| r0.c0 | Balance sheet before or after appropriation of results/Current | venj-bw2-i:BalanceSheetBeforeAfterAppropriationResults | venj-codes:profitAppropriationItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r0.c1 | Balance sheet before or after appropriation of results/Previous | venj-bw2-i:BalanceSheetBeforeAfterAppropriationResults | venj-codes:profitAppropriationItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r1.c0 | Investments in land and buildings for own use/Current | venj-bw2-i:InvestmentsInLandAndBuildingsForOwnUse | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r1.c1 | Investments in land and buildings for own use/Previous | venj-bw2-i:InvestmentsInLandAndBuildingsForOwnUse | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r2.c0 | Other investments in land and buildings/Current | venj-bw2-i:InvestmentsInLandAndBuildingsOther | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r2.c1 | Other investments in land and buildings/Previous | venj-bw2-i:InvestmentsInLandAndBuildingsOther | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r3.c0 | Investments in land and buildings/Current | venj-bw2-i:InvestmentsInLandAndBuildings | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r3.c1 | Investments in land and buildings/Previous | venj-bw2-i:InvestmentsInLandAndBuildings | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r4.c0 | Investments in participating interests in group companies/Current | venj-bw2-i:InvestmentsInParticipatingInterestsInGroupCompanies | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r4.c1 | Investments in participating interests in group companies/Previous | venj-bw2-i:InvestmentsInParticipatingInterestsInGroupCompanies | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r5.c0 | Bonds issued by and receivables from group companies/Current | venj-bw2-i:BondsIssuedByAndReceivablesFromGroupCompanies | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r5.c1 | Bonds issued by and receivables from group companies/Previous | venj-bw2-i:BondsIssuedByAndReceivablesFromGroupCompanies | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r6.c0 | Other investments in participating interests/Current | venj-bw2-i:InvestmentsInParticipatingInterestsOther | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r6.c1 | Other investments in participating interests/Previous | venj-bw2-i:InvestmentsInParticipatingInterestsOther | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r7.c0 | Bonds issued by and receivables from shareholders and participating interests/Current | venj-bw2-i:BondsIssuedByAndReceivablesFromShareholdersParticipatingInterests | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r7.c1 | Bonds issued by and receivables from shareholders and participating interests/Previous | venj-bw2-i:BondsIssuedByAndReceivablesFromShareholdersParticipatingInterests | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r8.c0 | Investments, group companies and participating interests/Current | venj-bw2-i:InvestmentsInGroupCompaniesAndParticipatingInterests | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r8.c1 | Investments, group companies and participating interests/Previous | venj-bw2-i:InvestmentsInGroupCompaniesAndParticipatingInterests | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r9.c0 | Shares, securities with participating rights and other variable yield securities/Current | venj-bw2-i:SharesSecuritiesWithParticipatingRightsAndOtherVariableYieldSecurities | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r9.c1 | Shares, securities with participating rights and other variable yield securities/Previous | venj-bw2-i:SharesSecuritiesWithParticipatingRightsAndOtherVariableYieldSecurities | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r10.c0 | Bonds and other fixed-income securities/Current | venj-bw2-i:BondsOtherFixedIncomeSecurities | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r10.c1 | Bonds and other fixed-income securities/Previous | venj-bw2-i:BondsOtherFixedIncomeSecurities | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r11.c0 | Receivables from mortgage loans/Current | venj-bw2-i:ReceivablesFromMortgageLoans | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r11.c1 | Receivables from mortgage loans/Previous | venj-bw2-i:ReceivablesFromMortgageLoans | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r12.c0 | Receivables from other loans/Current | venj-bw2-i:ReceivablesFromOtherLoans | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r12.c1 | Receivables from other loans/Previous | venj-bw2-i:ReceivablesFromOtherLoans | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r13.c0 | Deposits at credit institutions/Current | venj-bw2-i:DepositsAtCreditInstitutions | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r13.c1 | Deposits at credit institutions/Previous | venj-bw2-i:DepositsAtCreditInstitutions | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r14.c0 | Other types of financial investments/Current | venj-bw2-i:OtherFinancialInvestmentsOther | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r14.c1 | Other types of financial investments/Previous | venj-bw2-i:OtherFinancialInvestmentsOther | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r15.c0 | Other financial investments/Current | venj-bw2-i:FinancialInvestmentsOther | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r15.c1 | Other financial investments/Previous | venj-bw2-i:FinancialInvestmentsOther | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r16.c0 | Investments/Current | venj-bw2-i:Investments | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r16.c1 | Investments/Previous | venj-bw2-i:Investments | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r17.c0 | Receivables relating to securities transactions from commission agents/Current | venj-bw2-i:ReceivablesRelatingToSecuritiesTransactionsFromCommissionAgents | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r17.c1 | Receivables relating to securities transactions from commission agents/Previous | venj-bw2-i:ReceivablesRelatingToSecuritiesTransactionsFromCommissionAgents | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r18.c0 | Receivables relating to securities transactions from other parties/Current | venj-bw2-i:ReceivablesRelatingToSecuritiesTransactionsFromOtherParties | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r18.c1 | Receivables relating to securities transactions from other parties/Previous | venj-bw2-i:ReceivablesRelatingToSecuritiesTransactionsFromOtherParties | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r19.c0 | Receivables relating to securities transactions/Current | venj-bw2-i:ReceivablesRelatingToSecuritiesTransactions | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r19.c1 | Receivables relating to securities transactions/Previous | venj-bw2-i:ReceivablesRelatingToSecuritiesTransactions | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r20.c0 | Other receivables/Current | venj-bw2-i:ReceivablesOther | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r20.c1 | Other receivables/Previous | venj-bw2-i:ReceivablesOther | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r21.c0 | Prepayments and accrued income/Current | venj-bw2-i:AccruedIncome | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r21.c1 | Prepayments and accrued income/Previous | venj-bw2-i:AccruedIncome | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r22.c0 | Receivables/Current | venj-bw2-i:Receivables | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r22.c1 | Receivables/Previous | venj-bw2-i:Receivables | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r23.c0 | Intangible assets/Current | venj-bw2-i:IntangibleAssets | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r23.c1 | Intangible assets/Previous | venj-bw2-i:IntangibleAssets | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r24.c0 | Property, plant and equipment/Current | venj-bw2-i:PropertyPlantEquipment | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r24.c1 | Property, plant and equipment/Previous | venj-bw2-i:PropertyPlantEquipment | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r25.c0 | Financial assets/Current | venj-bw2-i:FinancialAssets | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r25.c1 | Financial assets/Previous | venj-bw2-i:FinancialAssets | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r26.c0 | Non-current assets/Current | venj-bw2-i:AssetsNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r26.c1 | Non-current assets/Previous | venj-bw2-i:AssetsNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r27.c0 | Cash and cash equivalents/Current | venj-bw2-i:CashAndCashEquivalents | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r27.c1 | Cash and cash equivalents/Previous | venj-bw2-i:CashAndCashEquivalents | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r28.c0 | Other types of other assets/Current | venj-bw2-i:OtherAssetsOther | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r28.c1 | Other types of other assets/Previous | venj-bw2-i:OtherAssetsOther | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r29.c0 | Other assets/Current | venj-bw2-i:AssetsOther | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r29.c1 | Other assets/Previous | venj-bw2-i:AssetsOther | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r30.c0 | Assets/Current | venj-bw2-i:Assets | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r30.c1 | Assets/Previous | venj-bw2-i:Assets | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r31.c0 | Equity/Current | venj-bw2-i:Equity | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r31.c1 | Equity/Previous | venj-bw2-i:Equity | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r32.c0 | Non-controlling interest/Current | venj-bw2-i:NoncontrollingInterest | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r32.c1 | Non-controlling interest/Previous | venj-bw2-i:NoncontrollingInterest | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r33.c0 | Group equity/Current | venj-bw2-i:EquityGroup | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r33.c1 | Group equity/Previous | venj-bw2-i:EquityGroup | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r34.c0 | Subordinated liabilities/Current | venj-bw2-i:SubordinatedLiabilities | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r34.c1 | Subordinated liabilities/Previous | venj-bw2-i:SubordinatedLiabilities | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r35.c0 | Provisions/Current | venj-bw2-i:Provisions | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r35.c1 | Provisions/Previous | venj-bw2-i:Provisions | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r36.c0 | Non-current payables relating to securities transactions to commission agents/Current | venj-bw2-i:LiabilitiesRelatingToSecuritiesTransactionsToCommissionAgentsNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r36.c1 | Non-current payables relating to securities transactions to commission agents/Previous | venj-bw2-i:LiabilitiesRelatingToSecuritiesTransactionsToCommissionAgentsNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r37.c0 | Non-current payables relating to securities transactions to other parties/Current | venj-bw2-i:LiabilitiesRelatingToSecuritiesTransactionsToOtherPartiesNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r37.c1 | Non-current payables relating to securities transactions to other parties/Previous | venj-bw2-i:LiabilitiesRelatingToSecuritiesTransactionsToOtherPartiesNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r38.c0 | Non-current Liabilities relating to securities transactions/Current | venj-bw2-i:LiabilitiesRelatingToSecuritiesTransactionsNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r38.c1 | Non-current Liabilities relating to securities transactions/Previous | venj-bw2-i:LiabilitiesRelatingToSecuritiesTransactionsNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r39.c0 | Non-current convertible borrowings/Current | venj-bw2-i:ConvertibleBorrowingsNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r39.c1 | Non-current convertible borrowings/Previous | venj-bw2-i:ConvertibleBorrowingsNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r40.c0 | Non-current other debentures and private loans/Current | venj-bw2-i:DebenturesOtherPrivateLoansNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r40.c1 | Non-current other debentures and private loans/Previous | venj-bw2-i:DebenturesOtherPrivateLoansNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r41.c0 | Non-current payables to credit institutions/Current | venj-bw2-i:PayablesCreditInstitutionsNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r41.c1 | Non-current payables to credit institutions/Previous | venj-bw2-i:PayablesCreditInstitutionsNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r42.c0 | Non-current cheques and bills of exchange payables/Current | venj-bw2-i:BillsExchangeChequesPayableNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r42.c1 | Non-current cheques and bills of exchange payables/Previous | venj-bw2-i:BillsExchangeChequesPayableNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r43.c0 | Non-current payables to group companies/Current | venj-bw2-i:PayablesGroupCompaniesNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r43.c1 | Non-current payables to group companies/Previous | venj-bw2-i:PayablesGroupCompaniesNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r44.c0 | Non-current payables to receivables shareholders and participating interests/Current | venj-bw2-i:PayablesShareholdersParticipatingInterestsNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r44.c1 | Non-current payables to receivables shareholders and participating interests/Previous | venj-bw2-i:PayablesShareholdersParticipatingInterestsNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r45.c0 | Non-current taxes payable and social security contributions payable/Current | venj-bw2-i:TaxesSocialSecurityContributionsPayableNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r45.c1 | Non-current taxes payable and social security contributions payable/Previous | venj-bw2-i:TaxesSocialSecurityContributionsPayableNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r46.c0 | Non-current pension related payables/Current | venj-bw2-i:PensionPayablesNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r46.c1 | Non-current pension related payables/Previous | venj-bw2-i:PensionPayablesNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r47.c0 | Non-current other payables/Current | venj-bw2-i:PayablesOtherNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r47.c1 | Non-current other payables/Previous | venj-bw2-i:PayablesOtherNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r48.c0 | Non-current accruals and deferred income/Current | venj-bw2-i:AccrualsAndDeferredIncomeNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r48.c1 | Non-current accruals and deferred income/Previous | venj-bw2-i:AccrualsAndDeferredIncomeNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r49.c0 | Non-current liabilities/Current | venj-bw2-i:LiabilitiesNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r49.c1 | Non-current liabilities/Previous | venj-bw2-i:LiabilitiesNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r50.c0 | Current liabilities relating to securities transactions to commission agents/Current | venj-bw2-i:LiabilitiesRelatingToSecuritiesTransactionsToCommissionAgentsCurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r50.c1 | Current liabilities relating to securities transactions to commission agents/Previous | venj-bw2-i:LiabilitiesRelatingToSecuritiesTransactionsToCommissionAgentsCurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r51.c0 | Current liabilities relating to securities transactions to other parties/Current | venj-bw2-i:LiabilitiesRelatingToSecuritiesTransactionsToOtherPartiesCurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r51.c1 | Current liabilities relating to securities transactions to other parties/Previous | venj-bw2-i:LiabilitiesRelatingToSecuritiesTransactionsToOtherPartiesCurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r52.c0 | Current liabilities relating to securities transactions/Current | venj-bw2-i:LiabilitiesRelatingToSecuritiesTransactionsCurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r52.c1 | Current liabilities relating to securities transactions/Previous | venj-bw2-i:LiabilitiesRelatingToSecuritiesTransactionsCurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r53.c0 | Current convertible borrowings/Current | venj-bw2-i:ConvertibleBorrowingsCurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r53.c1 | Current convertible borrowings/Previous | venj-bw2-i:ConvertibleBorrowingsCurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r54.c0 | Current other debentures and private loans/Current | venj-bw2-i:DebenturesOtherPrivateLoansCurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r54.c1 | Current other debentures and private loans/Previous | venj-bw2-i:DebenturesOtherPrivateLoansCurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r55.c0 | Current payables to credit institutions/Current | venj-bw2-i:PayablesCreditInstitutionsCurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r55.c1 | Current payables to credit institutions/Previous | venj-bw2-i:PayablesCreditInstitutionsCurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r56.c0 | Current bills of exchange and cheques payable/Current | venj-bw2-i:BillsExchangeChequesPayableCurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r56.c1 | Current bills of exchange and cheques payable/Previous | venj-bw2-i:BillsExchangeChequesPayableCurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r57.c0 | Current payables to group companies/Current | venj-bw2-i:PayablesGroupCompaniesCurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r57.c1 | Current payables to group companies/Previous | venj-bw2-i:PayablesGroupCompaniesCurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r58.c0 | Current payables to receivables shareholders and participating interests/Current | venj-bw2-i:PayablesShareholdersParticipatingInterestsCurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r58.c1 | Current payables to receivables shareholders and participating interests/Previous | venj-bw2-i:PayablesShareholdersParticipatingInterestsCurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r59.c0 | Current taxes payable and social security contributions payable/Current | venj-bw2-i:TaxesSocialSecurityContributionsPayableCurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r59.c1 | Current taxes payable and social security contributions payable/Previous | venj-bw2-i:TaxesSocialSecurityContributionsPayableCurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r60.c0 | Current pension related payables/Current | venj-bw2-i:PensionPayablesCurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r60.c1 | Current pension related payables/Previous | venj-bw2-i:PensionPayablesCurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r61.c0 | Creditors/Current | rj-i:Creditors | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r61.c1 | Creditors/Previous | rj-i:Creditors | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r62.c0 | Current other payables/Current | venj-bw2-i:PayablesOtherCurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r62.c1 | Current other payables/Previous | venj-bw2-i:PayablesOtherCurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r63.c0 | Current accruals and deferred income/Current | venj-bw2-i:AccrualsAndDeferredIncomeCurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r63.c1 | Current accruals and deferred income/Previous | venj-bw2-i:AccrualsAndDeferredIncomeCurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r64.c0 | Current liabilities/Current | venj-bw2-i:LiabilitiesCurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r64.c1 | Current liabilities/Previous | venj-bw2-i:LiabilitiesCurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r65.c0 | Other equity and liabilities/Current | rj-i:EquityAndLiabilitiesOther | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r65.c1 | Other equity and liabilities/Previous | rj-i:EquityAndLiabilitiesOther | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r66.c0 | Equity and liabilities/Current | venj-bw2-i:EquityAndLiabilities | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r66.c1 | Equity and liabilities/Previous | venj-bw2-i:EquityAndLiabilities | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |