| r0.c0 | Technical provisions/kvk-table_NotesTechnicalProvisionsMovementInsuranceTable-x.1.1.1 | venj-bw2-i:TechnicalProvisions | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r1.c0 | kvk-table_NotesTechnicalProvisionsMovementInsuranceTable-y.1/kvk-table_NotesTechnicalProvisionsMovementInsuranceTable-x.1.1.1 | | | | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r2.c0 | Additions to provisions charged against the income statement/kvk-table_NotesTechnicalProvisionsMovementInsuranceTable-x.1.1.1 | rj-i:ProvisionsAdditionsChargedAgainstIncomeStatement | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r3.c0 | Yielded interest of provisions/kvk-table_NotesTechnicalProvisionsMovementInsuranceTable-x.1.1.1 | rj-i:ProvisionsYieldedInterest | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r4.c0 | Additions to provisions through revaluation reserve/kvk-table_NotesTechnicalProvisionsMovementInsuranceTable-x.1.1.1 | rj-i:ProvisionsAdditionsThroughRevaluationReserve | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r5.c0 | Other additions to provisions/kvk-table_NotesTechnicalProvisionsMovementInsuranceTable-x.1.1.1 | rj-i:ProvisionsAdditionsOther | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r6.c0 | Additions to provisions/kvk-table_NotesTechnicalProvisionsMovementInsuranceTable-x.1.1.1 | rj-i:ProvisionsAdditions | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r7.c0 | Withdrawals from provisions due to profit sharing allocated to technical provisions/kvk-table_NotesTechnicalProvisionsMovementInsuranceTable-x.1.1.1 | rj-i:ProvisionsWithdrawalsProfitSharingAllocatedToTechnicalProvisions | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r8.c0 | Revisions of decision for profit sharing of provisions/kvk-table_NotesTechnicalProvisionsMovementInsuranceTable-x.1.1.1 | rj-i:ProvisionRevisionsDecisionProfitSharing | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r9.c0 | Reversal of additions to provisions through revaluation reserve/kvk-table_NotesTechnicalProvisionsMovementInsuranceTable-x.1.1.1 | rj-i:ProvisionsReversalAdditionsThroughRevaluationReserve | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r10.c0 | Other withdrawals of provisions/kvk-table_NotesTechnicalProvisionsMovementInsuranceTable-x.1.1.1 | rj-i:ProvisionsWithdrawalsOther | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r11.c0 | Withdrawals of provisions/kvk-table_NotesTechnicalProvisionsMovementInsuranceTable-x.1.1.1 | rj-i:ProvisionsWithdrawals | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r12.c0 | Movement during the period of technical provisions/kvk-table_NotesTechnicalProvisionsMovementInsuranceTable-x.1.1.1 | rj-i:TechnicalProvisionsMovement | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r13.c0 | kvk-table_NotesTechnicalProvisionsMovementInsuranceTable-y.2/kvk-table_NotesTechnicalProvisionsMovementInsuranceTable-x.1.1.1 | | | | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r14.c0 | Technical provisions/kvk-table_NotesTechnicalProvisionsMovementInsuranceTable-x.1.1.1 | venj-bw2-i:TechnicalProvisions | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r15.c0 | kvk-table_NotesTechnicalProvisionsMovementInsuranceTable-y.3/kvk-table_NotesTechnicalProvisionsMovementInsuranceTable-x.1.1.1 | | | | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |