| r0.c0 | Non-current subordinated liabilities/Current | venj-bw2-i:SubordinatedLiabilitiesNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r0.c1 | Non-current subordinated liabilities/Previous | venj-bw2-i:SubordinatedLiabilitiesNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r1.c0 | Non-current convertible borrowings/Current | venj-bw2-i:ConvertibleBorrowingsNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r1.c1 | Non-current convertible borrowings/Previous | venj-bw2-i:ConvertibleBorrowingsNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r2.c0 | Non-current other debentures and private loans/Current | venj-bw2-i:DebenturesOtherPrivateLoansNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r2.c1 | Non-current other debentures and private loans/Previous | venj-bw2-i:DebenturesOtherPrivateLoansNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r3.c0 | Non-current finance lease liabilities/Current | rj-i:FinanceLeaseLiabilitiesNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r3.c1 | Non-current finance lease liabilities/Previous | rj-i:FinanceLeaseLiabilitiesNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r4.c0 | Non-current payables to credit institutions/Current | venj-bw2-i:PayablesCreditInstitutionsNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r4.c1 | Non-current payables to credit institutions/Previous | venj-bw2-i:PayablesCreditInstitutionsNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r5.c0 | Non-current advances received/Current | venj-bw2-i:AdvancesReceivedNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r5.c1 | Non-current advances received/Previous | venj-bw2-i:AdvancesReceivedNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r6.c0 | Non-current trade payables/Current | venj-bw2-i:TradePayablesNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r6.c1 | Non-current trade payables/Previous | venj-bw2-i:TradePayablesNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r7.c0 | Non-current cheques and bills of exchange payables/Current | venj-bw2-i:BillsExchangeChequesPayableNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r7.c1 | Non-current cheques and bills of exchange payables/Previous | venj-bw2-i:BillsExchangeChequesPayableNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r8.c0 | Non-current payables to group companies/Current | venj-bw2-i:PayablesGroupCompaniesNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r8.c1 | Non-current payables to group companies/Previous | venj-bw2-i:PayablesGroupCompaniesNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r9.c0 | Non-current payables to other related parties/Current | venj-bw2-i:PayablesOtherRelatedPartiesNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r9.c1 | Non-current payables to other related parties/Previous | venj-bw2-i:PayablesOtherRelatedPartiesNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r10.c0 | Non-current payables to receivables shareholders and participating interests/Current | venj-bw2-i:PayablesShareholdersParticipatingInterestsNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r10.c1 | Non-current payables to receivables shareholders and participating interests/Previous | venj-bw2-i:PayablesShareholdersParticipatingInterestsNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r11.c0 | Non-current taxes payable and social security contributions payable/Current | venj-bw2-i:TaxesSocialSecurityContributionsPayableNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r11.c1 | Non-current taxes payable and social security contributions payable/Previous | venj-bw2-i:TaxesSocialSecurityContributionsPayableNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r12.c0 | Tax payables/Current | rj-i:TaxPayables | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r12.c1 | Tax payables/Previous | rj-i:TaxPayables | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r13.c0 | Non-current pension related payables/Current | venj-bw2-i:PensionPayablesNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r13.c1 | Non-current pension related payables/Previous | venj-bw2-i:PensionPayablesNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r14.c0 | Negative goodwill/Current | rj-i:NegativeGoodwill | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r14.c1 | Negative goodwill/Previous | rj-i:NegativeGoodwill | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r15.c0 | Non-current other payables/Current | venj-bw2-i:PayablesOtherNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r15.c1 | Non-current other payables/Previous | venj-bw2-i:PayablesOtherNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r16.c0 | Non-current accruals and deferred income/Current | venj-bw2-i:AccrualsAndDeferredIncomeNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r16.c1 | Non-current accruals and deferred income/Previous | venj-bw2-i:AccrualsAndDeferredIncomeNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r17.c0 | Non-current liabilities/Current | venj-bw2-i:LiabilitiesNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r17.c1 | Non-current liabilities/Previous | venj-bw2-i:LiabilitiesNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |