| r0.c0 | Investments in participating interests in group companies/kvk-table_NotesConsolidatedParticipatingInterestsMovementPensionFundsTable-x.1.1.1 | venj-bw2-i:InvestmentsInParticipatingInterestsInGroupCompanies | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r1.c0 | Other investments in participating interests/kvk-table_NotesConsolidatedParticipatingInterestsMovementPensionFundsTable-x.1.1.1 | venj-bw2-i:InvestmentsInParticipatingInterestsOther | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r2.c0 | Investments in participating interests/kvk-table_NotesConsolidatedParticipatingInterestsMovementPensionFundsTable-x.1.1.1 | venj-bw2-i:InvestmentsInParticipatingInterests | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r3.c0 | kvk-table_NotesConsolidatedParticipatingInterestsMovementPensionFundsTable-y.1/kvk-table_NotesConsolidatedParticipatingInterestsMovementPensionFundsTable-x.1.1.1 | | | | $FinancialReportingPeriodPreviousEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r4.c0 | Additions of financial assets/kvk-table_NotesConsolidatedParticipatingInterestsMovementPensionFundsTable-x.1.1.1 | venj-bw2-i:FinancialAssetsAdditions | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r5.c0 | Disposals of financial assets/kvk-table_NotesConsolidatedParticipatingInterestsMovementPensionFundsTable-x.1.1.1 | venj-bw2-i:FinancialAssetsDisposals | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r6.c0 | Depreciation on disposals of financial assets/kvk-table_NotesConsolidatedParticipatingInterestsMovementPensionFundsTable-x.1.1.1 | venj-bw2-i:FinancialAssetsDisposalsDepreciation | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r7.c0 | Revaluations of financial assets/kvk-table_NotesConsolidatedParticipatingInterestsMovementPensionFundsTable-x.1.1.1 | venj-bw2-i:FinancialAssetsRevaluations | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r8.c0 | Depreciation of financial assets/kvk-table_NotesConsolidatedParticipatingInterestsMovementPensionFundsTable-x.1.1.1 | venj-bw2-i:FinancialAssetsDepreciation | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r9.c0 | Impairment of financial assets recorded in income statement/kvk-table_NotesConsolidatedParticipatingInterestsMovementPensionFundsTable-x.1.1.1 | rj-i:ImpairmentFinancialAssetsRecordedInIncomeStatement | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r10.c0 | Reversal of impairment of financial assets recorded in income statement/kvk-table_NotesConsolidatedParticipatingInterestsMovementPensionFundsTable-x.1.1.1 | rj-i:ImpairmentFinancialAssetsReversalRecordedInIncomeStatement | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r11.c0 | Additions of financial assets through acquisitions/kvk-table_NotesConsolidatedParticipatingInterestsMovementPensionFundsTable-x.1.1.1 | rj-i:FinancialAssetsAdditionsThroughAcquisitions | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r12.c0 | Divestitures of financial assets/kvk-table_NotesConsolidatedParticipatingInterestsMovementPensionFundsTable-x.1.1.1 | rj-i:FinancialAssetsDivestitures | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r13.c0 | Exchange differences of financial assets/kvk-table_NotesConsolidatedParticipatingInterestsMovementPensionFundsTable-x.1.1.1 | rj-i:FinancialAssetsExchangeDifferences | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r14.c0 | Share in result of participating interests as part of financial assets/kvk-table_NotesConsolidatedParticipatingInterestsMovementPensionFundsTable-x.1.1.1 | rj-i:FinancialAssetsShareInResultParticipatingInterests | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r15.c0 | Dividend from participating interests as part of financial assets/kvk-table_NotesConsolidatedParticipatingInterestsMovementPensionFundsTable-x.1.1.1 | rj-i:FinancialAssetsDividendFromParticipatingInterests | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r16.c0 | Other movements in financial assets/kvk-table_NotesConsolidatedParticipatingInterestsMovementPensionFundsTable-x.1.1.1 | venj-bw2-i:FinancialAssetsMovementsOther | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r17.c0 | Movement in financial assets during the period/kvk-table_NotesConsolidatedParticipatingInterestsMovementPensionFundsTable-x.1.1.1 | venj-bw2-i:FinancialAssetsMovement | nl-types:monetaryNoDecimalsItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r18.c0 | kvk-table_NotesConsolidatedParticipatingInterestsMovementPensionFundsTable-y.2/kvk-table_NotesConsolidatedParticipatingInterestsMovementPensionFundsTable-x.1.1.1 | | | | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r19.c0 | Investments in participating interests in group companies/kvk-table_NotesConsolidatedParticipatingInterestsMovementPensionFundsTable-x.1.1.1 | venj-bw2-i:InvestmentsInParticipatingInterestsInGroupCompanies | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r20.c0 | Other investments in participating interests/kvk-table_NotesConsolidatedParticipatingInterestsMovementPensionFundsTable-x.1.1.1 | venj-bw2-i:InvestmentsInParticipatingInterestsOther | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r21.c0 | Investments in participating interests/kvk-table_NotesConsolidatedParticipatingInterestsMovementPensionFundsTable-x.1.1.1 | venj-bw2-i:InvestmentsInParticipatingInterests | nl-types:monetaryNoDecimalsItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |
| r22.c0 | kvk-table_NotesConsolidatedParticipatingInterestsMovementPensionFundsTable-y.3/kvk-table_NotesConsolidatedParticipatingInterestsMovementPensionFundsTable-x.1.1.1 | | | | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |