Label	Element	Value
Risk Return Abstract	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	Voya MUTUAL FUNDS
Prospectus Date	rr_ProspectusDate	Feb. 28, 2023
Class A I R6 and T Shares | Voya International High Dividend Low Volatility Fund
Risk Return Abstract	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	<span style="color:#000000;font-family:Arial;font-size:16.74pt;">Voya International High Dividend Low Volatility Fund</span>
Objective [Heading]	rr_ObjectiveHeading	<span style="color:#000000;font-family:Arial;font-size:11.16pt;font-weight:bold;text-transform:uppercase;">Investment Objective</span>
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Fund seeks maximum total return.
Expense [Heading]	rr_ExpenseHeading	<span style="color:#000000;font-family:Arial;font-size:11.16pt;font-weight:bold;text-transform:uppercase;">Fees and Expenses of the Fund</span>
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	These tables describe the fees and expenses that you may pay if you buy, hold, and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Voya mutual funds. More information about these and other discounts is available from your financial intermediary and in the discussion in the Sales Charges section of the Prospectus (page 84), in Appendix A to the Prospectus, or the Purchase, Exchange, and Redemption of Shares section of the Statement of Additional Information (page 104).
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	<span style="color:#FF8000;font-family:Arial;font-size:8.928pt;font-weight:bold;">Shareholder Fees</span><span style="color:#000000;font-family:Arial;font-size:7.44pt;margin-left:0%;">Fees paid directly from your investment</span>
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	<span style="color:#FF8000;font-family:Arial;font-size:8.928pt;font-weight:bold;">Annual Fund Operating Expenses</span><span style="color:#000000;font-family:Arial;font-size:7.44pt;margin-left:0%;">Expenses you pay each year as a % of the value of your investment</span>
Fee Waiver or Reimbursement over Assets, Date of Termination	rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination	<span style="font-family:Arial Narrow;font-size:8pt;">March 1, 2024</span>
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	<span style="color:#FF8000;font-family:Arial;font-size:8.928pt;font-weight:bold;">Portfolio Turnover</span>
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in Annual Fund Operating Expenses or in the Expense Example, affect the Fund's performance.During the most recent fiscal year, the Fund's portfolio turnover rate was 72% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	72.00%
Expenses Deferred Charges [Text Block]	rr_ExpensesDeferredChargesTextBlock	A contingent deferred sales charge of 1.00% is assessed on certain redemptions of Class A shares made within 18 months after purchase where no initial sales charge was paid at the time of purchase as part of an investment of $1,000,000 or more.
Expense Breakpoint Discounts [Text]	rr_ExpenseBreakpointDiscounts	<span style="color:#000000;font-family:Arial;font-size:9.30pt;"> You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $</span><span style="color:#000000;font-family:Arial;font-size:9.30pt;">50,000</span><span style="color:#000000;font-family:Arial;font-size:9.30pt;"> in Voya mutual funds.</span>
Expense Breakpoint, Minimum Investment Required [Amount]	rr_ExpenseBreakpointMinimumInvestmentRequiredAmount	$ 50,000
Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text]	rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees	<span style="color:#000000;font-family:Arial Narrow;font-size:8pt;">Total Annual Fund Operating Expenses shown may be higher than the Fund’s ratio of expenses to average net assets shown in the Financial Highlights, which reflect the operating expenses of the Fund and do not include Acquired Fund Fees and Expenses.</span>
Expense Example [Heading]	rr_ExpenseExampleHeading	<span style="color:#FF8000;font-family:Arial;font-size:8.928pt;font-weight:bold;">Expense Example</span>
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	This Example is intended to help you compare the cost of investing in shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated. The Example shows costs if you sold (redeemed) your shares at the end of the period or continued to hold them. The Example also assumes that your investment had a 5% return each year and that the Fund's operating expenses remain the same. The Example reflects applicable expense limitation agreements and/or waivers in effect, if any, for the one-year period and the first year of the three-, five-, and ten-year periods. Although your actual costs may be higher or lower, based on these assumptions your costs would be:The Example does not reflect sales charges (loads) on reinvested dividends (and other distributions). If these sales charges (loads) were included, your costs would be higher.
Strategy [Heading]	rr_StrategyHeading	<span style="color:#000000;font-family:Arial;font-size:11.16pt;font-weight:bold;text-transform:uppercase;">Principal Investment Strategies</span>
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The Fund invests primarily in equity securities included in the MSCI EAFE® Value Index (the “Index”). Under normal market conditions, the Fund invests at least 65% of its total assets in equity securities of issuers in a number of different countries other than the U.S.The sub-adviser (the “Sub-Adviser”) seeks to maximize total return to the extent consistent with maintaining lower volatility than the Index. Volatility generally measures how much a fund’s returns have varied over a specified time frame.The Fund may invest in derivative instruments including, but not limited to, index futures. The Fund typically uses derivatives as a substitute for purchasing securities included in the Index or for the purpose of maintaining equity market exposure on its cash balance.The Fund may also invest in real estate-related securities, including real estate investment trusts (“REITs”).The Fund may invest in other investment companies, including exchange-traded funds (“ETFs”), to the extent permitted under the Investment Company Act of 1940, as amended, and the rules and regulations thereunder , and under the terms of applicable no-action relief or exemptive orders granted thereunder .The Sub-Adviser creates a target universe that consists of dividend paying securities by screening for companies that exhibit stable dividend yields within each industry sector. Once the Sub-Adviser creates this target universe, the Sub-Adviser seeks to identify the most attractive securities within various geographic regions and sectors by ranking each security relative to other securities within its region or sector, as applicable, using proprietary fundamental sector-specific quantitative investment models. The Sub-Adviser then uses optimization techniques to seek to achieve the portfolio’s target dividend yield (which is expected to be higher than the Index in aggregate), manage target beta, determine active weights, and neutralize region and sector exposures in order to create a portfolio that the Sub-Adviser believes will provide the potential for maximum total return consistent with maintaining lower volatility than the Index. Under certain market conditions, the Fund will likely earn a lower level of total return than it would in the absence of its strategy of maintaining a relatively lower level of volatility.In evaluating investments for the Fund, the Sub-Adviser, through its quantitative methods and models, takes into account a wide variety of factors and considerations to determine whether any or all of those factors or considerations might have a material effect on the value, risks, or prospects of a company. Among the factors considered, the Sub-Adviser expects that its quantitative methods and models will typically take into account environmental, social, and governance (“ESG”) factors. In considering ESG factors, the Sub-Adviser’s quantitative methods and models will rely primarily on factors identified through the Sub-Adviser’s proprietary empirical research and on third-party evaluations of a company’s ESG standing. ESG factors will be only one of many considerations in the evaluation of any potential investment; the extent to which ESG factors will affect the Sub-Adviser’s decision to invest in a company, if at all, will depend on the operation of the Sub-Adviser’s quantitative processes and the judgment of the Sub-Adviser.The Fund may lend portfolio securities on a short-term or long-term basis, up to 33 1∕3% of its total assets.
Risk [Heading]	rr_RiskHeading	<span style="color:#000000;font-family:Arial;font-size:11.16pt;font-weight:bold;text-transform:uppercase;">Principal Risks</span>
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	You could lose money on an investment in the Fund. Any of the following risks, among others, could affect Fund performance or cause the Fund to lose money or to underperform market averages of other funds. The principal risks are presented in alphabetical order to facilitate readability, and their order does not imply that the realization of one risk is more likely to occur or have a greater adverse impact than another risk.Company: The price of a company’s stock could decline or underperform for many reasons, including, among others, poor management, financial problems, reduced demand for the company’s goods or services, regulatory fines and judgments, or business challenges. If a company is unable to meet its financial obligations, declares bankruptcy, or becomes insolvent, its stock could become worthless.Currency: To the extent that the Fund invests directly or indirectly in foreign (non-U.S.) currencies or in securities denominated in, or that trade in, foreign (non-U.S.) currencies, it is subject to the risk that those foreign (non-U.S.) currencies will decline in value relative to the U.S. dollar or, in the case of hedging positions, that the U.S. dollar will decline in value relative to the currency being hedged by the Fund through foreign currency exchange transactions.Derivative Instruments: Derivative instruments are subject to a number of risks, including the risk of changes in the market price of the underlying asset, reference rate, or index credit risk with respect to the counterparty, risk of loss due to changes in market interest rates, liquidity risk, valuation risk, and volatility risk. The amounts required to purchase certain derivatives may be small relative to the magnitude of exposure assumed by the Fund. Therefore, the purchase of certain derivatives may have an economic leveraging effect on the Fund and exaggerate any increase or decrease in the net asset value. Derivatives may not perform as expected, so the Fund may not realize the intended benefits. When used for hedging purposes, the change in value of a derivative may not correlate as expected with the asset, reference rate, or index being hedged. When used as an alternative or substitute for direct cash investment, the return provided by the derivative may not provide the same return as direct cash investment.Dividend: Companies that issue dividend yielding equity securities are not required to continue to pay dividends on such securities. Therefore, there is a possibility that such companies could reduce or eliminate the payment of dividends in the future. As a result, the Fund’s ability to execute its investment strategy may be limited.Environmental, Social, and Governance (Quantitative): The Sub-Adviser’s consideration of ESG factors in selecting investments for the Fund depends on the operation of quantitative methods and models whose design reflects qualitative and subjective judgments of the Sub-Adviser, including reliance on, or incorporation of, data in respect of ESG factors that may rely on third party data that might be incorrect or based on incomplete or inaccurate information. There is no minimum percentage of the Fund’s assets that will be invested in companies that the Sub-Adviser views favorably in light of ESG factors, and the Sub-Adviser may not invest in companies that compare favorably to other companies on the basis of ESG factors. It is possible that the Fund will have less exposure to certain companies due to the Sub-Adviser’s assessment of ESG factors than other comparable mutual funds. There can be no assurance that an investment selected by the Sub-Adviser, which includes its consideration of ESG factors, will provide more favorable investment performance than another potential investment, and such an investment may, in fact, underperform other potential investments.Foreign (Non-U.S.) Investments: Investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies due, in part, to: smaller markets; differing reporting, accounting, auditing, and financial reporting standards and practices; nationalization, expropriation, or confiscatory taxation; foreign currency fluctuations, currency blockage, or replacement; potential for default on sovereign debt; and political changes or diplomatic developments, which may include the imposition of economic sanctions or other measures by the U.S. or other governments and supranational organizations. Markets and economies throughout the world are becoming increasingly interconnected, and conditions or events in one market, country, or region may adversely impact investments or issuers in another market, country, or region.Investment Model: The Sub-Adviser’s proprietary model may not adequately take into account existing or unforeseen market factors or the interplay between such factors. Volatility management techniques may not always be successful in reducing volatility, may not protect against market declines, and may limit the Fund’s participation in market gains, negatively impacting performance even during periods when the market is rising. During sudden or significant market rallies, such underperformance may be significant. Moreover, volatility management strategies may increase portfolio transaction costs, which may increase losses or reduce gains. The Fund’s volatility may not be lower than that of the Fund’s Index during all market cycles due to market factors. Funds that are actively managed, in whole or in part, according to a quantitative investment model can perform differently from the market, based on the investment model and the factors used in the analysis, the weight placed on each factor, and changes from the factors’ historical trends. Mistakes in the construction and implementation of the investment models (including, for example, data problems and/or software issues) may create errors or limitations that might go undetected or are discovered only after the errors or limitations have negatively impacted performance. There is no guarantee that the use of these investment models will result in effective investment decisions for the Fund.Liquidity: If a security is illiquid, the Fund might be unable to sell the security at a time when the Fund’s manager might wish to sell, or at all. Further, the lack of an established secondary market may make it more difficult to value illiquid securities, exposing the Fund to the risk that the prices at which it sells illiquid securities will be less than the prices at which they were valued when held by the Fund, which could cause the Fund to lose money. The prices of illiquid securities may be more volatile than more liquid securities, and the risks associated with illiquid securities may be greater in times of financial stress.Market: The market values of securities will fluctuate, sometimes sharply and unpredictably, based on overall economic conditions, governmental actions or intervention, market disruptions caused by trade disputes or other factors, political developments, and other factors. Prices of equity securities tend to rise and fall more dramatically than those of fixed-income instruments. Additionally, legislative, regulatory, or tax policies or developments may adversely impact the investment techniques available to a manager, add to costs and impair the ability of the Fund to achieve its investment objectives.Market Capitalization: Stocks fall into three broad market capitalization categories: large, mid, and small. Investing primarily in one category carries the risk that, due to current market conditions, that category may be out of favor with investors. If valuations of large-capitalization companies appear to be greatly out of proportion to the valuations of mid- or small-capitalization companies, investors may migrate to the stocks of mid- and small-capitalization companies causing a fund that invests in these companies to increase in value more rapidly than a fund that invests in large-capitalization companies. Investing in mid- and small-capitalization companies may be subject to special risks associated with narrower product lines, more limited financial resources, smaller management groups, more limited publicly available information, and a more limited trading market for their stocks as compared with large-capitalization companies. As a result, stocks of mid- and small-capitalization companies may be more volatile and may decline significantly in market downturns.Market Disruption and Geopolitical: The Fund is subject to the risk that geopolitical events will disrupt securities markets and adversely affect global economies and markets. Due to the increasing interdependence among global economies and markets, conditions in one country, market, or region might adversely impact markets, issuers and/or foreign exchange rates in other countries, including the United States. Wars, terrorism, global health crises and pandemics, and other geopolitical events that have led, and may continue to lead, to increased market volatility and may have adverse short- or long-term effects on U.S., and global economies and markets, generally. For example, the COVID-19 pandemic has resulted, and may continue to result, in significant market volatility, exchange suspensions and closures, declines in global financial markets, higher default rates, supply chain disruptions, and a substantial economic downturn in economies throughout the world. Natural and environmental disasters and systemic market dislocations are also highly disruptive to economies and markets. In addition, military action by Russia in Ukraine has, and may continue to, adversely affect global energy and financial markets and therefore could affect the value of the Fund’s investments, including beyond the Fund’s direct exposure to Russian issuers or nearby geographic regions. The extent and duration of the military action, sanctions, and resulting market disruptions are impossible to predict and could be substantial. Those events as well as other changes in foreign (non-U.S.) and domestic economic, social, and political conditions also could adversely affect individual issuers or related groups of issuers, securities markets, interest rates, credit ratings, inflation, investor sentiment, and other factors affecting the value of the Fund’s investments. Any of these occurrences could disrupt the operations of the Fund and of the Fund’s service providers.Other Investment Companies: The main risk of investing in other investment companies, including ETFs, is the risk that the value of an investment company’s underlying investments might decrease. Shares of investment companies that are listed on an exchange may trade at a discount or premium from their net asset value. You will pay a proportionate share of the expenses of those other investment companies (including management fees, administration fees, and custodial fees) in addition to the Fund’s expenses. The investment policies of the other investment companies may not be the same as those of the Fund; as a result, an investment in the other investment companies may be subject to additional or different risks than those to which the Fund is typically subject. In addition, shares of ETFs may trade at a premium or discount to net asset value and are subject to secondary market trading risks. Secondary markets may be subject to irregular trading activity, wide bid/ask spreads, and extended trade settlement periods in times of market stress because market makers and authorized participants may step away from making a market in an ETF’s shares, which could cause a material decline in the ETF’s net asset value.Real Estate Companies and Real Estate Investment Trusts: Investing in real estate companies and REITs may subject the Fund to risks similar to those associated with the direct ownership of real estate, including losses from casualty or condemnation, changes in local and general economic conditions, supply and demand, market interest rates, zoning laws, regulatory limitations on rents, property taxes, overbuilding, high foreclosure rates, and operating expenses in addition to terrorist attacks, wars, or other acts that destroy real property. In addition, REITs may also be affected by tax and regulatory requirements in that a REIT may not qualify for favorable tax treatment or regulatory exemptions. Investments in REITs are affected by the management skill of the REIT’s sponsor. The Fund will indirectly bear its proportionate share of expenses, including management fees, paid by each REIT in which it invests.Securities Lending: Securities lending involves two primary risks: “ investment risk ” and “ borrower default risk. ” When lending securities, the Fund will receive cash or U.S. government securities as collateral. Investment risk is the risk that the Fund will lose money from the investment of the cash collateral received from the borrower. Borrower default risk is the risk that the Fund will lose money due to the failure of a borrower to return a borrowed security. Securities lending may result in leverage. The use of leverage may exaggerate any increase or decrease in the net asset value, causing the Fund to be more volatile. The use of leverage may increase expenses and increase the impact of the Fund’s other risks.An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation, the Federal Reserve Board or any other government agency.
Risk Lose Money [Text]	rr_RiskLoseMoney	<span style="color:#000000;font-family:Arial;font-size:9.30pt;margin-left:0%;">You could lose money on an investment in the Fund.</span>
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	<span style="color:#000000;font-family:Arial;font-size:9.30pt;font-style:italic;margin-left:0%;">An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation, </span><span style="color:#000000;font-family:Arial;font-size:9.30pt;font-style:italic;">the Federal Reserve Board or any other government agency</span><span style="color:#000000;font-family:Arial;font-size:9.30pt;">.</span>
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	<span style="color:#000000;font-family:Arial;font-size:11.16pt;font-weight:bold;text-transform:uppercase;">Performance Information</span>
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The following information is intended to help you understand the risks of investing in the Fund. The following bar chart shows the changes in the Fund's performance from year to year, and the table compares the Fund's performance to the performance of a broad-based securities market index/indices with investment characteristics similar to those of the Fund for the same period. The Fund's performance information reflects applicable fee waivers and/or expense limitations in effect during the period presented. Absent such fee waivers/expense limitations, if any, performance would have been lower. The bar chart shows the performance of the Fund's Class A shares. Sales charges are not reflected in the bar chart. If they were, returns would be less than those shown. However, the table includes all applicable fees and sales charges. Performance for other share classes would differ to the extent they have differences in their fees and expenses. The Class R6 shares performance shown for the period prior to their inception date is the performance of Class I shares without adjustment for any differences in the expenses between the two classes. If adjusted for such differences, returns would be different.The Fund’s performance prior to December 31, 2020 reflects returns achieved pursuant to different principal investment strategies. The Fund’s performance prior to May 1, 2018 reflects returns achieved pursuant to different principal investment strategies. The Fund's past performance (before and after taxes) is no guarantee of future results. For the most recent performance figures, go to https://individuals.voya.com/literature or call 1-800-992-0180.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	<span style="color:#000000;font-family:Arial;font-size:9.30pt;">The following bar chart shows the changes in the Fund's performance from year to year, and the table compares the Fund's performance to the performance of a broad-based securities market index/indices with investment characteristics similar to those of the Fund for the same period.</span>
Performance Availability Phone [Text]	rr_PerformanceAvailabilityPhone	<span style="color:#000000;font-family:Arial;font-size:9.30pt;font-style:italic;">1-800-992-0180</span>
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	<span style="color:#000000;font-family:Arial;font-size:9.30pt;font-style:italic;">https://individuals.voya.com/literature</span>
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	<span style="color:#000000;font-family:Arial;font-size:9.30pt;font-style:italic;"> The Fund's past performance (before and after taxes) is no guarantee of future results.</span>
Bar Chart [Heading]	rr_BarChartHeading	<span style="color:#FF8000;font-family:Arial;font-size:8.928pt;font-weight:bold;">Calendar Year Total Returns </span><span style="color:#000000;font-family:Arial;font-size:7.44pt;">Class A</span><span style="color:#000000;font-family:Arial;font-size:7.44pt;margin-left:0%;">(as of December 31 of each year)</span>
Bar Chart Does Not Reflect Sales Loads [Text]	rr_BarChartDoesNotReflectSalesLoads	<span style="color:#000000;font-family:Arial;font-size:9.30pt;"> Sales charges are not reflected in the bar chart. If they were, returns would be less than those shown.</span>
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	Best quarter:4th Quarter 202218.06%Worst quarter:1st Quarter 2020-22.60%
Performance Table Heading	rr_PerformanceTableHeading	<span style="color:#FF8000;font-family:Arial;font-size:8.928pt;font-weight:bold;">Average Annual Total Returns </span><span style="color:#000000;font-family:Arial;font-size:7.44pt;">% </span> <br/><span style="color:#000000;font-family:Arial;font-size:7.44pt;margin-left:0%;">(for the periods ended December 31, 2022)</span>
Performance Table Does Reflect Sales Loads	rr_PerformanceTableDoesReflectSalesLoads	<span style="color:#000000;font-family:Arial;font-size:9.30pt;"> However, the table includes all applicable fees and sales charges.</span>
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	<span style="color:#000000;font-family:Arial;font-size:9.30pt;margin-left:0%;">After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the </span><span style="color:#000000;font-family:Arial;font-size:9.30pt;">impact of state and local taxes.</span>
Performance Table Not Relevant to Tax Deferred	rr_PerformanceTableNotRelevantToTaxDeferred	<span style="color:#000000;font-family:Arial;font-size:9.30pt;"> Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax advantaged arrangements such as 401(k) plans or individual retirement accounts (“IRAs”).</span>
Performance Table One Class of after Tax Shown [Text]	rr_PerformanceTableOneClassOfAfterTaxShown	<span style="color:#000000;font-family:Arial;font-size:9.30pt;"> After-tax returns are shown for Class A shares only. After-tax returns for other classes will vary.</span>
Performance Table Explanation after Tax Higher	rr_PerformanceTableExplanationAfterTaxHigher	<span style="color:#000000;font-family:Arial;font-size:9.30pt;"> In some cases the after-tax returns may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.</span>
Performance Table Closing [Text Block]	rr_PerformanceTableClosingTextBlock	After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax advantaged arrangements such as 401(k) plans or individual retirement accounts (“IRAs”). In some cases the after-tax returns may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period. After-tax returns are shown for Class A shares only. After-tax returns for other classes will vary.
Index No Deduction For Fees Expenses Taxes Two [Text]	vmf_IndexNoDeductionForFeesExpensesTaxesTwo	<span style="color:#000000;font-family:Arial Narrow;font-size:8pt;">The index returns include the reinvestment of dividends and distributions net of withholding taxes, but do not reflect fees, brokerage commissions, or other expenses.</span>
Class A I R6 and T Shares | Voya International High Dividend Low Volatility Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Maximum sales charge (load) as a % of offering price imposed on purchases	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	5.75%
Maximum deferred sales charge (load) as a % of purchase or sales price, whichever is less	rr_MaximumDeferredSalesChargeOverOther	none	[1]
Management Fees	rr_ManagementFeesOverAssets	0.50%
Distribution and/or Shareholder Services (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.25%
Other Expenses	rr_OtherExpensesOverAssets	1.27%
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.01%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	2.03%	[2]
Waivers and Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	(1.12%)	[3]
Total Annual Fund Operating Expenses after Waivers and Reimbursements	rr_NetExpensesOverAssets	0.91%
1 Yr	rr_ExpenseExampleYear01	$ 663
3 Yrs	rr_ExpenseExampleYear03	1,073
5 Yrs	rr_ExpenseExampleYear05	1,508
10 Yrs	rr_ExpenseExampleYear10	$ 2,713
2013	rr_AnnualReturn2013
2014	rr_AnnualReturn2014
2015	rr_AnnualReturn2015
2016	rr_AnnualReturn2016
2017	rr_AnnualReturn2017	20.00%
2018	rr_AnnualReturn2018	(13.86%)
2019	rr_AnnualReturn2019	15.14%
2020	rr_AnnualReturn2020	(1.25%)
2021	rr_AnnualReturn2021	11.54%
2022	rr_AnnualReturn2022	(9.02%)
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	<span style="font-family:Arial;font-size:7.44pt;font-weight:bold;margin-left:0.0pt;">Best quarter:</span>
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Dec. 31, 2022
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	18.06%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	<span style="font-family:Arial;font-size:7.44pt;font-weight:bold;margin-left:0.0pt;">Worst quarter:</span>
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Mar. 31, 2020
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(22.60%)
1 Yr	rr_AverageAnnualReturnYear01	(14.27%)
5 Yrs	rr_AverageAnnualReturnYear05	(1.29%)
10 Yrs	rr_AverageAnnualReturnYear10
Since Inception	rr_AverageAnnualReturnSinceInception	2.21%
Inception Date	rr_AverageAnnualReturnInceptionDate	Dec. 06, 2016
Class A I R6 and T Shares | Voya International High Dividend Low Volatility Fund | Class I
Risk Return Abstract	rr_RiskReturnAbstract
Maximum sales charge (load) as a % of offering price imposed on purchases	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum deferred sales charge (load) as a % of purchase or sales price, whichever is less	rr_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	0.50%
Distribution and/or Shareholder Services (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	1.35%
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.01%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.86%	[2]
Waivers and Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	(1.20%)	[3]
Total Annual Fund Operating Expenses after Waivers and Reimbursements	rr_NetExpensesOverAssets	0.66%
1 Yr	rr_ExpenseExampleYear01	$ 67
3 Yrs	rr_ExpenseExampleYear03	468
5 Yrs	rr_ExpenseExampleYear05	894
10 Yrs	rr_ExpenseExampleYear10	$ 2,081
1 Yr	rr_AverageAnnualReturnYear01	(8.96%)
5 Yrs	rr_AverageAnnualReturnYear05	0.13%
10 Yrs	rr_AverageAnnualReturnYear10
Since Inception	rr_AverageAnnualReturnSinceInception	3.48%
Inception Date	rr_AverageAnnualReturnInceptionDate	Dec. 06, 2016
Class A I R6 and T Shares | Voya International High Dividend Low Volatility Fund | Class R6
Risk Return Abstract	rr_RiskReturnAbstract
Maximum sales charge (load) as a % of offering price imposed on purchases	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum deferred sales charge (load) as a % of purchase or sales price, whichever is less	rr_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	0.50%
Distribution and/or Shareholder Services (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	2.24%
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.01%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	2.75%	[2]
Waivers and Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	(2.12%)	[3]
Total Annual Fund Operating Expenses after Waivers and Reimbursements	rr_NetExpensesOverAssets	0.63%
1 Yr	rr_ExpenseExampleYear01	$ 64
3 Yrs	rr_ExpenseExampleYear03	651
5 Yrs	rr_ExpenseExampleYear05	1,265
10 Yrs	rr_ExpenseExampleYear10	$ 2,924
1 Yr	rr_AverageAnnualReturnYear01	(8.82%)
5 Yrs	rr_AverageAnnualReturnYear05	0.13%
10 Yrs	rr_AverageAnnualReturnYear10
Since Inception	rr_AverageAnnualReturnSinceInception	3.48%
Inception Date	rr_AverageAnnualReturnInceptionDate	Feb. 28, 2020
Class A I R6 and T Shares | Voya International High Dividend Low Volatility Fund | After tax on distributions | Class A
Risk Return Abstract	rr_RiskReturnAbstract
1 Yr	rr_AverageAnnualReturnYear01	(14.91%)
5 Yrs	rr_AverageAnnualReturnYear05	(2.37%)
10 Yrs	rr_AverageAnnualReturnYear10
Since Inception	rr_AverageAnnualReturnSinceInception	1.05%
Class A I R6 and T Shares | Voya International High Dividend Low Volatility Fund | After tax on distributions with sale | Class A
Risk Return Abstract	rr_RiskReturnAbstract
1 Yr	rr_AverageAnnualReturnYear01	(7.79%)
5 Yrs	rr_AverageAnnualReturnYear05	(0.98%)
10 Yrs	rr_AverageAnnualReturnYear10
Since Inception	rr_AverageAnnualReturnSinceInception	1.66%
Class A I R6 and T Shares | Voya International High Dividend Low Volatility Fund | MSCI EAFE® Value Index | Class A
Risk Return Abstract	rr_RiskReturnAbstract
1 Yr	rr_AverageAnnualReturnYear01	(5.58%)	[4]
5 Yrs	rr_AverageAnnualReturnYear05	0.17%	[4]
10 Yrs	rr_AverageAnnualReturnYear10		[4]
Since Inception	rr_AverageAnnualReturnSinceInception	3.70%	[4]
Class A I R6 and T Shares | Voya International High Dividend Low Volatility Fund | MSCI EAFE® Value Index | Class I
Risk Return Abstract	rr_RiskReturnAbstract
1 Yr	rr_AverageAnnualReturnYear01	(5.58%)	[4]
5 Yrs	rr_AverageAnnualReturnYear05	0.17%	[4]
10 Yrs	rr_AverageAnnualReturnYear10		[4]
Since Inception	rr_AverageAnnualReturnSinceInception	3.70%	[4]
Class A I R6 and T Shares | Voya International High Dividend Low Volatility Fund | MSCI EAFE® Value Index | Class R6
Risk Return Abstract	rr_RiskReturnAbstract
1 Yr	rr_AverageAnnualReturnYear01	(5.58%)	[4]
5 Yrs	rr_AverageAnnualReturnYear05	0.17%	[4]
10 Yrs	rr_AverageAnnualReturnYear10		[4]
Since Inception	rr_AverageAnnualReturnSinceInception	3.70%	[4]

[1] A contingent deferred sales charge of 1.00% is assessed on certain redemptions of Class A shares made within 18 months after purchase where no initial sales charge was paid at the time of purchase as part of an investment of $1,000,000 or more.

[2] Total Annual Fund Operating Expenses shown may be higher than the Fund’s ratio of expenses to average net assets shown in the Financial Highlights, which reflect the operating expenses of the Fund and do not include Acquired Fund Fees and Expenses.

[3] Voya Investments, LLC (the “Investment Adviser”) is contractually obligated to limit expenses to 0.90%, 0.65%, and 0.62% for Class A, Class I, and Class R6 shares, respectively, through March 1, 2024. The limitation does not extend to interest, taxes, investment-related costs, leverage expenses, extraordinary expenses, and Acquired Fund Fees and Expenses. This limitation is subject to possible recoupment by the Investment Adviser within 36 months of the waiver or reimbursement. The amount of the recoupment is limited to the lesser of the amounts that would be recoupable under: (i) the expense limitation in effect at the time of the waiver or reimbursement; or (ii) the expense limitation in effect at the time of recoupment. Termination or modification of this obligation requires approval by the Fund’s Board of Trustees (the “Board”).

[4] The index returns include the reinvestment of dividends and distributions net of withholding taxes, but do not reflect fees, brokerage commissions, or other expenses.