false--12-31FY20182018-12-310001535929YesfalseLarge Accelerated FilerfalsefalseNoYes4436600000045241000000353000000115000000255000000990000000.010.0190000000090000000027007829427243174517198267315097818450000000085000000840000001500000003430000000.03251.551.50.08420.0550.0570.05650.0480.010.07630.07250.06970.03650.0290.08420.010.07630.0697P3Y23000000220000000354000000000.500.650.140.300.370.060.500.650.140.300.370.060.25P5YP6DP6D0002200000005000000P3YP20YP20Y0340000000.016050000000020000001080000001060000003250000000.01325000325000008000000000P3YP1YP3YP1Y1.5000.0000.3330.3330.3331.5000.0001.000980956211214535610080000001823000000182400000000.10.0500.10.050.10.0500.10.0500.010.250.500.500.100.000.000.000.020.250.500.500.100.000.000.000.020.150.300.300.000.000.000.150.300.300.000.000.000.000.000.000.000.000.000.000.000.300.500.500.000.000.000.000.000.300.500.500.000.000.000.000.000.150.250.250.000.000.000.150.250.250.000.000.000.0630.000.0010.000.0650.000.0010.000.0110.00540.00020.00020.0120.00840.00380.00380.03420.01950.03390.02570.02530.02530.02420.02450.02460.02520.03510.03390.0750.0751.0011.001.251.51.001.251.51.51.001.251.51.001.250.810.80.50.900.70.60.810.80.50.900.70.60.80.90.7100.800.60.50.80.90.7100.800.60.5P5YP5YP3YP5YP3Y 0001535929 2019-02-15 0001535929 2018-01-01 2018-12-31 0001535929 2018-06-30 0001535929 2017-12-31 0001535929 2018-12-31 0001535929 voya:LimitedPartnershipsCorporationsMember 2018-12-31 0001535929 us-gaap:OtherAssetsMember 2018-12-31 0001535929 us-gaap:CashAndCashEquivalentsMember 2018-12-31 0001535929 us-gaap:CashAndCashEquivalentsMember 2017-12-31 0001535929 us-gaap:LoansReceivableMember 2017-12-31 0001535929 us-gaap:CollateralPledgedMember 2017-12-31 0001535929 us-gaap:OtherAssetsMember 2017-12-31 0001535929 us-gaap:CollateralPledgedMember 2018-12-31 0001535929 us-gaap:LoansReceivableMember 2018-12-31 0001535929 voya:LimitedPartnershipsCorporationsMember 2017-12-31 0001535929 2017-01-01 2017-12-31 0001535929 2016-01-01 2016-12-31 0001535929 us-gaap:CommonStockMember 2018-01-01 2018-12-31 0001535929 us-gaap:RetainedEarningsUnappropriatedMember 2016-12-31 0001535929 srt:ScenarioPreviouslyReportedMember us-gaap:TreasuryStockMember 2016-12-31 0001535929 us-gaap:TreasuryStockMember 2016-01-01 2016-12-31 0001535929 us-gaap:AccountingStandardsUpdate201413Member us-gaap:CommonStockMember 2015-12-31 0001535929 us-gaap:NoncontrollingInterestMember 2018-01-01 2018-12-31 0001535929 us-gaap:AdditionalPaidInCapitalMember 2016-01-01 2016-12-31 0001535929 us-gaap:NoncontrollingInterestMember 2016-01-01 2016-12-31 0001535929 srt:ScenarioPreviouslyReportedMember 2017-12-31 0001535929 us-gaap:PreferredStockMember 2018-01-01 2018-12-31 0001535929 us-gaap:AccountingStandardsUpdate201609Member us-gaap:PreferredStockMember 2016-12-31 0001535929 us-gaap:AccountingStandardsUpdate201502Member us-gaap:RetainedEarningsUnappropriatedMember 2015-12-31 0001535929 us-gaap:RetainedEarningsAppropriatedMember 2017-01-01 2017-12-31 0001535929 us-gaap:CommonStockMember 2016-01-01 2016-12-31 0001535929 us-gaap:ParentMember 2016-01-01 2016-12-31 0001535929 us-gaap:RetainedEarningsUnappropriatedMember 2016-01-01 2016-12-31 0001535929 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2017-12-31 0001535929 us-gaap:NoncontrollingInterestMember 2017-01-01 2017-12-31 0001535929 us-gaap:TreasuryStockMember 2018-01-01 2018-12-31 0001535929 us-gaap:ParentMember 2017-01-01 2017-12-31 0001535929 srt:ScenarioPreviouslyReportedMember us-gaap:RetainedEarningsUnappropriatedMember 2015-12-31 0001535929 srt:ScenarioPreviouslyReportedMember us-gaap:PreferredStockMember 2015-12-31 0001535929 srt:ScenarioPreviouslyReportedMember us-gaap:CommonStockMember 2016-12-31 0001535929 2015-12-31 0001535929 us-gaap:AdditionalPaidInCapitalMember 2018-01-01 2018-12-31 0001535929 us-gaap:AccountingStandardsUpdate201409Member us-gaap:RetainedEarningsAppropriatedMember 2017-12-31 0001535929 us-gaap:RetainedEarningsUnappropriatedMember 2017-01-01 2017-12-31 0001535929 us-gaap:ParentMember 2018-01-01 2018-12-31 0001535929 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2016-01-01 2016-12-31 0001535929 us-gaap:AccountingStandardsUpdate201409Member us-gaap:CommonStockMember 2017-12-31 0001535929 us-gaap:TreasuryStockMember 2017-01-01 2017-12-31 0001535929 us-gaap:AccountingStandardsUpdate201609Member us-gaap:ParentMember 2016-12-31 0001535929 srt:ScenarioPreviouslyReportedMember us-gaap:RetainedEarningsUnappropriatedMember 2016-12-31 0001535929 us-gaap:AdditionalPaidInCapitalMember 2017-12-31 0001535929 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2018-01-01 2018-12-31 0001535929 us-gaap:CommonStockMember 2017-01-01 2017-12-31 0001535929 us-gaap:AdditionalPaidInCapitalMember 2017-01-01 2017-12-31 0001535929 us-gaap:PreferredStockMember 2017-01-01 2017-12-31 0001535929 us-gaap:AccountingStandardsUpdate201609Member us-gaap:RetainedEarningsAppropriatedMember 2016-12-31 0001535929 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2017-01-01 2017-12-31 0001535929 us-gaap:PreferredStockMember 2016-01-01 2016-12-31 0001535929 us-gaap:PreferredStockMember 2017-12-31 0001535929 us-gaap:TreasuryStockMember 2016-12-31 0001535929 us-gaap:AccountingStandardsUpdate201601Member us-gaap:RetainedEarningsAppropriatedMember 2017-12-31 0001535929 us-gaap:RetainedEarningsAppropriatedMember 2018-01-01 2018-12-31 0001535929 us-gaap:AccountingStandardsUpdate201409Member us-gaap:ParentMember 2017-12-31 0001535929 us-gaap:PreferredStockMember 2018-12-31 0001535929 us-gaap:ParentMember 2015-12-31 0001535929 us-gaap:RetainedEarningsUnappropriatedMember 2018-01-01 2018-12-31 0001535929 us-gaap:AccountingStandardsUpdate201502Member us-gaap:RetainedEarningsAppropriatedMember 2015-12-31 0001535929 us-gaap:NoncontrollingInterestMember 2018-12-31 0001535929 us-gaap:RetainedEarningsAppropriatedMember 2016-01-01 2016-12-31 0001535929 us-gaap:AccountingStandardsUpdate201413Member us-gaap:RetainedEarningsUnappropriatedMember 2015-12-31 0001535929 2016-12-31 0001535929 us-gaap:AccountingStandardsUpdate201601Member us-gaap:AdditionalPaidInCapitalMember 2017-12-31 0001535929 us-gaap:AccountingStandardsUpdate201502Member us-gaap:AccumulatedOtherComprehensiveIncomeMember 2015-12-31 0001535929 us-gaap:AccountingStandardsUpdate201502Member us-gaap:AdditionalPaidInCapitalMember 2015-12-31 0001535929 us-gaap:NoncontrollingInterestMember 2017-12-31 0001535929 us-gaap:AccountingStandardsUpdate201409Member us-gaap:AdditionalPaidInCapitalMember 2017-12-31 0001535929 srt:ScenarioPreviouslyReportedMember us-gaap:NoncontrollingInterestMember 2017-12-31 0001535929 srt:ScenarioPreviouslyReportedMember us-gaap:AdditionalPaidInCapitalMember 2015-12-31 0001535929 us-gaap:AccountingStandardsUpdate201409Member us-gaap:TreasuryStockMember 2017-12-31 0001535929 srt:ScenarioPreviouslyReportedMember us-gaap:NoncontrollingInterestMember 2016-12-31 0001535929 us-gaap:AccountingStandardsUpdate201502Member us-gaap:CommonStockMember 2015-12-31 0001535929 us-gaap:CommonStockMember 2015-12-31 0001535929 us-gaap:AccountingStandardsUpdate201502Member us-gaap:TreasuryStockMember 2015-12-31 0001535929 us-gaap:AccountingStandardsUpdate201413Member us-gaap:ParentMember 2015-12-31 0001535929 srt:ScenarioPreviouslyReportedMember us-gaap:CommonStockMember 2015-12-31 0001535929 us-gaap:TreasuryStockMember 2018-12-31 0001535929 us-gaap:AccountingStandardsUpdate201609Member 2016-12-31 0001535929 us-gaap:AccountingStandardsUpdate201413Member us-gaap:TreasuryStockMember 2015-12-31 0001535929 srt:ScenarioPreviouslyReportedMember us-gaap:CommonStockMember 2017-12-31 0001535929 us-gaap:RetainedEarningsAppropriatedMember 2015-12-31 0001535929 srt:ScenarioPreviouslyReportedMember us-gaap:AccumulatedOtherComprehensiveIncomeMember 2017-12-31 0001535929 us-gaap:AccountingStandardsUpdate201413Member us-gaap:PreferredStockMember 2015-12-31 0001535929 srt:ScenarioPreviouslyReportedMember us-gaap:RetainedEarningsUnappropriatedMember 2017-12-31 0001535929 us-gaap:RetainedEarningsAppropriatedMember 2017-12-31 0001535929 us-gaap:PreferredStockMember 2016-12-31 0001535929 us-gaap:AccountingStandardsUpdate201601Member us-gaap:PreferredStockMember 2017-12-31 0001535929 us-gaap:AccountingStandardsUpdate201413Member us-gaap:AdditionalPaidInCapitalMember 2015-12-31 0001535929 us-gaap:AccountingStandardsUpdate201609Member us-gaap:CommonStockMember 2016-12-31 0001535929 srt:ScenarioPreviouslyReportedMember 2016-12-31 0001535929 srt:ScenarioPreviouslyReportedMember us-gaap:AdditionalPaidInCapitalMember 2017-12-31 0001535929 srt:ScenarioPreviouslyReportedMember us-gaap:AdditionalPaidInCapitalMember 2016-12-31 0001535929 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2016-12-31 0001535929 us-gaap:NoncontrollingInterestMember 2016-12-31 0001535929 us-gaap:AccountingStandardsUpdate201609Member us-gaap:RetainedEarningsUnappropriatedMember 2016-12-31 0001535929 srt:ScenarioPreviouslyReportedMember us-gaap:PreferredStockMember 2016-12-31 0001535929 us-gaap:TreasuryStockMember 2017-12-31 0001535929 us-gaap:CommonStockMember 2018-12-31 0001535929 us-gaap:AccountingStandardsUpdate201413Member us-gaap:NoncontrollingInterestMember 2015-12-31 0001535929 srt:ScenarioPreviouslyReportedMember us-gaap:NoncontrollingInterestMember 2015-12-31 0001535929 us-gaap:AdditionalPaidInCapitalMember 2015-12-31 0001535929 us-gaap:RetainedEarningsUnappropriatedMember 2017-12-31 0001535929 us-gaap:CommonStockMember 2016-12-31 0001535929 us-gaap:AdditionalPaidInCapitalMember 2018-12-31 0001535929 us-gaap:RetainedEarningsUnappropriatedMember 2018-12-31 0001535929 srt:ScenarioPreviouslyReportedMember us-gaap:RetainedEarningsAppropriatedMember 2016-12-31 0001535929 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2015-12-31 0001535929 us-gaap:AccountingStandardsUpdate201601Member us-gaap:AccumulatedOtherComprehensiveIncomeMember 2017-12-31 0001535929 us-gaap:TreasuryStockMember 2015-12-31 0001535929 us-gaap:AccountingStandardsUpdate201502Member us-gaap:PreferredStockMember 2015-12-31 0001535929 us-gaap:AccountingStandardsUpdate201601Member us-gaap:CommonStockMember 2017-12-31 0001535929 us-gaap:AccountingStandardsUpdate201609Member us-gaap:NoncontrollingInterestMember 2016-12-31 0001535929 srt:ScenarioPreviouslyReportedMember us-gaap:TreasuryStockMember 2015-12-31 0001535929 us-gaap:AccountingStandardsUpdate201609Member us-gaap:TreasuryStockMember 2016-12-31 0001535929 us-gaap:AccountingStandardsUpdate201601Member us-gaap:ParentMember 2017-12-31 0001535929 us-gaap:ParentMember 2017-12-31 0001535929 us-gaap:AccountingStandardsUpdate201502Member us-gaap:NoncontrollingInterestMember 2015-12-31 0001535929 us-gaap:PreferredStockMember 2015-12-31 0001535929 us-gaap:ParentMember 2018-12-31 0001535929 srt:ScenarioPreviouslyReportedMember us-gaap:ParentMember 2015-12-31 0001535929 us-gaap:AccountingStandardsUpdate201601Member 2017-12-31 0001535929 srt:ScenarioPreviouslyReportedMember us-gaap:AccumulatedOtherComprehensiveIncomeMember 2015-12-31 0001535929 us-gaap:AccountingStandardsUpdate201413Member 2015-12-31 0001535929 us-gaap:AccountingStandardsUpdate201601Member us-gaap:RetainedEarningsUnappropriatedMember 2017-12-31 0001535929 us-gaap:AccountingStandardsUpdate201413Member us-gaap:AccumulatedOtherComprehensiveIncomeMember 2015-12-31 0001535929 srt:ScenarioPreviouslyReportedMember us-gaap:ParentMember 2016-12-31 0001535929 us-gaap:AccountingStandardsUpdate201413Member us-gaap:RetainedEarningsAppropriatedMember 2015-12-31 0001535929 us-gaap:AccountingStandardsUpdate201409Member us-gaap:NoncontrollingInterestMember 2017-12-31 0001535929 us-gaap:CommonStockMember 2017-12-31 0001535929 us-gaap:AccountingStandardsUpdate201409Member 2017-12-31 0001535929 srt:ScenarioPreviouslyReportedMember us-gaap:RetainedEarningsAppropriatedMember 2017-12-31 0001535929 us-gaap:NoncontrollingInterestMember 2015-12-31 0001535929 srt:ScenarioPreviouslyReportedMember us-gaap:TreasuryStockMember 2017-12-31 0001535929 us-gaap:AccountingStandardsUpdate201609Member us-gaap:AccumulatedOtherComprehensiveIncomeMember 2016-12-31 0001535929 us-gaap:AccountingStandardsUpdate201502Member 2015-12-31 0001535929 us-gaap:AdditionalPaidInCapitalMember 2016-12-31 0001535929 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2018-12-31 0001535929 srt:ScenarioPreviouslyReportedMember us-gaap:AccumulatedOtherComprehensiveIncomeMember 2016-12-31 0001535929 us-gaap:RetainedEarningsAppropriatedMember 2018-12-31 0001535929 us-gaap:RetainedEarningsUnappropriatedMember 2015-12-31 0001535929 us-gaap:AccountingStandardsUpdate201601Member us-gaap:NoncontrollingInterestMember 2017-12-31 0001535929 us-gaap:AccountingStandardsUpdate201409Member us-gaap:RetainedEarningsUnappropriatedMember 2017-12-31 0001535929 srt:ScenarioPreviouslyReportedMember us-gaap:RetainedEarningsAppropriatedMember 2015-12-31 0001535929 us-gaap:AccountingStandardsUpdate201409Member us-gaap:PreferredStockMember 2017-12-31 0001535929 us-gaap:ParentMember 2016-12-31 0001535929 us-gaap:AccountingStandardsUpdate201409Member us-gaap:AccumulatedOtherComprehensiveIncomeMember 2017-12-31 0001535929 us-gaap:AccountingStandardsUpdate201502Member us-gaap:ParentMember 2015-12-31 0001535929 srt:ScenarioPreviouslyReportedMember us-gaap:PreferredStockMember 2017-12-31 0001535929 us-gaap:AccountingStandardsUpdate201609Member us-gaap:AdditionalPaidInCapitalMember 2016-12-31 0001535929 srt:ScenarioPreviouslyReportedMember 2015-12-31 0001535929 us-gaap:RetainedEarningsAppropriatedMember 2016-12-31 0001535929 us-gaap:AccountingStandardsUpdate201601Member us-gaap:TreasuryStockMember 2017-12-31 0001535929 srt:ScenarioPreviouslyReportedMember us-gaap:ParentMember 2017-12-31 0001535929 voya:DurationMember 2018-01-01 2018-12-31 0001535929 voya:MarketSectorTypeOfSecurityMember 2018-01-01 2018-12-31 0001535929 srt:MaximumMember 2018-01-01 2018-12-31 0001535929 us-gaap:AccountingStandardsUpdate201409Member 2018-12-31 0001535929 srt:MinimumMember voya:FuturePolicyBenefitsAndClaimsReservesMember 2018-12-31 0001535929 us-gaap:DiscontinuedOperationsHeldforsaleMember voya:VIACAndDSLMember 2018-06-01 0001535929 srt:MinimumMember 2018-01-01 2018-12-31 0001535929 us-gaap:CorporateMember 2018-01-01 2018-12-31 0001535929 voya:IndividualAndGroupLifeInsuranceReservesMember srt:MaximumMember 2018-12-31 0001535929 voya:RetirementMember 2018-01-01 2018-12-31 0001535929 voya:IndividualAndGroupLifeInsuranceReservesMember srt:MinimumMember 2018-12-31 0001535929 srt:MaximumMember voya:FuturePolicyBenefitsAndClaimsReservesMember 2018-12-31 0001535929 voya:FixedAnnuitiesAndPayoutContractsWithoutLifeContingenciesMember 2018-01-01 2018-12-31 0001535929 voya:RecordkeepingAdministrationMember voya:RetirementMember 2018-01-01 2018-12-31 0001535929 voya:DistributionFeesMember voya:InvestmentManagementMember 2018-01-01 2018-12-31 0001535929 voya:RecordkeepingAdministrationMember us-gaap:CorporateMember 2018-01-01 2018-12-31 0001535929 voya:AdvisoryMember us-gaap:CorporateMember 2018-01-01 2018-12-31 0001535929 voya:InvestmentManagementMember 2018-01-01 2018-12-31 0001535929 voya:AssetmanagementMember voya:RetirementMember 2018-01-01 2018-12-31 0001535929 voya:AdvisoryMember voya:InvestmentManagementMember 2018-01-01 2018-12-31 0001535929 voya:DistributionFeesMember us-gaap:CorporateMember 2018-01-01 2018-12-31 0001535929 voya:AssetmanagementMember us-gaap:CorporateMember 2018-01-01 2018-12-31 0001535929 voya:RecordkeepingAdministrationMember voya:InvestmentManagementMember 2018-01-01 2018-12-31 0001535929 voya:AssetmanagementMember voya:InvestmentManagementMember 2018-01-01 2018-12-31 0001535929 voya:DistributionFeesMember voya:RetirementMember 2018-01-01 2018-12-31 0001535929 voya:AdvisoryMember voya:RetirementMember 2018-01-01 2018-12-31 0001535929 voya:FixedAnnuitiesAndPayoutContractsWithoutLifeContingenciesMember 2016-01-01 2016-12-31 0001535929 voya:FixedAnnuitiesAndPayoutContractsWithoutLifeContingenciesMember 2017-01-01 2017-12-31 0001535929 us-gaap:AccountingStandardsUpdate201409Member us-gaap:DifferenceBetweenRevenueGuidanceInEffectBeforeAndAfterTopic606Member 2018-01-01 2018-12-31 0001535929 us-gaap:AccountingStandardsUpdate201409Member us-gaap:DifferenceBetweenRevenueGuidanceInEffectBeforeAndAfterTopic606Member 2018-12-31 0001535929 us-gaap:AccountingStandardsUpdate201602Member us-gaap:ScenarioForecastMember 2019-01-01 0001535929 voya:AccountingStandardsUpdate201802Member us-gaap:ScenarioForecastMember 2019-01-01 0001535929 us-gaap:AccountingStandardsUpdate201409Member us-gaap:DifferenceBetweenRevenueGuidanceInEffectBeforeAndAfterTopic606Member 2018-01-01 0001535929 us-gaap:DiscontinuedOperationsHeldforsaleMember voya:VIACAndDSLMember 2017-12-31 0001535929 us-gaap:DiscontinuedOperationsHeldforsaleMember voya:VIACAndDSLMember 2018-12-31 0001535929 voya:VoyaIMMember us-gaap:DiscontinuedOperationsHeldforsaleMember voya:VIACAndDSLMember 2018-06-01 2018-06-01 0001535929 us-gaap:DiscontinuedOperationsHeldforsaleMember voya:VIACAndDSLMember 2017-01-01 2017-12-31 0001535929 srt:MaximumMember 2018-12-31 0001535929 us-gaap:DiscontinuedOperationsHeldforsaleMember voya:VIACAndDSLMember 2018-01-01 2018-12-31 0001535929 srt:RestatementAdjustmentMember us-gaap:DiscontinuedOperationsHeldforsaleMember voya:VIACAndDSLMember 2018-01-01 2018-12-31 0001535929 srt:MinimumMember 2018-12-31 0001535929 us-gaap:DiscontinuedOperationsHeldforsaleMember voya:VIACAndDSLMember 2018-01-01 2018-05-31 0001535929 us-gaap:DiscontinuedOperationsHeldforsaleMember voya:VIACAndDSLMember 2016-01-01 2016-12-31 0001535929 voya:EnergyMember 2017-12-31 0001535929 voya:TransportationMember 2017-12-31 0001535929 voya:IndustrialAndOtherCompaniesMember 2018-12-31 0001535929 voya:UtilitiesMember 2017-12-31 0001535929 voya:FinancialMember 2017-12-31 0001535929 voya:CommunicationsMember 2017-12-31 0001535929 voya:UtilitiesMember 2018-12-31 0001535929 voya:EnergyMember 2018-12-31 0001535929 voya:TransportationMember 2018-12-31 0001535929 voya:CommunicationsMember 2018-12-31 0001535929 voya:USAndForeignCorporateSecuritiesMember 2018-12-31 0001535929 voya:IndustrialAndOtherCompaniesMember 2017-12-31 0001535929 voya:USAndForeignCorporateSecuritiesMember 2017-12-31 0001535929 voya:FinancialMember 2018-12-31 0001535929 voya:ForeignCorporatePrivateSecuritiesMember 2018-01-01 2018-12-31 0001535929 us-gaap:AssetBackedSecuritiesMember 2018-01-01 2018-12-31 0001535929 voya:U.S.CorporatePublicSecuritiesMember 2016-01-01 2016-12-31 0001535929 us-gaap:USStatesAndPoliticalSubdivisionsMember 2018-01-01 2018-12-31 0001535929 voya:ForeignCorporatePrivateSecuritiesMember 2016-01-01 2016-12-31 0001535929 us-gaap:USStatesAndPoliticalSubdivisionsMember 2016-01-01 2016-12-31 0001535929 voya:ForeignCorporatePublicSecuritiesandForeignGovernmentsMember 2016-01-01 2016-12-31 0001535929 voya:U.S.CorporatePublicSecuritiesMember 2017-01-01 2017-12-31 0001535929 us-gaap:ResidentialMortgageBackedSecuritiesMember 2017-01-01 2017-12-31 0001535929 us-gaap:AssetBackedSecuritiesMember 2016-01-01 2016-12-31 0001535929 us-gaap:AssetBackedSecuritiesMember 2017-01-01 2017-12-31 0001535929 voya:ForeignCorporatePublicSecuritiesandForeignGovernmentsMember 2017-01-01 2017-12-31 0001535929 us-gaap:ResidentialMortgageBackedSecuritiesMember 2018-01-01 2018-12-31 0001535929 us-gaap:ResidentialMortgageBackedSecuritiesMember 2016-01-01 2016-12-31 0001535929 voya:ForeignCorporatePublicSecuritiesandForeignGovernmentsMember 2018-01-01 2018-12-31 0001535929 voya:ForeignCorporatePrivateSecuritiesMember 2017-01-01 2017-12-31 0001535929 voya:U.S.CorporatePublicSecuritiesMember 2018-01-01 2018-12-31 0001535929 us-gaap:USStatesAndPoliticalSubdivisionsMember 2017-01-01 2017-12-31 0001535929 voya:MixedUseMember 2018-12-31 0001535929 srt:IndustrialPropertyMember 2017-12-31 0001535929 srt:ApartmentBuildingMember 2017-12-31 0001535929 voya:MixedUseMember 2017-12-31 0001535929 srt:OtherPropertyMember 2017-12-31 0001535929 srt:OtherPropertyMember 2018-12-31 0001535929 srt:RetailSiteMember 2017-12-31 0001535929 srt:HotelMember 2017-12-31 0001535929 srt:OfficeBuildingMember 2017-12-31 0001535929 srt:IndustrialPropertyMember 2018-12-31 0001535929 srt:OfficeBuildingMember 2018-12-31 0001535929 srt:HotelMember 2018-12-31 0001535929 srt:ApartmentBuildingMember 2018-12-31 0001535929 srt:RetailSiteMember 2018-12-31 0001535929 us-gaap:ShortTermInvestmentsMember 2017-12-31 0001535929 us-gaap:CommercialPortfolioSegmentMember 2017-01-01 2017-12-31 0001535929 voya:SecuritiespledgedMember 2018-12-31 0001535929 us-gaap:NonperformingFinancingReceivableMember 2018-01-01 2018-12-31 0001535929 voya:SecuritiespledgedMember 2017-12-31 0001535929 voya:PayablesUnderSecuritiesLoanAgreementIncludingCollateralHeldMember 2018-12-31 0001535929 us-gaap:MortgageBackedSecuritiesMember 2018-12-31 0001535929 voya:PayablesUnderSecuritiesLoanAgreementIncludingCollateralHeldMember 2017-12-31 0001535929 us-gaap:NonperformingFinancingReceivableMember 2017-01-01 2017-12-31 0001535929 us-gaap:FixedMaturitiesMember 2018-12-31 0001535929 us-gaap:FinancingReceivables30To59DaysPastDueMember us-gaap:MortgagesMember 2018-12-31 0001535929 us-gaap:MortgageBackedSecuritiesMember 2017-12-31 0001535929 us-gaap:FinancingReceivables30To59DaysPastDueMember 2018-12-31 0001535929 us-gaap:ShortTermInvestmentsMember 2018-12-31 0001535929 us-gaap:CommercialMortgageBackedSecuritiesMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 us-gaap:ResidentialMortgageBackedSecuritiesMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 us-gaap:USStatesAndPoliticalSubdivisionsMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 voya:U.S.CorporatePublicSecuritiesMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 voya:U.S.CorporatePrivateSecuritiesMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 voya:U.S.CorporatePrivateSecuritiesMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 voya:U.S.CorporatePublicSecuritiesMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 us-gaap:AssetBackedSecuritiesMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 voya:ForeignCorporatePublicSecuritiesandForeignGovernmentsMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 us-gaap:USStatesAndPoliticalSubdivisionsMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 voya:ForeignCorporatePrivateSecuritiesMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 us-gaap:USTreasurySecuritiesMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 us-gaap:AssetBackedSecuritiesMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 voya:ForeignCorporatePrivateSecuritiesMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 voya:U.S.CorporatePublicSecuritiesMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 us-gaap:USTreasurySecuritiesMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 voya:U.S.CorporatePublicSecuritiesMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 voya:ForeignCorporatePublicSecuritiesandForeignGovernmentsMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 us-gaap:USStatesAndPoliticalSubdivisionsMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 us-gaap:ResidentialMortgageBackedSecuritiesMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 voya:ForeignCorporatePublicSecuritiesandForeignGovernmentsMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 voya:ForeignCorporatePublicSecuritiesandForeignGovernmentsMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 us-gaap:CommercialMortgageBackedSecuritiesMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 us-gaap:CommercialMortgageBackedSecuritiesMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 us-gaap:USTreasurySecuritiesMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 voya:ForeignCorporatePrivateSecuritiesMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 us-gaap:CommercialMortgageBackedSecuritiesMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 voya:U.S.CorporatePrivateSecuritiesMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 voya:ForeignCorporatePrivateSecuritiesMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 us-gaap:AssetBackedSecuritiesMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 us-gaap:AssetBackedSecuritiesMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 us-gaap:USStatesAndPoliticalSubdivisionsMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 us-gaap:USTreasurySecuritiesMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 us-gaap:ResidentialMortgageBackedSecuritiesMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 voya:U.S.CorporatePrivateSecuritiesMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 us-gaap:ResidentialMortgageBackedSecuritiesMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 us-gaap:FixedMaturitiesMember 2018-12-31 0001535929 us-gaap:AssetBackedSecuritiesMember 2018-12-31 0001535929 voya:LoansReceivableDebtServiceCoverageRatioRangeTwoMember 2018-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeOneMember 2017-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeThreeMember 2017-12-31 0001535929 voya:LoansReceivableDebtServiceCoverageRatioRangeTwoMember 2017-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeOneMember voya:LoansReceivableDebtServiceCoverageRatioRangeOneMember 2018-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeThreeMember voya:LoansReceivableDebtServiceCoverageRatioRangeThreeMember 2018-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeFourMember 2018-12-31 0001535929 us-gaap:Ltv80To100PercentMember voya:LoansReceivableDebtServiceCoverageRatioRangeTwoMember 2018-12-31 0001535929 us-gaap:Ltv80To100PercentMember 2017-12-31 0001535929 us-gaap:Ltv80To100PercentMember voya:LoansReceivableDebtServiceCoverageRatioRangeThreeMember 2018-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeFourMember voya:LoansReceivableDebtServiceCoverageRatioRangeOneMember 2018-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeThreeMember voya:LoansReceivableDebtServiceCoverageRatioRangeFourMember 2018-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeThreeMember voya:LoansReceivableDebtServiceCoverageRatioRangeFourMember 2017-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeTwoMember voya:LoansReceivableDebtServiceCoverageRatioRangeThreeMember 2018-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeFourMember voya:LoansReceivableDebtServiceCoverageRatioRangeTwoMember 2018-12-31 0001535929 us-gaap:Ltv80To100PercentMember 2018-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeFourMember voya:LoansReceivableDebtServiceCoverageRatioRangeFourMember 2018-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeOneMember voya:LoansReceivableDebtServiceCoverageRatioRangeOneMember 2017-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeOneMember voya:LoansReceivableDebtServiceCoverageRatioRangeTwoMember 2017-12-31 0001535929 voya:LoansReceivableDebtServiceCoverageRatioRangeThreeMember 2018-12-31 0001535929 voya:LoansReceivableDebtServiceCoverageRatioRangeFourMember 2018-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeTwoMember 2018-12-31 0001535929 us-gaap:Ltv80To100PercentMember voya:LoansReceivableDebtServiceCoverageRatioRangeFourMember 2017-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeTwoMember voya:LoansReceivableDebtServiceCoverageRatioRangeThreeMember 2017-12-31 0001535929 us-gaap:Ltv80To100PercentMember voya:LoansReceivableDebtServiceCoverageRatioRangeThreeMember 2017-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeThreeMember 2018-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeFourMember voya:LoansReceivableDebtServiceCoverageRatioRangeTwoMember 2017-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeFourMember 2017-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeTwoMember voya:LoansReceivableDebtServiceCoverageRatioRangeFourMember 2017-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeThreeMember voya:LoansReceivableDebtServiceCoverageRatioRangeTwoMember 2018-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeFourMember voya:LoansReceivableDebtServiceCoverageRatioRangeThreeMember 2018-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeTwoMember voya:LoansReceivableDebtServiceCoverageRatioRangeOneMember 2018-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeTwoMember voya:LoansReceivableDebtServiceCoverageRatioRangeTwoMember 2018-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeOneMember voya:LoansReceivableDebtServiceCoverageRatioRangeThreeMember 2018-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeThreeMember voya:LoansReceivableDebtServiceCoverageRatioRangeOneMember 2017-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeTwoMember 2017-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeOneMember 2018-12-31 0001535929 us-gaap:Ltv80To100PercentMember voya:LoansReceivableDebtServiceCoverageRatioRangeOneMember 2017-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeFourMember voya:LoansReceivableDebtServiceCoverageRatioRangeThreeMember 2017-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeTwoMember voya:LoansReceivableDebtServiceCoverageRatioRangeOneMember 2017-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeOneMember voya:LoansReceivableDebtServiceCoverageRatioRangeFourMember 2018-12-31 0001535929 voya:LoansReceivableDebtServiceCoverageRatioRangeOneMember 2017-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeTwoMember voya:LoansReceivableDebtServiceCoverageRatioRangeFourMember 2018-12-31 0001535929 voya:LoansReceivableDebtServiceCoverageRatioRangeOneMember 2018-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeTwoMember voya:LoansReceivableDebtServiceCoverageRatioRangeTwoMember 2017-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeFourMember voya:LoansReceivableDebtServiceCoverageRatioRangeOneMember 2017-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeOneMember voya:LoansReceivableDebtServiceCoverageRatioRangeThreeMember 2017-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeOneMember voya:LoansReceivableDebtServiceCoverageRatioRangeTwoMember 2018-12-31 0001535929 us-gaap:Ltv80To100PercentMember voya:LoansReceivableDebtServiceCoverageRatioRangeTwoMember 2017-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeFourMember voya:LoansReceivableDebtServiceCoverageRatioRangeFourMember 2017-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeThreeMember voya:LoansReceivableDebtServiceCoverageRatioRangeTwoMember 2017-12-31 0001535929 us-gaap:Ltv80To100PercentMember voya:LoansReceivableDebtServiceCoverageRatioRangeOneMember 2018-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeThreeMember voya:LoansReceivableDebtServiceCoverageRatioRangeOneMember 2018-12-31 0001535929 voya:LoansReceivableDebtServiceCoverageRatioRangeThreeMember 2017-12-31 0001535929 us-gaap:Ltv80To100PercentMember voya:LoansReceivableDebtServiceCoverageRatioRangeFourMember 2018-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeOneMember voya:LoansReceivableDebtServiceCoverageRatioRangeFourMember 2017-12-31 0001535929 voya:LoansReceivableDebtServiceCoverageRatioRangeFourMember 2017-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeThreeMember voya:LoansReceivableDebtServiceCoverageRatioRangeThreeMember 2017-12-31 0001535929 us-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember 2018-12-31 0001535929 us-gaap:USTreasuryAndGovernmentMember 2018-12-31 0001535929 us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember 2018-12-31 0001535929 voya:ForeignCorporatePublicSecuritiesandForeignGovernmentsMember 2018-12-31 0001535929 voya:ForeignCorporatePrivateSecuritiesMember 2018-12-31 0001535929 us-gaap:USStatesAndPoliticalSubdivisionsMember 2018-12-31 0001535929 us-gaap:USTreasurySecuritiesMember 2018-12-31 0001535929 voya:U.S.CorporatePrivateSecuritiesMember 2018-12-31 0001535929 us-gaap:ResidentialMortgageBackedSecuritiesMember 2018-12-31 0001535929 us-gaap:CollateralPledgedMember us-gaap:FixedMaturitiesMember 2018-12-31 0001535929 voya:U.S.CorporatePublicSecuritiesMember 2018-12-31 0001535929 us-gaap:CommercialMortgageBackedSecuritiesMember 2018-12-31 0001535929 us-gaap:PerformingFinancingReceivableMember 2017-12-31 0001535929 us-gaap:PerformingFinancingReceivableMember 2018-12-31 0001535929 us-gaap:NonperformingFinancingReceivableMember 2017-12-31 0001535929 us-gaap:NonperformingFinancingReceivableMember 2018-12-31 0001535929 us-gaap:CollateralPledgedMember us-gaap:FixedMaturitiesMember 2017-12-31 0001535929 voya:U.S.CorporatePublicSecuritiesMember 2017-12-31 0001535929 voya:ForeignCorporatePublicSecuritiesandForeignGovernmentsMember 2017-12-31 0001535929 us-gaap:FixedMaturitiesMember 2017-12-31 0001535929 us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember 2017-12-31 0001535929 us-gaap:USTreasuryAndGovernmentMember 2017-12-31 0001535929 voya:ForeignCorporatePrivateSecuritiesMember 2017-12-31 0001535929 us-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember 2017-12-31 0001535929 voya:U.S.CorporatePrivateSecuritiesMember 2017-12-31 0001535929 us-gaap:ResidentialMortgageBackedSecuritiesMember 2017-12-31 0001535929 us-gaap:AssetBackedSecuritiesMember 2017-12-31 0001535929 us-gaap:CommonStockMember 2017-12-31 0001535929 us-gaap:EquitySecuritiesMember 2017-12-31 0001535929 us-gaap:PreferredStockMember 2017-12-31 0001535929 us-gaap:CommercialMortgageBackedSecuritiesMember 2017-12-31 0001535929 us-gaap:USStatesAndPoliticalSubdivisionsMember 2017-12-31 0001535929 us-gaap:USTreasurySecuritiesMember 2017-12-31 0001535929 voya:ResidentialMortgageBackedSecuritiesAndOtherAssetBackedSecuritiesMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 us-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 voya:OtherAssetBackedSecuritiesNonRmbsMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember voya:CreditEnhancementPercentageRangeFourMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember voya:LoansReceivableLoanToValueRatioRangeNineMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember voya:CreditEnhancementPercentageRangeFourMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 voya:OtherAssetBackedSecuritiesNonRmbsMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember us-gaap:LtvLessThan80PercentMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 us-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 voya:FloatingRateMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember voya:CreditEnhancementPercentageRangeTwoMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember voya:LoansReceivableLoanToValueRatioRangeNineMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember voya:LoansReceivableLoanToValueRatioRangeEightMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember voya:LoansReceivableLoanToValueRatioRangeEightMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 voya:FixedRateMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember voya:CreditEnhancementPercentageRangeTwoMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember voya:CreditEnhancementPercentageRangeThreeMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember us-gaap:LtvLessThan80PercentMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 voya:FloatingRateMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember voya:CreditEnhancementPercentageRangeThreeMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 voya:FixedRateMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 voya:ResidentialMortgageBackedSecuritiesAndOtherAssetBackedSecuritiesMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember voya:CreditEnhancementPercentageRangeOneMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember voya:CreditEnhancementPercentageRangeOneMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember voya:LoansReceivableLoanToValueRatioRangeSevenMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember voya:LoansReceivableLoanToValueRatioRangeSevenMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2017-12-31 0001535929 voya:PayablesUnderSecuritiesLoanAgreementsMember 2018-12-31 0001535929 us-gaap:EquitySecuritiesMember 2018-12-31 0001535929 voya:PayablesUnderSecuritiesLoanAgreementsMember 2017-12-31 0001535929 us-gaap:EquitySecuritiesMember 2017-01-01 2017-12-31 0001535929 voya:FixedMaturitiesAtFairValueUsingFairValueOptionMember 2016-01-01 2016-12-31 0001535929 us-gaap:OtherInvestmentsMember 2016-01-01 2016-12-31 0001535929 voya:FixedMaturitiesAvailableForSaleIncludingSecuritiesPledgedMember 2017-01-01 2017-12-31 0001535929 us-gaap:EquitySecuritiesMember 2016-01-01 2016-12-31 0001535929 us-gaap:FixedMaturitiesMember 2017-01-01 2017-12-31 0001535929 voya:FixedMaturitiesAvailableForSaleIncludingSecuritiesPledgedMember 2016-01-01 2016-12-31 0001535929 voya:FixedMaturitiesAtFairValueUsingFairValueOptionMember 2018-01-01 2018-12-31 0001535929 us-gaap:DerivativeMember 2016-01-01 2016-12-31 0001535929 voya:FixedMaturitiesAtFairValueUsingFairValueOptionMember 2017-01-01 2017-12-31 0001535929 us-gaap:EquitySecuritiesMember 2018-01-01 2018-12-31 0001535929 us-gaap:OtherInvestmentsMember 2017-01-01 2017-12-31 0001535929 voya:ProductGuaranteesMember 2016-01-01 2016-12-31 0001535929 us-gaap:DerivativeMember 2018-01-01 2018-12-31 0001535929 voya:ProductGuaranteesMember 2017-01-01 2017-12-31 0001535929 us-gaap:OtherInvestmentsMember 2018-01-01 2018-12-31 0001535929 us-gaap:DerivativeMember 2017-01-01 2017-12-31 0001535929 us-gaap:FixedMaturitiesMember 2016-01-01 2016-12-31 0001535929 voya:FixedMaturitiesAvailableForSaleIncludingSecuritiesPledgedMember 2018-01-01 2018-12-31 0001535929 us-gaap:FixedMaturitiesMember 2018-01-01 2018-12-31 0001535929 voya:ProductGuaranteesMember 2018-01-01 2018-12-31 0001535929 voya:ResidentialMortgageBackedSecuritiesAndOtherAssetBackedSecuritiesMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember us-gaap:LtvLessThan80PercentMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 voya:OtherAssetBackedSecuritiesNonRmbsMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 us-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 voya:ResidentialMortgageBackedSecuritiesAndOtherAssetBackedSecuritiesMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 voya:FloatingRateMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 voya:OtherAssetBackedSecuritiesNonRmbsMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember voya:LoansReceivableLoanToValueRatioRangeEightMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 voya:FloatingRateMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 voya:FixedRateMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 us-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember voya:LoansReceivableLoanToValueRatioRangeSevenMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember voya:CreditEnhancementPercentageRangeOneMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember us-gaap:LtvLessThan80PercentMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember voya:CreditEnhancementPercentageRangeThreeMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 voya:FixedRateMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember voya:CreditEnhancementPercentageRangeThreeMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember voya:CreditEnhancementPercentageRangeFourMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember voya:LoansReceivableLoanToValueRatioRangeEightMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember voya:LoansReceivableLoanToValueRatioRangeNineMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember voya:CreditEnhancementPercentageRangeTwoMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember voya:CreditEnhancementPercentageRangeTwoMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember voya:CreditEnhancementPercentageRangeOneMember voya:LessThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember voya:LoansReceivableLoanToValueRatioRangeSevenMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember voya:CreditEnhancementPercentageRangeFourMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember voya:LoansReceivableLoanToValueRatioRangeNineMember voya:GreaterThan20PercentFairValueDeclineBelowAmortizedCostMember 2018-12-31 0001535929 voya:ShortTermInvestmentsAndCashEquivalentsMember 2018-01-01 2018-12-31 0001535929 us-gaap:FixedMaturitiesMember 2018-01-01 2018-12-31 0001535929 us-gaap:EquitySecuritiesMember 2018-01-01 2018-12-31 0001535929 us-gaap:MortgagesMember 2018-01-01 2018-12-31 0001535929 us-gaap:PolicyLoansMember 2018-01-01 2018-12-31 0001535929 us-gaap:FixedMaturitiesMember 2016-01-01 2016-12-31 0001535929 us-gaap:MortgagesMember 2017-01-01 2017-12-31 0001535929 us-gaap:EquitySecuritiesMember 2016-01-01 2016-12-31 0001535929 voya:ShortTermInvestmentsAndCashEquivalentsMember 2016-01-01 2016-12-31 0001535929 us-gaap:MortgagesMember 2016-01-01 2016-12-31 0001535929 us-gaap:FixedMaturitiesMember 2017-01-01 2017-12-31 0001535929 us-gaap:PolicyLoansMember 2016-01-01 2016-12-31 0001535929 us-gaap:EquitySecuritiesMember 2017-01-01 2017-12-31 0001535929 voya:ShortTermInvestmentsAndCashEquivalentsMember 2017-01-01 2017-12-31 0001535929 us-gaap:PolicyLoansMember 2017-01-01 2017-12-31 0001535929 us-gaap:PacificDestinationMember 2018-12-31 0001535929 voya:MiddleAtlanticMember 2018-12-31 0001535929 voya:MiddleAtlanticMember 2017-12-31 0001535929 voya:MountainMember 2017-12-31 0001535929 voya:WestSouthCentralMember 2018-12-31 0001535929 voya:EastNorthCentralMember 2018-12-31 0001535929 voya:NewEnglandMember 2017-12-31 0001535929 voya:NewEnglandMember 2018-12-31 0001535929 voya:MountainMember 2018-12-31 0001535929 us-gaap:PacificDestinationMember 2017-12-31 0001535929 voya:SouthAtlanticMember 2017-12-31 0001535929 voya:EastNorthCentralMember 2017-12-31 0001535929 voya:WestNorthCentralMember 2017-12-31 0001535929 voya:SouthAtlanticMember 2018-12-31 0001535929 voya:EastSouthCentralMember 2017-12-31 0001535929 voya:WestSouthCentralMember 2017-12-31 0001535929 voya:EastSouthCentralMember 2018-12-31 0001535929 voya:WestNorthCentralMember 2018-12-31 0001535929 voya:YearofOrigination2015Member 2017-12-31 0001535929 voya:YearofOrigination2018Member 2018-12-31 0001535929 voya:YearofOrigination2017Member 2018-12-31 0001535929 voya:YearOfOrigination2013Member 2017-12-31 0001535929 voya:YearofOrigination2014Member 2018-12-31 0001535929 voya:YearofOrigination2018Member 2017-12-31 0001535929 voya:YearofOrigination2016Member 2017-12-31 0001535929 voya:YearOfOrigination2012Member 2017-12-31 0001535929 voya:YearOfOrigination2012Member 2018-12-31 0001535929 voya:YearofOrigination2017Member 2017-12-31 0001535929 voya:YearofOrigination2015Member 2018-12-31 0001535929 voya:YearofOrigination2014Member 2017-12-31 0001535929 voya:YearofOrigination2016Member 2018-12-31 0001535929 voya:YearOfOrigination2013Member 2018-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeThreeMember 2017-01-01 2017-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeFourMember 2017-01-01 2017-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeOneMember 2018-01-01 2018-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeFourMember 2018-01-01 2018-12-31 0001535929 us-gaap:Ltv80To100PercentMember 2018-01-01 2018-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeTwoMember 2018-01-01 2018-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeOneMember 2017-01-01 2017-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeTwoMember 2017-01-01 2017-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeThreeMember 2018-01-01 2018-12-31 0001535929 us-gaap:Ltv80To100PercentMember 2017-01-01 2017-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeEightMember 2018-01-01 2018-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeSevenMember 2017-01-01 2017-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeNineMember 2018-01-01 2018-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeSevenMember 2018-01-01 2018-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeNineMember 2017-01-01 2017-12-31 0001535929 us-gaap:LtvLessThan80PercentMember 2017-01-01 2017-12-31 0001535929 voya:LoansReceivableLoanToValueRatioRangeEightMember 2017-01-01 2017-12-31 0001535929 us-gaap:LtvLessThan80PercentMember 2018-01-01 2018-12-31 0001535929 voya:LoansReceivableDebtServiceCoverageRatioRangeTwoMember 2017-01-01 2017-12-31 0001535929 voya:LoansReceivableDebtServiceCoverageRatioRangeThreeMember 2017-01-01 2017-12-31 0001535929 voya:LoansReceivableDebtServiceCoverageRatioRangeOneMember 2017-01-01 2017-12-31 0001535929 voya:LoansReceivableDebtServiceCoverageRatioRangeTwoMember 2018-01-01 2018-12-31 0001535929 voya:LoansReceivableDebtServiceCoverageRatioRangeFourMember 2017-01-01 2017-12-31 0001535929 voya:LoansReceivableDebtServiceCoverageRatioRangeThreeMember 2018-01-01 2018-12-31 0001535929 voya:LoansReceivableDebtServiceCoverageRatioRangeFourMember 2018-01-01 2018-12-31 0001535929 voya:LoansReceivableDebtServiceCoverageRatioRangeOneMember 2018-01-01 2018-12-31 0001535929 us-gaap:CommercialRealEstatePortfolioSegmentMember 2017-01-01 2017-12-31 0001535929 us-gaap:FixedMaturitiesMember 2017-12-31 0001535929 us-gaap:CommercialPortfolioSegmentMember 2018-01-01 2018-12-31 0001535929 voya:CreditEnhancementPercentageRangeTwoMember 2018-01-01 2018-12-31 0001535929 voya:CreditEnhancementPercentageRangeTwoMember 2017-01-01 2017-12-31 0001535929 voya:CreditEnhancementPercentageRangeFourMember 2018-01-01 2018-12-31 0001535929 voya:CreditEnhancementPercentageRangeFourMember 2017-01-01 2017-12-31 0001535929 voya:CreditEnhancementPercentageRangeThreeMember 2017-01-01 2017-12-31 0001535929 voya:CreditEnhancementPercentageRangeOneMember 2018-01-01 2018-12-31 0001535929 voya:CreditEnhancementPercentageRangeOneMember 2017-01-01 2017-12-31 0001535929 voya:CreditEnhancementPercentageRangeThreeMember 2018-01-01 2018-12-31 0001535929 us-gaap:EmbeddedDerivativeFinancialInstrumentsMember us-gaap:NondesignatedMember 2017-12-31 0001535929 voya:DerivativesMember us-gaap:EquityContractMember us-gaap:NondesignatedMember 2017-12-31 0001535929 us-gaap:FixedMaturitiesMember us-gaap:NondesignatedMember 2018-12-31 0001535929 voya:DerivativesMember us-gaap:ForeignExchangeContractMember us-gaap:NondesignatedMember 2018-12-31 0001535929 voya:DerivativesMember us-gaap:InterestRateContractMember us-gaap:CashFlowHedgingMember us-gaap:DesignatedAsHedgingInstrumentMember 2018-12-31 0001535929 voya:DerivativesMember us-gaap:ForeignExchangeContractMember us-gaap:NondesignatedMember 2017-12-31 0001535929 voya:DerivativesMember us-gaap:CreditDefaultSwapMember us-gaap:NondesignatedMember 2017-12-31 0001535929 us-gaap:EmbeddedDerivativeFinancialInstrumentsMember us-gaap:NondesignatedMember 2018-12-31 0001535929 us-gaap:ProductMember us-gaap:NondesignatedMember 2017-12-31 0001535929 voya:DerivativesMember us-gaap:ForeignExchangeContractMember us-gaap:CashFlowHedgingMember us-gaap:DesignatedAsHedgingInstrumentMember 2017-12-31 0001535929 us-gaap:CreditDefaultSwapMember us-gaap:NondesignatedMember 2018-12-31 0001535929 voya:DerivativesMember us-gaap:EquityContractMember us-gaap:NondesignatedMember 2018-12-31 0001535929 us-gaap:InterestRateContractMember us-gaap:CashFlowHedgingMember us-gaap:DesignatedAsHedgingInstrumentMember 2018-12-31 0001535929 voya:DerivativesMember us-gaap:CreditDefaultSwapMember us-gaap:NondesignatedMember 2018-12-31 0001535929 us-gaap:ForeignExchangeContractMember us-gaap:NondesignatedMember 2017-12-31 0001535929 us-gaap:EquityContractMember us-gaap:NondesignatedMember 2017-12-31 0001535929 us-gaap:InterestRateContractMember us-gaap:CashFlowHedgingMember us-gaap:DesignatedAsHedgingInstrumentMember 2017-12-31 0001535929 voya:DerivativesMember us-gaap:ForeignExchangeContractMember us-gaap:CashFlowHedgingMember us-gaap:DesignatedAsHedgingInstrumentMember 2018-12-31 0001535929 voya:DerivativesMember us-gaap:InterestRateContractMember us-gaap:CashFlowHedgingMember us-gaap:DesignatedAsHedgingInstrumentMember 2017-12-31 0001535929 us-gaap:ProductMember us-gaap:NondesignatedMember 2018-12-31 0001535929 us-gaap:ForeignExchangeContractMember us-gaap:CashFlowHedgingMember us-gaap:DesignatedAsHedgingInstrumentMember 2017-12-31 0001535929 voya:DerivativesMember us-gaap:InterestRateContractMember us-gaap:NondesignatedMember 2017-12-31 0001535929 us-gaap:EquityContractMember us-gaap:NondesignatedMember 2018-12-31 0001535929 us-gaap:FixedMaturitiesMember us-gaap:NondesignatedMember 2017-12-31 0001535929 us-gaap:CreditDefaultSwapMember us-gaap:NondesignatedMember 2017-12-31 0001535929 voya:DerivativesMember us-gaap:InterestRateContractMember us-gaap:NondesignatedMember 2018-12-31 0001535929 us-gaap:InterestRateContractMember us-gaap:NondesignatedMember 2017-12-31 0001535929 us-gaap:ForeignExchangeContractMember us-gaap:NondesignatedMember 2018-12-31 0001535929 us-gaap:InterestRateContractMember us-gaap:NondesignatedMember 2018-12-31 0001535929 us-gaap:ForeignExchangeContractMember us-gaap:CashFlowHedgingMember us-gaap:DesignatedAsHedgingInstrumentMember 2018-12-31 0001535929 us-gaap:EquityContractMember 2018-12-31 0001535929 us-gaap:InterestRateContractMember 2018-12-31 0001535929 us-gaap:ForeignExchangeContractMember 2018-12-31 0001535929 us-gaap:CreditDefaultSwapMember 2018-12-31 0001535929 us-gaap:ForeignExchangeContractMember 2017-12-31 0001535929 us-gaap:InterestRateContractMember 2017-12-31 0001535929 us-gaap:CreditDefaultSwapMember 2017-12-31 0001535929 us-gaap:EquityContractMember 2017-12-31 0001535929 us-gaap:ForeignExchangeContractMember us-gaap:CashFlowHedgingMember us-gaap:DesignatedAsHedgingInstrumentMember voya:OtherNetRealizedCapitalGainsLossesMember 2018-01-01 2018-12-31 0001535929 us-gaap:EmbeddedDerivativeFinancialInstrumentsMember voya:PolicyholderBenefitsMember 2017-01-01 2017-12-31 0001535929 us-gaap:ForeignExchangeContractMember us-gaap:NondesignatedMember voya:OtherNetRealizedCapitalGainsLossesMember 2016-01-01 2016-12-31 0001535929 us-gaap:ForeignExchangeContractMember us-gaap:NondesignatedMember voya:OtherNetRealizedCapitalGainsLossesMember 2017-01-01 2017-12-31 0001535929 us-gaap:ForeignExchangeContractMember us-gaap:NondesignatedMember voya:OtherNetRealizedCapitalGainsLossesMember 2018-01-01 2018-12-31 0001535929 us-gaap:InterestRateContractMember us-gaap:NondesignatedMember voya:OtherNetRealizedCapitalGainsLossesMember 2017-01-01 2017-12-31 0001535929 us-gaap:EmbeddedDerivativeFinancialInstrumentsMember voya:PolicyholderBenefitsMember 2016-01-01 2016-12-31 0001535929 us-gaap:FixedMaturitiesMember voya:OtherNetRealizedCapitalGainsLossesMember 2018-01-01 2018-12-31 0001535929 us-gaap:InterestRateContractMember us-gaap:FairValueHedgingMember us-gaap:DesignatedAsHedgingInstrumentMember voya:OtherNetRealizedCapitalGainsLossesMember 2018-01-01 2018-12-31 0001535929 us-gaap:InterestRateContractMember us-gaap:NondesignatedMember voya:OtherNetRealizedCapitalGainsLossesMember 2018-01-01 2018-12-31 0001535929 us-gaap:FixedMaturitiesMember voya:OtherNetRealizedCapitalGainsLossesMember 2017-01-01 2017-12-31 0001535929 us-gaap:InterestRateContractMember us-gaap:FairValueHedgingMember us-gaap:DesignatedAsHedgingInstrumentMember voya:OtherNetRealizedCapitalGainsLossesMember 2017-01-01 2017-12-31 0001535929 us-gaap:CreditDefaultSwapMember us-gaap:NondesignatedMember voya:OtherNetRealizedCapitalGainsLossesMember 2016-01-01 2016-12-31 0001535929 us-gaap:ForeignExchangeContractMember us-gaap:CashFlowHedgingMember us-gaap:DesignatedAsHedgingInstrumentMember voya:OtherNetRealizedCapitalGainsLossesMember 2017-01-01 2017-12-31 0001535929 us-gaap:EquityContractMember us-gaap:NondesignatedMember voya:OtherNetRealizedCapitalGainsLossesMember 2018-01-01 2018-12-31 0001535929 us-gaap:InterestRateContractMember us-gaap:CashFlowHedgingMember us-gaap:DesignatedAsHedgingInstrumentMember voya:OtherNetRealizedCapitalGainsLossesMember 2016-01-01 2016-12-31 0001535929 us-gaap:FixedMaturitiesMember voya:OtherNetRealizedCapitalGainsLossesMember 2016-01-01 2016-12-31 0001535929 us-gaap:ProductMember voya:OtherNetRealizedCapitalGainsLossesMember 2016-01-01 2016-12-31 0001535929 us-gaap:ProductMember voya:OtherNetRealizedCapitalGainsLossesMember 2018-01-01 2018-12-31 0001535929 us-gaap:EmbeddedDerivativeFinancialInstrumentsMember voya:PolicyholderBenefitsMember 2018-01-01 2018-12-31 0001535929 us-gaap:InterestRateContractMember us-gaap:CashFlowHedgingMember us-gaap:DesignatedAsHedgingInstrumentMember voya:OtherNetRealizedCapitalGainsLossesMember 2017-01-01 2017-12-31 0001535929 us-gaap:EquityContractMember us-gaap:NondesignatedMember voya:OtherNetRealizedCapitalGainsLossesMember 2017-01-01 2017-12-31 0001535929 us-gaap:ForeignExchangeContractMember us-gaap:CashFlowHedgingMember us-gaap:DesignatedAsHedgingInstrumentMember voya:OtherNetRealizedCapitalGainsLossesMember 2016-01-01 2016-12-31 0001535929 us-gaap:InterestRateContractMember us-gaap:NondesignatedMember voya:OtherNetRealizedCapitalGainsLossesMember 2016-01-01 2016-12-31 0001535929 us-gaap:CreditDefaultSwapMember us-gaap:NondesignatedMember voya:OtherNetRealizedCapitalGainsLossesMember 2018-01-01 2018-12-31 0001535929 us-gaap:EquityContractMember us-gaap:NondesignatedMember voya:OtherNetRealizedCapitalGainsLossesMember 2016-01-01 2016-12-31 0001535929 us-gaap:InterestRateContractMember us-gaap:FairValueHedgingMember us-gaap:DesignatedAsHedgingInstrumentMember voya:OtherNetRealizedCapitalGainsLossesMember 2016-01-01 2016-12-31 0001535929 us-gaap:ProductMember voya:OtherNetRealizedCapitalGainsLossesMember 2017-01-01 2017-12-31 0001535929 us-gaap:CreditDefaultSwapMember us-gaap:NondesignatedMember voya:OtherNetRealizedCapitalGainsLossesMember 2017-01-01 2017-12-31 0001535929 us-gaap:InterestRateContractMember us-gaap:CashFlowHedgingMember us-gaap:DesignatedAsHedgingInstrumentMember voya:OtherNetRealizedCapitalGainsLossesMember 2018-01-01 2018-12-31 0001535929 us-gaap:CreditDefaultSwapMember us-gaap:NondesignatedMember 2018-01-01 2018-12-31 0001535929 voya:PayablesUnderSecuritiesLoanAgreementIncludingCollateralHeldMember us-gaap:ExchangeClearedMember 2017-12-31 0001535929 voya:PayablesUnderSecuritiesLoanAgreementIncludingCollateralHeldMember us-gaap:ExchangeClearedMember 2018-12-31 0001535929 voya:PayablesUnderSecuritiesLoanAgreementIncludingCollateralHeldMember us-gaap:OverTheCounterMember 2018-12-31 0001535929 voya:PayablesUnderSecuritiesLoanAgreementIncludingCollateralHeldMember us-gaap:OverTheCounterMember 2017-12-31 0001535929 us-gaap:CreditDefaultSwapMember us-gaap:NondesignatedMember 2017-01-01 2017-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember voya:OtherGuaranteedBenefitDerivativesMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember voya:EmbeddedDerivativeIndexedUniversalLifeMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:USStatesAndPoliticalSubdivisionsMember 2018-12-31 0001535929 us-gaap:ForeignExchangeContractMember us-gaap:FairValueMeasurementsRecurringMember 2018-12-31 0001535929 us-gaap:FairValueMeasurementsRecurringMember us-gaap:USStatesAndPoliticalSubdivisionsMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquitySecuritiesMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember voya:U.S.CorporatePublicSecuritiesMember 2018-12-31 0001535929 us-gaap:InterestRateContractMember us-gaap:FairValueMeasurementsRecurringMember 2018-12-31 0001535929 us-gaap:InterestRateContractMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2018-12-31 0001535929 us-gaap:FairValueMeasurementsRecurringMember voya:U.S.CorporatePublicSecuritiesMember 2018-12-31 0001535929 us-gaap:FairValueMeasurementsRecurringMember voya:EmbeddedDerivativeIndexedUniversalLifeMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember voya:U.S.CorporatePrivateSecuritiesMember 2018-12-31 0001535929 us-gaap:CreditDefaultSwapMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2018-12-31 0001535929 us-gaap:EquityContractMember us-gaap:FairValueMeasurementsRecurringMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommercialMortgageBackedSecuritiesMember 2018-12-31 0001535929 us-gaap:CreditDefaultSwapMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember 2018-12-31 0001535929 us-gaap:ForeignExchangeContractMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:ResidentialMortgageBackedSecuritiesMember 2018-12-31 0001535929 us-gaap:CreditDefaultSwapMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember 2018-12-31 0001535929 us-gaap:FairValueMeasurementsRecurringMember voya:ForeignCorporatePrivateSecuritiesMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember 2018-12-31 0001535929 us-gaap:FairValueMeasurementsRecurringMember 2018-12-31 0001535929 us-gaap:ForeignExchangeContractMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2018-12-31 0001535929 us-gaap:EmbeddedDerivativeFinancialInstrumentsMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2018-12-31 0001535929 us-gaap:EmbeddedDerivativeFinancialInstrumentsMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember voya:OtherGuaranteedBenefitDerivativesMember 2018-12-31 0001535929 us-gaap:ForeignExchangeContractMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:USTreasurySecuritiesMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquitySecuritiesMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember voya:StabilizerProductsAndManagedCustodyGuaranteeMcgProductsMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:USStatesAndPoliticalSubdivisionsMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember voya:ForeignCorporatePublicSecuritiesandForeignGovernmentsMember 2018-12-31 0001535929 us-gaap:EquityContractMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2018-12-31 0001535929 us-gaap:InterestRateContractMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember 2018-12-31 0001535929 us-gaap:FairValueMeasurementsRecurringMember voya:U.S.CorporatePrivateSecuritiesMember 2018-12-31 0001535929 us-gaap:EquityContractMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember voya:EmbeddedDerivativeIndexedUniversalLifeMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquitySecuritiesMember 2018-12-31 0001535929 us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommercialMortgageBackedSecuritiesMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:USStatesAndPoliticalSubdivisionsMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember voya:ForeignCorporatePrivateSecuritiesMember 2018-12-31 0001535929 us-gaap:FairValueMeasurementsRecurringMember voya:ForeignCorporatePublicSecuritiesandForeignGovernmentsMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:USTreasurySecuritiesMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:AssetBackedSecuritiesMember 2018-12-31 0001535929 us-gaap:FairValueMeasurementsRecurringMember us-gaap:USTreasurySecuritiesMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember voya:ForeignCorporatePublicSecuritiesandForeignGovernmentsMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:USTreasuryAndGovernmentMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember voya:ForeignCorporatePublicSecuritiesandForeignGovernmentsMember 2018-12-31 0001535929 us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquitySecuritiesMember 2018-12-31 0001535929 us-gaap:EquityContractMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:ResidentialMortgageBackedSecuritiesMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:AssetBackedSecuritiesMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember voya:U.S.CorporatePrivateSecuritiesMember 2018-12-31 0001535929 us-gaap:CreditDefaultSwapMember us-gaap:FairValueMeasurementsRecurringMember 2018-12-31 0001535929 us-gaap:EmbeddedDerivativeFinancialInstrumentsMember us-gaap:FairValueMeasurementsRecurringMember 2018-12-31 0001535929 us-gaap:InterestRateContractMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:USTreasuryAndGovernmentMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember voya:StabilizerProductsAndManagedCustodyGuaranteeMcgProductsMember 2018-12-31 0001535929 us-gaap:FairValueMeasurementsRecurringMember us-gaap:AssetBackedSecuritiesMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember voya:EmbeddedDerivativeIndexedUniversalLifeMember 2018-12-31 0001535929 us-gaap:FairValueMeasurementsRecurringMember us-gaap:ResidentialMortgageBackedSecuritiesMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember voya:U.S.CorporatePublicSecuritiesMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember voya:U.S.CorporatePrivateSecuritiesMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember voya:ForeignCorporatePrivateSecuritiesMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember voya:StabilizerProductsAndManagedCustodyGuaranteeMcgProductsMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:USTreasuryAndGovernmentMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommercialMortgageBackedSecuritiesMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember voya:OtherGuaranteedBenefitDerivativesMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember voya:ForeignCorporatePrivateSecuritiesMember 2018-12-31 0001535929 us-gaap:FairValueMeasurementsRecurringMember us-gaap:USTreasuryAndGovernmentMember 2018-12-31 0001535929 us-gaap:EmbeddedDerivativeFinancialInstrumentsMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember 2018-12-31 0001535929 us-gaap:FairValueMeasurementsRecurringMember voya:StabilizerProductsAndManagedCustodyGuaranteeMcgProductsMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember voya:U.S.CorporatePublicSecuritiesMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:AssetBackedSecuritiesMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:USTreasurySecuritiesMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommercialMortgageBackedSecuritiesMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:ResidentialMortgageBackedSecuritiesMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2017-12-31 0001535929 us-gaap:CreditDefaultSwapMember us-gaap:FairValueMeasurementsRecurringMember 2017-12-31 0001535929 us-gaap:FairValueMeasurementsRecurringMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:ResidentialMortgageBackedSecuritiesMember 2017-12-31 0001535929 us-gaap:FairValueMeasurementsRecurringMember us-gaap:ResidentialMortgageBackedSecuritiesMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember voya:U.S.CorporatePrivateSecuritiesMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember voya:OtherGuaranteedBenefitDerivativesMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember voya:EmbeddedDerivativeIndexedUniversalLifeMember 2017-12-31 0001535929 us-gaap:ForeignExchangeContractMember us-gaap:FairValueMeasurementsRecurringMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:USTreasuryAndGovernmentMember 2017-12-31 0001535929 us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquitySecuritiesMember 2017-12-31 0001535929 us-gaap:CreditDefaultSwapMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember 2017-12-31 0001535929 us-gaap:EquityContractMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2017-12-31 0001535929 us-gaap:EmbeddedDerivativeFinancialInstrumentsMember us-gaap:FairValueMeasurementsRecurringMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:USStatesAndPoliticalSubdivisionsMember 2017-12-31 0001535929 us-gaap:EquityContractMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:USStatesAndPoliticalSubdivisionsMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember voya:EmbeddedDerivativeIndexedUniversalLifeMember 2017-12-31 0001535929 us-gaap:InterestRateContractMember us-gaap:FairValueMeasurementsRecurringMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquitySecuritiesMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember voya:ForeignCorporatePrivateSecuritiesMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember voya:U.S.CorporatePrivateSecuritiesMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember voya:StabilizerProductsAndManagedCustodyGuaranteeMcgProductsMember 2017-12-31 0001535929 us-gaap:InterestRateContractMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember voya:ForeignCorporatePublicSecuritiesandForeignGovernmentsMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember voya:ForeignCorporatePublicSecuritiesandForeignGovernmentsMember 2017-12-31 0001535929 us-gaap:ForeignExchangeContractMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember 2017-12-31 0001535929 us-gaap:FairValueMeasurementsRecurringMember voya:U.S.CorporatePublicSecuritiesMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquitySecuritiesMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:USStatesAndPoliticalSubdivisionsMember 2017-12-31 0001535929 us-gaap:CreditDefaultSwapMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2017-12-31 0001535929 us-gaap:InterestRateContractMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember voya:U.S.CorporatePublicSecuritiesMember 2017-12-31 0001535929 us-gaap:CreditDefaultSwapMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember voya:OtherGuaranteedBenefitDerivativesMember 2017-12-31 0001535929 us-gaap:InterestRateContractMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:AssetBackedSecuritiesMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember voya:StabilizerProductsAndManagedCustodyGuaranteeMcgProductsMember 2017-12-31 0001535929 us-gaap:EquityContractMember us-gaap:FairValueMeasurementsRecurringMember 2017-12-31 0001535929 us-gaap:ForeignExchangeContractMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember 2017-12-31 0001535929 us-gaap:EquityContractMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember voya:U.S.CorporatePublicSecuritiesMember 2017-12-31 0001535929 us-gaap:FairValueMeasurementsRecurringMember us-gaap:USStatesAndPoliticalSubdivisionsMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember voya:EmbeddedDerivativeIndexedUniversalLifeMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:USTreasurySecuritiesMember 2017-12-31 0001535929 us-gaap:FairValueMeasurementsRecurringMember us-gaap:USTreasurySecuritiesMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember voya:U.S.CorporatePrivateSecuritiesMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember voya:ProductGuaranteesMember 2017-12-31 0001535929 us-gaap:EmbeddedDerivativeFinancialInstrumentsMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember voya:ForeignCorporatePublicSecuritiesandForeignGovernmentsMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommercialMortgageBackedSecuritiesMember 2017-12-31 0001535929 us-gaap:EmbeddedDerivativeFinancialInstrumentsMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember voya:StabilizerProductsAndManagedCustodyGuaranteeMcgProductsMember 2017-12-31 0001535929 us-gaap:FairValueMeasurementsRecurringMember voya:StabilizerProductsAndManagedCustodyGuaranteeMcgProductsMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquitySecuritiesMember 2017-12-31 0001535929 us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommercialMortgageBackedSecuritiesMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:AssetBackedSecuritiesMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:USTreasurySecuritiesMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:USTreasuryAndGovernmentMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:USTreasuryAndGovernmentMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember voya:ForeignCorporatePrivateSecuritiesMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:AssetBackedSecuritiesMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:USTreasurySecuritiesMember 2017-12-31 0001535929 us-gaap:FairValueMeasurementsRecurringMember voya:EmbeddedDerivativeIndexedUniversalLifeMember 2017-12-31 0001535929 us-gaap:ForeignExchangeContractMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommercialMortgageBackedSecuritiesMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:ResidentialMortgageBackedSecuritiesMember 2017-12-31 0001535929 us-gaap:FairValueMeasurementsRecurringMember voya:ForeignCorporatePublicSecuritiesandForeignGovernmentsMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember voya:ForeignCorporatePrivateSecuritiesMember 2017-12-31 0001535929 us-gaap:EmbeddedDerivativeFinancialInstrumentsMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:ResidentialMortgageBackedSecuritiesMember 2017-12-31 0001535929 us-gaap:FairValueMeasurementsRecurringMember voya:U.S.CorporatePrivateSecuritiesMember 2017-12-31 0001535929 us-gaap:FairValueMeasurementsRecurringMember us-gaap:AssetBackedSecuritiesMember 2017-12-31 0001535929 us-gaap:FairValueMeasurementsRecurringMember us-gaap:USTreasuryAndGovernmentMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommercialMortgageBackedSecuritiesMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember voya:U.S.CorporatePublicSecuritiesMember 2017-12-31 0001535929 us-gaap:FairValueMeasurementsRecurringMember voya:ForeignCorporatePrivateSecuritiesMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember voya:OtherGuaranteedBenefitDerivativesMember 2017-12-31 0001535929 us-gaap:DerivativeMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember 2018-01-01 2018-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember voya:SeparateAccountAssetsMember 2018-01-01 2018-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommercialMortgageBackedSecuritiesMember 2018-01-01 2018-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember voya:ForeignCorporatePrivateSecuritiesMember 2018-01-01 2018-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember voya:OtherGuaranteedBenefitDerivativesMember 2018-01-01 2018-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:ResidentialMortgageBackedSecuritiesMember 2018-01-01 2018-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:FixedMaturitiesMember 2018-01-01 2018-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:AssetBackedSecuritiesMember 2018-01-01 2018-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquitySecuritiesMember 2018-01-01 2018-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember voya:U.S.CorporatePublicSecuritiesMember 2018-01-01 2018-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:FixedMaturitiesMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember voya:U.S.CorporatePrivateSecuritiesMember 2018-01-01 2018-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember voya:ForeignCorporatePublicSecuritiesandForeignGovernmentsMember 2018-01-01 2018-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember voya:EmbeddedDerivativeIndexedUniversalLifeMember 2018-01-01 2018-12-31 0001535929 us-gaap:DerivativeMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember voya:StabilizerProductsAndManagedCustodyGuaranteeMcgProductsMember 2018-01-01 2018-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember voya:SeparateAccountAssetsMember 2017-12-31 0001535929 us-gaap:DerivativeMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:FixedMaturitiesMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember voya:SeparateAccountAssetsMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember voya:ForeignCorporatePrivateSecuritiesMember 2017-01-01 2017-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember voya:StabilizerProductsAndManagedCustodyGuaranteeMcgProductsMember 2017-01-01 2017-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember voya:EmbeddedDerivativeIndexedUniversalLifeMember 2017-01-01 2017-12-31 0001535929 us-gaap:DerivativeMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember 2017-01-01 2017-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:ResidentialMortgageBackedSecuritiesMember 2017-01-01 2017-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember voya:ForeignCorporatePublicSecuritiesandForeignGovernmentsMember 2017-01-01 2017-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember voya:U.S.CorporatePrivateSecuritiesMember 2017-01-01 2017-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:AssetBackedSecuritiesMember 2017-01-01 2017-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:FixedMaturitiesMember 2017-01-01 2017-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember voya:SeparateAccountAssetsMember 2017-01-01 2017-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquitySecuritiesMember 2016-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember voya:U.S.CorporatePublicSecuritiesMember 2017-01-01 2017-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommercialMortgageBackedSecuritiesMember 2017-01-01 2017-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquitySecuritiesMember 2017-01-01 2017-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember voya:U.S.CorporatePrivateSecuritiesMember 2016-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember voya:EmbeddedDerivativeIndexedUniversalLifeMember 2016-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember voya:ForeignCorporatePublicSecuritiesandForeignGovernmentsMember 2016-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember voya:OtherGuaranteedBenefitDerivativesMember 2017-01-01 2017-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommercialMortgageBackedSecuritiesMember 2016-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:AssetBackedSecuritiesMember 2016-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:ResidentialMortgageBackedSecuritiesMember 2016-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember voya:ForeignCorporatePrivateSecuritiesMember 2016-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember voya:SeparateAccountAssetsMember 2016-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:FixedMaturitiesMember 2016-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember voya:StabilizerProductsAndManagedCustodyGuaranteeMcgProductsMember 2016-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember voya:U.S.CorporatePublicSecuritiesMember 2016-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember voya:OtherGuaranteedBenefitDerivativesMember 2016-12-31 0001535929 us-gaap:DerivativeMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember 2016-12-31 0001535929 voya:StabilizerProductsAndManagedCustodyGuaranteeMcgProductsMember 2017-12-31 0001535929 voya:StabilizerInvestmentOnlyAndMcgContractsMember 2017-12-31 0001535929 voya:StabilizerWithRecordkeepingAgreementsMember 2017-12-31 0001535929 us-gaap:EstimateOfFairValueFairValueDisclosureMember voya:InvestmentContractWithoutFixedMaturityMember 2018-12-31 0001535929 us-gaap:CarryingReportedAmountFairValueDisclosureMember voya:EmbeddedDerivativeIndexedUniversalLifeMember 2018-12-31 0001535929 us-gaap:EstimateOfFairValueFairValueDisclosureMember 2018-12-31 0001535929 us-gaap:CarryingReportedAmountFairValueDisclosureMember voya:StabilizerProductsAndManagedCustodyGuaranteeMcgProductsMember 2018-12-31 0001535929 us-gaap:EstimateOfFairValueFairValueDisclosureMember 2017-12-31 0001535929 us-gaap:CarryingReportedAmountFairValueDisclosureMember voya:SupplementaryContractsAndImmediateAnnuitiesMember 2017-12-31 0001535929 us-gaap:CarryingReportedAmountFairValueDisclosureMember 2018-12-31 0001535929 us-gaap:CarryingReportedAmountFairValueDisclosureMember us-gaap:MortgagesMember 2017-12-31 0001535929 us-gaap:DerivativeMember us-gaap:EstimateOfFairValueFairValueDisclosureMember 2017-12-31 0001535929 us-gaap:EstimateOfFairValueFairValueDisclosureMember voya:EmbeddedDerivativeIndexedUniversalLifeMember 2018-12-31 0001535929 us-gaap:EstimateOfFairValueFairValueDisclosureMember voya:InvestmentContractWithFixedMaturityMember 2017-12-31 0001535929 us-gaap:DerivativeMember us-gaap:EstimateOfFairValueFairValueDisclosureMember 2018-12-31 0001535929 us-gaap:EstimateOfFairValueFairValueDisclosureMember us-gaap:MortgagesMember 2017-12-31 0001535929 us-gaap:DerivativeMember us-gaap:CarryingReportedAmountFairValueDisclosureMember 2018-12-31 0001535929 us-gaap:CarryingReportedAmountFairValueDisclosureMember 2017-12-31 0001535929 us-gaap:CarryingReportedAmountFairValueDisclosureMember voya:InvestmentContractWithFixedMaturityMember 2017-12-31 0001535929 us-gaap:EstimateOfFairValueFairValueDisclosureMember voya:StabilizerProductsAndManagedCustodyGuaranteeMcgProductsMember 2018-12-31 0001535929 us-gaap:EstimateOfFairValueFairValueDisclosureMember us-gaap:PolicyLoansMember 2017-12-31 0001535929 us-gaap:CarryingReportedAmountFairValueDisclosureMember us-gaap:PolicyLoansMember 2018-12-31 0001535929 us-gaap:EmbeddedDerivativeFinancialInstrumentsMember us-gaap:EstimateOfFairValueFairValueDisclosureMember 2018-12-31 0001535929 us-gaap:CarryingReportedAmountFairValueDisclosureMember voya:EmbeddedDerivativeIndexedUniversalLifeMember 2017-12-31 0001535929 us-gaap:EstimateOfFairValueFairValueDisclosureMember voya:InvestmentContractWithFixedMaturityMember 2018-12-31 0001535929 us-gaap:EstimateOfFairValueFairValueDisclosureMember voya:EmbeddedDerivativeIndexedUniversalLifeMember 2017-12-31 0001535929 us-gaap:CarryingReportedAmountFairValueDisclosureMember voya:InvestmentContractWithoutFixedMaturityMember 2018-12-31 0001535929 us-gaap:EstimateOfFairValueFairValueDisclosureMember voya:InvestmentContractWithoutFixedMaturityMember 2017-12-31 0001535929 us-gaap:EstimateOfFairValueFairValueDisclosureMember voya:StabilizerProductsAndManagedCustodyGuaranteeMcgProductsMember 2017-12-31 0001535929 us-gaap:CarryingReportedAmountFairValueDisclosureMember us-gaap:PolicyLoansMember 2017-12-31 0001535929 us-gaap:CarryingReportedAmountFairValueDisclosureMember voya:OtherGuaranteedBenefitDerivativesMember 2017-12-31 0001535929 us-gaap:EstimateOfFairValueFairValueDisclosureMember us-gaap:PolicyLoansMember 2018-12-31 0001535929 us-gaap:EmbeddedDerivativeFinancialInstrumentsMember us-gaap:EstimateOfFairValueFairValueDisclosureMember 2017-12-31 0001535929 us-gaap:CarryingReportedAmountFairValueDisclosureMember us-gaap:MortgagesMember 2018-12-31 0001535929 us-gaap:CarryingReportedAmountFairValueDisclosureMember voya:InvestmentContractWithFixedMaturityMember 2018-12-31 0001535929 us-gaap:EmbeddedDerivativeFinancialInstrumentsMember us-gaap:CarryingReportedAmountFairValueDisclosureMember 2017-12-31 0001535929 us-gaap:CarryingReportedAmountFairValueDisclosureMember voya:OtherGuaranteedBenefitDerivativesMember 2018-12-31 0001535929 us-gaap:CarryingReportedAmountFairValueDisclosureMember voya:StabilizerProductsAndManagedCustodyGuaranteeMcgProductsMember 2017-12-31 0001535929 us-gaap:CarryingReportedAmountFairValueDisclosureMember voya:InvestmentContractWithoutFixedMaturityMember 2017-12-31 0001535929 us-gaap:DerivativeMember us-gaap:CarryingReportedAmountFairValueDisclosureMember 2017-12-31 0001535929 us-gaap:EmbeddedDerivativeFinancialInstrumentsMember us-gaap:CarryingReportedAmountFairValueDisclosureMember 2018-12-31 0001535929 us-gaap:CarryingReportedAmountFairValueDisclosureMember voya:SupplementaryContractsAndImmediateAnnuitiesMember 2018-12-31 0001535929 us-gaap:EstimateOfFairValueFairValueDisclosureMember voya:SupplementaryContractsAndImmediateAnnuitiesMember 2017-12-31 0001535929 us-gaap:EstimateOfFairValueFairValueDisclosureMember voya:SupplementaryContractsAndImmediateAnnuitiesMember 2018-12-31 0001535929 us-gaap:EstimateOfFairValueFairValueDisclosureMember us-gaap:MortgagesMember 2018-12-31 0001535929 voya:StabilizerWithRecordkeepingAgreementsMember 2018-12-31 0001535929 voya:StabilizerProductsAndManagedCustodyGuaranteeMcgProductsMember 2018-12-31 0001535929 voya:StabilizerInvestmentOnlyAndMcgContractsMember 2018-12-31 0001535929 srt:MaximumMember us-gaap:DerivativeFinancialInstrumentsLiabilitiesMember voya:StabilizerInvestmentOnlyAndMcgContractsMember us-gaap:MarketApproachValuationTechniqueMember 2018-01-01 2018-12-31 0001535929 srt:MinimumMember us-gaap:DerivativeFinancialInstrumentsLiabilitiesMember voya:StabilizerWithRecordkeepingAgreementsMember us-gaap:MarketApproachValuationTechniqueMember 2018-01-01 2018-12-31 0001535929 srt:MaximumMember us-gaap:DerivativeFinancialInstrumentsLiabilitiesMember voya:StabilizerWithRecordkeepingAgreementsMember us-gaap:MarketApproachValuationTechniqueMember 2018-01-01 2018-12-31 0001535929 srt:MinimumMember us-gaap:DerivativeFinancialInstrumentsLiabilitiesMember voya:StabilizerInvestmentOnlyAndMcgContractsMember us-gaap:MarketApproachValuationTechniqueMember 2018-01-01 2018-12-31 0001535929 srt:MaximumMember us-gaap:DerivativeFinancialInstrumentsLiabilitiesMember voya:StabilizerProductsAndManagedCustodyGuaranteeMcgProductsMember us-gaap:MarketApproachValuationTechniqueMember 2018-01-01 2018-12-31 0001535929 srt:MinimumMember us-gaap:DerivativeFinancialInstrumentsLiabilitiesMember voya:StabilizerProductsAndManagedCustodyGuaranteeMcgProductsMember us-gaap:MarketApproachValuationTechniqueMember 2018-01-01 2018-12-31 0001535929 srt:MaximumMember us-gaap:InvestmentContractsMember voya:EmbeddedDerivativeIndexedUniversalLifeMember us-gaap:MarketApproachValuationTechniqueMember 2018-01-01 2018-12-31 0001535929 srt:MinimumMember us-gaap:InvestmentContractsMember voya:EmbeddedDerivativeIndexedUniversalLifeMember us-gaap:MarketApproachValuationTechniqueMember 2018-01-01 2018-12-31 0001535929 srt:MaximumMember us-gaap:DerivativeFinancialInstrumentsLiabilitiesMember voya:StabilizerProductsAndManagedCustodyGuaranteeMcgProductsMember us-gaap:MarketApproachValuationTechniqueMember 2017-01-01 2017-12-31 0001535929 srt:MinimumMember us-gaap:InvestmentContractsMember voya:EmbeddedDerivativeIndexedUniversalLifeMember us-gaap:MarketApproachValuationTechniqueMember 2017-01-01 2017-12-31 0001535929 srt:MaximumMember us-gaap:InvestmentContractsMember voya:EmbeddedDerivativeIndexedUniversalLifeMember us-gaap:MarketApproachValuationTechniqueMember 2017-01-01 2017-12-31 0001535929 srt:MinimumMember us-gaap:DerivativeFinancialInstrumentsLiabilitiesMember voya:StabilizerProductsAndManagedCustodyGuaranteeMcgProductsMember us-gaap:MarketApproachValuationTechniqueMember 2017-01-01 2017-12-31 0001535929 srt:MinimumMember us-gaap:DerivativeFinancialInstrumentsLiabilitiesMember voya:StabilizerInvestmentOnlyAndMcgContractsMember us-gaap:MarketApproachValuationTechniqueMember 2017-01-01 2017-12-31 0001535929 srt:MaximumMember us-gaap:DerivativeFinancialInstrumentsLiabilitiesMember voya:StabilizerWithRecordkeepingAgreementsMember us-gaap:MarketApproachValuationTechniqueMember 2017-01-01 2017-12-31 0001535929 srt:MinimumMember us-gaap:DerivativeFinancialInstrumentsLiabilitiesMember voya:StabilizerWithRecordkeepingAgreementsMember us-gaap:MarketApproachValuationTechniqueMember 2017-01-01 2017-12-31 0001535929 srt:MaximumMember us-gaap:DerivativeFinancialInstrumentsLiabilitiesMember voya:StabilizerInvestmentOnlyAndMcgContractsMember us-gaap:MarketApproachValuationTechniqueMember 2017-01-01 2017-12-31 0001535929 voya:GuaranteedMinimumInterestRatesMember 2018-01-01 2018-12-31 0001535929 srt:MaximumMember 2016-01-01 2016-12-31 0001535929 srt:MinimumMember 2016-01-01 2016-12-31 0001535929 srt:MaximumMember 2017-01-01 2017-12-31 0001535929 voya:GuaranteedMinimumInterestRatesMember 2017-01-01 2017-12-31 0001535929 srt:MinimumMember 2017-01-01 2017-12-31 0001535929 us-gaap:GuaranteedInvestmentContractMember 2017-12-31 0001535929 us-gaap:DeferredVariableAnnuityMember 2018-12-31 0001535929 us-gaap:UniversalLifeMember 2018-12-31 0001535929 us-gaap:NontraditionalLongDurationContractsMember 2017-12-31 0001535929 us-gaap:UniversalLifeMember 2017-12-31 0001535929 us-gaap:GuaranteedInvestmentContractMember 2018-12-31 0001535929 us-gaap:AccidentAndHealthInsuranceSegmentMember 2017-12-31 0001535929 us-gaap:LifeInsuranceSegmentMember 2018-12-31 0001535929 us-gaap:LifeInsuranceSegmentMember 2017-12-31 0001535929 us-gaap:AccidentAndHealthInsuranceSegmentMember 2018-12-31 0001535929 us-gaap:DeferredVariableAnnuityMember 2017-12-31 0001535929 us-gaap:NontraditionalLongDurationContractsMember 2018-12-31 0001535929 voya:StabilizerProductsAndManagedCustodyGuaranteeMcgProductsMember 2017-01-01 2017-12-31 0001535929 voya:OtherRetainedBusinessMember 2016-01-01 2016-12-31 0001535929 