| r0.c0 | Policy of intangible assets/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:IntangibleAssetsPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r1.c0 | Policy of costs of incorporation and share issue/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:CostsIncorporationShareIssuePolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r2.c0 | Policy of development costs/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:DevelopmentCostsPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r3.c0 | Policy of patents, trademarks and other rights/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:PatentsTrademarksOtherRightsPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r4.c0 | Policy of goodwill/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:GoodwillPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r5.c0 | Policy of prepayments of intangible assets/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:PrepaymentsIntangibleAssetsPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r6.c0 | Policy of intangible assets other/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | rj-i:IntangibleAssetsOtherPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r7.c0 | Policy of future profit margins of the acquired portfolio/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | rj-i:FutureProfitMarginsAcquiredPortfolioPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r8.c0 | Policy of investments/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:InvestmentsPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r9.c0 | Policy of investments in land and buildings/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:InvestmentsInLandAndBuildingsPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r10.c0 | Policy of investments in land and buildings for own use/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:InvestmentsInLandAndBuildingsForOwnUsePolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r11.c0 | Policy of other investments in land and buildings/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:InvestmentsInLandAndBuildingsOtherPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r12.c0 | Policy of investments, group companies and participating interests/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:InvestmentsInGroupCompaniesAndParticipatingInterestsPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r13.c0 | Policy of bonds issued by and receivables from group companies/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:BondsIssuedByAndReceivablesFromGroupCompaniesPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r14.c0 | Policy of investments in group companies/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:InvestmentsInParticipatingInterestsInGroupCompaniesPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r15.c0 | Policy of bonds issued by and receivables from shareholders and participating interests/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:BondsIssuedByAndReceivablesFromShareholdersParticipatingInterestsPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r16.c0 | Policy of other investments in participating interests/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:InvestmentsInParticipatingInterestsOtherPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r17.c0 | Policy of other financial investments/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:FinancialInvestmentsOtherPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r18.c0 | Policy of shares, securities with participating rights and other variable yield securities/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:SharesSecuritiesWithParticipatingRightsAndOtherVariableYieldSecuritiesPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r19.c0 | Policy of bonds and other fixed-income securities/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:BondsOtherFixedIncomeSecuritiesPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r20.c0 | Policy of interests in investment pools/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:InterestsInInvestmentPoolsPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r21.c0 | Policy of receivables from mortgage loans/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:ReceivablesFromMortgageLoansPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r22.c0 | Policy of receivables from other loans/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:ReceivablesFromOtherLoansPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r23.c0 | Policy of deposits at credit institutions/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:DepositsAtCreditInstitutionsPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r24.c0 | Policy of other types of other financial investments/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:OtherFinancialInvestmentsOtherPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r25.c0 | Policy of deposits at insurers/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:DepositsAtInsurersPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r26.c0 | Policy of investments for risk of policyholders and investments of annual life funds/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:InvestmentsForRiskOfPolicyHoldersAndInvestmentsOfAnnualLifeFundsPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r27.c0 | Policy of separated investment deposits of collective agreements for risk of policyholders/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | rj-i:InvestmentsSeparateDepositsCollectiveAgreementsForRiskOfPolicyholdersPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r28.c0 | Policy of receivables/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:ReceivablesPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r29.c0 | Policy of receivables of direct insurance/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:ReceivablesOfDirectInsurancePolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r30.c0 | Policy of receivables of direct insurance from intermediaries/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:ReceivablesOfDirectInsuranceFromIntermediariesPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r31.c0 | Policy of receivables of direct insurance from policyholders/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:ReceivablesOfDirectInsuranceFromPolicyHoldersPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r32.c0 | Policy of receivables from deferred profit sharing/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | rj-i:ReceivablesFromDeferredProfitSharingPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r33.c0 | Policy of receivables from reinsurance/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:ReceivablesFromReinsurancePolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r34.c0 | Policy of other receivables/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:ReceivablesOtherPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r35.c0 | Policy of receivables from central cash health care insurance fund/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | rj-i:ReceivablesFromCentralCashAndHealthCareInsuranceFundPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r36.c0 | Policy of receivables from central cash/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | rj-i:ReceivablesCentralCashPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r37.c0 | Policy of receivables from healthcare providers/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | rj-i:ReceivablesFromHealthcareProvidersPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r38.c0 | Policy of pension receivables/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | rj-i:PensionReceivablesPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r39.c0 | Policy of called-up share capital/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:CalledUpShareCapitalPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r40.c0 | Policy of other assets/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:AssetsOtherPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r41.c0 | Policy of property plant equipment and inventories/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:PropertyPlantEquipmentAndInventoriesPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r42.c0 | Policy of cash and cash equivalents/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:CashAndCashEquivalentsPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r43.c0 | Policy of other types of other assets/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:OtherAssetsOtherPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r44.c0 | Policy of prepayments and accrued income/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:AccruedIncomePolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r45.c0 | Policy of accrued interest receivable and accrued rent/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:AccruedInterestReceivableAndAccruedRentPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r46.c0 | Policy of deferred acquisition costs/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:DeferredAcquisitionCostsPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r47.c0 | Policy of other accrued income/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:AccruedIncomeOtherPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r48.c0 | Policy of derivative financial instruments/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:DerivativeFinancialInstrumentsPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r49.c0 | Policy of group equity/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:EquityGroupPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r50.c0 | Policy of equity/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:EquityPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r51.c0 | Policy of non-controlling interest/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:NoncontrollingInterestPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r52.c0 | Policy of subordinated liabilities/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:SubordinatedLiabilitiesPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r53.c0 | Policy of technical provisions/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:TechnicalProvisionsPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r54.c0 | Policy of technical provisions for unearned premiums and unexpired risks/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:TechnicalProvisionsUnearnedPremiumsUnexpiredRisksPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r55.c0 | Policy of gross technical provisions for unearned premiums and unexpired risks/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:TechnicalProvisionsUnearnedPremiumsUnexpiredRisksGrossPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r56.c0 | Policy of reinsured part of technical provisions for unearned premiums and unexpired risks/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:TechnicalProvisionsUnearnedPremiumsUnexpiredRisksReinsuredPartPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r57.c0 | Policy of technical provisions for life insurance/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:TechnicalProvisionsLifeInsurancePolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r58.c0 | Policy of gross technical provisions for life insurance/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:TechnicalProvisionsLifeInsuranceGrossPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r59.c0 | Policy of reinsured part of technical provisions for life insurance/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:TechnicalProvisionsLifeInsuranceReinsuredPartPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r60.c0 | Policy of technical provisions for damages or benefits payable/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:TechnicalProvisionsForDamagesOrBenefitsPayablePolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r61.c0 | Policy of gross technical provisions for damages or benefits payable/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:TechnicalProvisionsForDamagesOrBenefitsPayableGrossPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r62.c0 | Policy of reinsured part of technical provisions for damages or benefits payable/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:TechnicalProvisionsForDamagesOrBenefitsPayableReinsuredPartPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r63.c0 | Policy of technical provisions for profit sharing and discounts/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:TechnicalProvisionsProfitSharingAndDiscountsPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r64.c0 | Policy of gross technical provisions for profit sharing and discounts/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:TechnicalProvisionsProfitSharingAndDiscountsGrossPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r65.c0 | Policy of reinsured part of technical provisions for profit sharing and discounts/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:TechnicalProvisionsProfitSharingAndDiscountsReinsuredPartPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r66.c0 | Policy of liability relating to minimum return guarantee/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | rj-i:MinimumReturnGuaranteeLiabilityPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r67.c0 | Policy of catastrophe provision/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | rj-i:CatastropheProvisionPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r68.c0 | Policy of reserve for discretionary profit sharing/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | rj-i:ReserveDiscretionaryProfitSharingPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r69.c0 | Policy of equalisation reserve/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:EqualisationReservePolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r70.c0 | Policy of gross equalisation reserve/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:EqualisationReserveGrossPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r71.c0 | Policy of reinsured part of the equalisation reserve/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:EqualisationReserveReinsuredPartPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r72.c0 | Policy of other technical provisions/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:TechnicalProvisionsOtherPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r73.c0 | Policy of gross other technical provisions/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:TechnicalProvisionsOtherGrossPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r74.c0 | Policy of reinsured part of other technical provisions/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:TechnicalProvisionsOtherReinsuredPartPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r75.c0 | Policy of technical provisions for insurance where investments are for risk of policy holders and annual life funds/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:TechnicalProvisionsForInsuranceWhereInvestmentsAreForRiskOfPolicyHoldersAndAnnualLifeFundsPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r76.c0 | Policy of gross technical provisions for insurance where investments are for risk of policy holders and annual life funds/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:TechnicalProvisionsForInsuranceWhereInvestmentsAreForRiskOfPolicyHoldersAndAnnualLifeFundsGrossPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r77.c0 | Policy of reinsured part of technical provisions for insurance where investments are for risk of policy holders and annual life funds/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:TechnicalProvisionsForInsuranceWhereInvestmentsAreForRiskOfPolicyHoldersAndAnnualLifeFundsReinsuredPartPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r78.c0 | Policy of provisions/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:ProvisionsPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r79.c0 | Policy of provision for pension obligations/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:ProvisionPensionObligationsPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r80.c0 | Policy of provision for tax liabilities/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:ProvisionTaxLiabilitiesPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r81.c0 | Policy of other provisions/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:ProvisionsOtherPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r82.c0 | Policy of deposits of reinsurers/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:DepositsOfReinsurersPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r83.c0 | Policy of liabilities/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:LiabilitiesPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r84.c0 | Policy of payables in respect of direct insurance/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:PayablesDirectInsurancePolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r85.c0 | Policy of payables relating to reinsurance/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:PayablesReinsurancePolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r86.c0 | Policy of convertible borrowings/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:ConvertibleBorrowingsPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r87.c0 | Policy of other debentures and private loans/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:DebenturesOtherPrivateLoansPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r88.c0 | Policy of payables to credit institutions/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:PayablesCreditInstitutionsPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r89.c0 | Policy of other payables/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:PayablesOtherPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r90.c0 | Policy of pension related payables/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:PensionPayablesPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r91.c0 | Policy of non-current pension related payables/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:PensionPayablesNoncurrentPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r92.c0 | Policy of current pension related payables/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:PensionPayablesCurrentPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r93.c0 | Policy of payables to central cash health care insurance fund/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | rj-i:PayablesCentralCashAndHealthCareInsuranceFundPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r94.c0 | Policy of accruals and deferred income/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | venj-bw2-i:AccrualsAndDeferredIncomePolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r95.c0 | Policy of payables to central cash/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | rj-i:PayablesCentralCashPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r96.c0 | Policy of payables to healthcare providers/kvk-table_NotesConsolidatedAccountingPrinciplesAssetsLiabilitiesInsuranceTable-x.1.1.1 | rj-i:PayablesHealthcareProvidersPolicy | nl-types:string100000ItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |