3.21.1 html 33 156 1 true 16 0 false 2 false false R1.htm 000000 - Document - Document and Entity Information {Elements} Sheet http://www.voyainvestments.com/role/DocumentDocumentandEntityInformationElements Document and Entity Information 1 false false R2.htm 000011 - Document - Risk/Return Summary {Unlabeled} - Voya MidCap Opportunities Portfolio Sheet http://www.voyainvestments.com/role/DocumentRiskReturnSummaryUnlabeledVoyaMidCapOpportunitiesPortfolio Risk/Return Summary- Voya MidCap Opportunities Portfolio 2 false false R3.htm 000013 - Schedule - Annual Fund Operating Expenses Sheet http://www.voyainvestments.com/role/ScheduleAnnualFundOperatingExpenses000013 Annual Fund Operating Expenses 3 false false R4.htm 000014 - Schedule - Expense Example {Transposed} Sheet http://www.voyainvestments.com/role/ScheduleExpenseExampleTransposed000014 Expense Example 4 false false R5.htm 000016 - Schedule - Annual Total Returns [BarChart] Sheet http://www.voyainvestments.com/role/ScheduleAnnualTotalReturnsBarChart000016 Annual Total Returns [BarChart] 5 false false R6.htm 000017 - Schedule - Average Annual Total Returns {Transposed} Sheet http://www.voyainvestments.com/role/ScheduleAverageAnnualTotalReturnsTransposed000017 Average Annual Total Returns 6 false false R7.htm 000019 - Disclosure - Risk/Return Detail Data {Elements} - Voya MidCap Opportunities Portfolio Sheet http://www.voyainvestments.com/role/DisclosureRiskReturnDetailDataElementsVoyaMidCapOpportunitiesPortfolio Risk/Return Detail Data- Voya MidCap Opportunities Portfolio 7 false false R8.htm 000021 - Document - Risk/Return Summary {Unlabeled} - Voya SmallCap Opportunities Portfolio Sheet http://www.voyainvestments.com/role/DocumentRiskReturnSummaryUnlabeledVoyaSmallCapOpportunitiesPortfolio Risk/Return Summary- Voya SmallCap Opportunities Portfolio 8 false false R9.htm 000023 - Schedule - Annual Fund Operating Expenses Sheet http://www.voyainvestments.com/role/ScheduleAnnualFundOperatingExpenses000023 Annual Fund Operating Expenses 9 false false R10.htm 000024 - Schedule - Expense Example {Transposed} Sheet http://www.voyainvestments.com/role/ScheduleExpenseExampleTransposed000024 Expense Example 10 false false R11.htm 000026 - Schedule - Annual Total Returns [BarChart] Sheet http://www.voyainvestments.com/role/ScheduleAnnualTotalReturnsBarChart000026 Annual Total Returns [BarChart] 11 false false R12.htm 000027 - Schedule - Average Annual Total Returns {Transposed} Sheet http://www.voyainvestments.com/role/ScheduleAverageAnnualTotalReturnsTransposed000027 Average Annual Total Returns 12 false false R13.htm 000029 - Disclosure - Risk/Return Detail Data {Elements} - Voya SmallCap Opportunities Portfolio Sheet http://www.voyainvestments.com/role/DisclosureRiskReturnDetailDataElementsVoyaSmallCapOpportunitiesPortfolio Risk/Return Detail Data- Voya SmallCap Opportunities Portfolio 13 false false R14.htm 040000 - Disclosure - Risk/Return Detail Data {Elements} Sheet http://xbrl.sec.gov/rr/role/RiskReturnDetailData Risk/Return Detail Data 14 false false All Reports Book All Reports voya-20210427.htm f8613d10.htm f8613d11.htm f8613d12.htm f8613d13.htm f8613d2.htm f8613d3.htm f8613d4.htm f8613d5.htm f8613d6.htm f8613d8.htm f8613d9.htm voya-20210427.xsd voya-20210427_cal.xml voya-20210427_def.xml voya-20210427_lab.xml voya-20210427_pre.xml img111f203e1.gif img7ec7ae722.gif imgf3e451063.gif vez07adv.jpg vez16adv.jpg http://xbrl.sec.gov/dei/2020-01-31 http://xbrl.sec.gov/rr/2018-01-31 true true