| r0.c0 | Income from independent rental properties/Current | bzk-ti-i:IncomeIndependentRentalProperties | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r0.c1 | Income from independent rental properties/Previous | bzk-ti-i:IncomeIndependentRentalProperties | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r1.c0 | Income from dependent rental properties/Current | bzk-ti-i:IncomeDependentHousingUnits | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r1.c1 | Income from dependent rental properties/Previous | bzk-ti-i:IncomeDependentHousingUnits | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r2.c0 | Intramural income (from operating activities)/Current | bzk-ti-i:IntramuralIncomeClassifiedAsOperatingActivities | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r2.c1 | Intramural income (from operating activities)/Previous | bzk-ti-i:IntramuralIncomeClassifiedAsOperatingActivities | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r3.c0 | Income from social (DAEB) or commercial (non-DAEB) real estate/Current | bzk-ti-i:IncomeSocialCommercialRealEstate | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r3.c1 | Income from social (DAEB) or commercial (non-DAEB) real estate/Previous | bzk-ti-i:IncomeSocialCommercialRealEstate | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r4.c0 | Income from parking facilities/Current | bzk-ti-i:IncomeParkingFacilities | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r4.c1 | Income from parking facilities/Previous | bzk-ti-i:IncomeParkingFacilities | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r5.c0 | Rental income (from operating activities)/Current | bzk-ti-i:RentalIncomeClassifiedAsOperatingActivities | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r5.c1 | Rental income (from operating activities)/Previous | bzk-ti-i:RentalIncomeClassifiedAsOperatingActivities | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r6.c0 | Reimbursements/Current | bzk-ti-i:Reimbursements | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r6.c1 | Reimbursements/Previous | bzk-ti-i:Reimbursements | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r7.c0 | Receipts government/Current | bzk-ti-i:ReceiptsGovernment | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r7.c1 | Receipts government/Previous | bzk-ti-i:ReceiptsGovernment | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r8.c0 | Other receipts companies/Current | bzk-ti-i:ReceiptsCompaniesOther | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r8.c1 | Other receipts companies/Previous | bzk-ti-i:ReceiptsCompaniesOther | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r9.c0 | Interest received (from operating activities)/Current | rj-i:InterestReceivedClassifiedAsOperatingActivities | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r9.c1 | Interest received (from operating activities)/Previous | rj-i:InterestReceivedClassifiedAsOperatingActivities | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r10.c0 | Cash inflows/Current | bzk-ti-i:BalanceCashInflows | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r10.c1 | Cash inflows/Previous | bzk-ti-i:BalanceCashInflows | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r11.c0 | Ground lease expenses (from operating activities)/Current | bzk-ti-i:GroundLeaseExpensesClassifiedAsOperatingActivities | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r11.c1 | Ground lease expenses (from operating activities)/Previous | bzk-ti-i:GroundLeaseExpensesClassifiedAsOperatingActivities | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r12.c0 | Wages and salaries (from operating activities)/Current | bzk-ti-i:WagesSalariesClassifiedAsOperatingActivities | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r12.c1 | Wages and salaries (from operating activities)/Previous | bzk-ti-i:WagesSalariesClassifiedAsOperatingActivities | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r13.c0 | Social security contributions (from operating activities)/Current | bzk-ti-i:SocialSecurityContributionsClassifiedAsOperatingActivities | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r13.c1 | Social security contributions (from operating activities)/Previous | bzk-ti-i:SocialSecurityContributionsClassifiedAsOperatingActivities | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r14.c0 | Pension costs (from operating activities)/Current | bzk-ti-i:PensionCostsClassifiedAsOperatingActivities | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r14.c1 | Pension costs (from operating activities)/Previous | bzk-ti-i:PensionCostsClassifiedAsOperatingActivities | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r15.c0 | Payments to employees/Current | rj-i:PaymentsEmployees | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r15.c1 | Payments to employees/Previous | rj-i:PaymentsEmployees | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r16.c0 | Maintenance expenses (from operating activities)/Current | bzk-ti-i:MaintenanceExpensesClassifiedAsOperatingExpenses | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r16.c1 | Maintenance expenses (from operating activities)/Previous | bzk-ti-i:MaintenanceExpensesClassifiedAsOperatingExpenses | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r17.c0 | Other operating expenses (from operating activities)/Current | bzk-ti-i:OperatingExpensesOtherClassifiedAsOperatingExpenses | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r17.c1 | Other operating expenses (from operating activities)/Previous | bzk-ti-i:OperatingExpensesOtherClassifiedAsOperatingExpenses | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r18.c0 | Interest paid (from operating activities)/Current | rj-i:InterestPaidClassifiedAsOperatingActivities | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r18.c1 | Interest paid (from operating activities)/Previous | rj-i:InterestPaidClassifiedAsOperatingActivities | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r19.c0 | Sector specific levy independent of results/Current | bzk-ti-i:SectorSpecificLevyIndependentOfResult | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r19.c1 | Sector specific levy independent of results/Previous | bzk-ti-i:SectorSpecificLevyIndependentOfResult | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r20.c0 | Lessor levy/Current | bzk-ti-i:LessorLevy | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r20.c1 | Lessor levy/Previous | bzk-ti-i:LessorLevy | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r21.c0 | Liveability expenses external expenses non-investment related/Current | bzk-ti-i:LiveabilityExpensesExternalExpensesNoninvestmentRelated | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r21.c1 | Liveability expenses external expenses non-investment related/Previous | bzk-ti-i:LiveabilityExpensesExternalExpensesNoninvestmentRelated | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r22.c0 | Corporate tax/Current | bzk-ti-i:CorporateTaxClassifiedAsOperatingActivities | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r22.c1 | Corporate tax/Previous | bzk-ti-i:CorporateTaxClassifiedAsOperatingActivities | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r23.c0 | Cash outflows/Current | bzk-ti-i:BalanceCashOutflows | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r23.c1 | Cash outflows/Previous | bzk-ti-i:BalanceCashOutflows | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r24.c0 | Cash flows from (used in) operating activities/Current | rj-i:CashFlowOperatingActivities | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r24.c1 | Cash flows from (used in) operating activities/Previous | rj-i:CashFlowOperatingActivities | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r25.c0 | Sales income from rent of housing and non-housing units/Current | bzk-ti-i:SalesIncomeRentOfHousingAndNonHousingUnits | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r25.c1 | Sales income from rent of housing and non-housing units/Previous | bzk-ti-i:SalesIncomeRentOfHousingAndNonHousingUnits | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r26.c0 | Sales income of housing units (VOV) after purchase in dPi period/Current | bzk-ti-i:SalesIncomeHousingUnitsVOVAfterPurchaseInDPIPeriod | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r26.c1 | Sales income of housing units (VOV) after purchase in dPi period/Previous | bzk-ti-i:SalesIncomeHousingUnitsVOVAfterPurchaseInDPIPeriod | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r27.c0 | Sales income new buildings, housing and non-housing units/Current | bzk-ti-i:SalesIncomeNewBuildingsHousingAndNonHousingUnits | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r27.c1 | Sales income new buildings, housing and non-housing units/Previous | bzk-ti-i:SalesIncomeNewBuildingsHousingAndNonHousingUnits | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r28.c0 | Sales income land/Current | bzk-ti-i:SalesIncomeLand | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r28.c1 | Sales income land/Previous | bzk-ti-i:SalesIncomeLand | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r29.c0 | Dinvestment and investment proceeds other/Current | bzk-ti-i:DinvestmentInvestmentProceedsOther | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r29.c1 | Dinvestment and investment proceeds other/Previous | bzk-ti-i:DinvestmentInvestmentProceedsOther | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r30.c0 | Proceeds from sales of property, plant and equipment/Current | rj-i:ProceedsSalesPropertyPlantAndEquipment | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r30.c1 | Proceeds from sales of property, plant and equipment/Previous | rj-i:ProceedsSalesPropertyPlantAndEquipment | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r31.c0 | Payments new buildings rent, housing and non-housing units/Current | bzk-ti-i:PaymentsNewBuildingsRentHousingAndNonHousingUnits | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r31.c1 | Payments new buildings rent, housing and non-housing units/Previous | bzk-ti-i:PaymentsNewBuildingsRentHousingAndNonHousingUnits | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r32.c0 | Payments accommodation improvements, housing and non-housing units/Current | bzk-ti-i:PaymentsAccommodationImprovementsHousingAndNonHousingUnits | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r32.c1 | Payments accommodation improvements, housing and non-housing units/Previous | bzk-ti-i:PaymentsAccommodationImprovementsHousingAndNonHousingUnits | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r33.c0 | Liveability external expenses project related/Current | bzk-ti-i:LiveabilityExternalExpensesProjectRelated | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r33.c1 | Liveability external expenses project related/Previous | bzk-ti-i:LiveabilityExternalExpensesProjectRelated | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r34.c0 | Purchase housing and non-housing units/Current | bzk-ti-i:PurchaseHousingAndNonHousingUnits | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r34.c1 | Purchase housing and non-housing units/Previous | bzk-ti-i:PurchaseHousingAndNonHousingUnits | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r35.c0 | New buildings sale, housing and non-housing units/Current | bzk-ti-i:NewBuildingsSaleHousingAndNonHousingUnits | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r35.c1 | New buildings sale, housing and non-housing units/Previous | bzk-ti-i:NewBuildingsSaleHousingAndNonHousingUnits | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r36.c0 | Purchase housing units (VOV) for resale/Current | bzk-ti-i:PurchaseHousingUnitsVOVForResale | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r36.c1 | Purchase housing units (VOV) for resale/Previous | bzk-ti-i:PurchaseHousingUnitsVOVForResale | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r37.c0 | Demolition expenses, housing and non-housing units/Current | bzk-ti-i:DemolitionExpensesHousingAndNonHousingUnits | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r37.c1 | Demolition expenses, housing and non-housing units/Previous | bzk-ti-i:DemolitionExpensesHousingAndNonHousingUnits | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r38.c0 | Purchase land/Current | bzk-ti-i:PurchaseLand | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r38.c1 | Purchase land/Previous | bzk-ti-i:PurchaseLand | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r39.c0 | Other investments from investing activities/Current | bzk-ti-i:InvestmentOtherFromInvestingActivities | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r39.c1 | Other investments from investing activities/Previous | bzk-ti-i:InvestmentOtherFromInvestingActivities | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r40.c0 | External cost at sale/Current | bzk-ti-i:ExternalCostAtSale | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r40.c1 | External cost at sale/Previous | bzk-ti-i:ExternalCostAtSale | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r41.c0 | Purchase of property, plant and equipment/Current | rj-i:PurchasePropertyPlantEquipment | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r41.c1 | Purchase of property, plant and equipment/Previous | rj-i:PurchasePropertyPlantEquipment | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r42.c0 | Incoming and outgoing cashflow property plant equipment/Current | bzk-ti-i:CashFlowPPEActivities | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r42.c1 | Incoming and outgoing cashflow property plant equipment/Previous | bzk-ti-i:CashFlowPPEActivities | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r43.c0 | Income compounds/Current | bzk-ti-i:IncomeCompounds | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r43.c1 | Income compounds/Previous | bzk-ti-i:IncomeCompounds | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r44.c0 | Income other/Current | bzk-ti-i:IncomeOtherClassifiedAsInvestingProperties | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r44.c1 | Income other/Previous | bzk-ti-i:IncomeOtherClassifiedAsInvestingProperties | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r45.c0 | Expenses compound/Current | bzk-ti-i:ExpensesCompound | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r45.c1 | Expenses compound/Previous | bzk-ti-i:ExpensesCompound | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r46.c0 | Expenses other (from investing activities)/Current | bzk-ti-i:ExpensesOtherClassifiedAsInvestingActivities | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r46.c1 | Expenses other (from investing activities)/Previous | bzk-ti-i:ExpensesOtherClassifiedAsInvestingActivities | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r47.c0 | Balance incoming and outgoing cashflow financial fixed assets/Current | bzk-ti-i:BalanceFinancialFixedAssets | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r47.c1 | Balance incoming and outgoing cashflow financial fixed assets/Previous | bzk-ti-i:BalanceFinancialFixedAssets | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r48.c0 | Cash flows from (used in) investing activities/Current | rj-i:CashFlowInvestingActivities | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r48.c1 | Cash flows from (used in) investing activities/Previous | rj-i:CashFlowInvestingActivities | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r49.c0 | New loans secured by WSW/Current | bzk-ti-i:NewWSWSecuredLoans | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r49.c1 | New loans secured by WSW/Previous | bzk-ti-i:NewWSWSecuredLoans | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r50.c0 | New DAEB investments loans not secured by WSW/Current | bzk-ti-i:NewDAEBInvestmentNonWSWSecuredLoans | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r50.c1 | New DAEB investments loans not secured by WSW/Previous | bzk-ti-i:NewDAEBInvestmentNonWSWSecuredLoans | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r51.c0 | New non-DAEB investments loans not secured by WSW/Current | bzk-ti-i:NewNonDAEBInvestmentNonWSWSecuredLoans | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r51.c1 | New non-DAEB investments loans not secured by WSW/Previous | bzk-ti-i:NewNonDAEBInvestmentNonWSWSecuredLoans | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r52.c0 | Redemption secured by WSW/Current | bzk-ti-i:RedemptionWSWSecuredLoans | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r52.c1 | Redemption secured by WSW/Previous | bzk-ti-i:RedemptionWSWSecuredLoans | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r53.c0 | Redemption DAEB investments loans not secured by WSW/Current | bzk-ti-i:RedemptionDAEBInvestmentNonWSWSecuredLoans | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r53.c1 | Redemption DAEB investments loans not secured by WSW/Previous | bzk-ti-i:RedemptionDAEBInvestmentNonWSWSecuredLoans | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r54.c0 | Redemption non-DAEB investments loans not secured by WSW/Current | bzk-ti-i:RedemptionNonDAEBInvestmentNonWSWSecuredLoans | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r54.c1 | Redemption non-DAEB investments loans not secured by WSW/Previous | bzk-ti-i:RedemptionNonDAEBInvestmentNonWSWSecuredLoans | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r55.c0 | Cash flows from (used in) financing activities/Current | rj-i:CashFlowFinancingActivities | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r55.c1 | Cash flows from (used in) financing activities/Previous | rj-i:CashFlowFinancingActivities | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r56.c0 | Net cash flows/Current | rj-i:NetCashFlows | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r56.c1 | Net cash flows/Previous | rj-i:NetCashFlows | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r57.c0 | Changes in short-term loans cash and cash equivalents/Current | bzk-ti-i:ChangesShortTermCashAndCashEquivalents | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r57.c1 | Changes in short-term loans cash and cash equivalents/Previous | bzk-ti-i:ChangesShortTermCashAndCashEquivalents | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r58.c0 | Increase (decrease) in cash and cash equivalents/Current | rj-i:IncreaseDecreaseCashAndCashEquivalents | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r58.c1 | Increase (decrease) in cash and cash equivalents/Previous | rj-i:IncreaseDecreaseCashAndCashEquivalents | nl-types:monetaryNoDecimalsItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r59.c0 | Cash and cash equivalents (cash flow)/Current | rj-i:CashAndCashEquivalentsCashFlow | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r59.c1 | Cash and cash equivalents (cash flow)/Previous | rj-i:CashAndCashEquivalentsCashFlow | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r60.c0 | Cash and cash equivalents (cash flow)/Current | rj-i:CashAndCashEquivalentsCashFlow | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r60.c1 | Cash and cash equivalents (cash flow)/Previous | rj-i:CashAndCashEquivalentsCashFlow | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |