Goldman Sachs High Yield Municipal Fund Investment Strategy - Class P Shares [Member] - Goldman Sachs High Yield Municipal Fund	Mar. 31, 2026
Prospectus [Line Items]
Strategy [Heading]	<span style="color:#FFFFFF;font-family:Arial;font-size:7.5pt;margin-left:0.0pt;text-transform:uppercase;">Principal Strategy</span>
Strategy Narrative [Text Block]	The Fund invests, under normal circumstances, at least 80% of its net assets plus any borrowings for investment purposes (“Net Assets”) in fixed income securities issued by or on behalf of states, territories and possessions of the United States (including the District of Columbia) and the political subdivisions, agencies and instrumentalities thereof (“Municipal Securities”), the interest on which is exempt from regular federal income tax (i.e., excluded from gross income for federal income tax purposes).A fixed income security is a debt instrument issued by a company, government or other entity to borrow money. The issuer typically pays a fixed, variable, or floating rate of interest and must repay the amount borrowed, usually at the maturity of the security.The Fund invests, under normal circumstances, a majority of its total assets measured at the time of purchase (“Total Assets”) in high-yield Municipal Securities. High-yield securities are securities that, at the time of purchase, are medium quality or non-investment grade. Medium quality securities are rated BBB or Baa by a nationally recognized statistical rating organization (“NRSRO”), and non-investment grade securities are securities rated BB+, Ba1 or below by an NRSRO. Non-investment grade securities are commonly known as “junk bonds.” The Fund may also invest in unrated securities determined by the Investment Adviser to be of comparable credit quality. The Fund may purchase the securities of issuers that are in default. Under normal circumstances, the Fund may also invest the remainder of its Total Assets in higher grade fixed income securities. In pursuing its principal investment strategy, the Investment Adviser will assess the relative value in the Municipal Securities market from both a credit and yield curve perspective. As part of the Investment Adviser’s fundamental investment process, the Investment Adviser may integrate environmental, social and governance (“ESG”) factors alongside traditional fundamental factors. In addition, individual securities will be considered for purchase or sale based on credit profile, risk, structure, pricing, and portfolio impact, as well as duration management, restructuring, opportunistic trading and tax loss harvesting. No one factor or consideration is determinative in the fundamental investment process. Tax-exempt securities offering the high current income sought by the Fund may be predominantly in the lower rating categories of NRSROs (BB+/Ba1 or lower). The Fund may focus its investments in issuers within the same state or economic sector. The Fund may invest up to 100% of its Net Assets in private activity bonds, the interest on which (including the Fund’s distributions of such interest) may be a preference item for purposes of the federal alternative minimum tax. 100% of the Fund’s portfolio will be invested in U.S. dollar-denominated securities. The Fund may also seek to obtain exposure to fixed income investments through investments in affiliated or unaffiliated investment companies, including exchange-traded funds (“ETFs”). In addition, the Fund may invest in securities of other investment companies (specifically, registered money market funds) to manage uninvested cash in the portfolio. Under normal interest rate conditions, the Fund’s duration is expected to approximate that of the Goldman Sachs High Yield Municipal Fund Composite Index (comprised of 40% Bloomberg Municipal Bond Index and 60% Bloomberg Municipal High Yield Bond Index), plus or minus two years. (Historically over the last five years, the duration of the Goldman Sachs High Yield Municipal Fund Composite Index has ranged between 5.88 and 7.48 years). “Duration” is a measure of a debt security’s price sensitivity to changes in interest rates. The longer the duration of the Fund (or an individual debt security), the more sensitive its market price to changes in interest rates. For example, if market interest rates increase by 1%, the market price of a debt security with a positive duration of 3 years will generally decrease by approximately 3%. Conversely, a 1% decline in market interest rates will generally result in an increase of approximately 3% of that security’s market price. The Investment Adviser measures the Fund’s performances against the Goldman Sachs High Yield Municipal Fund Composite Index, which is composed of the Bloomberg Municipal High Yield Bond Index (60%) and the Bloomberg Municipal Bond Index (40%) (with distributions reinvested).

Goldman Sachs High Yield Municipal Fund Investment Strategy - Class P Shares [Member] - Goldman Sachs High Yield Municipal Fund

Mar. 31, 2026

<span style="color:#FFFFFF;font-family:Arial;font-size:7.5pt;margin-left:0.0pt;text-transform:uppercase;">Principal Strategy</span>

Strategy Narrative [Text Block]

The Fund invests, under normal circumstances, at least 80% of its net assets plus any borrowings for investment purposes (“Net Assets”) in fixed income securities issued by or on behalf of states, territories and possessions of the United States (including the District of Columbia) and the political subdivisions, agencies and instrumentalities thereof (“Municipal Securities”), the interest on which is exempt from regular federal income tax (i.e., excluded from gross income for federal income tax purposes).A fixed income security is a debt instrument issued by a company, government or other entity to borrow money. The issuer typically pays a fixed, variable, or floating rate of interest and must repay the amount borrowed, usually at the maturity of the security.The Fund invests, under normal circumstances, a majority of its total assets measured at the time of purchase (“Total Assets”) in high-yield Municipal Securities. High-yield securities are securities that, at the time of purchase, are medium quality or non-investment grade. Medium quality securities are rated BBB or Baa by a nationally recognized statistical rating organization (“NRSRO”), and non-investment grade securities are securities rated BB+, Ba1 or below by an NRSRO. Non-investment grade securities are commonly known as “junk bonds.” The Fund may also invest in unrated securities determined by the Investment Adviser to be of comparable credit quality. The Fund may purchase the securities of issuers that are in default. Under normal circumstances, the Fund may also invest the remainder of its Total Assets in higher grade fixed income securities. In pursuing its principal investment strategy, the Investment Adviser will assess the relative value in the Municipal Securities market from both a credit and yield curve perspective. As part of the Investment Adviser’s fundamental investment process, the Investment Adviser may integrate environmental, social and governance (“ESG”) factors alongside traditional fundamental factors. In addition, individual securities will be considered for purchase or sale based on credit profile, risk, structure, pricing, and portfolio impact, as well as duration management, restructuring, opportunistic trading and tax loss harvesting. No one factor or consideration is determinative in the fundamental investment process. Tax-exempt securities offering the high current income sought by the Fund may be predominantly in the lower rating categories of NRSROs (BB+/Ba1 or lower). The Fund may focus its investments in issuers within the same state or economic sector. The Fund may invest up to 100% of its Net Assets in private activity bonds, the interest on which (including the Fund’s distributions of such interest) may be a preference item for purposes of the federal alternative minimum tax. 100% of the Fund’s portfolio will be invested in U.S. dollar-denominated securities. The Fund may also seek to obtain exposure to fixed income investments through investments in affiliated or unaffiliated investment companies, including exchange-traded funds (“ETFs”). In addition, the Fund may invest in securities of other investment companies (specifically, registered money market funds) to manage uninvested cash in the portfolio. Under normal interest rate conditions, the Fund’s duration is expected to approximate that of the Goldman Sachs High Yield Municipal Fund Composite Index (comprised of 40% Bloomberg Municipal Bond Index and 60% Bloomberg Municipal High Yield Bond Index), plus or minus two years. (Historically over the last five years, the duration of the Goldman Sachs High Yield Municipal Fund Composite Index has ranged between 5.88 and 7.48 years). “Duration” is a measure of a debt security’s price sensitivity to changes in interest rates. The longer the duration of the Fund (or an individual debt security), the more sensitive its market price to changes in interest rates. For example, if market interest rates increase by 1%, the market price of a debt security with a positive duration of 3 years will generally decrease by approximately 3%. Conversely, a 1% decline in market interest rates will generally result in an increase of approximately 3% of that security’s market price. The Investment Adviser measures the Fund’s performances against the Goldman Sachs High Yield Municipal Fund Composite Index, which is composed of the Bloomberg Municipal High Yield Bond Index (60%) and the Bloomberg Municipal Bond Index (40%) (with distributions reinvested).