kvk-table_NotesConsolidatedSharesOtherVariableYieldSecuritiesMovementBanksTable - Notes to the consolidated financial statements - Shares and other variable-yield securities: Movement [table]

Shares and other variable-yield securities
conceptvenj-bw2-i:SharesOtherVariableYieldSecuritiesy
period$FinancialReportingPeriodPreviousEndDateParamy
venj-bw2-dim:BasisOfPreparationAxis$BasisOfPreparationParamx
venj-bw2-dim:FinancialStatementsTypeAxisvenj-bw2-dm:ConsolidatedMemberx
Accumulated depreciation and impairment of shares and other variable-yield securities
conceptrj-i:SharesOtherVariableYieldSecuritiesAccumulatedDepreciationImpairmentsy
period$FinancialReportingPeriodPreviousEndDateParamy
venj-bw2-dim:BasisOfPreparationAxis$BasisOfPreparationParamx
venj-bw2-dim:FinancialStatementsTypeAxisvenj-bw2-dm:ConsolidatedMemberx
Accumulated revaluations of shares and other variable-yield securities
conceptrj-i:SharesOtherVariableYieldSecuritiesAccumulatedRevaluationsy
period$FinancialReportingPeriodPreviousEndDateParamy
venj-bw2-dim:BasisOfPreparationAxis$BasisOfPreparationParamx
venj-bw2-dim:FinancialStatementsTypeAxisvenj-bw2-dm:ConsolidatedMemberx
period$FinancialReportingPeriodPreviousEndDateParamy
venj-bw2-dim:BasisOfPreparationAxis$BasisOfPreparationParamx
venj-bw2-dim:FinancialStatementsTypeAxisvenj-bw2-dm:ConsolidatedMemberx
Additions to shares and other variable-yield securities
conceptrj-i:SharesOtherVariableYieldSecuritiesAdditionsy
period$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParamy
venj-bw2-dim:BasisOfPreparationAxis$BasisOfPreparationParamx
venj-bw2-dim:FinancialStatementsTypeAxisvenj-bw2-dm:ConsolidatedMemberx
Disposals of shares and other variable-yield securities
conceptrj-i:SharesOtherVariableYieldSecuritiesDisposalsy
period$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParamy
venj-bw2-dim:BasisOfPreparationAxis$BasisOfPreparationParamx
venj-bw2-dim:FinancialStatementsTypeAxisvenj-bw2-dm:ConsolidatedMemberx
Revaluations of shares and other variable-yield securities
conceptrj-i:SharesOtherVariableYieldSecuritiesRevaluationsy
period$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParamy
venj-bw2-dim:BasisOfPreparationAxis$BasisOfPreparationParamx
venj-bw2-dim:FinancialStatementsTypeAxisvenj-bw2-dm:ConsolidatedMemberx
Depreciation of shares and other variable-yield securities
conceptrj-i:SharesOtherVariableYieldSecuritiesDepreciationy
period$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParamy
venj-bw2-dim:BasisOfPreparationAxis$BasisOfPreparationParamx
venj-bw2-dim:FinancialStatementsTypeAxisvenj-bw2-dm:ConsolidatedMemberx
Depreciation of disposals of shares and other variable-yield securities
conceptrj-i:SharesOtherVariableYieldSecuritiesDisposalsDepreciationy
period$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParamy
venj-bw2-dim:BasisOfPreparationAxis$BasisOfPreparationParamx
venj-bw2-dim:FinancialStatementsTypeAxisvenj-bw2-dm:ConsolidatedMemberx
Impairment of shares and other variable-yield securities
conceptrj-i:SharesOtherVariableYieldSecuritiesImpairmenty
period$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParamy
venj-bw2-dim:BasisOfPreparationAxis$BasisOfPreparationParamx
venj-bw2-dim:FinancialStatementsTypeAxisvenj-bw2-dm:ConsolidatedMemberx
Reversal of impairment of shares and other variable-yield securities
conceptrj-i:SharesOtherVariableYieldSecuritiesImpairmentReversaly
period$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParamy
venj-bw2-dim:BasisOfPreparationAxis$BasisOfPreparationParamx
venj-bw2-dim:FinancialStatementsTypeAxisvenj-bw2-dm:ConsolidatedMemberx
Movement of shares and other variable-yield securities
conceptrj-i:SharesOtherVariableYieldSecuritiesMovementy
period$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParamy
venj-bw2-dim:BasisOfPreparationAxis$BasisOfPreparationParamx
venj-bw2-dim:FinancialStatementsTypeAxisvenj-bw2-dm:ConsolidatedMemberx
period$FinancialReportingPeriodCurrentStartDateParam/$FinancialReportingPeriodCurrentEndDateParamy
venj-bw2-dim:BasisOfPreparationAxis$BasisOfPreparationParamx
venj-bw2-dim:FinancialStatementsTypeAxisvenj-bw2-dm:ConsolidatedMemberx
Shares and other variable-yield securities
conceptvenj-bw2-i:SharesOtherVariableYieldSecuritiesy
period$FinancialReportingPeriodCurrentEndDateParamy
venj-bw2-dim:BasisOfPreparationAxis$BasisOfPreparationParamx
venj-bw2-dim:FinancialStatementsTypeAxisvenj-bw2-dm:ConsolidatedMemberx
Accumulated depreciation and impairment of shares and other variable-yield securities
conceptrj-i:SharesOtherVariableYieldSecuritiesAccumulatedDepreciationImpairmentsy
period$FinancialReportingPeriodCurrentEndDateParamy
venj-bw2-dim:BasisOfPreparationAxis$BasisOfPreparationParamx
venj-bw2-dim:FinancialStatementsTypeAxisvenj-bw2-dm:ConsolidatedMemberx
Accumulated revaluations of shares and other variable-yield securities
conceptrj-i:SharesOtherVariableYieldSecuritiesAccumulatedRevaluationsy
period$FinancialReportingPeriodCurrentEndDateParamy
venj-bw2-dim:BasisOfPreparationAxis$BasisOfPreparationParamx
venj-bw2-dim:FinancialStatementsTypeAxisvenj-bw2-dm:ConsolidatedMemberx
period$FinancialReportingPeriodCurrentEndDateParamy
venj-bw2-dim:BasisOfPreparationAxis$BasisOfPreparationParamx
venj-bw2-dim:FinancialStatementsTypeAxisvenj-bw2-dm:ConsolidatedMemberx