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Label Element Value
Dynamic Total Return Fund  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading Fund Summary
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The fund seeks total return.
Expense [Heading] rr_ExpenseHeading Fees and Expenses
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes 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 the fund or certain other funds in the Dreyfus Family of Funds. More information about these and other discounts is available from your financial professional and in the Shareholder Guide section beginning on page 17 of the prospectus and in the How to Buy Shares section and the Additional Information About How to Buy Shares section beginning on page II-1 and page III-1, respectively, of the fund's Statement of Additional Information.
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 that you pay each year as a percentage of the value of your investment)
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 may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the fund's performance. During the most recent fiscal year, the fund's portfolio turnover rate was 165.55% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 165.55%
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 the fund or certain other funds in the Dreyfus Family of Funds.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount $ 50,000
Expenses Restated to Reflect Current [Text] rr_ExpensesRestatedToReflectCurrent Other expenses and Total annual fund operating expenses have been restated from those used or reflected in the Financial Highlights to include the estimated fees and expenses of the fund's subsidiary.
Expense Example [Heading] rr_ExpenseExampleHeading Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

The Example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has 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, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption You would pay the following expenses if you did not redeem your shares:
Strategy [Heading] rr_StrategyHeading Principal Investment Strategy
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

To pursue its goal, the fund normally invests in instruments that provide investment exposure to global equity, bond, currency and commodity markets, and in fixed-income securities. The fund may invest in instruments that provide economic exposure to developed and, to a limited extent, emerging market issuers. The fund may invest up to 30% of its net assets in emerging market issuers and considers emerging market countries to be those included in the Morgan Stanley Capital International Emerging Markets Index. The fund will seek to achieve investment exposure to global equity, bond, currency and commodity markets primarily through long and short positions in futures, options, forward contracts, swap agreements or exchange-traded funds (ETFs), and normally will use economic leverage as part of its investment strategy. The fund also may invest in fixed-income securities, such as bonds, notes (including structured notes) and money market instruments, and including foreign government obligations and securities of supranational entities, to provide exposure to bond markets and for liquidity and income, as well as hold cash. The fund may invest in bonds and other fixed-income securities of any maturity or duration. A bond's maturity is the length of time until the principal must be fully repaid with interest. Average effective portfolio maturity is an average of the maturities of bonds held by the fund directly and the bonds underlying derivative instruments entered into by the fund, if any, adjusted to reflect provisions or market conditions that may cause a bond's principal to be repaid earlier than at its stated maturity. Duration is an indication of an investment's "interest rate risk," or how sensitive a bond or the fund's portfolio may be to changes in interest rates. The fund invests principally in bonds and other fixed-income securities rated investment grade, and may invest in, or otherwise have investment exposure to the securities of companies of any market capitalization.


The fund's portfolio managers apply a systematic analytical investment approach designed to identify and exploit relative misvaluation opportunities across and within global capital markets. Active investment decisions to dynamically shift between long or short positions in individual country, equity, bond, currency and commodity markets, as well as allocations to cash, are driven by this systematic investment process and seek to capitalize on opportunities within and among the capital markets of the world. The fund's portfolio managers have considerable latitude in allocating the fund's assets and in selecting derivative instruments and securities to implement the fund's investment approach, and there is no limitation or requirement as to the amount of fund assets to be invested in any one asset class.


The portfolio managers update, monitor and follow buy or sell recommendations from the proprietary investment models of Mellon Capital Management Corporation, the fund's sub-investment adviser. The models can recommend selling a security if the relative attractiveness deteriorates or its valuation becomes excessive or risk associated with the security increases significantly. The model also may recommend selling a security if an event occurs that contradicts the models' rationale for owning it, such as deterioration in the issuer's fundamentals. In addition, the portfolio managers may sell a security if better investment opportunities emerge elsewhere. For allocation among equity markets, the portfolio managers employ a bottom-up valuation approach using proprietary models to derive market level expected returns. For allocation among bond markets, the portfolio managers use proprietary models to identify temporary mispricings among global bond markets. The portfolio managers evaluate currencies on a relative valuation basis and overweight exposure to currencies that are undervalued and underweight exposure to currencies that are overvalued based on real interest rates, purchasing power parity, and other proprietary measures. The portfolio managers seek to identify opportunities in commodity markets by measuring and evaluating inventory and term structure, hedging and speculative activity as well as momentum. The investment process combines fundamental and momentum signals in a quantitative framework.


The fund will use to a significant degree derivative instruments, which may include principally options, futures and options on futures (including those relating to securities, foreign currencies, indices and interest rates), forward contracts (including foreign currency forward contracts), swaps (including total return swaps), options on swaps and other derivative instruments (including commodity-linked instruments, such as structured notes), as a substitute for investing directly in equities, bonds, currencies or commodities in connection with its investment strategy. The fund also may use such derivatives as part of a hedging strategy or for other purposes related to the management of the fund. Derivatives may be exchange-traded or over-the-counter. When the fund enters into derivatives transactions, it may be required to segregate liquid assets or enter into offsetting positions, in accordance with applicable regulations.


The fund also may gain investment exposure to global commodity markets through investments in a wholly-owned and controlled subsidiary of the fund that principally invests directly in commodity-related instruments, including futures and options contracts, swap agreements and other derivatives that provide exposure to the commodity markets. The subsidiary has the same investment objective, investment adviser and sub-investment adviser as the fund.

Risk [Heading] rr_RiskHeading Principal Risks
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

An investment in the fund is not a bank deposit. It is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency. It is not a complete investment program. The fund's share price fluctuates, sometimes dramatically, which means you could lose money.


· Allocation risk. The ability of the fund to achieve its investment goal depends, in part, on the ability of the fund's portfolio managers to allocate effectively the fund's assets among the various asset classes, such as equities, bonds, currencies, commodities and cash. There can be no assurance that the actual allocations will be effective in achieving the fund's investment goal.


· Correlation risk. Because the fund allocates its investments among different asset classes, the fund is subject to correlation risk. Although the prices of equity securities and fixed-income securities, as well as other asset classes, often rise and fall at different times so that a fall in the price of one may be offset by a rise in the price of the other, in down markets the prices of these securities and asset classes can also fall in tandem.


· Risks of stock investing. Stocks generally fluctuate more in value than bonds and may decline significantly over short time periods. There is the chance that stock prices overall will decline because stock markets tend to move in cycles, with periods of rising prices and falling prices. The market value of a stock may decline due to general market conditions or because of factors that affect the particular company or the company's industry.


· Fixed-income market risk. The market value of a fixed-income security may decline due to general market conditions that are not specifically related to a particular company, such as real or perceived adverse economic conditions, changes in the outlook for corporate earnings, changes in interest or currency rates or adverse investor sentiment generally. The fixed-income securities market can be susceptible to increases in volatility and decreases in liquidity. Liquidity can decline unpredictably in response to overall economic conditions or credit tightening. Increases in volatility and decreases in liquidity may be caused by a rise in interest rates (or the expectation of a rise in interest rates), which currently are at or near historic lows in the United States and in other countries. An unexpected increase in fund redemption requests, including requests from shareholders who may own a significant percentage of the fund's shares, which may be triggered by market turmoil or an increase in interest rates, could cause the fund to sell its holdings at a loss or at undesirable prices and adversely affect the fund's share price and increase the fund's liquidity risk, fund expenses and/or taxable distributions.


· Credit risk. Failure of an issuer of a security to make timely interest or principal payments when due, or a decline or perception of a decline in the credit quality of the security, can cause the security's price to fall. The lower a security's credit rating, the greater the chance that the issuer of the security will default or fail to meet its payment obligations.


· Interest rate risk. Prices of bonds and other fixed rate fixed-income securities tend to move inversely with changes in interest rates. Typically, a rise in rates will adversely affect fixed-income securities and, accordingly, will cause the value of the fund's investments in these securities to decline. During periods of very low interest rates, which occur from time to time due to market forces or actions of governments and/or their central banks, including the Board of Governors of the Federal Reserve System in the U.S., the fund may be subject to a greater risk of principal decline from rising interest rates. When interest rates fall, the fund's investments in new securities may be at lower yields and may reduce the fund's income. The magnitude of these fluctuations in the market price of fixed-income securities is generally greater for securities with longer effective maturities and durations because such instruments do not mature, reset interest rates or become callable for longer periods of time. The change in the value of a fixed-income security or portfolio can be approximated by multiplying its duration by a change in interest rates. For example, the market price of a fixed-income security with a duration of three years would be expected to decline 3% if interest rates rose 1%. Conversely, the market price of the same security would be expected to increase 3% if interest rates fell 1%. Risks associated with rising interest rates are heightened given that interest rates in the United States and other countries currently are at or near historic lows.


· Foreign investment risk. To the extent the fund invests in foreign securities, the fund's performance will be influenced by political, social and economic factors affecting investments in foreign issuers. Special risks associated with investments in foreign issuers include exposure to currency fluctuations, less liquidity, less developed or less efficient trading markets, lack of comprehensive company information, political and economic instability and differing auditing and legal standards. Investments denominated in foreign currencies are subject to the risk that such currencies will decline in value relative to the U.S. dollar and affect the value of these investments held by the fund. To the extent the fund's investments are focused in one or a limited number of foreign countries, the fund's performance could be more volatile than that of more geographically diversified funds.


· Emerging market risk. The securities of issuers located or doing substantial business in emerging market countries tend to be more volatile and less liquid than the securities of issuers located in countries with more mature economies. Emerging markets generally have less diverse and less mature economic structures and less stable political systems than those of developed countries. Investments in these countries may be subject to political, economic, legal, market and currency risks. The risks may include less protection of property rights and uncertain political and economic policies, the imposition of capital controls and/or foreign investment limitations by a country, nationalization of businesses and the imposition of sanctions by other countries, such as the United States.


· Foreign government obligations and securities of supranational entities risk. Investing in foreign government obligations, debt obligations of supranational entities and the sovereign debt of foreign countries, including emerging market countries, creates exposure to the direct or indirect consequences of political, social or economic changes in the countries that issue the securities or in which the issuers are located. A governmental obligor may default on its obligations. Some sovereign obligors have been among the world's largest debtors to commercial banks, other governments, international financial organizations and other financial institutions. These obligors, in the past, have experienced substantial difficulties in servicing their external debt obligations, which led to defaults on certain obligations and the restructuring of certain indebtedness.


· Foreign currency risk. Investments in foreign currencies are subject to the risk that those currencies will decline in value relative to the U.S. dollar or, in the case of hedged positions, that the U.S. dollar will decline relative to the currency being hedged. Currency exchange rates may fluctuate significantly over short periods of time. Foreign currencies, particularly the currencies of emerging market countries, are also subject to risks caused by inflation, interest rates, budget deficits and low savings rates, political factors and government intervention and controls.


· Commodity sector risk. Exposure to the commodities markets may subject the fund to greater volatility than investments in traditional securities. The values of commodities and commodity-linked investments are affected by events that might have less impact on the values of stocks and bonds. Investments linked to the prices of commodities are considered speculative. Because the value of a commodity-linked derivative instrument, such as a structured note, typically is based upon the price movements of physical commodities, the value of these securities will rise or fall in response to changes in the underlying commodities or related index of investment. Prices of commodities and commodity-linked investments may fluctuate significantly over short periods for a variety of factors, including: changes in supply and demand relationships, weather, agriculture, trade, fiscal, monetary and exchange control programs, disease, pestilence, acts of terrorism, embargoes, tariffs and international economic, political, military and regulatory developments.


· Subsidiary risk. By investing in the subsidiary, the fund will be indirectly exposed to the risks associated with the subsidiary's investments. The subsidiary principally invests in commodity-related instruments, including futures and options contracts, swap agreements and other derivatives, and the fund's investment in the subsidiary is subject to the same risks that apply to similar investments if held directly by the fund. Changes in applicable laws governing the subsidiary could prevent the fund or the subsidiary from operating as described in the prospectus and could negatively affect the fund and its shareholders. There also may be federal income tax risks associated with the fund's investment in the subsidiary.


· Leverage risk. The use of leverage, such as entering into futures contracts or forward currency contracts and engaging in forward commitment transactions, may magnify the fund's gains or losses. Because many derivatives have a leverage component, adverse changes in the value of the underlying asset can result in a loss substantially greater than the amount invested in the derivative itself.


· Derivatives risk. A small investment in derivatives could have a potentially large impact on the fund's performance. The use of derivatives involves risks different from, or possibly greater than, the risks associated with investing directly in the underlying assets, and the fund's use of derivatives may result in losses to the fund. Derivatives in which the fund may invest can be highly volatile, illiquid and difficult to value, and there is the risk that changes in the value of a derivative held by the fund will not correlate with the underlying assets or the fund's other investments in the manner intended. Certain derivatives have the potential for unlimited loss, regardless of the size of the initial investment. Certain types of derivatives, including over-the-counter swaps, forward contracts, structured notes and other over-the-counter transactions, involve greater risks than the underlying obligations because, in addition to general market risks, they are subject to liquidity risk, credit and counterparty risk (failure of the counterparty to the derivatives transaction to honor its obligation) and pricing risk (risk that the derivative cannot or will not be accurately valued).


· Short position risk. Short positions in securities may involve substantial risks. If a short position appreciates in value during the period of the fund's investment, there will be a loss to the fund that could be substantial. Short positions in stocks involve more risk than long positions in stocks because the maximum sustainable loss on a stock purchased is limited to the amount paid for the stock plus the transaction costs, whereas there is no maximum attainable price on the shorted stock. As such, theoretically, short positions in securities have unlimited risk.


· ETF and other investment company risk. To the extent the fund invests in pooled investment vehicles, such as investment companies and ETFs, the fund will be affected by the investment policies, practices and performance of such entities in direct proportion to the amount of assets the fund has invested therein. The risks of investing in other investment companies, including ETFs, typically reflect the risks associated with the types of instruments in which the investment companies and ETFs invest. When the fund invests in another investment company or an ETF, shareholders of the fund will bear indirectly their proportionate share of the expenses of the other investment company or the ETF (including management fees) in addition to the expenses of the fund.


· Liquidity risk. When there is little or no active trading market for specific types of securities, it can become more difficult to sell the securities in a timely manner at or near their perceived value. In such a market, the value of such securities and the fund's share price may fall dramatically, even during periods of declining interest rates. Investments that are illiquid or that trade in lower volumes may be more difficult to value. Investments in foreign securities, particularly those of issuers located in emerging markets, tend to have greater exposure to liquidity risk than domestic securities. Liquidity risk also may refer to the risk that the fund will not be able to pay redemption proceeds within the allowable time period stated in this prospectus because of unusual market conditions, an unusually high volume of redemption requests, or other reasons. To meet redemption requests, the fund may be forced to sell securities at an unfavorable time and/or under unfavorable conditions, which may adversely affect the fund's share price.


· Issuer risk. A security's market value may decline for a number of reasons which directly relate to the issuer, such as management performance, financial leverage and reduced demand for the issuer's products or services, or factors that affect the issuer's industry, such as labor shortages or increased production costs and competitive conditions within an industry.


· Tax risk. As a regulated investment company, the fund must derive at least 90% of its gross income for each taxable year from sources treated as "qualifying income" under the Internal Revenue Code of 1986, as amended. The fund intends to achieve investment exposure to global commodity markets primarily by investing in the subsidiary and commodity-linked derivative instruments. The tax treatment of some of the fund's commodity-linked positions and the fund's investment in the subsidiary may be adversely affected by future legislation, Treasury regulations or guidance issued by the Internal Revenue Service that could affect the character, timing or amount of the fund's taxable income or any gains and distributions made by the fund.