voya:OtherRetainedBusinessMember 2016-12-31 0001535929 voya:OtherRetainedBusinessMember 2018-12-31 0001535929 voya:VariableLifeAndUniversalLifeMember 2018-12-31 0001535929 voya:StabilizerProductsAndManagedCustodyGuaranteeMcgProductsMember 2016-01-01 2016-12-31 0001535929 voya:StabilizerProductsAndManagedCustodyGuaranteeMcgProductsMember 2018-01-01 2018-12-31 0001535929 voya:VariableLifeAndUniversalLifeMember 2016-12-31 0001535929 voya:StabilizerProductsAndManagedCustodyGuaranteeMcgProductsMember 2017-12-31 0001535929 voya:StabilizerProductsAndManagedCustodyGuaranteeMcgProductsMember 2015-12-31 0001535929 voya:OtherRetainedBusinessMember 2018-01-01 2018-12-31 0001535929 voya:VariableLifeAndUniversalLifeMember 2016-01-01 2016-12-31 0001535929 voya:VariableLifeAndUniversalLifeMember 2018-01-01 2018-12-31 0001535929 voya:OtherRetainedBusinessMember 2017-01-01 2017-12-31 0001535929 voya:VariableLifeAndUniversalLifeMember 2017-12-31 0001535929 voya:VariableLifeAndUniversalLifeMember 2017-01-01 2017-12-31 0001535929 voya:StabilizerProductsAndManagedCustodyGuaranteeMcgProductsMember 2016-12-31 0001535929 voya:VariableLifeAndUniversalLifeMember 2015-12-31 0001535929 voya:StabilizerProductsAndManagedCustodyGuaranteeMcgProductsMember 2018-12-31 0001535929 voya:OtherRetainedBusinessMember 2017-12-31 0001535929 voya:OtherRetainedBusinessMember 2015-12-31 0001535929 voya:VariableLifeAndUniversalLifeMember voya:SecondaryGuaranteeMember 2017-12-31 0001535929 voya:VariableLifeAndUniversalLifeMember voya:PaidUpGuaranteeMember 2017-12-31 0001535929 voya:VariableLifeAndUniversalLifeMember voya:PaidUpGuaranteeMember 2018-12-31 0001535929 voya:VariableLifeAndUniversalLifeMember voya:SecondaryGuaranteeMember 2018-12-31 0001535929 voya:VariableLifeAndUniversalLifeMember voya:SecondaryGuaranteeMember 2017-01-01 2017-12-31 0001535929 voya:VariableLifeAndUniversalLifeMember voya:SecondaryGuaranteeMember 2018-01-01 2018-12-31 0001535929 us-gaap:BalancedFundsMember 2018-12-31 0001535929 us-gaap:OtherLongTermInvestmentsMember 2017-12-31 0001535929 us-gaap:MoneyMarketFundsMember 2018-12-31 0001535929 us-gaap:EquityFundsMember 2018-12-31 0001535929 us-gaap:BalancedFundsMember 2017-12-31 0001535929 us-gaap:BondsMember 2017-12-31 0001535929 us-gaap:EquitySecuritiesMember 2018-12-31 0001535929 us-gaap:EquitySecuritiesMember 2017-12-31 0001535929 us-gaap:EquityFundsMember 2017-12-31 0001535929 us-gaap:BondsMember 2018-12-31 0001535929 us-gaap:MoneyMarketFundsMember 2017-12-31 0001535929 us-gaap:OtherLongTermInvestmentsMember 2018-12-31 0001535929 us-gaap:FixedIncomeSecuritiesMember 2018-12-31 0001535929 voya:SeparateAccountLiabilityMember voya:StabilizerProductsAndManagedCustodyGuaranteeMcgProductsMember 2018-12-31 0001535929 voya:VariableLifeAndUniversalLifeMember 2016-01-01 0001535929 voya:SeparateAccountLiabilityMember voya:StabilizerProductsAndManagedCustodyGuaranteeMcgProductsMember 2017-12-31 0001535929 us-gaap:FixedIncomeSecuritiesMember 2017-12-31 0001535929 voya:DirectMember 2017-12-31 0001535929 voya:CededMember 2018-12-31 0001535929 voya:AssumedMember 2018-12-31 0001535929 voya:AssumedMember 2017-12-31 0001535929 voya:DirectMember 2018-12-31 0001535929 voya:CededMember 2017-12-31 0001535929 voya:HannoverReMember us-gaap:CustomerConcentrationRiskMember 2018-12-31 0001535929 us-gaap:UniversalLifeMember 2018-01-01 2018-12-31 0001535929 voya:LincolnNationalCorporationSubsidiaryMember 2017-12-31 0001535929 voya:CertainindividuallifeanddeferredannuitypoliciesfromVIACMember voya:IndividualLifeMember 2018-12-31 0001535929 voya:LincolnNationalCorporationSubsidiaryMember 1998-10-01 1998-10-01 0001535929 voya:HannoverReMember us-gaap:CustomerConcentrationRiskMember 2017-12-31 0001535929 us-gaap:UniversalLifeMember 2016-01-01 2016-12-31 0001535929 voya:UnsecuredAndCommittedMember voya:VoyaFinancialInc.SecurityLifeofDenverInternationalLimitedTwoMember 2017-12-31 0001535929 us-gaap:UniversalLifeMember 2017-01-01 2017-12-31 0001535929 voya:AtheneannuityandlifeMember us-gaap:FixedAnnuityMember 2018-12-31 0001535929 voya:LincolnNationalCorporationSubsidiaryMember 2018-12-31 0001535929 us-gaap:ContractualRightsMember 2017-12-31 0001535929 us-gaap:CustomerRelationshipsMember 2018-01-01 2018-12-31 0001535929 us-gaap:CustomerRelationshipsMember 2018-12-31 0001535929 us-gaap:ContractualRightsMember 2018-12-31 0001535929 us-gaap:ComputerSoftwareIntangibleAssetMember 2017-12-31 0001535929 us-gaap:ComputerSoftwareIntangibleAssetMember 2018-01-01 2018-12-31 0001535929 us-gaap:CustomerRelationshipsMember 2017-12-31 0001535929 us-gaap:ComputerSoftwareIntangibleAssetMember 2018-12-31 0001535929 us-gaap:ContractualRightsMember 2018-01-01 2018-12-31 0001535929 us-gaap:CustomerRelationshipsMember 2017-01-01 2017-12-31 0001535929 us-gaap:ComputerSoftwareIntangibleAssetMember 2017-01-01 2017-12-31 0001535929 us-gaap:ContractualRightsMember 2017-01-01 2017-12-31 0001535929 us-gaap:RestrictedStockUnitsRSUMember 2018-01-01 2018-12-31 0001535929 us-gaap:PerformanceSharesMember 2018-01-01 2018-12-31 0001535929 us-gaap:PerformanceSharesMember 2017-12-31 0001535929 us-gaap:RestrictedStockUnitsRSUMember 2017-12-31 0001535929 us-gaap:PerformanceSharesMember 2018-12-31 0001535929 us-gaap:RestrictedStockUnitsRSUMember 2018-12-31 0001535929 us-gaap:RestrictedStockUnitsRSUMember voya:NonEmployeeDirectorsMember 2016-01-01 2016-12-31 0001535929 voya:A2014OmnibusPlanMember 2018-12-31 0001535929 us-gaap:RestrictedStockUnitsRSUMember 2016-01-01 2016-12-31 0001535929 us-gaap:PerformanceSharesMember 2017-01-01 2017-12-31 0001535929 srt:MaximumMember us-gaap:PerformanceSharesMember 2018-01-01 2018-12-31 0001535929 srt:MinimumMember us-gaap:PerformanceSharesMember 2018-01-01 2018-12-31 0001535929 voya:A2013OmnibusPlanMember 2018-12-31 0001535929 voya:A2013NonEmployeeDirectorIncentivePlanMember 2018-12-31 0001535929 us-gaap:RestrictedStockUnitsRSUMember 2017-01-01 2017-12-31 0001535929 us-gaap:EmployeeStockOptionMember 2018-12-31 0001535929 us-gaap:EmployeeStockOptionMember 2018-01-01 2018-12-31 0001535929 us-gaap:RestrictedStockUnitsRSUMember voya:NonEmployeeDirectorsMember 2018-01-01 2018-12-31 0001535929 us-gaap:RestrictedStockUnitsRSUMember voya:NonEmployeeDirectorsMember 2017-01-01 2017-12-31 0001535929 us-gaap:PerformanceSharesMember 2016-01-01 2016-12-31 0001535929 us-gaap:EmployeeStockOptionMember 2017-12-31 0001535929 us-gaap:EmployeeStockOptionMember 2017-01-01 2017-12-31 0001535929 us-gaap:EmployeeStockOptionMember 2016-01-01 2016-12-31 0001535929 voya:OtherMember 2017-01-01 2017-12-31 0001535929 voya:OtherMember 2018-01-01 2018-12-31 0001535929 voya:OtherMember 2016-01-01 2016-12-31 0001535929 voya:NonEmployeeDirectorsMember us-gaap:ShareBasedCompensationAwardTrancheOneMember 2017-01-01 2017-12-31 0001535929 voya:NonEmployeeDirectorsMember us-gaap:ShareBasedCompensationAwardTrancheOneMember 2016-01-01 2016-12-31 0001535929 voya:NonEmployeeDirectorsMember us-gaap:ShareBasedCompensationAwardTrancheThreeMember 2016-01-01 2016-12-31 0001535929 voya:NonEmployeeDirectorsMember us-gaap:ShareBasedCompensationAwardTrancheTwoMember 2016-01-01 2016-12-31 0001535929 srt:MaximumMember us-gaap:PerformanceSharesMember 2016-01-01 2016-12-31 0001535929 srt:MinimumMember us-gaap:RestrictedStockUnitsRSUMember 2016-01-01 2016-12-31 0001535929 srt:MinimumMember us-gaap:PerformanceSharesMember 2016-01-01 2016-12-31 0001535929 srt:MaximumMember us-gaap:PerformanceSharesMember 2017-01-01 2017-12-31 0001535929 srt:MinimumMember us-gaap:PerformanceSharesMember 2017-01-01 2017-12-31 0001535929 srt:MinimumMember us-gaap:RestrictedStockUnitsRSUMember 2017-01-01 2017-12-31 0001535929 srt:MaximumMember us-gaap:RestrictedStockUnitsRSUMember 2016-01-01 2016-12-31 0001535929 srt:MaximumMember us-gaap:RestrictedStockUnitsRSUMember 2017-01-01 2017-12-31 0001535929 2013-05-07 0001535929 us-gaap:SubsequentEventMember 2019-01-03 2019-01-03 0001535929 voya:RegulatoryCapitalEventMember 2018-12-31 0001535929 2018-02-01 0001535929 2016-06-06 2016-06-06 0001535929 2016-11-03 2016-11-03 0001535929 2018-09-12 0001535929 2018-09-12 2018-09-12 0001535929 2017-03-09 2017-03-09 0001535929 2017-12-26 2017-12-26 0001535929 voya:RatingAgencyEventMember 2018-12-31 0001535929 2018-01-01 2018-03-31 0001535929 2013-05-06 2013-05-07 0001535929 2018-03-26 2018-03-26 0001535929 us-gaap:WarrantMember 2017-01-01 2017-12-31 0001535929 us-gaap:WarrantMember 2016-01-01 2016-12-31 0001535929 us-gaap:WarrantMember 2018-01-01 2018-12-31 0001535929 srt:SubsidiariesMember voya:RoaringRiverIIIncMember stpr:AZ 2018-01-01 2018-12-31 0001535929 voya:InsuranceLawsApplicabletoInsuranceSubsidiariesinColoradoMember 2018-01-01 2018-12-31 0001535929 stpr:MO 2018-12-31 0001535929 stpr:MO 2017-12-31 0001535929 srt:SubsidiariesMember voya:SecurityLifeOfDenverInternationalLimitedMember stpr:AZ 2018-01-01 2018-12-31 0001535929 voya:SecurityLifeOfDenverInternationalLimitedMember stpr:AZ 2018-01-01 2018-12-31 0001535929 stpr:MO 2018-01-01 2018-12-31 0001535929 voya:InsuranceLawsApplicabletoInsuranceSubsidiariesinConnecticutIowaandMinnesotaMember 2018-01-01 2018-12-31 0001535929 voya:SecurityLifeOfDenverInternationalLimitedMember stpr:AZ 2017-01-01 2017-12-31 0001535929 voya:RoaringRiverIIIncMember stpr:AZ 2017-01-01 2017-12-31 0001535929 stpr:MO 2017-01-01 2017-12-31 0001535929 voya:SecurityLifeOfDenverInsuranceCompanyMember stpr:CO 2018-12-31 0001535929 voya:ReliastarLifeInsuranceCompanyMember stpr:MN 2017-12-31 0001535929 voya:SecurityLifeOfDenverInsuranceCompanyMember stpr:CO 2018-01-01 2018-12-31 0001535929 voya:VoyaInsuranceandAnnuityCompanyMember stpr:IA 2017-01-01 2017-12-31 0001535929 voya:VoyaRetirementInsuranceandAnnuityCompanyMember stpr:CT 2016-01-01 2016-12-31 0001535929 voya:VoyaInsuranceandAnnuityCompanyMember stpr:IA 2017-12-31 0001535929 voya:ReliastarLifeInsuranceCompanyMember stpr:MN 2016-01-01 2016-12-31 0001535929 voya:SecurityLifeOfDenverInsuranceCompanyMember stpr:CO 2016-01-01 2016-12-31 0001535929 voya:ReliastarLifeInsuranceCompanyMember stpr:MN 2018-12-31 0001535929 voya:SecurityLifeOfDenverInsuranceCompanyMember stpr:CO 2017-01-01 2017-12-31 0001535929 voya:ReliastarLifeInsuranceCompanyMember stpr:MN 2017-01-01 2017-12-31 0001535929 voya:SecurityLifeOfDenverInsuranceCompanyMember stpr:CO 2017-12-31 0001535929 voya:VoyaInsuranceandAnnuityCompanyMember stpr:IA 2016-01-01 2016-12-31 0001535929 voya:VoyaRetirementInsuranceandAnnuityCompanyMember stpr:CT 2017-01-01 2017-12-31 0001535929 voya:ReliastarLifeInsuranceCompanyMember stpr:MN 2018-01-01 2018-12-31 0001535929 voya:VoyaRetirementInsuranceandAnnuityCompanyMember stpr:CT 2018-01-01 2018-12-31 0001535929 voya:VoyaRetirementInsuranceandAnnuityCompanyMember stpr:CT 2018-12-31 0001535929 voya:VoyaRetirementInsuranceandAnnuityCompanyMember stpr:CT 2017-12-31 0001535929 srt:SubsidiariesMember voya:VoyaInsuranceandAnnuityCompanyMember stpr:IA 2017-01-01 2017-12-31 0001535929 srt:SubsidiariesMember voya:SecurityLifeOfDenverInsuranceCompanyMember stpr:CO 2018-12-31 0001535929 srt:SubsidiariesMember voya:VoyaRetirementInsuranceandAnnuityCompanyMember stpr:CT 2019-12-31 0001535929 srt:SubsidiariesMember voya:SecurityLifeOfDenverInsuranceCompanyMember stpr:CO 2017-01-01 2017-12-31 0001535929 srt:SubsidiariesMember voya:ReliastarLifeInsuranceCompanyMember stpr:MN 2017-01-01 2017-12-31 0001535929 srt:SubsidiariesMember voya:VoyaRetirementInsuranceandAnnuityCompanyMember stpr:CT 2018-12-31 0001535929 srt:SubsidiariesMember voya:ReliastarLifeInsuranceCompanyMember stpr:MN 2019-12-31 0001535929 srt:SubsidiariesMember voya:SecurityLifeOfDenverInsuranceCompanyMember stpr:CO 2019-12-31 0001535929 srt:SubsidiariesMember voya:SecurityLifeOfDenverInsuranceCompanyMember stpr:CO 2018-01-01 2018-12-31 0001535929 srt:SubsidiariesMember voya:VoyaInsuranceandAnnuityCompanyMember stpr:IA 2018-01-01 2018-12-31 0001535929 srt:SubsidiariesMember voya:VoyaInsuranceandAnnuityCompanyMember stpr:IA 2018-12-31 0001535929 srt:SubsidiariesMember voya:VoyaRetirementInsuranceandAnnuityCompanyMember stpr:CT 2017-01-01 2017-12-31 0001535929 srt:SubsidiariesMember voya:ReliastarLifeInsuranceCompanyMember stpr:MN 2018-01-01 2018-12-31 0001535929 srt:SubsidiariesMember voya:VoyaRetirementInsuranceandAnnuityCompanyMember stpr:CT 2018-01-01 2018-12-31 0001535929 srt:SubsidiariesMember voya:ReliastarLifeInsuranceCompanyMember stpr:MN 2018-12-31 0001535929 voya:MortalityTableAssumptionMember 2018-01-01 2018-12-31 0001535929 voya:DiscountRateMember 2017-01-01 2017-12-31 0001535929 voya:MortalityTableAssumptionMember 2017-01-01 2017-12-31 0001535929 voya:AssetReturnsMember 2016-01-01 2016-12-31 0001535929 voya:DemographicDataandotherMember 2017-01-01 2017-12-31 0001535929 voya:MortalityTableAssumptionMember 2016-01-01 2016-12-31 0001535929 voya:DiscountRateMember 2018-01-01 2018-12-31 0001535929 voya:AssetReturnsMember 2018-01-01 2018-12-31 0001535929 voya:DiscountRateMember 2016-01-01 2016-12-31 0001535929 voya:DemographicDataandotherMember 2018-01-01 2018-12-31 0001535929 voya:AssetReturnsMember 2017-01-01 2017-12-31 0001535929 voya:DemographicDataandotherMember 2016-01-01 2016-12-31 0001535929 voya:BaillieGiffordFundsMember voya:InternationalCommingledFundsMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 voya:PatheonUsaMember us-gaap:PrivateEquityFundsDomesticMember us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 voya:UbsTrumbullPropertyFundMember us-gaap:RealEstateMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 voya:UbsTrumbullPropertyFundMember us-gaap:RealEstateMember us-gaap:PensionPlansDefinedBenefitMember 2017-01-01 2017-12-31 0001535929 us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2018-12-31 0001535929 voya:EquitySecuritiesLimitedPartnershipsMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 voya:MagnitudeInstitutionalLtdMember voya:OtherInvestmentsLimitedPartnershipsMember us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 voya:PatheonEuropeMember us-gaap:PrivateEquityFundsForeignMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2018-01-01 2018-12-31 0001535929 voya:PatheonEuropeMember us-gaap:PrivateEquityFundsForeignMember us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 voya:PatheonUsaMember us-gaap:PrivateEquityFundsDomesticMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 voya:UbsTrumbullPropertyFundMember us-gaap:RealEstateMember us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 voya:BaillieGiffordFundsMember voya:InternationalCommingledFundsMember us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 voya:InternationalCommingledFundsMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2017-01-01 2017-12-31 0001535929 us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2016-01-01 2016-12-31 0001535929 voya:InternationalCommingledFundsMember us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 voya:UbsTrumbullPropertyFundMember us-gaap:RealEstateMember us-gaap:PensionPlansDefinedBenefitMember 2018-01-01 2018-12-31 0001535929 us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 voya:EquitySecuritiesLimitedPartnershipsMember us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 voya:SilchesterMember voya:InternationalCommingledFundsMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 voya:MagnitudeInstitutionalLtdMember voya:OtherInvestmentsLimitedPartnershipsMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:NonqualifiedPlanMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 voya:SilchesterMember voya:InternationalCommingledFundsMember us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:ForeignCorporateDebtSecuritiesMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:USGovernmentAgenciesDebtSecuritiesMember us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 voya:OtherInvestmentsLimitedPartnershipsMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 voya:SmallmidCapDomesticMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 voya:OtherInvestmentsLimitedPartnershipsMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:ShortTermInvestmentsMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:ShortTermInvestmentsMember us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 voya:SmallmidCapDomesticMember us-gaap:FairValueInputsLevel2Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:RealEstateMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:PrivateEquityFundsMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 voya:LargeCapDomesticMember us-gaap:FairValueInputsLevel2Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 voya:OtherInvestmentsLimitedPartnershipsMember us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:ShortTermInvestmentsMember us-gaap:FairValueInputsLevel2Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:RealEstateMember us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:ResidentialMortgageBackedSecuritiesMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 voya:SmallmidCapDomesticMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:EquitySecuritiesMember us-gaap:FairValueInputsLevel2Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:ShortTermInvestmentsMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:ResidentialMortgageBackedSecuritiesMember us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:USGovernmentAgenciesDebtSecuritiesMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:EquitySecuritiesMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:ResidentialMortgageBackedSecuritiesMember us-gaap:FairValueInputsLevel2Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:DebtSecuritiesMember us-gaap:FairValueInputsLevel2Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:DebtSecuritiesMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:DerivativeMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:CashAndCashEquivalentsMember us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:ForeignCorporateDebtSecuritiesMember us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 voya:LargeCapDomesticMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 voya:LargeCapDomesticMember us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 voya:OtherInvestmentsLimitedPartnershipsMember us-gaap:FairValueInputsLevel2Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:RealEstateMember us-gaap:FairValueInputsLevel2Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:PrivateEquityFundsMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 voya:UsCorporateStateAndMunicipalDebtSecuritiesMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:OtherInvestmentsMember us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:CashAndCashEquivalentsMember us-gaap:FairValueInputsLevel2Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 voya:UsCorporateStateAndMunicipalDebtSecuritiesMember us-gaap:FairValueInputsLevel2Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:CashAndCashEquivalentsMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 voya:SmallmidCapDomesticMember us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:DerivativeMember us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:DerivativeMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:EquitySecuritiesMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:OtherInvestmentsMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:PrivateEquityFundsMember us-gaap:FairValueInputsLevel2Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:USGovernmentAgenciesDebtSecuritiesMember us-gaap:FairValueInputsLevel2Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:ForeignCorporateDebtSecuritiesMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:OtherInvestmentsMember us-gaap:FairValueInputsLevel2Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 voya:InternationalCommingledFundsMember us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 voya:InternationalCommingledFundsMember us-gaap:FairValueInputsLevel2Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:ForeignCorporateDebtSecuritiesMember us-gaap:FairValueInputsLevel2Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:OtherInvestmentsMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 voya:LargeCapDomesticMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 voya:UsCorporateStateAndMunicipalDebtSecuritiesMember us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:DebtSecuritiesMember us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:PrivateEquityFundsMember us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 voya:UsCorporateStateAndMunicipalDebtSecuritiesMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:CashAndCashEquivalentsMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 voya:InternationalCommingledFundsMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:ResidentialMortgageBackedSecuritiesMember us-gaap:FairValueInputsLevel3Member 2018-12-31 0001535929 us-gaap:FairValueInputsLevel2Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:USGovernmentAgenciesDebtSecuritiesMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:RealEstateMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:EquitySecuritiesMember us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:DebtSecuritiesMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:DerivativeMember us-gaap:FairValueInputsLevel2Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:PensionPlansDefinedBenefitMember 2017-01-01 2017-12-31 0001535929 us-gaap:PensionPlansDefinedBenefitMember 2018-01-01 2018-12-31 0001535929 us-gaap:PensionPlansDefinedBenefitMember 2016-12-31 0001535929 us-gaap:PensionPlansDefinedBenefitMember 2016-01-01 2016-12-31 0001535929 us-gaap:ForeignCorporateDebtSecuritiesMember us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 voya:SmallmidCapDomesticMember us-gaap:FairValueInputsLevel2Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:EquitySecuritiesMember us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:OtherInvestmentsMember us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 voya:UsCorporateStateAndMunicipalDebtSecuritiesMember us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:CashAndCashEquivalentsMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:DebtSecuritiesMember us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:ResidentialMortgageBackedSecuritiesMember us-gaap:FairValueInputsLevel2Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:ForeignCorporateDebtSecuritiesMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:DebtSecuritiesMember us-gaap:FairValueInputsLevel2Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:ShortTermInvestmentsMember us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:ResidentialMortgageBackedSecuritiesMember us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:OtherInvestmentsMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:PrivateEquityFundsMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:PrivateEquityFundsMember us-gaap:FairValueInputsLevel2Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:OtherInvestmentsMember us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:ShortTermInvestmentsMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:PrivateEquityFundsMember us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:OtherInvestmentsMember us-gaap:FairValueInputsLevel2Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 voya:SmallmidCapDomesticMember us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 voya:UsCorporateStateAndMunicipalDebtSecuritiesMember us-gaap:FairValueInputsLevel2Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:RealEstateMember us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:ResidentialMortgageBackedSecuritiesMember us-gaap:FairValueInputsLevel3Member 2017-12-31 0001535929 voya:OtherInvestmentsLimitedPartnershipsMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:CashAndCashEquivalentsMember us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 voya:InternationalCommingledFundsMember us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 voya:LargeCapDomesticMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 voya:OtherInvestmentsLimitedPartnershipsMember us-gaap:FairValueInputsLevel2Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 voya:InternationalCommingledFundsMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 voya:UsCorporateStateAndMunicipalDebtSecuritiesMember us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:DebtSecuritiesMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:DerivativeMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:DerivativeMember us-gaap:FairValueInputsLevel2Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:ResidentialMortgageBackedSecuritiesMember us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:EquitySecuritiesMember us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:EquitySecuritiesMember us-gaap:FairValueInputsLevel2Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:DebtSecuritiesMember us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:DerivativeMember us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 voya:LargeCapDomesticMember us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:RealEstateMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:CashAndCashEquivalentsMember us-gaap:FairValueInputsLevel2Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:USGovernmentAgenciesDebtSecuritiesMember us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 voya:SmallmidCapDomesticMember us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:ShortTermInvestmentsMember us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:PrivateEquityFundsMember us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:ForeignCorporateDebtSecuritiesMember us-gaap:FairValueInputsLevel2Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:USGovernmentAgenciesDebtSecuritiesMember us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel2Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:RealEstateMember us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:EquitySecuritiesMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:DerivativeMember us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 voya:LargeCapDomesticMember us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:ShortTermInvestmentsMember us-gaap:FairValueInputsLevel2Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 voya:OtherInvestmentsLimitedPartnershipsMember us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 voya:SmallmidCapDomesticMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:ConsolidatedEntitiesMember 2018-01-01 2018-12-31 0001535929 voya:UsCorporateStateAndMunicipalDebtSecuritiesMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:ForeignCorporateDebtSecuritiesMember us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 voya:LargeCapDomesticMember us-gaap:FairValueInputsLevel2Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:USGovernmentAgenciesDebtSecuritiesMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:USGovernmentAgenciesDebtSecuritiesMember us-gaap:FairValueInputsLevel2Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:RealEstateMember us-gaap:FairValueInputsLevel2Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 voya:InternationalCommingledFundsMember us-gaap:FairValueInputsLevel2Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 voya:OtherInvestmentsLimitedPartnershipsMember us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:CashAndCashEquivalentsMember us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 voya:OtherEquitySecuritiesMember us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:USTreasurySecuritiesMember us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0001535929 us-gaap:HedgeFundsMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 voya:OtherEquitySecuritiesMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0001535929 us-gaap:USTreasurySecuritiesMember us-gaap:Pensi