| r0.c0 | Disclosure of decrease in value of non-current securities and investments in participating interests/kvk-table_NotesConsolidatedDecreaseInValueOfNoncurrentSecuritiesAndInvestmentsInParticipatingInterestsBanksTable-x.1.1.1 | venj-bw2-i:DecreaseInValueOfNoncurrentSecuritiesAndInvestmentsInParticipatingInterestsDisclosure | nl-types:formattedExplanationItemType | duration | $FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | venj-bw2-dm:ConsolidatedMember |