· Non-diversification risk. The fund is non-diversified, which means that the fund may invest a relatively high percentage of its assets in a limited number of issuers. Therefore, the fund's performance may be more vulnerable to changes in the market value of a single issuer or group of issuers and more susceptible to risks associated with a single economic, political or regulatory occurrence than a diversified fund.


· Portfolio turnover risk. The fund may engage in short-term trading, which could produce higher transaction costs and taxable distributions, and lower the fund's after-tax performance.

Risk Lose Money [Text] rr_RiskLoseMoney The fund's share price fluctuates, sometimes dramatically, which means you could lose money.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus The fund is non-diversified, which means that the fund may invest a relatively high percentage of its assets in a limited number of issuers. Therefore, the fund's performance may be more vulnerable to changes in the market value of a single issuer or group of issuers and more susceptible to risks associated with a single economic, political or regulatory occurrence than a diversified fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the fund is not a bank deposit. It is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the risks of investing in the fund. The bar chart shows changes in the performance of the fund's Class A shares from year to year. The table compares the average annual total returns of the fund's shares to those of three broad measures of market performance. The fund's past performance (before and after taxes) is not necessarily an indication of how the fund will perform in the future. The total returns also are compared to the Citigroup 3-month Treasury Bill Index, an unmanaged index generally considered representative of the average yield of three-month Treasury Bills, to show how the fund's performance compares to the returns of these securities. In addition, the total returns are compared to Hybrid Index A, comprised of 60% Morgan Stanley Capital International World Index (which measures large and mid-cap equity performance across 23 developed markets countries) and 40% Citigroup World Government Bond Index (which measures the performance of fixed-rate, local currency, investment grade sovereign bonds), and Hybrid Index B, comprised of 60% Morgan Stanley Capital International World Index (half-hedged) and 40% Citigroup World Government Bond Index (half-hedged), to show how the fund's performance compares to a mix of equities and bonds. Sales charges, if any, are not reflected in the bar chart, and if those charges were included, returns would have been less than those shown. More recent performance information may be available at www.dreyfus.com.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The following bar chart and table provide some indication of the risks of investing in the fund.
Performance Additional Market Index [Text] rr_PerformanceAdditionalMarketIndex In addition, the total returns are compared to Hybrid Index A, comprised of 60% Morgan Stanley Capital International World Index (which measures large and mid-cap equity performance across 23 developed markets countries) and 40% Citigroup World Government Bond Index (which measures the performance of fixed-rate, local currency, investment grade sovereign bonds), and Hybrid Index B, comprised of 60% Morgan Stanley Capital International World Index (half-hedged) and 40% Citigroup World Government Bond Index (half-hedged), to show how the fund's performance compares to a mix of equities and bonds.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.dreyfus.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The fund's past performance (before and after taxes) is not necessarily an indication of how the fund will perform in the future.
Bar Chart [Heading] rr_BarChartHeading Year-by-Year Total Returns as of 12/31 each year (%) Class A
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads Sales charges, if any, are not reflected in the bar chart, and if those charges were included, returns would have been less than those shown.
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock

Best Quarter
Q3, 2009: 17.71%


Worst Quarter
Q4, 2008: -15.40%


The year-to-date total return of the fund's Class A shares as of June 30, 2016 was -0.51%.
Year to Date Return, Label rr_YearToDateReturnLabel year-to-date total return
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2016
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (0.51%)
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best Quarter
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Sep. 30, 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 17.71%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst Quarter
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Dec. 31, 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (15.40%)
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes reflects no deduction 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 the investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their shares through U.S. 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 performance is shown only for Class A shares. After-tax performance of the fund's other share classes will vary.
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock

After-tax performance is shown only for Class A shares. After-tax performance of the fund's other share classes will vary. 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 the investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their shares through U.S. tax-deferred arrangements such as 401(k) plans or individual retirement accounts.


For the fund's Class Y shares, periods prior to the inception date reflect the performance of the fund's Class A shares, not reflecting the applicable sales charges for Class A shares. Such performance figures have not been adjusted to reflect applicable class fees and expenses. Each share class is invested in the same portfolio of securities, and the annual returns would have differed only to the extent that the classes do not have the same expenses.
Caption rr_AverageAnnualReturnCaption Average Annual Total Returns (as of 12/31/15)
Dynamic Total Return Fund | Morgan Stanley Capital International World Index reflects no deduction for fees, expenses or taxes  
Risk/Return: rr_RiskReturnAbstract  
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (0.87%)
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 7.59%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 4.14%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate May 02, 2006
Dynamic Total Return Fund | Morgan Stanley Capital International World Index (half-hedged) reflects no deduction for fees, expenses or taxes  
Risk/Return: rr_RiskReturnAbstract  
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 0.57%
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 8.57%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 4.42% [1]
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate Apr. 30, 2006
Dynamic Total Return Fund | Citigroup World Government Bond Index (half-hedged) reflects no deduction for fees, expenses or taxes  
Risk/Return: rr_RiskReturnAbstract  
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (1.14%)
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 1.93%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 3.96% [1]
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate Apr. 30, 2006
Dynamic Total Return Fund | Citigroup 3-month Treasury Bill Index reflects no deduction for fees, expenses or taxes  
Risk/Return: rr_RiskReturnAbstract  
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 0.03%
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 0.05%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 1.06%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate May 02, 2006
Dynamic Total Return Fund | Hybrid Index A reflects no deduction for fees, expenses or taxes  
Risk/Return: rr_RiskReturnAbstract  
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (1.72%)
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 4.66%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 4.16%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate May 02, 2006
Dynamic Total Return Fund | Hybrid Index B reflects no deduction for fees, expenses or taxes  
Risk/Return: rr_RiskReturnAbstract  
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 0.11%
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 6.06%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 4.56% [1]
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate Apr. 30, 2006
Dynamic Total Return Fund | Class A  
Risk/Return: rr_RiskReturnAbstract  
Maximum sales charge (load) imposed on purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 5.75%
Maximum deferred sales charge (load) (as a percentage of lower of purchase or sale price) rr_MaximumDeferredSalesChargeOverOther none [2]
Management fees rr_ManagementFeesOverAssets 1.10%
Distribution (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses (including shareholder services fees and fees and expenses of the fund's subsidiary) rr_Component2OtherExpensesOverAssets 0.46% [3]
Total annual fund operating expenses rr_ExpensesOverAssets 1.56% [3]
Fee waiver rr_FeeWaiverOrReimbursementOverAssets (0.06%) [4]
Total annual fund operating expenses (after fee waiver) rr_NetExpensesOverAssets 1.50%
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock Class A shares bought without an initial sales charge as part of an investment of $1 million or more may be charged a deferred sales charge of 1.00% if redeemed within one year.
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 719
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 1,022
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,346
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,263
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 719
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 1,022
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,346
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 2,263
Annual Return 2007 rr_AnnualReturn2007 0.17%
Annual Return 2008 rr_AnnualReturn2008 (33.99%)
Annual Return 2009 rr_AnnualReturn2009 24.70%
Annual Return 2010 rr_AnnualReturn2010 13.11%
Annual Return 2011 rr_AnnualReturn2011 0.09%
Annual Return 2012 rr_AnnualReturn2012 8.40%
Annual Return 2013 rr_AnnualReturn2013 14.00%
Annual Return 2014 rr_AnnualReturn2014 8.22%
Annual Return 2015 rr_AnnualReturn2015 (0.32%)
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (6.05%)
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 4.69%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 2.63%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate May 02, 2006
Dynamic Total Return Fund | Class A | After Taxes on Distributions  
Risk/Return: rr_RiskReturnAbstract  
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (6.05%)
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 4.69%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 2.37%
Dynamic Total Return Fund | Class A | After Taxes on Distributions and Sale of Fund Shares  
Risk/Return: rr_RiskReturnAbstract  
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (3.42%)
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 4.04%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 2.12%
Dynamic Total Return Fund | Class C  
Risk/Return: rr_RiskReturnAbstract  
Maximum sales charge (load) imposed on purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum deferred sales charge (load) (as a percentage of lower of purchase or sale price) rr_MaximumDeferredSalesChargeOverOther 1.00%
Management fees rr_ManagementFeesOverAssets 1.10%
Distribution (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.75%
Other expenses (including shareholder services fees and fees and expenses of the fund's subsidiary) rr_Component2OtherExpensesOverAssets 0.46% [3]
Total annual fund operating expenses rr_ExpensesOverAssets 2.31% [3]
Fee waiver rr_FeeWaiverOrReimbursementOverAssets (0.06%) [4]
Total annual fund operating expenses (after fee waiver) rr_NetExpensesOverAssets 2.25%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 328
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 703
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,205
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,585
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 228
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 703
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,205
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 2,585
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (2.00%)
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 5.15%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 2.49%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate May 02, 2006
Dynamic Total Return Fund | Class I  
Risk/Return: rr_RiskReturnAbstract  
Maximum sales charge (load) imposed on purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum deferred sales charge (load) (as a percentage of lower of purchase or sale price) rr_MaximumDeferredSalesChargeOverOther none
Management fees rr_ManagementFeesOverAssets 1.10%
Distribution (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses (including shareholder services fees and fees and expenses of the fund's subsidiary) rr_Component2OtherExpensesOverAssets 0.19% [3]
Total annual fund operating expenses rr_ExpensesOverAssets 1.29% [3]
Fee waiver rr_FeeWaiverOrReimbursementOverAssets (0.06%) [4]
Total annual fund operating expenses (after fee waiver) rr_NetExpensesOverAssets 1.23%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 125
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 390
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 676
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,489
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 125
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 390
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 676
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 1,489
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 none
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 6.27%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 3.60%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate May 02, 2006
Dynamic Total Return Fund | Class Y  
Risk/Return: rr_RiskReturnAbstract  
Maximum sales charge (load) imposed on purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum deferred sales charge (load) (as a percentage of lower of purchase or sale price) rr_MaximumDeferredSalesChargeOverOther none
Management fees rr_ManagementFeesOverAssets 1.10%
Distribution (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses (including shareholder services fees and fees and expenses of the fund's subsidiary) rr_Component2OtherExpensesOverAssets 0.11% [3]
Total annual fund operating expenses rr_ExpensesOverAssets 1.21% [3]
Fee waiver rr_FeeWaiverOrReimbursementOverAssets (0.06%) [4]
Total annual fund operating expenses (after fee waiver) rr_NetExpensesOverAssets 1.15%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 117
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 365
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 633
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,398
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 117
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 365
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 633
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 1,398
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 0.06%
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 6.35%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 3.47%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate Jul. 01, 2013
[1] For comparative purposes, the value of the index on April 30, 2006 is used as the beginning value on May 2, 2006.
[2] Class A shares bought without an initial sales charge as part of an investment of $1 million or more may be charged a deferred sales charge of 1.00% if redeemed within one year.
[3] Other expenses and Total annual fund operating expenses have been restated from those used or reflected in the Financial Highlights to include the estimated fees and expenses of the fund's subsidiary. These fees and expenses will fluctuate based on the amount of the fund's investment in the subsidiary. The fees and expenses of the subsidiary included in Other expenses reflect the fund's current allocation to the subsidiary.
[4] The fund's investment adviser, The Dreyfus Corporation, has contractually agreed, for so long as the fund invests in the subsidiary, to waive the management fee it receives from the fund in the amount equal to the management fee paid to The Dreyfus Corporation by the subsidiary. The amount of the waiver shown reflects the management fee paid by the subsidiary based on the fund's current allocation to the subsidiary.