| r0.c0 | Investments in participating interests in group companies/Current | venj-bw2-i:InvestmentsInParticipatingInterestsInGroupCompanies | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r0.c1 | Investments in participating interests in group companies/Previous | venj-bw2-i:InvestmentsInParticipatingInterestsInGroupCompanies | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r1.c0 | Other investments in participating interests/Current | venj-bw2-i:InvestmentsInParticipatingInterestsOther | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r1.c1 | Other investments in participating interests/Previous | venj-bw2-i:InvestmentsInParticipatingInterestsOther | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r2.c0 | Investments in participating interests/Current | venj-bw2-i:InvestmentsInParticipatingInterests | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r2.c1 | Investments in participating interests/Previous | venj-bw2-i:InvestmentsInParticipatingInterests | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |