<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.26.1</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>860</ContextCount>
  <ElementCount>600</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>202</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>10</UnitCount>
  <MyReports>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>0000001 - Document - Document and Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/DocumentandEntityInformation</Role>
      <ShortName>Document and Entity Information</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>9952151 - Statement - Condensed Consolidated Balance Sheets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/CondensedConsolidatedBalanceSheets</Role>
      <ShortName>Condensed Consolidated Balance Sheets</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>9952152 - Statement - Condensed Consolidated Balance Sheets (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/CondensedConsolidatedBalanceSheetsParenthetical</Role>
      <ShortName>Condensed Consolidated Balance Sheets (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>9952153 - Statement - Condensed Consolidated Statements of Operations (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/CondensedConsolidatedStatementsofOperationsUnaudited</Role>
      <ShortName>Condensed Consolidated Statements of Operations (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>9952154 - Statement - Condensed Consolidated Statements of Comprehensive Income (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/CondensedConsolidatedStatementsofComprehensiveIncomeUnaudited</Role>
      <ShortName>Condensed Consolidated Statements of Comprehensive Income (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>9952155 - Statement - Condensed Consolidated Statements of Changes in Shareholders' Equity (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/CondensedConsolidatedStatementsofChangesinShareholdersEquityUnaudited</Role>
      <ShortName>Condensed Consolidated Statements of Changes in Shareholders' Equity (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>9952156 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/CondensedConsolidatedStatementsofCashFlowsUnaudited</Role>
      <ShortName>Condensed Consolidated Statements of Cash Flows (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>9952157 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited) (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/CondensedConsolidatedStatementsofCashFlowsUnauditedParenthetical</Role>
      <ShortName>Condensed Consolidated Statements of Cash Flows (Unaudited) (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>9952158 - Disclosure - Business, Basis of Presentation and Significant Accounting Policies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/BusinessBasisofPresentationandSignificantAccountingPolicies</Role>
      <ShortName>Business, Basis of Presentation and Significant Accounting Policies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>9952159 - Disclosure - Investments (excluding Consolidated Investment Entities)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/InvestmentsexcludingConsolidatedInvestmentEntities</Role>
      <ShortName>Investments (excluding Consolidated Investment Entities)</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>9952160 - Disclosure - Derivative Financial Instruments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/DerivativeFinancialInstruments</Role>
      <ShortName>Derivative Financial Instruments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>9952161 - Disclosure - Fair Value Measurements (excluding Consolidated Investment Entities)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/FairValueMeasurementsexcludingConsolidatedInvestmentEntities</Role>
      <ShortName>Fair Value Measurements (excluding Consolidated Investment Entities)</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>9952162 - Disclosure - Deferred Policy Acquisition Costs and Value of Business Acquired</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/DeferredPolicyAcquisitionCostsandValueofBusinessAcquired</Role>
      <ShortName>Deferred Policy Acquisition Costs and Value of Business Acquired</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>9952163 - Disclosure - Reserves for Future Policy Benefits and Contract Owner Account Balances</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/ReservesforFuturePolicyBenefitsandContractOwnerAccountBalances</Role>
      <ShortName>Reserves for Future Policy Benefits and Contract Owner Account Balances</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>9952164 - Disclosure - Reinsurance</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/Reinsurance</Role>
      <ShortName>Reinsurance</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>9952165 - Disclosure - Separate Accounts</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/SeparateAccounts</Role>
      <ShortName>Separate Accounts</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>9952166 - Disclosure - Segments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/Segments</Role>
      <ShortName>Segments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>9952167 - Disclosure - Goodwill and Other Intangible Assets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/GoodwillandOtherIntangibleAssets</Role>
      <ShortName>Goodwill and Other Intangible Assets</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>9952168 - Disclosure - Share-based Incentive Compensation Plans</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/SharebasedIncentiveCompensationPlans</Role>
      <ShortName>Share-based Incentive Compensation Plans</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>9952169 - Disclosure - Shareholders' Equity</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/ShareholdersEquity</Role>
      <ShortName>Shareholders' Equity</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>9952170 - Disclosure - Earnings per Common Share</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/EarningsperCommonShare</Role>
      <ShortName>Earnings per Common Share</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>9952171 - Disclosure - Accumulated Other Comprehensive Income (Loss)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/AccumulatedOtherComprehensiveIncomeLoss</Role>
      <ShortName>Accumulated Other Comprehensive Income (Loss)</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>9952172 - Disclosure - Revenue from Contract with Customers</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/RevenuefromContractwithCustomers</Role>
      <ShortName>Revenue from Contract with Customers</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>9952173 - Disclosure - Income Taxes</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/IncomeTaxes</Role>
      <ShortName>Income Taxes</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>24</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>9952174 - Disclosure - Financing Agreements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/FinancingAgreements</Role>
      <ShortName>Financing Agreements</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>25</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>9952175 - Disclosure - Commitments and Contingencies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/CommitmentsandContingencies</Role>
      <ShortName>Commitments and Contingencies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>26</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>9952176 - Disclosure - Consolidated and Nonconsolidated Investment Entities</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/ConsolidatedandNonconsolidatedInvestmentEntities</Role>
      <ShortName>Consolidated and Nonconsolidated Investment Entities</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>27</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>995445 - Disclosure - Insider Trading Arrangements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements</Role>
      <ShortName>Insider Trading Arrangements</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>28</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>9955511 - Disclosure - Business, Basis of Presentation and Significant Accounting Policies (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/BusinessBasisofPresentationandSignificantAccountingPoliciesPolicies</Role>
      <ShortName>Business, Basis of Presentation and Significant Accounting Policies (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <ParentRole>http://www.voya.com/role/BusinessBasisofPresentationandSignificantAccountingPolicies</ParentRole>
      <Position>29</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>9955512 - Disclosure - Investments (excluding Consolidated Investment Entities) (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/InvestmentsexcludingConsolidatedInvestmentEntitiesTables</Role>
      <ShortName>Investments (excluding Consolidated Investment Entities) (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.voya.com/role/InvestmentsexcludingConsolidatedInvestmentEntities</ParentRole>
      <Position>30</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>9955513 - Disclosure - Derivative Financial Instruments (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/DerivativeFinancialInstrumentsTables</Role>
      <ShortName>Derivative Financial Instruments (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.voya.com/role/DerivativeFinancialInstruments</ParentRole>
      <Position>31</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>9955514 - Disclosure - Fair Value Measurements (excluding Consolidated Investment Entities) (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/FairValueMeasurementsexcludingConsolidatedInvestmentEntitiesTables</Role>
      <ShortName>Fair Value Measurements (excluding Consolidated Investment Entities) (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.voya.com/role/FairValueMeasurementsexcludingConsolidatedInvestmentEntities</ParentRole>
      <Position>32</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>9955515 - Disclosure - Deferred Policy Acquisition Costs and Value of Business Acquired (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/DeferredPolicyAcquisitionCostsandValueofBusinessAcquiredTables</Role>
      <ShortName>Deferred Policy Acquisition Costs and Value of Business Acquired (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.voya.com/role/DeferredPolicyAcquisitionCostsandValueofBusinessAcquired</ParentRole>
      <Position>33</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>9955516 - Disclosure - Reserves for Future Policy Benefits and Contract Owner Account Balances (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/ReservesforFuturePolicyBenefitsandContractOwnerAccountBalancesTables</Role>
      <ShortName>Reserves for Future Policy Benefits and Contract Owner Account Balances (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.voya.com/role/ReservesforFuturePolicyBenefitsandContractOwnerAccountBalances</ParentRole>
      <Position>34</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>9955517 - Disclosure - Reinsurance (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/ReinsuranceTables</Role>
      <ShortName>Reinsurance (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.voya.com/role/Reinsurance</ParentRole>
      <Position>35</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>9955518 - Disclosure - Separate Accounts (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/SeparateAccountsTables</Role>
      <ShortName>Separate Accounts (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.voya.com/role/SeparateAccounts</ParentRole>
      <Position>36</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>9955519 - Disclosure - Segments (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/SegmentsTables</Role>
      <ShortName>Segments (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.voya.com/role/Segments</ParentRole>
      <Position>37</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>9955520 - Disclosure - Goodwill and Other Intangible Assets (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/GoodwillandOtherIntangibleAssetsTables</Role>
      <ShortName>Goodwill and Other Intangible Assets (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.voya.com/role/GoodwillandOtherIntangibleAssets</ParentRole>
      <Position>38</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>9955521 - Disclosure - Share-based Incentive Compensation Plans (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/SharebasedIncentiveCompensationPlansTables</Role>
      <ShortName>Share-based Incentive Compensation Plans (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.voya.com/role/SharebasedIncentiveCompensationPlans</ParentRole>
      <Position>39</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>9955522 - Disclosure - Shareholders' Equity (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/ShareholdersEquityTables</Role>
      <ShortName>Shareholders' Equity (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.voya.com/role/ShareholdersEquity</ParentRole>
      <Position>40</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>9955523 - Disclosure - Earnings per Common Share (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/EarningsperCommonShareTables</Role>
      <ShortName>Earnings per Common Share (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.voya.com/role/EarningsperCommonShare</ParentRole>
      <Position>41</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>9955524 - Disclosure - Accumulated Other Comprehensive Income (Loss) (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/AccumulatedOtherComprehensiveIncomeLossTables</Role>
      <ShortName>Accumulated Other Comprehensive Income (Loss) (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.voya.com/role/AccumulatedOtherComprehensiveIncomeLoss</ParentRole>
      <Position>42</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>9955525 - Disclosure - Revenue from Contracts with Customers (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/RevenuefromContractswithCustomersTables</Role>
      <ShortName>Revenue from Contracts with Customers (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <Position>43</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>9955526 - Disclosure - Financing Agreements (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/FinancingAgreementsTables</Role>
      <ShortName>Financing Agreements (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.voya.com/role/FinancingAgreements</ParentRole>
      <Position>44</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>9955527 - Disclosure - Commitments and Contingencies (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/CommitmentsandContingenciesTables</Role>
      <ShortName>Commitments and Contingencies (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.voya.com/role/CommitmentsandContingencies</ParentRole>
      <Position>45</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>9955528 - Disclosure - Consolidated and Nonconsolidated Investment Entities (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/ConsolidatedandNonconsolidatedInvestmentEntitiesTables</Role>
      <ShortName>Consolidated and Nonconsolidated Investment Entities (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.voya.com/role/ConsolidatedandNonconsolidatedInvestmentEntities</ParentRole>
      <Position>46</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>9955529 - Disclosure - Business, Basis of Presentation and Significant Accounting Policies (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/BusinessBasisofPresentationandSignificantAccountingPoliciesDetails</Role>
      <ShortName>Business, Basis of Presentation and Significant Accounting Policies (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.voya.com/role/BusinessBasisofPresentationandSignificantAccountingPoliciesPolicies</ParentRole>
      <Position>47</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>9955530 - Disclosure - Investments (excluding Consolidated Investment Entities) - Fixed Maturities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/InvestmentsexcludingConsolidatedInvestmentEntitiesFixedMaturitiesDetails</Role>
      <ShortName>Investments (excluding Consolidated Investment Entities) - Fixed Maturities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.voya.com/role/InvestmentsexcludingConsolidatedInvestmentEntitiesTables</ParentRole>
      <Position>48</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>9955531 - Disclosure - Investments (excluding Consolidated Investment Entities) - Debt Maturities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/InvestmentsexcludingConsolidatedInvestmentEntitiesDebtMaturitiesDetails</Role>
      <ShortName>Investments (excluding Consolidated Investment Entities) - Debt Maturities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.voya.com/role/InvestmentsexcludingConsolidatedInvestmentEntitiesTables</ParentRole>
      <Position>49</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>9955532 - Disclosure - Investments (excluding Consolidated Investment Entities) - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/InvestmentsexcludingConsolidatedInvestmentEntitiesNarrativeDetails</Role>
      <ShortName>Investments (excluding Consolidated Investment Entities) - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.voya.com/role/InvestmentsexcludingConsolidatedInvestmentEntitiesTables</ParentRole>
      <Position>50</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>9955533 - Disclosure - Investments (excluding Consolidated Investment Entities) - Repurchase Agreements and Securities Pledged (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/InvestmentsexcludingConsolidatedInvestmentEntitiesRepurchaseAgreementsandSecuritiesPledgedDetails</Role>
      <ShortName>Investments (excluding Consolidated Investment Entities) - Repurchase Agreements and Securities Pledged (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.voya.com/role/InvestmentsexcludingConsolidatedInvestmentEntitiesTables</ParentRole>
      <Position>51</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>9955534 - Disclosure - Investments (excluding Consolidated Investment Entities) - Allowance for Credit Losses on Available-for-sale Fixed Maturity Securities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/InvestmentsexcludingConsolidatedInvestmentEntitiesAllowanceforCreditLossesonAvailableforsaleFixedMaturitySecuritiesDetails</Role>
      <ShortName>Investments (excluding Consolidated Investment Entities) - Allowance for Credit Losses on Available-for-sale Fixed Maturity Securities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.voya.com/role/InvestmentsexcludingConsolidatedInvestmentEntitiesTables</ParentRole>
      <Position>52</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>9955535 - Disclosure - Investments (excluding Consolidated Investment Entities) - Unrealized Capital Losses (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/InvestmentsexcludingConsolidatedInvestmentEntitiesUnrealizedCapitalLossesDetails</Role>
      <ShortName>Investments (excluding Consolidated Investment Entities) - Unrealized Capital Losses (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.voya.com/role/InvestmentsexcludingConsolidatedInvestmentEntitiesTables</ParentRole>
      <Position>53</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>9955536 - Disclosure - Investments (excluding Consolidated Investment Entities) - Loans by Loan to Value (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/InvestmentsexcludingConsolidatedInvestmentEntitiesLoansbyLoantoValueDetails</Role>
      <ShortName>Investments (excluding Consolidated Investment Entities) - Loans by Loan to Value (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.voya.com/role/InvestmentsexcludingConsolidatedInvestmentEntitiesTables</ParentRole>
      <Position>54</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>9955537 - Disclosure - Investments (excluding Consolidated Investment Entities) - Loans by Debt Service Coverage Ratio (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/InvestmentsexcludingConsolidatedInvestmentEntitiesLoansbyDebtServiceCoverageRatioDetails</Role>
      <ShortName>Investments (excluding Consolidated Investment Entities) - Loans by Debt Service Coverage Ratio (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.voya.com/role/InvestmentsexcludingConsolidatedInvestmentEntitiesTables</ParentRole>
      <Position>55</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>9955538 - Disclosure - Investments (excluding Consolidated Investment Entities) - Loans by U.S. Region (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/InvestmentsexcludingConsolidatedInvestmentEntitiesLoansbyUSRegionDetails</Role>
      <ShortName>Investments (excluding Consolidated Investment Entities) - Loans by U.S. Region (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.voya.com/role/InvestmentsexcludingConsolidatedInvestmentEntitiesTables</ParentRole>
      <Position>56</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>9955539 - Disclosure - Investments (excluding Consolidated Investment Entities) - Loans by Property Type (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/InvestmentsexcludingConsolidatedInvestmentEntitiesLoansbyPropertyTypeDetails</Role>
      <ShortName>Investments (excluding Consolidated Investment Entities) - Loans by Property Type (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.voya.com/role/InvestmentsexcludingConsolidatedInvestmentEntitiesTables</ParentRole>
      <Position>57</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>9955540 - Disclosure - Investments (excluding Consolidated Investment Entities) - Allowance for Losses for Commercial Mortgage Loans (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/InvestmentsexcludingConsolidatedInvestmentEntitiesAllowanceforLossesforCommercialMortgageLoansDetails</Role>
      <ShortName>Investments (excluding Consolidated Investment Entities) - Allowance for Losses for Commercial Mortgage Loans (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.voya.com/role/InvestmentsexcludingConsolidatedInvestmentEntitiesTables</ParentRole>
      <Position>58</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>9955541 - Disclosure - Investments (excluding Consolidated Investment Entities) - Past Due Commercial Mortgage Loans (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/InvestmentsexcludingConsolidatedInvestmentEntitiesPastDueCommercialMortgageLoansDetails</Role>
      <ShortName>Investments (excluding Consolidated Investment Entities) - Past Due Commercial Mortgage Loans (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.voya.com/role/InvestmentsexcludingConsolidatedInvestmentEntitiesTables</ParentRole>
      <Position>59</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>9955542 - Disclosure - Investments (excluding Consolidated Investment Entities) - Net Investment Income (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/InvestmentsexcludingConsolidatedInvestmentEntitiesNetInvestmentIncomeDetails</Role>
      <ShortName>Investments (excluding Consolidated Investment Entities) - Net Investment Income (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.voya.com/role/InvestmentsexcludingConsolidatedInvestmentEntitiesTables</ParentRole>
      <Position>60</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>9955543 - Disclosure - Investments (excluding Consolidated Investment Entities) - Net Gains (Losses) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/InvestmentsexcludingConsolidatedInvestmentEntitiesNetGainsLossesDetails</Role>
      <ShortName>Investments (excluding Consolidated Investment Entities) - Net Gains (Losses) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.voya.com/role/InvestmentsexcludingConsolidatedInvestmentEntitiesTables</ParentRole>
      <Position>61</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>9955544 - Disclosure - Investments (excluding Consolidated Investment Entities) - Proceeds and Gross Gains/(Losses) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/InvestmentsexcludingConsolidatedInvestmentEntitiesProceedsandGrossGainsLossesDetails</Role>
      <ShortName>Investments (excluding Consolidated Investment Entities) - Proceeds and Gross Gains/(Losses) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.voya.com/role/InvestmentsexcludingConsolidatedInvestmentEntitiesTables</ParentRole>
      <Position>62</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R63.htm</HtmlFileName>
      <LongName>9955545 - Disclosure - Derivative Financial Instruments - Effect on Other Comprehensive Income (Loss) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/DerivativeFinancialInstrumentsEffectonOtherComprehensiveIncomeLossDetails</Role>
      <ShortName>Derivative Financial Instruments - Effect on Other Comprehensive Income (Loss) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>63</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R64.htm</HtmlFileName>
      <LongName>9955546 - Disclosure - Derivative Financial Instruments - Notional and Fair Values (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/DerivativeFinancialInstrumentsNotionalandFairValuesDetails</Role>
      <ShortName>Derivative Financial Instruments - Notional and Fair Values (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>64</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R65.htm</HtmlFileName>
      <LongName>9955547 - Disclosure - Derivative Financial Instruments - Offsetting Assets and Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/DerivativeFinancialInstrumentsOffsettingAssetsandLiabilitiesDetails</Role>
      <ShortName>Derivative Financial Instruments - Offsetting Assets and Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>65</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R66.htm</HtmlFileName>
      <LongName>9955548 - Disclosure - Derivative Financial Instruments - Effect of Qualifying Hedge Accounting (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/DerivativeFinancialInstrumentsEffectofQualifyingHedgeAccountingDetails</Role>
      <ShortName>Derivative Financial Instruments - Effect of Qualifying Hedge Accounting (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>66</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R67.htm</HtmlFileName>
      <LongName>9955549 - Disclosure - Derivative Financial Instruments - Effect of Non-Qualifying Hedge Accounting (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/DerivativeFinancialInstrumentsEffectofNonQualifyingHedgeAccountingDetails</Role>
      <ShortName>Derivative Financial Instruments - Effect of Non-Qualifying Hedge Accounting (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>67</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R68.htm</HtmlFileName>
      <LongName>9955550 - Disclosure - Derivative Financial Instruments - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/DerivativeFinancialInstrumentsNarrativeDetails</Role>
      <ShortName>Derivative Financial Instruments - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>68</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R69.htm</HtmlFileName>
      <LongName>9955551 - Disclosure - Fair Value Measurements (excluding Consolidated Investment Entities) - Fair Value Measurement (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/FairValueMeasurementsexcludingConsolidatedInvestmentEntitiesFairValueMeasurementDetails</Role>
      <ShortName>Fair Value Measurements (excluding Consolidated Investment Entities) - Fair Value Measurement (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.voya.com/role/FairValueMeasurementsexcludingConsolidatedInvestmentEntitiesTables</ParentRole>
      <Position>69</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R70.htm</HtmlFileName>
      <LongName>9955552 - Disclosure - Fair Value Measurements (excluding Consolidated Investment Entities) - Level 3 Financial Instruments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/FairValueMeasurementsexcludingConsolidatedInvestmentEntitiesLevel3FinancialInstrumentsDetails</Role>
      <ShortName>Fair Value Measurements (excluding Consolidated Investment Entities) - Level 3 Financial Instruments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.voya.com/role/FairValueMeasurementsexcludingConsolidatedInvestmentEntitiesTables</ParentRole>
      <Position>70</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R71.htm</HtmlFileName>
      <LongName>9955553 - Disclosure - Fair Value Measurements (excluding Consolidated Investment Entities) - Other Financial Instruments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/FairValueMeasurementsexcludingConsolidatedInvestmentEntitiesOtherFinancialInstrumentsDetails</Role>
      <ShortName>Fair Value Measurements (excluding Consolidated Investment Entities) - Other Financial Instruments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.voya.com/role/FairValueMeasurementsexcludingConsolidatedInvestmentEntitiesTables</ParentRole>
      <Position>71</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R72.htm</HtmlFileName>
      <LongName>9955554 - Disclosure - Deferred Policy Acquisition Costs and Value of Business Acquired - DAC and VOBA Activity (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/DeferredPolicyAcquisitionCostsandValueofBusinessAcquiredDACandVOBAActivityDetails</Role>
      <ShortName>Deferred Policy Acquisition Costs and Value of Business Acquired - DAC and VOBA Activity (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>72</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R73.htm</HtmlFileName>
      <LongName>9955555 - Disclosure - Deferred Policy Acquisition Costs and Value of Business Acquired - Reconciliation of DAC and VOBA (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/DeferredPolicyAcquisitionCostsandValueofBusinessAcquiredReconciliationofDACandVOBADetails</Role>
      <ShortName>Deferred Policy Acquisition Costs and Value of Business Acquired - Reconciliation of DAC and VOBA (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>73</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R74.htm</HtmlFileName>
      <LongName>9955556 - Disclosure - Reserves for Future Policy Benefits and Contract Owner Account Balances - Liability for Future Policy Benefits (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/ReservesforFuturePolicyBenefitsandContractOwnerAccountBalancesLiabilityforFuturePolicyBenefitsDetails</Role>
      <ShortName>Reserves for Future Policy Benefits and Contract Owner Account Balances - Liability for Future Policy Benefits (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>74</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R75.htm</HtmlFileName>
      <LongName>9955557 - Disclosure - Reserves for Future Policy Benefits and Contract Owner Account Balances - Contract Owner Account Balances (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/ReservesforFuturePolicyBenefitsandContractOwnerAccountBalancesContractOwnerAccountBalancesDetails</Role>
      <ShortName>Reserves for Future Policy Benefits and Contract Owner Account Balances - Contract Owner Account Balances (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>75</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R76.htm</HtmlFileName>
      <LongName>9955558 - Disclosure - Reserves for Future Policy Benefits and Contract Owner Account Balances - GMIR (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/ReservesforFuturePolicyBenefitsandContractOwnerAccountBalancesGMIRDetails</Role>
      <ShortName>Reserves for Future Policy Benefits and Contract Owner Account Balances - GMIR (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.voya.com/role/ReservesforFuturePolicyBenefitsandContractOwnerAccountBalancesTables</ParentRole>
      <Position>76</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R77.htm</HtmlFileName>
      <LongName>9955559 - Disclosure - Reserves for Future Policy Benefits and Contract Owner Account Balances - Rollforward of the Liability for Unpaid Claims and Claim Adjustment Expenses (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/ReservesforFuturePolicyBenefitsandContractOwnerAccountBalancesRollforwardoftheLiabilityforUnpaidClaimsandClaimAdjustmentExpensesDetails</Role>
      <ShortName>Reserves for Future Policy Benefits and Contract Owner Account Balances - Rollforward of the Liability for Unpaid Claims and Claim Adjustment Expenses (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>77</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R78.htm</HtmlFileName>
      <LongName>9955560 - Disclosure - Reinsurance - Assets and Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/ReinsuranceAssetsandLiabilitiesDetails</Role>
      <ShortName>Reinsurance - Assets and Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>78</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R79.htm</HtmlFileName>
      <LongName>9955561 - Disclosure - Reinsurance - Effect of Reinusance (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/ReinsuranceEffectofReinusanceDetails</Role>
      <ShortName>Reinsurance - Effect of Reinusance (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>79</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R80.htm</HtmlFileName>
      <LongName>9955562 - Disclosure - Reinsurance - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/ReinsuranceNarrativeDetails</Role>
      <ShortName>Reinsurance - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>80</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R81.htm</HtmlFileName>
      <LongName>9955563 - Disclosure - Separate Accounts - Separate Account Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/SeparateAccountsSeparateAccountLiabilitiesDetails</Role>
      <ShortName>Separate Accounts - Separate Account Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>81</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R82.htm</HtmlFileName>
      <LongName>9955564 - Disclosure - Separate Accounts - Separate Account Assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/SeparateAccountsSeparateAccountAssetsDetails</Role>
      <ShortName>Separate Accounts - Separate Account Assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>82</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R83.htm</HtmlFileName>
      <LongName>9955565 - Disclosure - Separate Accounts - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/SeparateAccountsNarrativeDetails</Role>
      <ShortName>Separate Accounts - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>83</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R84.htm</HtmlFileName>
      <LongName>9955566 - Disclosure - Segments - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/SegmentsNarrativeDetails</Role>
      <ShortName>Segments - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>84</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R85.htm</HtmlFileName>
