Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	Voya MUTUAL FUNDS
Prospectus Date	rr_ProspectusDate	Feb. 29, 2016
Voya Diversified International Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	Voya Diversified International Fund
Objective [Heading]	rr_ObjectiveHeading	INVESTMENT OBJECTIVE
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Fund’s investment objective is to seek long-term growth of capital.
Expense [Heading]	rr_ExpenseHeading	FEES AND EXPENSES OF THE FUND
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	These tables describe the fees and expenses that you may pay if you buy and hold shares of the Fund. 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 professional and in the discussion in the Sales Charges section of the Prospectus (page 28) or the Purchase, Exchange, and Redemption of Shares section of the Statement of Additional Information (page 89).
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	Shareholder Fees Fees paid directly from your investment
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	Annual Fund Operating Expenses Expenses you pay each year as a % of the value of your investment
Fee Waiver or Reimbursement over Assets, Date of Termination	rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination	March 1, 2018 March 1, 2017
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	Portfolio Turnover
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 mean higher taxes if you are investing in a taxable account. These costs, which are not reflected in Annual Fund Operating Expenses or in the Expense Examples, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 19% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	19.00%
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 million or more.
Expense Breakpoint Discounts [Text]	rr_ExpenseBreakpointDiscounts	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.
Expense Breakpoint, Minimum Investment Required [Amount]	rr_ExpenseBreakpointMinimumInvestmentRequiredAmount	$ 50,000
Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text]	rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees	Total Annual Fund Operating Expenses may be higher than the Fund’s ratio of expenses to average net assets shown in the Financial Highlights, which reflects the operating expenses of the Fund and does not include Acquired Fund Fees and Expenses.
Expense Example [Heading]	rr_ExpenseExampleHeading	Expense Examples
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	The Examples are intended to help you compare the cost of investing in shares of the Fund with the costs of investing in other mutual funds. The Examples assume that you invest $10,000 in the Fund for the time periods indicated. The Examples show costs if you sold (redeemed) your shares at the end of the period or continued to hold them. The Examples also assume that your investment had a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example Closing [Text Block]	rr_ExpenseExampleClosingTextBlock	The Examples reflect applicable expense limitation agreements and/or waivers in effect, if any, for the one-year period and the first two years of the three-, five-, and ten-year periods.
Strategy [Heading]	rr_StrategyHeading	PRINCIPAL INVESTMENT STRATEGIES
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The Fund invests in a combination of other funds in the same fund complex (“Underlying Funds”) that, in turn, invest in foreign equity securities of issuers located in a number of different countries, other than the United States. The Fund seeks to diversify its holdings internationally by including Underlying Funds that invest in companies of all market capitalizations; Underlying Funds that invest using a growth, value, or blend style; and Underlying Funds that invest in companies in both developed countries and countries with emerging securities markets. The Fund may invest in derivative instruments, including futures and swaps (including interest rate swaps, total return swaps, and credit default swaps), to make tactical allocations, as a substitute for taking a position in the underlying asset, and to assist in managing cash. The Fund may hold cash and cash equivalents. The Fund's current approximate target allocations (“Target Allocations”) (expressed as a percentage of its net assets) among the Underlying Funds are set out below. As these Target Allocations are as of the date of this Prospectus, the actual allocations of the Fund's assets may deviate from the percentages shown: international core - 40%; international growth - 21%; international value - 24%; international small cap - 5%; and emerging markets - 10%. The Target Allocations are measured with reference to the primary strategies of the Underlying Funds; actual exposure to these asset classes will vary from the Target Allocations if an Underlying Fund is not substantially invested in accordance with its primary strategy. The Fund may also allocate to international real estate securities including real estate investment trusts. The Fund may be rebalanced periodically to return to the Target Allocations. The Fund's Target Allocations may be changed, at any time, in accordance with the Fund's asset allocation process. The Fund may periodically deviate from the Target Allocations based on an assessment of the current market conditions or other factors. Generally, the deviations fall in the range of +/- 10% relative to the current Target Allocations. The adviser may determine, in light of market conditions or other factors, to deviate by a wider margin in order to protect the Fund, to achieve its investment objective, or to take advantage of particular opportunities. In addition to investing in the Underlying Funds, the Fund may also invest up to 20% of its total assets in exchange-traded funds to gain exposure to equity securities, or alternative strategies, which may include commodities.
Risk [Heading]	rr_RiskHeading	PRINCIPAL RISKS
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	You could lose money on an investment in the Fund. The value of your investment in the Fund changes with the values of the Underlying Funds and their investments. The Fund is subject to the following principal risks (either directly or through investments in one or more Underlying Funds). Any of these risks, among others, could affect the Fund's or an Underlying Fund's performance or cause the Fund or an Underlying Fund to lose money or to underperform market averages of other funds. Asset Allocation: Investment performance depends on the manager’s skill in allocating assets among Underlying Funds and asset classes based on judgments by the manager. There is a risk that the manager may allocate assets to an Underlying Fund or asset class that underperforms compared to other Underlying Funds or asset classes. Cash/Cash Equivalents: Investments in cash or cash equivalents may lower returns and result in potential lost opportunities to participate in market appreciation which could negatively impact the Fund’s performance and ability to achieve its investment objective. Commodities: Commodity prices can have significant volatility, and exposure to commodities can cause the net asset value of the Fund’s shares to decline or fluctuate in a rapid and unpredictable manner. A liquid secondary market may not exist for certain commodity investments, which may make it difficult for the Fund to sell them at a desirable price or at the price at which it is carrying them. 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 company goods or services, regulatory fines and judgments, or business challenges. If a company declares bankruptcy or becomes insolvent, its stock could become worthless. Credit Default Swaps: The Fund may enter into credit default swaps, either as a buyer or a seller of the swap. A buyer of a swap pays a fee to buy protection against the risk that a security will default. If no default occurs, the Fund will have paid the fee, but typically will recover nothing under the swap. A seller of a swap receives payment(s) in return for an obligation to pay the counterparty the full notional value of a security in the event of a default of the security issuer. As a seller of a swap, the Fund would effectively add leverage to its portfolio because, in addition to its total net assets, the Fund would be subject to investment exposure on the full notional value of the swap. Credit default swaps are particularly subject to counterparty, credit, valuation, liquidity and leveraging risks and the risk that the swap may not correlate as expected. Certain standardized swaps are subject to mandatory central clearing. Central clearing is expected to reduce counterparty credit risk and increase liquidity; however, there is no assurance that they will achieve that result, and in the meantime, central clearing and related requirements expose the Fund to new kinds of costs and risks. Currency: To the extent that the Fund invests directly 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 securities, credit risk with respect to the counterparty, risk of loss due to changes in market interest rates and liquidity 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 currency, security or other risk being hedged. When used as an alternative or substitute for direct cash investments, the return provided by the derivative may not provide the same return as direct cash investment. In addition, given their complexity, derivatives expose the Fund to the risk of improper valuation. Foreign Investments/Developing and Emerging Markets: 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 to: smaller markets; differing reporting, accounting, and auditing standards; nationalization, expropriation, or confiscatory taxation; foreign currency fluctuations, currency blockage, or replacement; potential for default on sovereign debt; or political changes or diplomatic developments, which may include the imposition of economic sanctions or other measures by the United States 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. Foreign investment risks may be greater in developing and emerging markets than in developed markets. Growth Investing: Prices of growth stocks are more sensitive to investor perceptions of the issuing company’s growth potential and may fall quickly and significantly if investors suspect that actual growth may be less than expected. There is a risk that funds that invest in growth-oriented stocks may underperform other funds that invest more broadly. Growth stocks tend to be more volatile than value stocks, and may underperform the market as a whole over any given time period. 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 price at which it sells illiquid securities will be less than the price at which they were valued when held by the Fund. The prices of illiquid securities may be more volatile than more liquid investments. The risks associated with illiquid securities may be greater in times of financial stress. The Fund could lose money if it cannot sell a security at the time and price that would be most beneficial to the Fund. Market: Stock prices may be volatile or have reduced liquidity in response to real or perceived impacts of factors including, but not limited to, economic conditions, changes in market interest rates, and political events. Stock markets tend to be cyclical, with periods when stock prices generally rise and periods when stock prices generally decline. Any given stock market segment may remain out of favor with investors for a short or long period of time, and stocks as an asset class may underperform bonds or other asset classes during some periods. Additionally, legislative, regulatory or tax policies or developments in these areas 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-sized companies causing the Fund that invests in these companies to increase in value more rapidly than a fund that invests in larger 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 larger companies. As a result, stocks of mid- and small-capitalization companies may be more volatile and may decline significantly in market downturns. Other Investment Companies: The main risk of investing in other investment companies, including exchange-traded funds (“ETFs”), is the risk that the value of the securities underlying an investment company 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 expenses of the Fund. 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. Real Estate Companies and Real Estate Investment Trusts (“REITs”): 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, and operating expenses in addition to terrorist attacks, war, or other acts that destroy real property. Investments in REITs are affected by the management skill and creditworthiness of the REIT. The Fund will indirectly bear its proportionate share of expenses, including management fees, paid by each REIT in which it invests. Value Investing: Securities that appear to be undervalued may never appreciate to the extent expected. Further, because the prices of value-oriented securities tend to correlate more closely with economic cycles than growth-oriented securities, they generally are more sensitive to changing economic conditions, such as changes in market interest rates, corporate earnings and industrial production. The manager may be wrong in its assessment of a company’s value and the securities the Fund holds may not reach their full values. A particular risk of the Fund’s value approach is that some holdings may not recover and provide the capital growth anticipated or a security judged to be undervalued may actually be appropriately priced. The market may not favor value-oriented securities and may not favor equities at all. During those periods, the Fund’s relative performance may suffer. There is a risk that Funds that invest in value-oriented stocks may underperform other funds that invest more broadly. 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	You could lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	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.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	PERFORMANCE INFORMATION
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 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. Other class shares’ performance would be higher or lower than Class A shares' performance because of the higher or lower expenses paid by Class A shares. The Class W shares performance shown for the period prior to their inception date is the performance of Class A 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 past performance (before and after taxes) is no guarantee of future results. For the most recent performance figures, go to www.voyainvestments.com/literature or call 1-800-992-0180.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	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 for the same period.
Performance Availability Phone [Text]	rr_PerformanceAvailabilityPhone	1-800-992-0180
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	www.voyainvestments.com/literature
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	The Fund's past performance (before and after taxes) is no guarantee of future results.
Bar Chart [Heading]	rr_BarChartHeading	Calendar Year Total Returns Class A (as of December 31 of each year)
Bar Chart Does Not Reflect Sales Loads [Text]	rr_BarChartDoesNotReflectSalesLoads	Sales charges are not reflected in the bar chart. If they were, returns would be less than those shown.
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	Best quarter: 2nd 2009, 26.94% and Worst quarter: 4th 2008, -21.79%
Performance Table Heading	rr_PerformanceTableHeading	Average Annual Total Returns % (for the periods ended December 31, 2015)
Performance Table Does Reflect Sales Loads	rr_PerformanceTableDoesReflectSalesLoads	However, the table includes all applicable fees and sales charges.
Index No Deduction for Fees, Expenses, Taxes [Text]	rr_IndexNoDeductionForFeesExpensesTaxes	The index returns include the reinvestment of dividends and distributions net of withholding taxes, but do not reflect fees, brokerage commissions, or other expenses.
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	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.
Performance Table Not Relevant to Tax Deferred	rr_PerformanceTableNotRelevantToTaxDeferred	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.
Performance Table One Class of after Tax Shown [Text]	rr_PerformanceTableOneClassOfAfterTaxShown	After-tax returns are shown for Class A shares only. After-tax returns for other classes will vary.
Performance Table Explanation after Tax Higher	rr_PerformanceTableExplanationAfterTaxHigher	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.
Performance Table Narrative	rr_PerformanceTableNarrativeTextBlock	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. 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.
Voya Diversified International Fund | Class A
Risk/Return:	rr_RiskReturnAbstract
Maximum sales charge (load) as a % of offering price	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	5.75%
Maximum deferred sales charge as a % of purchase or sales price, whichever is less	rr_MaximumDeferredSalesChargeOverOther	none	[1]
Management Fees	rr_ManagementFeesOverAssets	0.14%	[2]
Distribution and/or Shareholder Services (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.25%
Other Expenses	rr_OtherExpensesOverAssets	0.44%
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.91%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.74%	[3]
Waivers and Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	(0.41%)	[4]
Total Annual Fund Operating Expenses after Waivers and Reimbursements	rr_NetExpensesOverAssets	1.33%
1 Yr	rr_ExpenseExampleYear01	$ 703
3 Yrs	rr_ExpenseExampleYear03	1,038
5 Yrs	rr_ExpenseExampleYear05	1,413
10 Yrs	rr_ExpenseExampleYear10	2,463
1 Yr	rr_ExpenseExampleNoRedemptionYear01	703
3 Yrs	rr_ExpenseExampleNoRedemptionYear03	1,038
5 Yrs	rr_ExpenseExampleNoRedemptionYear05	1,413
10 Yrs	rr_ExpenseExampleNoRedemptionYear10	$ 2,463
2006	rr_AnnualReturn2006	24.48%
2007	rr_AnnualReturn2007	12.04%
2008	rr_AnnualReturn2008	(45.46%)
2009	rr_AnnualReturn2009	33.98%
2010	rr_AnnualReturn2010	11.54%
2011	rr_AnnualReturn2011	(15.06%)
2012	rr_AnnualReturn2012	17.68%
2013	rr_AnnualReturn2013	16.41%
2014	rr_AnnualReturn2014	(6.40%)
2015	rr_AnnualReturn2015	(1.28%)
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	Best quarter:
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Jun. 30, 2009
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	26.94%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	Worst quarter:
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Dec. 31, 2008
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(21.79%)
1 Yr	rr_AverageAnnualReturnYear01	(6.96%)
5 Yrs	rr_AverageAnnualReturnYear05	0.26%
10 Yrs	rr_AverageAnnualReturnYear10	1.43%
Since Inception	rr_AverageAnnualReturnSinceInception
Inception Date	rr_AverageAnnualReturnInceptionDate	Dec. 21, 2005
Voya Diversified International Fund | Class B
Risk/Return:	rr_RiskReturnAbstract
Maximum sales charge (load) as a % of offering price	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum deferred sales charge as a % of purchase or sales price, whichever is less	rr_MaximumDeferredSalesChargeOverOther	5.00%
Management Fees	rr_ManagementFeesOverAssets	0.14%	[2]
Distribution and/or Shareholder Services (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	1.00%
Other Expenses	rr_OtherExpensesOverAssets	0.44%
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.91%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	2.49%	[3]
Waivers and Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	(0.41%)	[4]
Total Annual Fund Operating Expenses after Waivers and Reimbursements	rr_NetExpensesOverAssets	2.08%
1 Yr	rr_ExpenseExampleYear01	$ 711
3 Yrs	rr_ExpenseExampleYear03	1,020
5 Yrs	rr_ExpenseExampleYear05	1,474
10 Yrs	rr_ExpenseExampleYear10	2,597
1 Yr	rr_ExpenseExampleNoRedemptionYear01	211
3 Yrs	rr_ExpenseExampleNoRedemptionYear03	720
5 Yrs	rr_ExpenseExampleNoRedemptionYear05	1,274
10 Yrs	rr_ExpenseExampleNoRedemptionYear10	$ 2,597
1 Yr	rr_AverageAnnualReturnYear01	(6.96%)
5 Yrs	rr_AverageAnnualReturnYear05	0.32%
10 Yrs	rr_AverageAnnualReturnYear10	1.27%
Since Inception	rr_AverageAnnualReturnSinceInception
Inception Date	rr_AverageAnnualReturnInceptionDate	Dec. 21, 2005
Voya Diversified International Fund | Class C
Risk/Return:	rr_RiskReturnAbstract
Maximum sales charge (load) as a % of offering price	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum deferred sales charge as a % of purchase or sales price, whichever is less	rr_MaximumDeferredSalesChargeOverOther	1.00%
Management Fees	rr_ManagementFeesOverAssets	0.14%	[2]
Distribution and/or Shareholder Services (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	1.00%
Other Expenses	rr_OtherExpensesOverAssets	0.44%
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.91%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	2.49%	[3]
Waivers and Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	(0.41%)	[4]
Total Annual Fund Operating Expenses after Waivers and Reimbursements	rr_NetExpensesOverAssets	2.08%
1 Yr	rr_ExpenseExampleYear01	$ 311
3 Yrs	rr_ExpenseExampleYear03	720
5 Yrs	rr_ExpenseExampleYear05	1,274
10 Yrs	rr_ExpenseExampleYear10	2,782
1 Yr	rr_ExpenseExampleNoRedemptionYear01	211
3 Yrs	rr_ExpenseExampleNoRedemptionYear03	720
5 Yrs	rr_ExpenseExampleNoRedemptionYear05	1,274
10 Yrs	rr_ExpenseExampleNoRedemptionYear10	$ 2,782
1 Yr	rr_AverageAnnualReturnYear01	(2.99%)
5 Yrs	rr_AverageAnnualReturnYear05	0.70%
10 Yrs	rr_AverageAnnualReturnYear10	1.25%
Since Inception	rr_AverageAnnualReturnSinceInception
Inception Date	rr_AverageAnnualReturnInceptionDate	Dec. 21, 2005
Voya Diversified International Fund | Class I
Risk/Return:	rr_RiskReturnAbstract
Maximum sales charge (load) as a % of offering price	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum deferred sales charge as a % of purchase or sales price, whichever is less	rr_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	0.14%	[2]
Distribution and/or Shareholder Services (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.36%
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.91%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.41%	[3]
Waivers and Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	(0.33%)	[4]
Total Annual Fund Operating Expenses after Waivers and Reimbursements	rr_NetExpensesOverAssets	1.08%
1 Yr	rr_ExpenseExampleYear01	$ 110
3 Yrs	rr_ExpenseExampleYear03	405
5 Yrs	rr_ExpenseExampleYear05	732
10 Yrs	rr_ExpenseExampleYear10	1,655
1 Yr	rr_ExpenseExampleNoRedemptionYear01	110
3 Yrs	rr_ExpenseExampleNoRedemptionYear03	405
5 Yrs	rr_ExpenseExampleNoRedemptionYear05	732
10 Yrs	rr_ExpenseExampleNoRedemptionYear10	$ 1,655
1 Yr	rr_AverageAnnualReturnYear01	(1.09%)
5 Yrs	rr_AverageAnnualReturnYear05	1.70%
10 Yrs	rr_AverageAnnualReturnYear10	2.26%
Since Inception	rr_AverageAnnualReturnSinceInception
Inception Date	rr_AverageAnnualReturnInceptionDate	Dec. 21, 2005
Voya Diversified International Fund | Class O
Risk/Return:	rr_RiskReturnAbstract
Maximum sales charge (load) as a % of offering price	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum deferred sales charge as a % of purchase or sales price, whichever is less	rr_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	0.14%	[2]
Distribution and/or Shareholder Services (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.25%
Other Expenses	rr_OtherExpensesOverAssets	0.44%
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.91%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.74%	[3]
Waivers and Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	(0.41%)	[4]
Total Annual Fund Operating Expenses after Waivers and Reimbursements	rr_NetExpensesOverAssets	1.33%
1 Yr	rr_ExpenseExampleYear01	$ 135
3 Yrs	rr_ExpenseExampleYear03	492
5 Yrs	rr_ExpenseExampleYear05	890
10 Yrs	rr_ExpenseExampleYear10	2,004
1 Yr	rr_ExpenseExampleNoRedemptionYear01	135
3 Yrs	rr_ExpenseExampleNoRedemptionYear03	492
5 Yrs	rr_ExpenseExampleNoRedemptionYear05	890
10 Yrs	rr_ExpenseExampleNoRedemptionYear10	$ 2,004
1 Yr	rr_AverageAnnualReturnYear01	(1.27%)
5 Yrs	rr_AverageAnnualReturnYear05	1.46%
10 Yrs	rr_AverageAnnualReturnYear10
Since Inception	rr_AverageAnnualReturnSinceInception	(1.17%)
Inception Date	rr_AverageAnnualReturnInceptionDate	Jun. 04, 2008
Voya Diversified International Fund | Class R
Risk/Return:	rr_RiskReturnAbstract
Maximum sales charge (load) as a % of offering price	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum deferred sales charge as a % of purchase or sales price, whichever is less	rr_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	0.14%	[2]
Distribution and/or Shareholder Services (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.50%
Other Expenses	rr_OtherExpensesOverAssets	0.44%
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.91%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.99%	[3]
Waivers and Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	(0.41%)	[4]
Total Annual Fund Operating Expenses after Waivers and Reimbursements	rr_NetExpensesOverAssets	1.58%
1 Yr	rr_ExpenseExampleYear01	$ 161
3 Yrs	rr_ExpenseExampleYear03	568
5 Yrs	rr_ExpenseExampleYear05	1,019
10 Yrs	rr_ExpenseExampleYear10	2,270
1 Yr	rr_ExpenseExampleNoRedemptionYear01	161
3 Yrs	rr_ExpenseExampleNoRedemptionYear03	568
5 Yrs	rr_ExpenseExampleNoRedemptionYear05	1,019
10 Yrs	rr_ExpenseExampleNoRedemptionYear10	$ 2,270
1 Yr	rr_AverageAnnualReturnYear01	(1.53%)
5 Yrs	rr_AverageAnnualReturnYear05	1.23%
10 Yrs	rr_AverageAnnualReturnYear10
Since Inception	rr_AverageAnnualReturnSinceInception	(0.26%)
Inception Date	rr_AverageAnnualReturnInceptionDate	Dec. 12, 2006
Voya Diversified International Fund | Class W
Risk/Return:	rr_RiskReturnAbstract
Maximum sales charge (load) as a % of offering price	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum deferred sales charge as a % of purchase or sales price, whichever is less	rr_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	0.14%	[2]
Distribution and/or Shareholder Services (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.44%
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.91%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.49%	[3]
Waivers and Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	(0.41%)	[4]
Total Annual Fund Operating Expenses after Waivers and Reimbursements	rr_NetExpensesOverAssets	1.08%
1 Yr	rr_ExpenseExampleYear01	$ 110
3 Yrs	rr_ExpenseExampleYear03	414
5 Yrs	rr_ExpenseExampleYear05	758
10 Yrs	rr_ExpenseExampleYear10	1,730
1 Yr	rr_ExpenseExampleNoRedemptionYear01	110
3 Yrs	rr_ExpenseExampleNoRedemptionYear03	414
5 Yrs	rr_ExpenseExampleNoRedemptionYear05	758
10 Yrs	rr_ExpenseExampleNoRedemptionYear10	$ 1,730
1 Yr	rr_AverageAnnualReturnYear01	(0.99%)
5 Yrs	rr_AverageAnnualReturnYear05	1.73%
10 Yrs	rr_AverageAnnualReturnYear10	2.23%
Since Inception	rr_AverageAnnualReturnSinceInception
Inception Date	rr_AverageAnnualReturnInceptionDate	Feb. 12, 2008
Voya Diversified International Fund | After tax on distributions | Class A
Risk/Return:	rr_RiskReturnAbstract
1 Yr	rr_AverageAnnualReturnYear01	(7.10%)
5 Yrs	rr_AverageAnnualReturnYear05	(0.10%)
10 Yrs	rr_AverageAnnualReturnYear10	0.87%
Since Inception	rr_AverageAnnualReturnSinceInception
Voya Diversified International Fund | After tax on distributions with sale | Class A
Risk/Return:	rr_RiskReturnAbstract
1 Yr	rr_AverageAnnualReturnYear01	(3.63%)
5 Yrs	rr_AverageAnnualReturnYear05	0.25%
10 Yrs	rr_AverageAnnualReturnYear10	0.78%
Since Inception	rr_AverageAnnualReturnSinceInception
Voya Diversified International Fund | MSCI ACW Index℠ Ex-U.S. | Class A
Risk/Return:	rr_RiskReturnAbstract
1 Yr	rr_AverageAnnualReturnYear01	(5.66%)	[5]
5 Yrs	rr_AverageAnnualReturnYear05	1.06%	[5]
10 Yrs	rr_AverageAnnualReturnYear10	2.92%	[5]
Since Inception	rr_AverageAnnualReturnSinceInception		[5]
Voya Diversified International Fund | MSCI ACW Index℠ Ex-U.S. | Class B
Risk/Return:	rr_RiskReturnAbstract
1 Yr	rr_AverageAnnualReturnYear01	(5.66%)	[5]
5 Yrs	rr_AverageAnnualReturnYear05	1.06%	[5]
10 Yrs	rr_AverageAnnualReturnYear10	2.92%	[5]
Since Inception	rr_AverageAnnualReturnSinceInception		[5]
Voya Diversified International Fund | MSCI ACW Index℠ Ex-U.S. | Class C
Risk/Return:	rr_RiskReturnAbstract
1 Yr	rr_AverageAnnualReturnYear01	(5.66%)	[5]
5 Yrs	rr_AverageAnnualReturnYear05	1.06%	[5]
10 Yrs	rr_AverageAnnualReturnYear10	2.92%	[5]
Since Inception	rr_AverageAnnualReturnSinceInception		[5]
Voya Diversified International Fund | MSCI ACW Index℠ Ex-U.S. | Class I
Risk/Return:	rr_RiskReturnAbstract
1 Yr	rr_AverageAnnualReturnYear01	(5.66%)	[5]
5 Yrs	rr_AverageAnnualReturnYear05	1.06%	[5]
10 Yrs	rr_AverageAnnualReturnYear10	2.92%	[5]
Since Inception	rr_AverageAnnualReturnSinceInception		[5]
Voya Diversified International Fund | MSCI ACW Index℠ Ex-U.S. | Class O
Risk/Return:	rr_RiskReturnAbstract
1 Yr	rr_AverageAnnualReturnYear01	(5.66%)	[5]
5 Yrs	rr_AverageAnnualReturnYear05	1.06%	[5]
10 Yrs	rr_AverageAnnualReturnYear10		[5]
Since Inception	rr_AverageAnnualReturnSinceInception	(0.86%)	[5]
Voya Diversified International Fund | MSCI ACW Index℠ Ex-U.S. | Class R
Risk/Return:	rr_RiskReturnAbstract
1 Yr	rr_AverageAnnualReturnYear01	(5.66%)	[5]
5 Yrs	rr_AverageAnnualReturnYear05	1.06%	[5]
10 Yrs	rr_AverageAnnualReturnYear10		[5]
Since Inception	rr_AverageAnnualReturnSinceInception	0.77%	[5]
Voya Diversified International Fund | MSCI ACW Index℠ Ex-U.S. | Class W
Risk/Return:	rr_RiskReturnAbstract
1 Yr	rr_AverageAnnualReturnYear01	(5.66%)	[5]
5 Yrs	rr_AverageAnnualReturnYear05	1.06%	[5]
10 Yrs	rr_AverageAnnualReturnYear10	2.92%	[5]
Since Inception	rr_AverageAnnualReturnSinceInception		[5]

[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 million or more.

[2] The Fund's Management Fee structure is a "bifurcated fee" structure as follows: an annual rate of 0.10% of the Fund's average daily net assets invested in Underlying Funds within the Voya family of funds; and 0.40% of the Fund's average daily net assets invested in direct investments, which include, but are not limited to, a security issued by an investment company that is not part of the Voya family of funds, including exchange-traded funds, a security issued by a non-mutual fund issuer, such as an operating company, and derivative instruments. The portion of the management fee attributable to the advisory services is 0.09% and the portion of the management fee attributable to the administrative services is 0.05%.

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

[4] The adviser is contractually obligated to limit expenses to 1.58%, 2.33%, 2.33%, 1.33%, 1.58%, 1.83%, and 1.33% for Class A, Class B, Class C, Class I, Class O, Class R, and Class W shares, respectively, through March 1, 2018. This limitation is subject to possible recoupment by the adviser within 36 months of the waiver or reimbursement. In addition, the adviser is contractually obligated to further limit expenses to 1.33%, 2.08%, 2.08%, 1.08%, 1.33%, 1.58%, and 1.08% for Class A, Class B, Class C, Class I, Class O, Class R, and Class W shares, respectively, through March 1, 2017. The limitations do not extend to interest, taxes, investment-related costs, leverage expenses, and extraordinary expenses. Termination or modification of these obligations requires approval by the Fund's board.

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