| r0.c0 | Balance sheet before or after appropriation of results/Current | jenv-bw2-i:BalanceSheetBeforeAfterAppropriationResults | jenv-codes:profitAppropriationItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r0.c1 | Balance sheet before or after appropriation of results/Previous | jenv-bw2-i:BalanceSheetBeforeAfterAppropriationResults | jenv-codes:profitAppropriationItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r1.c0 | Intangible assets/Current | jenv-bw2-i:IntangibleAssets | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r1.c1 | Intangible assets/Previous | jenv-bw2-i:IntangibleAssets | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r2.c0 | Investments in land and buildings/Current | jenv-bw2-i:InvestmentsInLandAndBuildings | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r2.c1 | Investments in land and buildings/Previous | jenv-bw2-i:InvestmentsInLandAndBuildings | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r3.c0 | Investments, group companies and participating interests/Current | jenv-bw2-i:InvestmentsInGroupCompaniesAndParticipatingInterests | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r3.c1 | Investments, group companies and participating interests/Previous | jenv-bw2-i:InvestmentsInGroupCompaniesAndParticipatingInterests | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r4.c0 | Other financial investments/Current | jenv-bw2-i:FinancialInvestmentsOther | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r4.c1 | Other financial investments/Previous | jenv-bw2-i:FinancialInvestmentsOther | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r5.c0 | Deposits at insurers/Current | jenv-bw2-i:DepositsAtInsurers | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r5.c1 | Deposits at insurers/Previous | jenv-bw2-i:DepositsAtInsurers | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r6.c0 | Investments/Current | jenv-bw2-i:Investments | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r6.c1 | Investments/Previous | jenv-bw2-i:Investments | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r7.c0 | Investments/Current | kvk-abstr:InvestmentsTitle | xbrli:stringItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r7.c1 | Investments/Previous | kvk-abstr:InvestmentsTitle | xbrli:stringItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r8.c0 | Investments for risk of policyholders and investments of annual life funds/Current | jenv-bw2-i:InvestmentsForRiskOfPolicyHoldersAndInvestmentsOfAnnualLifeFunds | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r8.c1 | Investments for risk of policyholders and investments of annual life funds/Previous | jenv-bw2-i:InvestmentsForRiskOfPolicyHoldersAndInvestmentsOfAnnualLifeFunds | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r9.c0 | Receivables of direct insurance/Current | jenv-bw2-i:ReceivablesOfDirectInsurance | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r9.c1 | Receivables of direct insurance/Previous | jenv-bw2-i:ReceivablesOfDirectInsurance | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r10.c0 | Receivables from reinsurance/Current | jenv-bw2-i:ReceivablesFromReinsurance | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r10.c1 | Receivables from reinsurance/Previous | jenv-bw2-i:ReceivablesFromReinsurance | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r11.c0 | Other receivables/Current | jenv-bw2-i:ReceivablesOther | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r11.c1 | Other receivables/Previous | jenv-bw2-i:ReceivablesOther | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r12.c0 | Receivables from central cash and health care insurance fund/Current | rj-i:ReceivablesFromCentralCashAndHealthCareInsuranceFund | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r12.c1 | Receivables from central cash and health care insurance fund/Previous | rj-i:ReceivablesFromCentralCashAndHealthCareInsuranceFund | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r13.c0 | Called-up contributions for issued share capital/Current | jenv-bw2-i:CalledUpShareCapital | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r13.c1 | Called-up contributions for issued share capital/Previous | jenv-bw2-i:CalledUpShareCapital | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r14.c0 | Receivables/Current | jenv-bw2-i:Receivables | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r14.c1 | Receivables/Previous | jenv-bw2-i:Receivables | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r15.c0 | Receivables/Current | kvk-abstr:ReceivablesTitle | xbrli:stringItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r15.c1 | Receivables/Previous | kvk-abstr:ReceivablesTitle | xbrli:stringItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r16.c0 | Property plant equipment and inventories/Current | jenv-bw2-i:PropertyPlantEquipmentAndInventories | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r16.c1 | Property plant equipment and inventories/Previous | jenv-bw2-i:PropertyPlantEquipmentAndInventories | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r17.c0 | Cash and cash equivalents/Current | jenv-bw2-i:CashAndCashEquivalents | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r17.c1 | Cash and cash equivalents/Previous | jenv-bw2-i:CashAndCashEquivalents | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r18.c0 | Other types of other assets/Current | jenv-bw2-i:OtherAssetsOther | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r18.c1 | Other types of other assets/Previous | jenv-bw2-i:OtherAssetsOther | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r19.c0 | Other assets/Current | jenv-bw2-i:AssetsOther | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r19.c1 | Other assets/Previous | jenv-bw2-i:AssetsOther | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r20.c0 | Other assets/Current | kvk-abstr:AssetsOtherTitle | xbrli:stringItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r20.c1 | Other assets/Previous | kvk-abstr:AssetsOtherTitle | xbrli:stringItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r21.c0 | Accrued interest receivable and accrued rent/Current | jenv-bw2-i:AccruedInterestReceivableAndAccruedRent | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r21.c1 | Accrued interest receivable and accrued rent/Previous | jenv-bw2-i:AccruedInterestReceivableAndAccruedRent | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r22.c0 | Deferred acquisition costs/Current | jenv-bw2-i:DeferredAcquisitionCosts | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r22.c1 | Deferred acquisition costs/Previous | jenv-bw2-i:DeferredAcquisitionCosts | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r23.c0 | Other accrued income/Current | jenv-bw2-i:AccruedIncomeOther | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r23.c1 | Other accrued income/Previous | jenv-bw2-i:AccruedIncomeOther | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r24.c0 | Prepayments and accrued income/Current | jenv-bw2-i:AccruedIncome | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r24.c1 | Prepayments and accrued income/Previous | jenv-bw2-i:AccruedIncome | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r25.c0 | Accrued income/Current | kvk-abstr:AccruedIncomeKvkTitle | xbrli:stringItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r25.c1 | Accrued income/Previous | kvk-abstr:AccruedIncomeKvkTitle | xbrli:stringItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r26.c0 | Assets/Current | jenv-bw2-i:Assets | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r26.c1 | Assets/Previous | jenv-bw2-i:Assets | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r27.c0 | Assets/Current | kvk-abstr:AssetsTitle | xbrli:stringItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r27.c1 | Assets/Previous | kvk-abstr:AssetsTitle | xbrli:stringItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r28.c0 | Equity/Current | jenv-bw2-i:Equity | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r28.c1 | Equity/Previous | jenv-bw2-i:Equity | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r29.c0 | Share in group equity not accrued to legal entity/Current | jenv-bw2-i:NoncontrollingInterest | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r29.c1 | Share in group equity not accrued to legal entity/Previous | jenv-bw2-i:NoncontrollingInterest | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r30.c0 | Group equity/Current | jenv-bw2-i:EquityGroup | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r30.c1 | Group equity/Previous | jenv-bw2-i:EquityGroup | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r31.c0 | Group equity/Current | kvk-abstr:EquityGroupTitle | xbrli:stringItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r31.c1 | Group equity/Previous | kvk-abstr:EquityGroupTitle | xbrli:stringItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r32.c0 | Subordinated liabilities/Current | jenv-bw2-i:SubordinatedLiabilities | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r32.c1 | Subordinated liabilities/Previous | jenv-bw2-i:SubordinatedLiabilities | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r33.c0 | Gross technical provisions for unearned premiums and unexpired risks/Current | jenv-bw2-i:TechnicalProvisionsUnearnedPremiumsUnexpiredRisksGross | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r33.c1 | Gross technical provisions for unearned premiums and unexpired risks/Previous | jenv-bw2-i:TechnicalProvisionsUnearnedPremiumsUnexpiredRisksGross | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r34.c0 | Reinsurance portion of technical provisions for unearned premiums and unexpired risks/Current | jenv-bw2-i:TechnicalProvisionsUnearnedPremiumsUnexpiredRisksReinsuredPart | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r34.c1 | Reinsurance portion of technical provisions for unearned premiums and unexpired risks/Previous | jenv-bw2-i:TechnicalProvisionsUnearnedPremiumsUnexpiredRisksReinsuredPart | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r35.c0 | Technical provisions for unearned premiums and unexpired risks/Current | jenv-bw2-i:TechnicalProvisionsUnearnedPremiumsUnexpiredRisks | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r35.c1 | Technical provisions for unearned premiums and unexpired risks/Previous | jenv-bw2-i:TechnicalProvisionsUnearnedPremiumsUnexpiredRisks | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r36.c0 | Technical provisions unearned premiums unexpired risks/Current | kvk-abstr:TechnicalProvisionsUnearnedPremiumsUnexpiredRisksTitle | xbrli:stringItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r36.c1 | Technical provisions unearned premiums unexpired risks/Previous | kvk-abstr:TechnicalProvisionsUnearnedPremiumsUnexpiredRisksTitle | xbrli:stringItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r37.c0 | Gross technical provisions for life insurance/Current | jenv-bw2-i:TechnicalProvisionsLifeInsuranceGross | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r37.c1 | Gross technical provisions for life insurance/Previous | jenv-bw2-i:TechnicalProvisionsLifeInsuranceGross | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r38.c0 | Reinsurance part of technical provisions for life insurance/Current | jenv-bw2-i:TechnicalProvisionsLifeInsuranceReinsuredPart | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r38.c1 | Reinsurance part of technical provisions for life insurance/Previous | jenv-bw2-i:TechnicalProvisionsLifeInsuranceReinsuredPart | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r39.c0 | Technical provisions for life insurance/Current | jenv-bw2-i:TechnicalProvisionsLifeInsurance | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r39.c1 | Technical provisions for life insurance/Previous | jenv-bw2-i:TechnicalProvisionsLifeInsurance | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r40.c0 | Technical provisions life insurance/Current | kvk-abstr:TechnicalProvisionsLifeInsuranceTitle | xbrli:stringItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r40.c1 | Technical provisions life insurance/Previous | kvk-abstr:TechnicalProvisionsLifeInsuranceTitle | xbrli:stringItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r41.c0 | Gross technical provisions for damages or benefits payable/Current | jenv-bw2-i:TechnicalProvisionsForDamagesOrBenefitsPayableGross | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r41.c1 | Gross technical provisions for damages or benefits payable/Previous | jenv-bw2-i:TechnicalProvisionsForDamagesOrBenefitsPayableGross | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r42.c0 | Reinsurance part of technical provisions for damages or benefits payable/Current | jenv-bw2-i:TechnicalProvisionsForDamagesOrBenefitsPayableReinsuredPart | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r42.c1 | Reinsurance part of technical provisions for damages or benefits payable/Previous | jenv-bw2-i:TechnicalProvisionsForDamagesOrBenefitsPayableReinsuredPart | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r43.c0 | Technical provisions for damages or benefits payable/Current | jenv-bw2-i:TechnicalProvisionsForDamagesOrBenefitsPayable | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r43.c1 | Technical provisions for damages or benefits payable/Previous | jenv-bw2-i:TechnicalProvisionsForDamagesOrBenefitsPayable | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r44.c0 | Technical provisions for damages or benefits payable/Current | kvk-abstr:TechnicalProvisionsForDamagesOrBenefitsPayableTitle | xbrli:stringItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r44.c1 | Technical provisions for damages or benefits payable/Previous | kvk-abstr:TechnicalProvisionsForDamagesOrBenefitsPayableTitle | xbrli:stringItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r45.c0 | Gross technical provisions for profit sharing and discounts/Current | jenv-bw2-i:TechnicalProvisionsProfitSharingAndDiscountsGross | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r45.c1 | Gross technical provisions for profit sharing and discounts/Previous | jenv-bw2-i:TechnicalProvisionsProfitSharingAndDiscountsGross | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r46.c0 | Reinsurance part of technical provisions for profit sharing and discounts/Current | jenv-bw2-i:TechnicalProvisionsProfitSharingAndDiscountsReinsuredPart | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r46.c1 | Reinsurance part of technical provisions for profit sharing and discounts/Previous | jenv-bw2-i:TechnicalProvisionsProfitSharingAndDiscountsReinsuredPart | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r47.c0 | Technical provisions for profit sharing and discounts/Current | jenv-bw2-i:TechnicalProvisionsProfitSharingAndDiscounts | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r47.c1 | Technical provisions for profit sharing and discounts/Previous | jenv-bw2-i:TechnicalProvisionsProfitSharingAndDiscounts | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r48.c0 | Technical provisions for profit sharing and discounts/Current | kvk-abstr:TechnicalProvisionsProfitSharingAndDiscountsTitle | xbrli:stringItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r48.c1 | Technical provisions for profit sharing and discounts/Previous | kvk-abstr:TechnicalProvisionsProfitSharingAndDiscountsTitle | xbrli:stringItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r49.c0 | Gross equalisation reserve/Current | jenv-bw2-i:EqualisationReserveGross | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r49.c1 | Gross equalisation reserve/Previous | jenv-bw2-i:EqualisationReserveGross | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r50.c0 | Reinsurance part of the equalisation reserve/Current | jenv-bw2-i:EqualisationReserveReinsuredPart | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r50.c1 | Reinsurance part of the equalisation reserve/Previous | jenv-bw2-i:EqualisationReserveReinsuredPart | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r51.c0 | Equalisation reserve/Current | jenv-bw2-i:EqualisationReserve | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r51.c1 | Equalisation reserve/Previous | jenv-bw2-i:EqualisationReserve | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r52.c0 | Equalisation reserve/Current | kvk-abstr:EqualisationReserveTitle | xbrli:stringItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r52.c1 | Equalisation reserve/Previous | kvk-abstr:EqualisationReserveTitle | xbrli:stringItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r53.c0 | Gross other technical provisions/Current | jenv-bw2-i:TechnicalProvisionsOtherGross | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r53.c1 | Gross other technical provisions/Previous | jenv-bw2-i:TechnicalProvisionsOtherGross | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r54.c0 | Reinsurance part of other technical provisions/Current | jenv-bw2-i:TechnicalProvisionsOtherReinsuredPart | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r54.c1 | Reinsurance part of other technical provisions/Previous | jenv-bw2-i:TechnicalProvisionsOtherReinsuredPart | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r55.c0 | Other technical provisions/Current | jenv-bw2-i:TechnicalProvisionsOther | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r55.c1 | Other technical provisions/Previous | jenv-bw2-i:TechnicalProvisionsOther | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r56.c0 | Other technical provisions/Current | kvk-abstr:TechnicalProvisionsOtherTitle | xbrli:stringItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r56.c1 | Other technical provisions/Previous | kvk-abstr:TechnicalProvisionsOtherTitle | xbrli:stringItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r57.c0 | Technical provisions/Current | jenv-bw2-i:TechnicalProvisions | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r57.c1 | Technical provisions/Previous | jenv-bw2-i:TechnicalProvisions | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r58.c0 | Technical provisions/Current | kvk-abstr:TechnicalProvisionsTitle | xbrli:stringItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r58.c1 | Technical provisions/Previous | kvk-abstr:TechnicalProvisionsTitle | xbrli:stringItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r59.c0 | Gross technical provisions for insurance where investments are for risk of policy holders and annual life funds/Current | jenv-bw2-i:TechnicalProvisionsForInsuranceWhereInvestmentsAreForRiskOfPolicyHoldersAndAnnualLifeFundsGross | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r59.c1 | Gross technical provisions for insurance where investments are for risk of policy holders and annual life funds/Previous | jenv-bw2-i:TechnicalProvisionsForInsuranceWhereInvestmentsAreForRiskOfPolicyHoldersAndAnnualLifeFundsGross | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r60.c0 | Reinsurance part of technical provisions for insurance where investments are for risk of policy holders and annual life funds/Current | jenv-bw2-i:TechnicalProvisionsForInsuranceWhereInvestmentsAreForRiskOfPolicyHoldersAndAnnualLifeFundsReinsuredPart | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r60.c1 | Reinsurance part of technical provisions for insurance where investments are for risk of policy holders and annual life funds/Previous | jenv-bw2-i:TechnicalProvisionsForInsuranceWhereInvestmentsAreForRiskOfPolicyHoldersAndAnnualLifeFundsReinsuredPart | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r61.c0 | Technical provisions for insurance where investments are for risk of policy holders and annual life funds/Current | jenv-bw2-i:TechnicalProvisionsForInsuranceWhereInvestmentsAreForRiskOfPolicyHoldersAndAnnualLifeFunds | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r61.c1 | Technical provisions for insurance where investments are for risk of policy holders and annual life funds/Previous | jenv-bw2-i:TechnicalProvisionsForInsuranceWhereInvestmentsAreForRiskOfPolicyHoldersAndAnnualLifeFunds | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r62.c0 | Technical provisions for insurance where investments are for risk of policy holders and annual life funds/Current | kvk-abstr:TechnicalProvisionsForInsuranceWhereInvestmentsAreForRiskOfPolicyHoldersAndAnnualLifeFundsKvkTitle | xbrli:stringItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r62.c1 | Technical provisions for insurance where investments are for risk of policy holders and annual life funds/Previous | kvk-abstr:TechnicalProvisionsForInsuranceWhereInvestmentsAreForRiskOfPolicyHoldersAndAnnualLifeFundsKvkTitle | xbrli:stringItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r63.c0 | Provisions/Current | jenv-bw2-i:Provisions | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r63.c1 | Provisions/Previous | jenv-bw2-i:Provisions | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r64.c0 | Deposits of reinsurers/Current | jenv-bw2-i:DepositsOfReinsurers | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r64.c1 | Deposits of reinsurers/Previous | jenv-bw2-i:DepositsOfReinsurers | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r65.c0 | Payables in respect of direct insurance/Current | jenv-bw2-i:PayablesDirectInsurance | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r65.c1 | Payables in respect of direct insurance/Previous | jenv-bw2-i:PayablesDirectInsurance | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r66.c0 | Payables relating to reinsurance/Current | jenv-bw2-i:PayablesReinsurance | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r66.c1 | Payables relating to reinsurance/Previous | jenv-bw2-i:PayablesReinsurance | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r67.c0 | Convertible borrowings/Current | jenv-bw2-i:ConvertibleBorrowings | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r67.c1 | Convertible borrowings/Previous | jenv-bw2-i:ConvertibleBorrowings | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r68.c0 | Debentures, mortgage bonds and other loans/Current | jenv-bw2-i:DebenturesOtherPrivateLoans | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r68.c1 | Debentures, mortgage bonds and other loans/Previous | jenv-bw2-i:DebenturesOtherPrivateLoans | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r69.c0 | Payables to banks/Current | jenv-bw2-i:PayablesBanks | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r69.c1 | Payables to banks/Previous | jenv-bw2-i:PayablesBanks | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r70.c0 | Other payables/Current | jenv-bw2-i:PayablesOther | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r70.c1 | Other payables/Previous | jenv-bw2-i:PayablesOther | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r71.c0 | Payables relating to taxes and social security contributions/Current | jenv-bw2-i:TaxesSocialSecurityContributionsPayable | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r71.c1 | Payables relating to taxes and social security contributions/Previous | jenv-bw2-i:TaxesSocialSecurityContributionsPayable | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r72.c0 | Pension related payables/Current | jenv-bw2-i:PensionPayables | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r72.c1 | Pension related payables/Previous | jenv-bw2-i:PensionPayables | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r73.c0 | Payables to central cash and health care insurance fund/Current | rj-i:PayablesCentralCashAndHealthCareInsuranceFund | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r73.c1 | Payables to central cash and health care insurance fund/Previous | rj-i:PayablesCentralCashAndHealthCareInsuranceFund | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r74.c0 | Liabilities/Current | jenv-bw2-i:Liabilities | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r74.c1 | Liabilities/Previous | jenv-bw2-i:Liabilities | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r75.c0 | Liabilities/Current | kvk-abstr:LiabilitiesTitle | xbrli:stringItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r75.c1 | Liabilities/Previous | kvk-abstr:LiabilitiesTitle | xbrli:stringItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r76.c0 | Accruals and deferred income/Current | jenv-bw2-i:AccrualsAndDeferredIncome | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r76.c1 | Accruals and deferred income/Previous | jenv-bw2-i:AccrualsAndDeferredIncome | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r77.c0 | Equity and liabilities/Current | jenv-bw2-i:EquityAndLiabilities | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r77.c1 | Equity and liabilities/Previous | jenv-bw2-i:EquityAndLiabilities | nl-types:monetaryNoDecimals20ItemType | instant | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r78.c0 | Equity and liabilities/Current | kvk-abstr:EquityAndLiabilitiesTitle | xbrli:stringItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |
| r78.c1 | Equity and liabilities/Previous | kvk-abstr:EquityAndLiabilitiesTitle | xbrli:stringItemType | duration | $BasisOfPreparationParam | jenv-bw2-dm:ConsolidatedMember |