      <LongName>9955567 - Disclosure - Segments - Operating Earnings Before Income Taxes (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/SegmentsOperatingEarningsBeforeIncomeTaxesDetails</Role>
      <ShortName>Segments - Operating Earnings Before Income Taxes (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>85</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R86.htm</HtmlFileName>
      <LongName>9955568 - Disclosure - Segments - Operating Revenues (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/SegmentsOperatingRevenuesDetails</Role>
      <ShortName>Segments - Operating Revenues (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>86</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R87.htm</HtmlFileName>
      <LongName>9955569 - Disclosure - Segments - Total Assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/SegmentsTotalAssetsDetails</Role>
      <ShortName>Segments - Total Assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>87</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R88.htm</HtmlFileName>
      <LongName>9955570 - Disclosure - Goodwill and Other Intangible Assets - Goodwill (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/GoodwillandOtherIntangibleAssetsGoodwillDetails</Role>
      <ShortName>Goodwill and Other Intangible Assets - Goodwill (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>88</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R89.htm</HtmlFileName>
      <LongName>9955571 - Disclosure - Goodwill and Other Intangible Assets - Other Intangible Assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/GoodwillandOtherIntangibleAssetsOtherIntangibleAssetsDetails</Role>
      <ShortName>Goodwill and Other Intangible Assets - Other Intangible Assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>89</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R90.htm</HtmlFileName>
      <LongName>9955572 - Disclosure - Share-based Incentive Compensation Plans - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/SharebasedIncentiveCompensationPlansNarrativeDetails</Role>
      <ShortName>Share-based Incentive Compensation Plans - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>90</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R91.htm</HtmlFileName>
      <LongName>9955573 - Disclosure - Share-based Incentive Compensation Plans - Compensation Cost (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/SharebasedIncentiveCompensationPlansCompensationCostDetails</Role>
      <ShortName>Share-based Incentive Compensation Plans - Compensation Cost (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>91</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R92.htm</HtmlFileName>
      <LongName>9955574 - Disclosure - Share-based Incentive Compensation Plans - Awards Outstanding (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/SharebasedIncentiveCompensationPlansAwardsOutstandingDetails</Role>
      <ShortName>Share-based Incentive Compensation Plans - Awards Outstanding (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>92</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R93.htm</HtmlFileName>
      <LongName>9955575 - Disclosure - Shareholders' Equity - Common Stock Rollforward (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/ShareholdersEquityCommonStockRollforwardDetails</Role>
      <ShortName>Shareholders' Equity - Common Stock Rollforward (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>93</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R94.htm</HtmlFileName>
      <LongName>9955576 - Disclosure - Shareholders' Equity - Common stock Dividends Declared (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/ShareholdersEquityCommonstockDividendsDeclaredDetails</Role>
      <ShortName>Shareholders' Equity - Common stock Dividends Declared (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>94</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R95.htm</HtmlFileName>
      <LongName>9955577 - Disclosure - Shareholders' Equity - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/ShareholdersEquityNarrativeDetails</Role>
      <ShortName>Shareholders' Equity - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>95</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R96.htm</HtmlFileName>
      <LongName>9955578 - Disclosure - Shareholders' Equity - Share Repurchases through Share Repurchase Agreements with Third Party Financial Institutions (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/ShareholdersEquityShareRepurchasesthroughShareRepurchaseAgreementswithThirdPartyFinancialInstitutionsDetails</Role>
      <ShortName>Shareholders' Equity - Share Repurchases through Share Repurchase Agreements with Third Party Financial Institutions (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>96</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R97.htm</HtmlFileName>
      <LongName>9955579 - Disclosure - Shareholders' Equity - Repurchases Pursuant to 10b5-1 Plans and Open Market Repurchases (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/ShareholdersEquityRepurchasesPursuantto10b51PlansandOpenMarketRepurchasesDetails</Role>
      <ShortName>Shareholders' Equity - Repurchases Pursuant to 10b5-1 Plans and Open Market Repurchases (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>97</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R98.htm</HtmlFileName>
      <LongName>9955580 - Disclosure - Shareholders' Equity - Preferred Stock (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/ShareholdersEquityPreferredStockDetails</Role>
      <ShortName>Shareholders' Equity - Preferred Stock (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>98</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R99.htm</HtmlFileName>
      <LongName>9955581 - Disclosure - Earnings per Common Share (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/EarningsperCommonShareDetails</Role>
      <ShortName>Earnings per Common Share (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.voya.com/role/EarningsperCommonShareTables</ParentRole>
      <Position>99</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R100.htm</HtmlFileName>
      <LongName>9955582 - Disclosure - Accumulated Other Comprehensive Income (Loss) - Components of AOCI (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/AccumulatedOtherComprehensiveIncomeLossComponentsofAOCIDetails</Role>
      <ShortName>Accumulated Other Comprehensive Income (Loss) - Components of AOCI (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.voya.com/role/AccumulatedOtherComprehensiveIncomeLossTables</ParentRole>
      <Position>100</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R101.htm</HtmlFileName>
      <LongName>9955583 - Disclosure - Accumulated Other Comprehensive Income (Loss) - Changes in AOCI, including Reclassification Adjustments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/AccumulatedOtherComprehensiveIncomeLossChangesinAOCIincludingReclassificationAdjustmentsDetails</Role>
      <ShortName>Accumulated Other Comprehensive Income (Loss) - Changes in AOCI, including Reclassification Adjustments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.voya.com/role/AccumulatedOtherComprehensiveIncomeLossTables</ParentRole>
      <Position>101</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R102.htm</HtmlFileName>
      <LongName>9955584 - Disclosure - Revenue from Contracts with Customers (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/RevenuefromContractswithCustomersDetails</Role>
      <ShortName>Revenue from Contracts with Customers (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.voya.com/role/RevenuefromContractswithCustomersTables</ParentRole>
      <Position>102</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R103.htm</HtmlFileName>
      <LongName>9955585 - Disclosure - Revenue from Contract with Customer - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/RevenuefromContractwithCustomerNarrativeDetails</Role>
      <ShortName>Revenue from Contract with Customer - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>103</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R104.htm</HtmlFileName>
      <LongName>9955586 - Disclosure - Income Taxes - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/IncomeTaxesNarrativeDetails</Role>
      <ShortName>Income Taxes - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>104</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R105.htm</HtmlFileName>
      <LongName>9955587 - Disclosure - Financing Agreements - Schedule of Long-term Debt (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/FinancingAgreementsScheduleofLongtermDebtDetails</Role>
      <ShortName>Financing Agreements - Schedule of Long-term Debt (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>105</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R106.htm</HtmlFileName>
      <LongName>9955588 - Disclosure - Financing Agreements - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/FinancingAgreementsNarrativeDetails</Role>
      <ShortName>Financing Agreements - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>106</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R107.htm</HtmlFileName>
      <LongName>9955589 - Disclosure - Commitments and Contingencies - Restricted Assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/CommitmentsandContingenciesRestrictedAssetsDetails</Role>
      <ShortName>Commitments and Contingencies - Restricted Assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>107</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R108.htm</HtmlFileName>
      <LongName>9955590 - Disclosure - Commitments and Contingencies - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/CommitmentsandContingenciesNarrativeDetails</Role>
      <ShortName>Commitments and Contingencies - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>108</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R109.htm</HtmlFileName>
      <LongName>9955591 - Disclosure - Consolidated and Nonconsolidated Investment Entities - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/ConsolidatedandNonconsolidatedInvestmentEntitiesNarrativeDetails</Role>
      <ShortName>Consolidated and Nonconsolidated Investment Entities - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.voya.com/role/ConsolidatedandNonconsolidatedInvestmentEntitiesTables</ParentRole>
      <Position>109</Position>
    </Report>
    <Report instance="voya-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R110.htm</HtmlFileName>
      <LongName>9955592 - Disclosure - Consolidated and Nonconsolidated Investment Entities - Fair Value Hierarchy (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.voya.com/role/ConsolidatedandNonconsolidatedInvestmentEntitiesFairValueHierarchyDetails</Role>
      <ShortName>Consolidated and Nonconsolidated Investment Entities - Fair Value Hierarchy (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>110</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File doctype="10-Q" isDefinitelyFs="true" isUsgaap="true" original="voya-20260331.htm">voya-20260331.htm</File>
    <File>voya-20260331.xsd</File>
    <File>voya-20260331_cal.xml</File>
    <File>voya-20260331_def.xml</File>
    <File>voya-20260331_lab.xml</File>
    <File>voya-20260331_pre.xml</File>
  </InputFiles>
  <SupplementalFiles>
    <File>voya-20260331_g1.jpg</File>
  </SupplementalFiles>
  <BaseTaxonomies>
    <BaseTaxonomy items="3093">http://fasb.org/us-gaap/2026</BaseTaxonomy>
    <BaseTaxonomy items="32">http://xbrl.sec.gov/dei/2026</BaseTaxonomy>
    <BaseTaxonomy items="4">http://xbrl.sec.gov/ecd/2026</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
