Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	Voya MUTUAL FUNDS
Prospectus Date	rr_ProspectusDate	Feb. 27, 2015
Class A, B, C, I, O, P, R, W Shares | Voya Global Bond Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	Voya Global Bond Fund  (formerly, ING Global Bond Fund)
Objective [Heading]	rr_ObjectiveHeading	INVESTMENT OBJECTIVE
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Fund seeks to maximize total return through a combination of current income and capital appreciation.
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 $100,000 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 92) or the Purchase, Exchange, and Redemption of Shares section of the Statement of Additional Information (page 134).
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, 2016
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 508% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	508.00%
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 $100,000 in Voya mutual funds.
Expense Breakpoint, Minimum Investment Required [Amount]	rr_ExpenseBreakpointMinimumInvestmentRequiredAmount	100,000
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 year of the three-, five-, and ten-year periods.
Strategy [Heading]	rr_StrategyHeading	PRINCIPAL INVESTMENT STRATEGIES
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	Under normal market conditions, the Fund invests at least 80% of its net assets (plus borrowings for investment purposes) in bonds of issuers in a number of different countries, which may include the United States. The Fund will provide shareholders with at least 60 days' prior written notice of any change in this investment policy. The Fund may invest in securities of issuers located in developed and emerging market countries. Securities may be denominated in foreign currencies or in the U.S. dollar. The Fund may hedge its exposure to securities denominated in foreign currencies. The Fund may also borrow money from banks and invest the proceeds of such loans in portfolio securities to the extent permitted under the Investment Company Act of 1940, as amended, and the rules, regulations, and exemptive orders thereunder ("1940 Act"). This investment technique is known as "leveraging." The Fund invests primarily in investment-grade securities which include, but are not limited to, corporate and government bonds which, at the time of investment, are rated investment-grade (at least BBB- by Standard & Poor's Ratings Services or Baa3 by Moody's Investors Service, Inc.) or have an equivalent rating by a nationally recognized statistical rating organization, or are of comparable quality if unrated. The Fund may also invest in preferred stocks, money market instruments, municipal bonds, commercial and residential mortgage-related securities, asset-backed securities, other securitized and structured debt products, private placements, sovereign debt, and other investment companies. The Fund may also invest its assets in bank loans and in a combination of floating rate secured loans ("Senior Loans") and shares of Voya Prime Rate Trust, a closed-end investment company that invests in Senior Loans. Although the Fund may invest a portion of its assets in high-yield debt securities rated below investment-grade (commonly referred to as "junk bonds"), the Fund will seek to maintain a minimum weighted average portfolio quality rating of at least investment-grade. The dollar-weighted average portfolio duration of the Fund will generally range between two and nine years. Duration is the most commonly used measure of risk in fixed-income investments as it incorporates multiple features of the fixed-income instrument (e.g., yield, coupon, maturity, etc.) into one number. Duration is a measure of sensitivity of the price of a fixed-income instrument to a change in interest rates. Duration is a weighted average of the times that interest payments and the final return of principal are received. The weights are the amounts of the payments discounted by the yield-to-maturity of the fixed-income instrument. Duration is expressed as a number of years. The bigger the duration number, the greater the interest-rate risk or reward for the fixed-income instrument prices. For example, the price of a bond with an average duration of five years would be expected to fall approximately 5% if interest rates rose by one percentage point. Conversely, the price of a bond with an average duration of five years would be expected to rise approximately 5% if interest rates drop by one percentage point. The Fund may use derivatives, including futures, swaps (including interest rate swaps, total return swaps, and credit default swaps), and options, among others, to seek to enhance return, to hedge some of the risks of its investments in fixed-income securities, or as a substitute for a position in an underlying asset. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls and reverse repurchase agreements). The Fund may invest in other investment companies, including exchange-traded funds, to the extent permitted under the 1940 Act. The investment process focuses on allocating assets among various sectors of the global bond markets and buying bonds at a discount to their intrinsic value. The sub-adviser ("Sub-Adviser") utilizes proprietary quantitative techniques to identify bonds or sectors that are cheap relative to other bonds or sectors based on their historical price relationships. Teams of asset specialists use this relative value analysis to guide them in the security selection process. The Fund is non-diversified, which means it may invest a significant portion of its assets in a single issuer. The Sub-Adviser may sell securities for a variety of reasons, such as to secure gains, limit losses, or redeploy assets into opportunities believed to be more promising, among others. 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	PRINCIPAL RISKS
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. Call    During periods of falling interest rates, a bond issuer may "call" or repay its high-yielding bond before the bond's maturity date. If forced to invest the unanticipated proceeds at lower interest rates, the Fund would experience a decline in income. Company    The price of a given company's stock could decline or underperform for many reasons including, among others, poor management, financial problems, or business challenges. If a company declares bankruptcy or becomes insolvent, its stock could become worthless. Credit    Prices of bonds and other debt instruments can fall if the issuer's actual or perceived financial health deteriorates, whether because of broad economic or issuer-specific reasons. In certain cases, the issuer could be late in paying interest or principal, or could fail to pay altogether. Lower quality securities (including securities that have fallen below investment-grade and are classified as "junk bonds") have greater credit risk and liquidity risk than higher quality (investment-grade) securities, and their issuers' long-term ability to make payments is considered speculative. Prices of lower quality bonds or other debt instruments are also more volatile, are more sensitive to negative news about the economy or the issuer, and have greater liquidity and price volatility risk. Credit Default Swaps The Fund may enter into credit default swaps, either as a buyer or a seller of the swap. As a buyer of the swap, the Fund pays a fee to protect against the risk that a security held by the Fund will default. As a seller of the swap, the Fund receives payment(s) in return for its 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, correlation, valuation, liquidity and leveraging risks. Certain standardized swaps are subject to mandatory central clearing. Central clearing is expected to reduce counterparty credit risk and increase liquidity, but central clearing does not make swap transactions risk free. 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. 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 interest rates and liquidity risk. The use of certain derivatives may also have a leveraging effect which may increase the volatility of the Fund and reduce its returns. Derivatives may not perform as expected, so the Fund may not realize the intended benefits. When used for hedging, the change in value of a derivative may not correlate as expected with the currency, security or other risk being hedged. 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. 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. High-Yield Securities    Investments rated below investment-grade (or of similar quality if unrated) are known as "high-yield securities" or "junk bonds." High-yield securities are subject to greater levels of credit and liquidity risks. High-yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments. Interest in Loans    The value and the income streams of interests in loans (including participation interests in lease financings and assignments in secured variable or floating rate loans) will decline if borrowers delay payments or fail to pay altogether. A large rise in interest rates could increase this risk. Although loans are generally fully collateralized when purchased, the collateral may become illiquid or decline in value. Many loans themselves carry liquidity and valuation risks. Interest Rate    With bonds and other fixed rate debt instruments, a rise in interest rates generally causes values to fall; conversely, values generally rise as interest rates fall. The higher the credit quality of the instrument, and the longer its maturity or duration, the more sensitive it is likely to be to interest rate risk. In the case of inverse securities, the interest rate generally will decrease when the market rate of interest to which the inverse security is indexed increases. As of the date of this Prospectus, interest rates in the United States are at or near historic lows, which may increase the Fund's exposure to risks associated with rising interest rates. Rising interest rates could have unpredictable effects on the markets and may expose fixed-income and related markets to heightened volatility. For fixed-income securities, an increase in interest rates may lead to increased redemptions and increased portfolio turnover, which could reduce liquidity for certain Fund investments, adversely affect values, and increase a Fund's costs. If dealer capacity in fixed-income markets is insufficient for market conditions, it may further inhibit liquidity and increase volatility in the fixed-income markets. Investment Model    The manager's proprietary model may not adequately allow for existing or unforeseen market factors or the interplay between such factors. Funds that are actively managed, in whole or in part, according to a quantitative investment model can perform differently from the market as a whole based on the investment model and the factors used in the analysis, the weight placed on each factor, changes from the factors' historical trends, and technical issues in the construction and implementation of the investment models (including, for example, data problems and/or software issues). There is no guarantee that the use of these investment models will result in effective investment decisions for the Fund. Issuer Non-Diversification    The Fund is classified as a "non-diversified" investment company and, therefore, is subject to the risks of focusing investments in a small number of issuers, industries or foreign currencies, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Leverage    Certain transactions and investment strategies may give rise to leverage. Such transactions and investment strategies, include, but are not limited to: borrowing, dollar rolls, reverse repurchase agreements, loans of portfolio securities and the use of when-issued, delayed-delivery or forward-commitment transactions. The use of certain derivatives may also increase leveraging risk. The use of leverage may increase the Fund's expenses and increase the impact of the Fund's other risks. 