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 transactions 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 Example, affect the Fund's performance.

During the most recent fiscal year, the Fund's portfolio turnover rate was 90% of the average value of its portfolio.

Portfolio Turnover, Rate

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90.00%

Expense Example [Heading]

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Expense Example $

Expense Example Narrative [Text Block]

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The 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. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example Closing [Text Block]

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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.

Strategy [Heading]

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PRINCIPAL INVESTMENT STRATEGIES

Strategy Narrative [Text Block]

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Under normal market conditions, the Fund invests at least 80% of its net assets (plus borrowings for investment purposes) in equity and equity-related securities of companies located in the Greater China region. The Fund will provide shareholders with at least 60 days' prior notice of any change in this investment policy. The sub-adviser ("Sub-Adviser") defines a company in the Greater China region as a company that: (i) is organized under the laws of, or with principal offices in, the Greater China region; (ii) has at least 50% of its assets in the Greater China region; (iii) derives 50% or more of its revenue from the Greater China region; or (iv) is principally traded in the Greater China region.

The Greater China region consists of China, Hong Kong and Taiwan. The equity securities and equity-related securities in which the Fund may invest include: common and preferred stocks and convertible securities; warrants; and convertible bonds.

The Fund may invest up to 10% of its assets in warrants, and up to 20% of its assets in fixed-income securities. Any fixed-income securities in which the Fund may invest shall have at least one investment-grade rating by either Standard and Poor's Ratings Services or Moody's Investors Service, Inc. If issues or issuers in the Fund get downgraded to below investment-grade, (on both scales) the investment will be sold as soon as reasonably possible. The Fund may invest in depositary receipts. The Fund may invest in derivative securities to seek to hedge against currency risk. Derivatives are securities whose value may be based on other securities, currencies, interest rates or indices. Derivatives include: futures and forward contracts; options on futures contracts, foreign currencies, securities, and stock indices; structured notes and indexed securities; and swaps, caps, floors and collars. Up to 15% of the Fund's net assets may be invested in illiquid securities, other restricted securities that are illiquid, and Rule 144A securities. The Fund may invest in initial public offerings. The Fund may invest in other investment companies, including exchange-traded funds, to the extent permitted under the Investment Company Act of 1940, as amended, and the rules, regulations and exemptive orders thereunder ("1940 Act").

The Sub-Adviser manages the Fund as a core equity product that is not constrained by a particular investment style or market capitalization. The Fund may invest in "growth" and "value" securities.

Many of the securities in which the Fund may invest are denominated in foreign currencies.

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 33¹/₃% of its assets.

Risk [Heading]

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PRINCIPAL RISKS

Risk Narrative [Text Block]

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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.

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 stocks could become worthless.

Convertible Securities Convertible securities are securities that are convertible into or exercisable for common stocks at a stated price or rate. Convertible securities are subject to the usual risks associated with debt securities, such as interest rate and credit risk. In addition, because convertible securities react to changes in the value of the stocks into which they convert, they are subject to market risk.

Credit Prices of bonds and other debt securities can fall if the issuer's actual or perceived financial health deteriorates, whether because of broad economic or issuer-specific reasons. In severe cases, the issuer could be late in paying interest or principal, or could fail to pay altogether.

Currency To the extent that the Fund invests directly in foreign currencies or in securities denominated in, or that trade in, foreign (non-U.S.) currencies, it is subject to the risk that those 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.

Focused Investing To the extent that the Fund invests a substantial portion of its assets in a particular industry, sector, market segment, or geographical area, its investments will be sensitive to developments in that industry, sector, market segment, or geographical area. The Fund assumes the risk that changing economic conditions, changing political or regulatory conditions, or natural and other disasters affecting the particular industry, sector, market segment, or geographical area in which the Fund focuses its investments could have a significant impact on its investment performance and could ultimately cause the Fund to underperform, or be more volatile than, other funds that invest more broadly.

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, and nationalization, expropriation or confiscatory taxation, foreign currency fluctuations, currency blockage, or political changes or diplomatic developments. Foreign investment risks typically are greater in developing and emerging markets than in developed markets.

Greater China Region Investments in China involve the risk of greater government control over the economy, political and legal uncertainties and currency fluctuations or blockage. Investments in securities of Chinese companies are subject to the volatility of the Chinese stock market and China's heavy dependence on exports, which may decrease, sometimes significantly, when the world economy weakens practices.

