Label	Element	Value
Dreyfus Emerging Markets Debt Local Currency Fund
Risk/Return:	rr_RiskReturnAbstract
Supplement [Text Block]	ck0000053808_SupplementTextBlock	April 30, 2015 THE DREYFUS/LAUREL FUNDS TRUST - Dreyfus Emerging Markets Debt Local Currency Fund Supplement to Summary and Statutory Prospectuses dated October 1, 2014 As Revised November 25, 2014
Risk/Return [Heading]	rr_RiskReturnHeading	Dreyfus Emerging Markets Debt Local Currency Fund
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The following information supersedes and replaces any contrary information in the summary prospectus and statutory prospectus:
Performance Table Narrative	rr_PerformanceTableNarrativeTextBlock	The fund’s benchmark is the JPMorgan Government Bond Index – Emerging Markets Global Diversified (GBI-EM Global Diversified), an unmanaged index that tracks local currency bonds issued by emerging market governments. The GBI-EM Global Diversified consists of regularly traded, liquid fixed-rate, local currency government bonds and includes only those countries that give access to their capital markets to global investors.

- Definition

If the Fund has annual returns for at least one calendar year, provide a table showing the Fund's (A) average annual total return; (B) average annual total return (after taxes on distributions); and (C) average annual total return (after taxes on distributions and redemption). A Money Market Fund should show only the returns described in clause (A) of the preceding sentence. All returns should be shown for 1-, 5-, and 10- calendar year periods ending on the date of the most recently completed calendar year (or for the life of the Fund, if shorter), but only for periods subsequent to the effective date of the Fund's registration statement. The table also should show the returns of an appropriate broad-based securities market index as defined in Instruction 5 to Item 22(b)(7) for the same periods. A Fund that has been in existence for more than 10 years also may include returns for the life of the Fund. A Money Market Fund may provide the Fund's 7-day yield ending on the date of the most recent calendar year or disclose a toll-free (or collect) telephone number that investors can use to obtain the Fund's current 7-day yield. For a Fund (other than a Money Market Fund or a Fund described in General Instruction C.3.(d)(iii)), provide the information in the following table with the specified captions AVERAGE ANNUAL TOTAL RETURNS (For the periods ended December 31, _____). For a Fund that provides annual total returns for only one calendar year or for a Fund that does not include the bar chart because it does not have annual returns for a full calendar year, modify, as appropriate, the narrative explanation required by paragraph (c)(2)(i) (e.g., by stating that the information gives some indication of the risks of an investment in the Fund by comparing the Fund's performance with a broad measure of market performance).

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