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, and the security could have the effect of decreasing the overall level of the Fund's liquidity. Further, the lack of an established secondary market may make it more difficult to value illiquid securities, which could vary from the amount the Fund could realize upon disposition. The Fund may make investments that become less liquid in response to market developments or adverse investor perception. 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 and are affected by the real or perceived impacts of such factors as economic conditions 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 Fund costs and impair the ability of the Fund to achieve its investment objectives. Mortgage- and/or Asset-Backed Securities Defaults on, or low credit quality or liquidity of the underlying assets of the asset-backed (including mortgage-backed) securities held by the Fund may impair the value of the securities. There may be limitations on the enforceability of any security interest granted with respect to those underlying assets. These securities also present a higher degree of prepayment and extension risk and interest rate risk than do other types of debt instruments. Municipal Obligations    The municipal market in which the Fund invests is volatile and can be significantly affected by adverse tax, legislative, or political changes and the financial condition of the issuers of municipal securities. Other Investment Companies    The main risk of investing in other investment companies, including exchange-traded funds, is the risk that the value of the securities underlying an investment company might decrease. Because the Fund may invest in other investment companies, 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. Prepayment and Extension    Prepayment risk is the risk that principal on mortgages or other loan obligations underlying a security may be repaid prior to the stated maturity date, which may reduce the market value of the security and the anticipated yield-to-maturity. Extension risk is the risk that an issuer will exercise its right to repay principal on an obligation held by the Fund later than expected, which may decrease the value of the obligation and prevent the Fund from investing expected repayment proceeds in securities paying yields higher than the yields paid by the securities that were expected to be repaid. Securities Lending    Securities lending involves two primary risks: "investment risk" and "borrower default risk." 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 in a timely manner. Sovereign Debt    These securities are issued or guaranteed by foreign government entities. Investments in sovereign debt are subject to the risk that a government entity may delay payment, restructure its debt, or refuse to pay interest or repay principal on its sovereign debt. Some of these reasons may include cash flow problems, insufficient foreign currency reserves, political considerations, the relative size of its debt position to its economy or its failure to put in place economic reforms required by the International Monetary Fund or other multilateral agencies. If a government entity defaults, it may ask for more time in which to pay or for further loans. There is no legal process for collecting sovereign debts that a government does not pay or bankruptcy proceeding by which all or part of sovereign debt that a government entity has not repaid may be collected. 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 Nondiversified Status [Text]	rr_RiskNondiversifiedStatus	Issuer Non-Diversification    The Fund is classified as a "non-diversified" investment company and, therefore, is subject to the risks of focusing investments in a small number of issuers, industries or foreign currencies, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be.
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 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. Because Class P shares of the Fund had not commenced operations as of the calendar year ended December 31, 2014, no performance information for Class P shares is provided below.
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 One Year or Less [Text]	rr_PerformanceOneYearOrLess	Class P shares of the Fund had not commenced operations as of the calendar year ended December 31, 2014
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: 4th, 2008, 9.16% and Worst quarter: 2nd, 2013, -4.77%
Performance Table Heading	rr_PerformanceTableHeading	Average Annual Total Returns % (for the periods ended December 31, 2014)
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 do not reflect deductions for fees, expenses, or taxes.
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-deferred 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-deferred 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.
Performance Table Footnotes	rr_PerformanceTableFootnotesTextBlock	Maximum sales charge was lowered from 4.75% to 2.50% effective July 31, 2006. Return calculations with a starting date prior to July 31, 2006 are based on a 4.75% sales charge.
Class A, B, C, I, O, P, R, W Shares | Voya Global Bond Fund | Class A
Risk/Return:	rr_RiskReturnAbstract
Maximum sales charge (load) as a % of offering price	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	2.50%
Maximum deferred sales charge as a % of purchase or sales price, whichever is less	rr_MaximumDeferredSalesChargeOverOther	none	[1]
Management Fees	rr_ManagementFeesOverAssets	0.40%
Distribution and/or Shareholder Services (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.25%
Administrative Services Fees	rr_Component1OtherExpensesOverAssets	0.10%
Other Expenses	rr_OtherExpensesOverAssets	0.23%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.98%
Waivers and Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	(0.08%)	[2]
Total Annual Fund Operating Expenses after Waivers and Reimbursements	rr_NetExpensesOverAssets	0.90%
1 Yr	rr_ExpenseExampleYear01	340
3 Yrs	rr_ExpenseExampleYear03	547
5 Yrs	rr_ExpenseExampleYear05	771
10 Yrs	rr_ExpenseExampleYear10	1,414
1 Yr	rr_ExpenseExampleNoRedemptionYear01	340
3 Yrs	rr_ExpenseExampleNoRedemptionYear03	547
5 Yrs	rr_ExpenseExampleNoRedemptionYear05	771
10 Yrs	rr_ExpenseExampleNoRedemptionYear10	1,414
2005	rr_AnnualReturn2005
2006	rr_AnnualReturn2006
2007	rr_AnnualReturn2007	11.42%
2008	rr_AnnualReturn2008	11.24%
2009	rr_AnnualReturn2009	12.25%
2010	rr_AnnualReturn2010	4.31%
2011	rr_AnnualReturn2011	3.39%
2012	rr_AnnualReturn2012	7.27%
2013	rr_AnnualReturn2013	(3.24%)
2014	rr_AnnualReturn2014	0.07%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	Best quarter:
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Dec. 31, 2008
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	9.16%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	Worst quarter:
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Jun. 30, 2013
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(4.77%)
1 Yr	rr_AverageAnnualReturnYear01	(2.44%)
5 Yrs	rr_AverageAnnualReturnYear05	1.78%
10 Yrs	rr_AverageAnnualReturnYear10
Since Inception	rr_AverageAnnualReturnSinceInception	5.26%
Inception Date	rr_AverageAnnualReturnInceptionDate	Jun. 30, 2006
Class A, B, C, I, O, P, R, W Shares | Voya Global Bond 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	0.40%
Distribution and/or Shareholder Services (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	1.00%
Administrative Services Fees	rr_Component1OtherExpensesOverAssets	0.10%
Other Expenses	rr_OtherExpensesOverAssets	0.23%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.73%
Waivers and Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	(0.08%)	[2]
Total Annual Fund Operating Expenses after Waivers and Reimbursements	rr_NetExpensesOverAssets	1.65%
1 Yr	rr_ExpenseExampleYear01	668
3 Yrs	rr_ExpenseExampleYear03	837
5 Yrs	rr_ExpenseExampleYear05	1,131
10 Yrs	rr_ExpenseExampleYear10	1,836
1 Yr	rr_ExpenseExampleNoRedemptionYear01	168
3 Yrs	rr_ExpenseExampleNoRedemptionYear03	537
5 Yrs	rr_ExpenseExampleNoRedemptionYear05	931
10 Yrs	rr_ExpenseExampleNoRedemptionYear10	1,836
1 Yr	rr_AverageAnnualReturnYear01	(5.50%)
5 Yrs	rr_AverageAnnualReturnYear05	1.22%
10 Yrs	rr_AverageAnnualReturnYear10
Since Inception	rr_AverageAnnualReturnSinceInception	5.07%
Inception Date	rr_AverageAnnualReturnInceptionDate	Jun. 30, 2006
Class A, B, C, I, O, P, R, W Shares | Voya Global Bond 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	0.40%
Distribution and/or Shareholder Services (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	1.00%
Administrative Services Fees	rr_Component1OtherExpensesOverAssets	0.10%
Other Expenses	rr_OtherExpensesOverAssets	0.23%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.73%
Waivers and Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	(0.08%)	[2]
Total Annual Fund Operating Expenses after Waivers and Reimbursements	rr_NetExpensesOverAssets	1.65%
1 Yr	rr_ExpenseExampleYear01	268
3 Yrs	rr_ExpenseExampleYear03	537
5 Yrs	rr_ExpenseExampleYear05	931
10 Yrs	rr_ExpenseExampleYear10	2,034
1 Yr	rr_ExpenseExampleNoRedemptionYear01	168
3 Yrs	rr_ExpenseExampleNoRedemptionYear03	537
5 Yrs	rr_ExpenseExampleNoRedemptionYear05	931
10 Yrs	rr_ExpenseExampleNoRedemptionYear10	2,034
1 Yr	rr_AverageAnnualReturnYear01	(1.66%)
5 Yrs	rr_AverageAnnualReturnYear05	1.55%
10 Yrs	rr_AverageAnnualReturnYear10
Since Inception	rr_AverageAnnualReturnSinceInception	5.09%
Inception Date	rr_AverageAnnualReturnInceptionDate	Jun. 30, 2006
Class A, B, C, I, O, P, R, W Shares | Voya Global Bond 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	0.40%
Distribution and/or Shareholder Services (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Administrative Services Fees	rr_Component1OtherExpensesOverAssets	0.10%
Other Expenses	rr_OtherExpensesOverAssets	0.13%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.63%
Waivers and Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	none	[2]
Total Annual Fund Operating Expenses after Waivers and Reimbursements	rr_NetExpensesOverAssets	0.63%
1 Yr	rr_ExpenseExampleYear01	64
3 Yrs	rr_ExpenseExampleYear03	202
5 Yrs	rr_ExpenseExampleYear05	351
10 Yrs	rr_ExpenseExampleYear10	786
1 Yr	rr_ExpenseExampleNoRedemptionYear01	64
3 Yrs	rr_ExpenseExampleNoRedemptionYear03	202
5 Yrs	rr_ExpenseExampleNoRedemptionYear05	351
10 Yrs	rr_ExpenseExampleNoRedemptionYear10	786
1 Yr	rr_AverageAnnualReturnYear01	0.27%
5 Yrs	rr_AverageAnnualReturnYear05	2.60%
10 Yrs	rr_AverageAnnualReturnYear10
Since Inception	rr_AverageAnnualReturnSinceInception	6.24%
Inception Date	rr_AverageAnnualReturnInceptionDate	Jun. 30, 2006
Class A, B, C, I, O, P, R, W Shares | Voya Global Bond 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	0.40%
Distribution and/or Shareholder Services (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.25%
Administrative Services Fees	rr_Component1OtherExpensesOverAssets	0.10%
Other Expenses	rr_OtherExpensesOverAssets	0.23%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.98%
Waivers and Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	(0.08%)	[2]
Total Annual Fund Operating Expenses after Waivers and Reimbursements	rr_NetExpensesOverAssets	0.90%
1 Yr	rr_ExpenseExampleYear01	92
3 Yrs	rr_ExpenseExampleYear03	304
5 Yrs	rr_ExpenseExampleYear05	534
10 Yrs	rr_ExpenseExampleYear10	1,194
1 Yr	rr_ExpenseExampleNoRedemptionYear01	92
3 Yrs	rr_ExpenseExampleNoRedemptionYear03	304
5 Yrs	rr_ExpenseExampleNoRedemptionYear05	534
10 Yrs	rr_ExpenseExampleNoRedemptionYear10	1,194
1 Yr	rr_AverageAnnualReturnYear01	(0.01%)
5 Yrs	rr_AverageAnnualReturnYear05	2.29%
10 Yrs	rr_AverageAnnualReturnYear10
Since Inception	rr_AverageAnnualReturnSinceInception	4.57%
Inception Date	rr_AverageAnnualReturnInceptionDate	Jun. 04, 2008
Class A, B, C, I, O, P, R, W Shares | Voya Global Bond Fund | Class P
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	0.40%	[3]
Distribution and/or Shareholder Services (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none	[3]
Administrative Services Fees	rr_Component1OtherExpensesOverAssets	0.10%	[3]
Other Expenses	rr_OtherExpensesOverAssets	0.13%	[3]
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.63%	[3]
Waivers and Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	(0.48%)	[2],[3]
Total Annual Fund Operating Expenses after Waivers and Reimbursements	rr_NetExpensesOverAssets	0.15%	[3]
1 Yr	rr_ExpenseExampleYear01	15
3 Yrs	rr_ExpenseExampleYear03	153
5 Yrs	rr_ExpenseExampleYear05	304
10 Yrs	rr_ExpenseExampleYear10	741
1 Yr	rr_ExpenseExampleNoRedemptionYear01	15
3 Yrs	rr_ExpenseExampleNoRedemptionYear03	153
5 Yrs	rr_ExpenseExampleNoRedemptionYear05	304
10 Yrs	rr_ExpenseExampleNoRedemptionYear10	741
Class A, B, C, I, O, P, R, W Shares | Voya Global Bond 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	0.40%
Distribution and/or Shareholder Services (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.50%
Administrative Services Fees	rr_Component1OtherExpensesOverAssets	0.10%
Other Expenses	rr_OtherExpensesOverAssets	0.23%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.23%
Waivers and Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	(0.08%)	[2]
Total Annual Fund Operating Expenses after Waivers and Reimbursements	rr_NetExpensesOverAssets	1.15%
1 Yr	rr_ExpenseExampleYear01	117
3 Yrs	rr_ExpenseExampleYear03	382
5 Yrs	rr_ExpenseExampleYear05	668
10 Yrs	rr_ExpenseExampleYear10	1,482
1 Yr	rr_ExpenseExampleNoRedemptionYear01	117
3 Yrs	rr_ExpenseExampleNoRedemptionYear03	382
5 Yrs	rr_ExpenseExampleNoRedemptionYear05	668
10 Yrs	rr_ExpenseExampleNoRedemptionYear10	1,482
1 Yr	rr_AverageAnnualReturnYear01	(0.23%)
5 Yrs	rr_AverageAnnualReturnYear05
10 Yrs	rr_AverageAnnualReturnYear10
Since Inception	rr_AverageAnnualReturnSinceInception	0.20%
Inception Date	rr_AverageAnnualReturnInceptionDate	Aug. 05, 2011
Class A, B, C, I, O, P, R, W Shares | Voya Global Bond 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	0.40%
Distribution and/or Shareholder Services (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Administrative Services Fees	rr_Component1OtherExpensesOverAssets	0.10%
Other Expenses	rr_OtherExpensesOverAssets	0.23%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.73%
Waivers and Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	(0.08%)	[2]
Total Annual Fund Operating Expenses after Waivers and Reimbursements	rr_NetExpensesOverAssets	0.65%
1 Yr	rr_ExpenseExampleYear01	66
3 Yrs	rr_ExpenseExampleYear03	225
5 Yrs	rr_ExpenseExampleYear05	398
10 Yrs	rr_ExpenseExampleYear10	899
1 Yr	rr_ExpenseExampleNoRedemptionYear01	66
3 Yrs	rr_ExpenseExampleNoRedemptionYear03	225
5 Yrs	rr_ExpenseExampleNoRedemptionYear05	398
10 Yrs	rr_ExpenseExampleNoRedemptionYear10	899
1 Yr	rr_AverageAnnualReturnYear01	0.34%
5 Yrs	rr_AverageAnnualReturnYear05	2.55%
10 Yrs	rr_AverageAnnualReturnYear10
Since Inception	rr_AverageAnnualReturnSinceInception	4.16%
Inception Date	rr_AverageAnnualReturnInceptionDate	Jun. 01, 2009
Class A, B, C, I, O, P, R, W Shares | Voya Global Bond Fund | After tax on distributions | Class A
Risk/Return:	rr_RiskReturnAbstract
1 Yr	rr_AverageAnnualReturnYear01	(2.72%)
5 Yrs	rr_AverageAnnualReturnYear05	0.59%
10 Yrs	rr_AverageAnnualReturnYear10
Since Inception	rr_AverageAnnualReturnSinceInception	3.73%
Class A, B, C, I, O, P, R, W Shares | Voya Global Bond Fund | After tax on distributions with sale | Class A
Risk/Return:	rr_RiskReturnAbstract
1 Yr	rr_AverageAnnualReturnYear01	(1.38%)
5 Yrs	rr_AverageAnnualReturnYear05	0.86%
10 Yrs	rr_AverageAnnualReturnYear10
Since Inception	rr_AverageAnnualReturnSinceInception	3.49%
Class A, B, C, I, O, P, R, W Shares | Voya Global Bond Fund | BGA Index | Class A
Risk/Return:	rr_RiskReturnAbstract
1 Yr	rr_AverageAnnualReturnYear01	0.59%	[4]
5 Yrs	rr_AverageAnnualReturnYear05	2.65%	[4]
10 Yrs	rr_AverageAnnualReturnYear10		[4]
Since Inception	rr_AverageAnnualReturnSinceInception	4.53%	[4]
Class A, B, C, I, O, P, R, W Shares | Voya Global Bond Fund | BGA Index | Class B
Risk/Return:	rr_RiskReturnAbstract
1 Yr	rr_AverageAnnualReturnYear01	0.59%	[4]
5 Yrs	rr_AverageAnnualReturnYear05	2.65%	[4]
10 Yrs	rr_AverageAnnualReturnYear10		[4]
Since Inception	rr_AverageAnnualReturnSinceInception	4.53%	[4]
Class A, B, C, I, O, P, R, W Shares | Voya Global Bond Fund | BGA Index | Class C
Risk/Return:	rr_RiskReturnAbstract
1 Yr	rr_AverageAnnualReturnYear01	0.59%	[4]
5 Yrs	rr_AverageAnnualReturnYear05	2.65%	[4]
10 Yrs	rr_AverageAnnualReturnYear10		[4]
Since Inception	rr_AverageAnnualReturnSinceInception	4.53%	[4]
Class A, B, C, I, O, P, R, W Shares | Voya Global Bond Fund | BGA Index | Class I
Risk/Return:	rr_RiskReturnAbstract
1 Yr	rr_AverageAnnualReturnYear01	0.59%	[4]
5 Yrs	rr_AverageAnnualReturnYear05	2.65%	[4]
10 Yrs	rr_AverageAnnualReturnYear10		[4]
Since Inception	rr_AverageAnnualReturnSinceInception	4.53%	[4]
Class A, B, C, I, O, P, R, W Shares | Voya Global Bond Fund | BGA Index | Class O
Risk/Return:	rr_RiskReturnAbstract
1 Yr	rr_AverageAnnualReturnYear01	0.59%	[4]
5 Yrs	rr_AverageAnnualReturnYear05	2.65%	[4]
10 Yrs	rr_AverageAnnualReturnYear10		[4]
Since Inception	rr_AverageAnnualReturnSinceInception	3.26%	[4]
Class A, B, C, I, O, P, R, W Shares | Voya Global Bond Fund | BGA Index | Class R
Risk/Return:	rr_RiskReturnAbstract
1 Yr	rr_AverageAnnualReturnYear01	0.59%	[4]
5 Yrs	rr_AverageAnnualReturnYear05		[4]
10 Yrs	rr_AverageAnnualReturnYear10		[4]
Since Inception	rr_AverageAnnualReturnSinceInception	0.46%	[4]
Class A, B, C, I, O, P, R, W Shares | Voya Global Bond Fund | BGA Index | Class W
Risk/Return:	rr_RiskReturnAbstract
1 Yr	rr_AverageAnnualReturnYear01	0.59%	[4]
5 Yrs	rr_AverageAnnualReturnYear05	2.65%	[4]
10 Yrs	rr_AverageAnnualReturnYear10		[4]
Since Inception	rr_AverageAnnualReturnSinceInception	3.48%	[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 million or more.

[2] The adviser is contractually obligated to limit expenses to 0.90%, 1.65%, 1.65%, 0.65%, 0.90%, 0.15%, 1.15%, and 0.65% for Class A, Class B, Class C, Class I, Class O, Class P, Class R, and Class W shares, respectively, through March 1, 2016. The limitation does not extend to interest, taxes, brokerage commissions, extraordinary expenses, and Acquired Fund Fees and Expenses. 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 waive its management fee for Class P shares through March 1, 2016. The administrator is contractually obligated to waive its administrative services fee for Class P shares through March 1, 2016. Termination or modification of these obligations requires approval by the Fund's board.

[3] Based on Class A shares' expenses adjusted for contractual differences.

[4] The index returns do not reflect deductions for fees, expenses, or taxes.