Initial Public Offerings Initial Public Offerings ("IPOs") and companies that have recently gone public have the potential to produce substantial gains for the Fund. However, there is no assurance that the Fund will have access to profitable IPOs or that IPOs in which the Fund invests will rise in value. Furthermore, the value of securities of newly public companies may decline in value shortly after the IPO. When the Fund's asset base is small, the impact of such investments on the Fund's return will be magnified. If the Fund's assets grow, it is likely that the effect of the Fund's investment in IPOs on the Fund's return will decline.

Interest Rate With bonds and other fixed rate debt securities, 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 security, and the longer its maturity or duration, the more sensitive it is likely to be to interest rate risk.

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 are volatile and are affected by the real or perceived impacts of such factors as economic conditions and political events. The stock market tends 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. From time to time, the stock market may not favor the growth- or value-oriented securities in which the Fund invests. Rather, the market could favor securities to which the Fund is not exposed or may not favor equities at all.

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, fully-valued 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, 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 decline significantly in market downturns.

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 that other investment company (including management fees, administration fees and custodial fees) in addition to the expenses of the Fund.

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.

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]

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You could lose money on an investment in the Fund.

Risk Not Insured Depository Institution [Text]

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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]

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PERFORMANCE INFORMATION

Performance Narrative [Text Block]

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The following information is intended to help you understand the risks of investing in the Fund. Because Class W shares of the Fund had not commenced operations as of the calendar year ended December 31, 2010, the following bar chart shows the changes in the Fund's Class A shares' performance from year to year, and the table compares the Fund's Class A shares' performance to the performance of a broad-based securities market index/indices for the same period. Class W shares and Class A shares of the Fund would have substantially similar performance because they invest in the same portfolio of securities. However, Class W shares' performance would be higher than Class A shares' performance because of the higher expenses paid by Class A shares. 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, but does not reflect the impact of sales charges. If it did, returns would be lower than those shown. The Fund's past performance (before and after taxes) is no guarantee of future results. For the most recent performance figures, go to www.INGFunds.com/literature or call 1-800-992-0180.

Performance Information Illustrates Variability of Returns [Text]

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Because Class W shares of the Fund had not commenced operations as of the calendar year ended December 31, 2010, the following bar chart shows the changes in the Fund's Class A shares' performance from year to year, and the table compares the Fund's Class A shares' performance to the performance of a broad-based securities market index/indices for the same period.

Performance Availability Phone [Text]

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1-800-992-0180

Performance Availability Website Address [Text]

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www.INGFunds.com/literature

Performance Past Does Not Indicate Future [Text]

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The Fund's past performance (before and after taxes) is no guarantee of future results.

Bar Chart [Heading]

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Calendar Year Total Returns Class A
(as of December 31 of each year)

Bar Chart Does Not Reflect Sales Loads [Text]

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The bar chart shows the performance of the Fund's Class A shares, but does not reflect the impact of sales charges.

Bar Chart Closing [Text Block]

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Best quarter: 2nd 2009, 32.86% and Worst quarter: 3rd 2008, (20.50)%

The Fund's Class A shares' year-to-date total return as of June 30, 2011: (0.96)%

Performance Table Heading

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Average Annual Total Returns%
(for the periods ended December 31, 2010)

Index No Deduction for Fees, Expenses, Taxes [Text]

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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

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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

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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 Explanation after Tax Higher

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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

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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.

ING Greater China Fund | MSCI ACGD IndexSM

Risk/Return:

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1 Yr

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13.24%

^[3]

5 Yrs

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12.75%

^[3]

Since Inception

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12.75%

^[3],[4]

[1]	Based on Class A shares' expenses adjusted for class specific differences.
[2]	The adviser is contractually obligated to limit expenses to 1.85% for Class W shares through March 1, 2012. There is no guarantee this obligation will continue after March 1, 2012. This obligation will continue only if the adviser elects to renew it. Any fees waived pursuant to this obligation shall not be eligible for recoupment. This obligation does not extend to interest, taxes, brokerage commissions, extraordinary expenses, and Acquired Fund Fees and Expenses.
[3]	The index returns include the reinvestment of dividends and distributions net of withholding taxes, but do not reflect fees, brokerage commissions or other expenses.
[4]	Reflects index performance since the date closest to the Class' inception for which data is available.