| r0.c0 | Net result after tax/Current | venj-bw2-i:NetResultAfterTax | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r0.c1 | Net result after tax/Previous | venj-bw2-i:NetResultAfterTax | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r1.c0 | Revaluation of property, plant and equipment/Current | rj-i:RevaluationPropertyPlantEquipment | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r1.c1 | Revaluation of property, plant and equipment/Previous | rj-i:RevaluationPropertyPlantEquipment | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r2.c0 | Changes in value of financial assets/Current | rj-i:ChangesValueFinancialAssets | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r2.c1 | Changes in value of financial assets/Previous | rj-i:ChangesValueFinancialAssets | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r3.c0 | Exchange differences of foreign participating interests/Current | rj-i:ExchangeDifferencesForeignParticipatingInterests | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r3.c1 | Exchange differences of foreign participating interests/Previous | rj-i:ExchangeDifferencesForeignParticipatingInterests | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r4.c0 | Realised revaluation charged to equity/Current | rj-i:RealisedRevaluationChargedToEquity | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r4.c1 | Realised revaluation charged to equity/Previous | rj-i:RealisedRevaluationChargedToEquity | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r5.c0 | Adjustment of recycle items/Current | rj-i:AdjustmentsRecycleItems | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r5.c1 | Adjustment of recycle items/Previous | rj-i:AdjustmentsRecycleItems | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r6.c0 | Impact of taxes/Current | rj-i:ImpactTaxesComprehensiveIncomeOther | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r6.c1 | Impact of taxes/Previous | rj-i:ImpactTaxesComprehensiveIncomeOther | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r7.c0 | Other comprehensive income/Current | rj-i:ComprehensiveIncomeOther | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r7.c1 | Other comprehensive income/Previous | rj-i:ComprehensiveIncomeOther | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r8.c0 | Comprehensive income/Current | venj-bw2-i:ComprehensiveIncome | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r8.c1 | Comprehensive income/Previous | venj-bw2-i:ComprehensiveIncome | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r9.c0 | Other income and expenses within other comprehensive income/Current | rj-i:ComprehensiveIncomeOtherIncomeExpenses | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r9.c1 | Other income and expenses within other comprehensive income/Previous | rj-i:ComprehensiveIncomeOtherIncomeExpenses | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodPreviousStartDateParam/$FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |