult | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r3.c0 | Provision participating interests/Current | rj-i:ProvisionParticipatingInterests | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r3.c1 | Provision participating interests/Previous | rj-i:ProvisionParticipatingInterests | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r4.c0 | Other differences in equity between the separate and consolidated financial statements/Current | venj-bw2-i:EquityDifferenceSeparateConsolidatedFinancialStatementsOther | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r4.c1 | Other differences in equity between the separate and consolidated financial statements/Previous | venj-bw2-i:EquityDifferenceSeparateConsolidatedFinancialStatementsOther | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r5.c0 | Difference in equity in the separate and consolidated financial statements/Current | venj-bw2-i:EquityDifferenceSeparateConsolidatedFinancialStatements | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r5.c1 | Difference in equity in the separate and consolidated financial statements/Previous | venj-bw2-i:EquityDifferenceSeparateConsolidatedFinancialStatements | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r6.c0 | Equity in the separate financial statements/Current | venj-bw2-i:EquitySeparateFinancialStatements | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r6.c1 | Equity in the separate financial statements/Previous | venj-bw2-i:EquitySeparateFinancialStatements | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |