Prospectus: Share Class [Axis] Series [Axis] Series S000009260 [Member] Goldman Sachs Financial Square Treasury Obligations Fund Goldman Sachs Financial Square Treasury Obligations Fund Member S000009261 [Member] Goldman Sachs Financial Square Treasury Instruments Fund Goldman Sachs Financial Square Treasury Instruments Fund Member S000009243 [Member] Goldman Sachs Financial Square Treasury Solutions Fund Goldman Sachs Financial Square Treasury Solutions Fund Member S000009242 [Member] Goldman Sachs Financial Square Government Fund Goldman Sachs Financial Square Government Fund Member S000051190 [Member] Goldman Sachs Financial Square Federal Instruments Fund Goldman Sachs Financial Square Federal Instruments Fund Member S000051191 [Member] Goldman Sachs Investor Money Market Fund Goldman Sachs Investor Money Market Fund Member S000009244 [Member] Goldman Sachs Investor Tax-Exempt Money Market Fund Goldman Sachs Investor Tax-Exempt Money Market Fund Member S000086404 [Member] Goldman Sachs Investor Tax-Exempt California Money Market Fund Goldman Sachs Investor Tax-Exempt California Money Market Fund Member S000086405 [Member] Goldman Sachs Investor Tax-Exempt New York Money Market Fund Goldman Sachs Investor Tax-Exempt New York Money Market Fund Member Share Classes C000025302 [Member] Institutional Shares Institutional Shares C000025309 [Member] Institutional Shares Institutional Shares C000025203 [Member] Institutional Shares Institutional Shares C000025196 [Member] Institutional Shares Institutional Shares C000161175 [Member] Institutional Shares Institutional Shares C000161182 [Member] Class I Shares Class I Shares C000025210 [Member] Class I Shares Class I Shares C000251959 [Member] Class I Shares Class I Shares C000251964 [Member] Class I Shares Class I Shares C000025307 [Member] Capital Shares Capital Shares C000025314 [Member] Capital Shares Capital Shares C000025208 [Member] Capital Shares Capital Shares C000025201 [Member] Capital Shares Capital Shares C000161180 [Member] Capital Shares Capital Shares C000025304 [Member] Service Shares Service Shares C000025311 [Member] Service Shares Service Shares C000025205 [Member] Service Shares Service Shares C000025198 [Member] Service Shares Service Shares C000161177 [Member] Service Shares Service Shares C000172503 [Member] Service Shares Service Shares C000025212 [Member] Service Shares Service Shares C000251958 [Member] Service Shares Service Shares C000251963 [Member] Service Shares Service Shares C000025305 [Member] Preferred Shares Preferred Shares C000025312 [Member] Preferred Shares Preferred Shares C000025206 [Member] Preferred Shares Preferred Shares C000025199 [Member] Preferred Shares Preferred Shares C000161178 [Member] Preferred Shares Preferred Shares C000025213 [Member] Preferred Shares Preferred Shares C000251957 [Member] Preferred Shares Preferred Shares C000251962 [Member] Preferred Shares Preferred Shares C000025306 [Member] Select Shares Select Shares C000025313 [Member] Select Shares Select Shares C000025207 [Member] Select Shares Select Shares C000025200 [Member] Select Shares Select Shares C000025303 [Member] Administration Shares Administration Shares C000025310 [Member] Administration Shares Administration Shares C000025204 [Member] Administration Shares Administration Shares C000025197 [Member] Administration Shares Administration Shares C000161176 [Member] Administration Shares Administration Shares C000166002 [Member] Administration Shares Administration Shares C000025211 [Member] Administration Shares Administration Shares C000251955 [Member] Administration Shares Administration Shares C000251960 [Member] Administration Shares Administration Shares C000088821 [Member] Cash Management Shares Cash Management Shares C000088822 [Member] Cash Management Shares Cash Management Shares C000088805 [Member] Cash Management Shares Cash Management Shares C000088802 [Member] Cash Management Shares Cash Management Shares C000161786 [Member] Cash Management Shares Cash Management Shares C000172501 [Member] Cash Management Shares Cash Management Shares C000088819 [Member] Premier Shares Premier Shares C000088823 [Member] Premier Shares Premier Shares C000088806 [Member] Premier Shares Premier Shares C000088803 [Member] Premier Shares Premier Shares C000088820 [Member] Resource Shares Resource Shares C000088804 [Member] Resource Shares Resource Shares C000214495 [Member] Drexel Hamilton Class Shares Drexel Hamilton Class Shares C000167141 [Member] Class R6 Shares Class R6 Shares C000166882 [Member] Class A Shares Class A Shares C000166883 [Member] Class C Shares Class C Shares C000166000 [Member] Class A Shares Class A Shares C000166001 [Member] Class C Shares Class C Shares C000166884 [Member] Class A Shares Class A Shares C000166885 [Member] Class C Shares Class C Shares C000251956 [Member] Class A Shares Class A Shares C000251961 [Member] Class A Shares Class A Shares C000229777 [Member] Loop Shares Loop Shares C000229775 [Member] Loop Shares Loop Shares C000229776 [Member] Seelaus Shares Seelaus Shares C000229774 [Member] Seelaus Shares Seelaus Shares C000240871 [Member] Class D Shares Class D Shares C000237844 [Member] Class D Shares Class D Shares C000240872 [Member] Class D Shares Class D Shares C000240873 [Member] Class D Shares Class D Shares Document Type Period End Date Document Period End Date Registrant Name CIK Entity Central Index Key Amendment Flag Trading Symbol Document Creation Date Document Effective Date Prospectus Date Legal Entity Identifier Entity Inv Company Type Amendment Description Net Expenses (as a percentage of Assets) Total Annual Fund Operating Expenses After Expense Limitation Total Annual Fund Operating Expenses After Expense Limitation Expenses (as a percentage of Assets) Total Annual Fund Operating Expenses Total Annual Fund Operating Expenses Management Fees (as a percentage of Assets) Management Fees Distribution and Service (12b-1) Fees Service (12b-1) Fees Distribution (12b-1) Fees Distribution or Similar (Non 12b-1) Fees Other Expenses (as a percentage of Assets): Other Expenses Other Expenses Component1 Other Expenses Service Fees Component2 Other Expenses Shareholder Administration Fees Administration Fees Component3 Other Expenses All Other Expenses Acquired Fund Fees and Expenses Fee Waiver or Reimbursement Fee Waiver or Reimbursement Expense Limitation Performance Measure [Axis] Document [Axis] Prospectus Institutional Shares [Member] Institutional Shares Institutional Shares [Member] Institutional Shares Coregistrant [Axis] Coregistrant [Domain] Before Taxes After Taxes on Distributions After Taxes on Distributions and Sales Risk [Axis] All Risks [Member] Risk Nondiversified Status [Member] Risk Lose Money [Member] Risk Money Market Fund Price Fluctuates [Member] Risk Money Market Fund May Impose Fees or Suspend Sales [Member] Risk Money Market Fund May Not Preserve Dollar [Member] Risk Money Market Fund Sponsor May Not Provide Support [Member] Risk Not Insured Depository Institution [Member] Risk Not Insured [Member] Credit Default Risk [Member] Credit Default Risk [Member] Interest Rate Risk [Member] Interest Rate Risk [Member] Large Shareholder Transactions Risk [Member] Large Shareholder Transactions Risk [Member] Liquidity Risk [Member] Liquidity Risk [Member] Market Risk [Member] Market Risk [Member] Stable NAV Risk [Member] Stable NAV Risk [Member] Risk/Return [Heading] Objective [Heading] Objective, Primary [Text Block] Expense [Heading] Expense Narrative [Text Block] Shareholder Fees Caption [Text] Maximum Sales Charge (Load) Imposed on Purchases Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) Maximum Deferred Sales Charge (Load) Maximum Deferred Sales Charge (as a percentage) Maximum Sales Charge (Load) Imposed on Reinvested Dividends Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) Redemption Fees Redemption Fee (as a percentage of Amount Redeemed) Exchange Fees Exchange Fee (as a percentage of Amount Redeemed) Operating Expenses Caption [Text] Expense Example [Heading] Expense Example Narrative [Text Block] 1 Year Expense Example, with Redemption, 1 Year 3 Years Expense Example, with Redemption, 3 Years 5 Years Expense Example, with Redemption, 5 Years 10 Years Expense Example, with Redemption, 10 Years Strategy [Heading] Strategy Narrative [Text Block] Risk [Heading] Risk [Text Block] Bar Chart and Performance Table [Heading] Performance Narrative [Text Block] Performance Information Illustrates Variability of Returns [Text] Performance Availability Phone [Text] Performance Past Does Not Indicate Future [Text] Bar Chart [Heading] 2015 Annual Return 2015 2016 Annual Return 2016 2017 Annual Return 2017 2018 Annual Return 2018 2019 Annual Return 2019 2020 Annual Return 2020 2021 Annual Return 2021 2022 Annual Return 2022 2023 Annual Return 2023 2024 Annual Return 2024 Bar Chart Closing [Text Block] Highest Quarterly Return, Label Highest Quarterly Return, Date Highest Quarterly Return Lowest Quarterly Return, Label Lowest Quarterly Return, Date Lowest Quarterly Return Performance Table Heading 1 Year 5 Years 10 Years Inception Date Objective, Secondary [Text Block] Shareholder Fees Column [Text] Maximum Cumulative Sales Charge (as a percentage of Offering Price) Maximum Cumulative Sales Charge (as a percentage) Maximum Deferred Sales Charge (as a percentage of Offering Price) Redemption Fee Redemption Fee Exchange Fee Maximum Account Fee (as a percentage of Assets) Maximum Account Fee Shareholder Fee, Other Operating Expenses Column [Text] Fee Waiver or Reimbursement over Assets, Date of Termination Portfolio Turnover [Heading] Portfolio Turnover [Text Block] Portfolio Turnover, Rate Expense Footnotes [Text Block] Expenses Deferred Charges [Text Block] Expenses Range of Exchange Fees [Text Block] Expense Breakpoint Discounts [Text] Expense Breakpoint, Minimum Investment Required [Amount] Expenses Represent Both Master and Feeder [Text] Expenses Explanation of Nonrecurring Account Fee [Text] Other Expenses, New Fund, Based on Estimates [Text] Acquired Fund Fees and Expenses, Based on Estimates [Text] Expenses Other Expenses Had Extraordinary Expenses Been Included [Text] Expenses Restated to Reflect Current [Text] Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text] Expense Example by Year [Heading] Expense Example by, Year, Caption [Text] Expense Example, No Redemption Narrative [Text Block] Expense Example, No Redemption, By Year, Caption [Text] Expense Example, No Redemption, By Year, Caption [Text] Expense Example, No Redemption, 1 Year 1 Year 1 Year Expense Example, No Redemption, 3 Years 3 Years 3 Years Expense Example, No Redemption, 5 Years 5 Years 5 Years Expense Example, No Redemption, 10 Years 10 Years 10 Years Expense Example Footnotes [Text Block] Expense Example Closing [Text Block] Strategy Portfolio Concentration [Text] Risk Footnotes [Text Block] Risk Closing [Text Block] Risk Caption Risk Column [Text] Performance One Year or Less [Text] Performance Additional Market Index [Text] Performance Availability Website Address [Text] Bar Chart Narrative [Text Block] Bar Chart Does Not Reflect Sales Loads [Text] Annual Return Caption [Text] Caption Annual Return, Column [Text] Column Annual Return, Inception Date Inception Date Annual Return 1990 Annual Return 1991 Annual Return 1992 Annual Return 1993 Annual Return 1994 Annual Return 1995 Annual Return 1996 Annual Return 1997 Annual Return 1998 Annual Return 1999 Annual Return 2000 Annual Return 2001 Annual Return 2002 Annual Return 2003 Annual Return 2004 Annual Return 2005 Annual Return 2006 Annual Return 2007 Annual Return 2008 Annual Return 2009 Annual Return 2010 Annual Return 2011 Annual Return 2012 Annual Return 2013 Annual Return 2014 Annual Return 2025 Bar Chart Footnotes [Text Block] Bar Chart, Reason Selected Class Different from Immediately Preceding Period [Text] Bar Chart, Returns for Class Not Offered in Prospectus [Text] Year to Date Return, Label Bar Chart, Year to Date Return, Date Bar Chart, Year to Date Return Performance Table Does Reflect Sales Loads Performance Table Market Index Changed Index No Deduction for Fees, Expenses, Taxes [Text] Performance Table Uses Highest Federal Rate Performance Table Not Relevant to Tax Deferred Performance Table One Class of after Tax Shown [Text] Performance Table Explanation after Tax Higher Performance Table Narrative Performance Table Footnotes, Reason Performance Information for Class Different from Immediately Preceding Period [Text] Performance Table Footnotes Performance Table Closing [Text Block] Average Annual Return, Caption Average Annual Return, Column Name Label Since Inception Since Inception Money Market Seven Day Yield, Caption [Text] Money Market Seven Day Yield Column [Text] Money Market Seven Day Yield Phone Money Market Seven Day Yield Money Market Seven Day Tax Equivalent Yield Thirty Day Yield Caption Thirty Day Yield Column [Text] Thirty Day Yield Phone Thirty Day Yield Thirty Day Tax Equivalent Yield Supplement to Prospectus [Text Block] US Government Securities Risk [Member] US Government Securities Risk [Member] Class I Shares [Member] Class I Shares Class I Shares [Member] Class I Shares Banking Industry Risk [Member] Banking Industry Risk [Member] Foreign Risk [Member] Foreign Risk [Member] Municipal Securities Risk [Member] Municipal Securities Risk [Member] Geographic and Sector Risk [Member] Geographic and Sector Risk [Member] Tax Risk [Member] Tax Risk [Member] California Risk [Member] California Risk [Member] New York Risk [Member] New York Risk [Member] Capital Shares [Member] Capital Shares Capital Shares [Member] Capital Shares Service Shares [Member] Service Shares Service Shares [Member] Service Shares Preferred Shares [Member] Preferred Shares Preferred Shares [Member] Preferred Shares Select Shares [Member] Select Shares Select Shares [Member] Select Shares Administration Shares [Member] Administration Shares Administration Shares [Member] Administration Shares Cash Management Shares [Member] Cash Management Shares Cash Management Shares [Member] Cash Management Shares Premier Shares [Member] Premier Shares Premier Shares [Member] Premier Shares Resource Shares [Member] Resource Shares Resource Shares [Member] Resource Shares Drexel Hamilton Class Shares [Member] Drexel Hamilton Class Shares Drexel Hamilton Class Shares [Member] Class R6 Shares [Member] Class R6 Shares Class R6 Shares [Member] Class AC Shares [Member] Class A C Shares Class AC Shares [Member] Class A C Shares Class A Shares [Member] Class A Shares Class A Shares [Member] Class A Shares Loop Class Shares [Member] Loop Class Shares Loop Class Shares [Member] Loop Class Shares Seelaus Class Shares [Member] Seelaus Class Shares Seelaus Class Shares [Member] Seelaus Class Shares Class D Shares [Member] Class D Shares Class D Shares [Member] Class D Shares