497

RULE 497 FILING

On behalf of the Goldman Sachs Target Date 2020 Portfolio, Goldman Sachs Target Date 2025 Portfolio, Goldman Sachs Target Date 2030 Portfolio, Goldman Sachs Target Date 2035 Portfolio, Goldman Sachs Target Date 2040 Portfolio, Goldman Sachs Target Date 2045 Portfolio, Goldman Sachs Target Date 2050 Portfolio, Goldman Sachs Target Date 2055 Portfolio, and Goldman Sachs Target Date 2060 Portfolio (the “Portfolios”), each a series of Goldman Sachs Trust II, and pursuant to Rule 497(e) under the Securities Act of 1933, as amended, attached for filing are exhibits containing interactive data format risk/return summary information. The interactive data files included as exhibits to this filing relate to the prospectus and Statement of Additional Information filed with the Securities and Exchange Commission on behalf of the Portfolios pursuant to Rule 497(e) on May 21, 2018 (Accession No. 0001193125-18-169404), which is incorporated by reference into this Rule 497 Filing.

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Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Document Type	dei_DocumentType	497
Document Period End Date	dei_DocumentPeriodEndDate	Aug. 31, 2017
Registrant Name	dei_EntityRegistrantName	Goldman Sachs Trust II
Central Index Key	dei_EntityCentralIndexKey	0001557156
Amendment Flag	dei_AmendmentFlag	false
Document Creation Date	dei_DocumentCreationDate	May 21, 2018
Document Effective Date	dei_DocumentEffectiveDate	May 21, 2018
Prospectus Date	rr_ProspectusDate	May 21, 2018

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Goldman Sachs Target Date 2020 Portfolio

Goldman Sachs Target Date 2020 Portfolio—Summary

Investment Objective

The Goldman Sachs Target Date 2020 Portfolio (the “Portfolio”) seeks to provide capital appreciation and current income consistent with its current asset allocation.

Fees and Expenses of the Portfolio

This table describes the fees and expenses that you may pay if you buy and hold shares of the Portfolio. You may qualify for sales charge discounts on purchases of Class A Shares if you invest at least $50,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 82 and in Appendix C—Additional Information About Sales Charge Variations, Waivers and Discounts on page 126 of the Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-133 of the Portfolio’s Statement of Additional Information (“SAI”).

Shareholder Fees
(fees paid directly from your investment)

Shareholder Fees - Goldman Sachs Target Date 2020 Portfolio	Class A	Institutional	Service	Investor	Class R	Class R6
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.50%	none	none	none	none	none

Annual Portfolio Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Annual Portfolio Operating Expenses - Goldman Sachs Target Date 2020 Portfolio		Class A	Institutional	Service	Investor	Class R	Class R6
Management Fees		0.25%	0.25%	0.25%	0.25%	0.25%	0.25%
Distribution and/or Service (12b-1) Fees		0.25%	none	0.25%	none	0.50%	none
Other Expenses	[1]	0.85%	0.71%	0.96%	0.85%	0.85%	0.70%
Shareholder Administration Fees		none	none	0.25%	none	none	none
All Other Expenses		0.85%	0.71%	0.71%	0.85%	0.85%	0.70%
Acquired (Underlying) Fund Fees and Expenses		0.17%	0.17%	0.17%	0.17%	0.17%	0.17%
Total Annual Portfolio Operating Expenses	[2]	1.52%	1.13%	1.63%	1.27%	1.77%	1.12%
Fee Waiver and Expense Limitation	[3]	(0.65%)	(0.65%)	(0.65%)	(0.65%)	(0.65%)	(0.65%)
Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation	[2]	0.87%	0.48%	0.98%	0.62%	1.12%	0.47%

Expense Example

This Example is intended to help you compare the cost of investing in the Portfolio with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in Class A, Institutional, Service, Investor, Class R and/or Class R6 Shares of the Portfolio for the time periods indicated and then redeem all of your Class A, Institutional, Service, Investor, Class R and/or Class R6 Shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Portfolio's operating expenses remain the same (except that the Example incorporates the fee waiver and expense limitation arrangements for only the first year). Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example - Goldman Sachs Target Date 2020 Portfolio - USD ($)	1 Year	3 Years	5 Years	10 Years
Class A Shares	634	944	1,275	2,210
Institutional Shares	49	295	559	1,316
Service Shares	100	451	825	1,878
Investor Shares	63	338	634	1,477
Class R Shares	114	494	899	2,030
Class R6 Shares	48	291	554	1,305

Portfolio Turnover

The Portfolio may pay transaction costs when it buys and sells securities or instruments (i.e., "turns over" its portfolio). A high rate of portfolio turnover may result in increased transaction costs, including brokerage commissions, which must be borne by the Portfolio and its shareholders, and is also likely to result in higher short-term capital gains for taxable shareholders. These costs are not reflected in annual fund operating expenses or in the expense example above, but are reflected in the Portfolio's performance. The Portfolio's portfolio turnover rate for the fiscal period ended August 31, 2017 was 189% of the average value of its portfolio.

Principal Strategy

The Portfolio employs an asset allocation strategy designed for investors who plan to retire and to begin gradually withdrawing their investment from the Portfolio beginning in approximately 2020 (the “Target Date”). The Portfolio is managed for an investor planning to retire at the age of 65 on or around the Target Date.

The Portfolio generally seeks to achieve its investment objective by investing in shares of exchange-traded funds (“Underlying ETFs”) and other registered investment companies (collectively, the “Underlying Funds”), according to an asset allocation strategy, developed by Madison Asset Management, LLC (the “Sub-Adviser”) who is unaffiliated with the Investment Adviser, for investors planning to retire in or within a few years of 2020. Over time, the Portfolio’s asset allocation will become more conservative until it reaches approximately 10-30% in equity funds and 70-90% in fixed income funds at the Target Date as illustrated in the graph below. After the Target Date, and as also illustrated in the graph below, the Portfolio’s asset allocation targets are expected to remain within these approximate ranges. The graph below applies to each Goldman Sachs Target Date Portfolio identified in the Prospectus.



The asset allocation strategy is designed to reduce the volatility of investment returns in the later years while still providing the potential for higher total returns over the target period. Market conditions and the perceived value of securities will change as the investor moves across the glide path. Although the actual allocations may vary, the chart below illustrates the expected strategic asset allocation of the glide path and the tactical allocation ranges of the core asset classes and sub-asset classes.

YEARS TO TARGET DATE	5	0	–5	–10
Strategic Allocations
Equity	38%	20%	20%	20%
US Equity	26%	14%	14%	14%
Non-US Developed Equities	11%	6%	6%	6%
Fixed Income	63%	80%	80%	80%
Tactical Allocation Ranges
Equity	28-48%	10-30%	10-30%	10-30%
US Equity	17-43%	6-27%	6-27%	6-27%
Non-US Equities	3-19%	1-12%	1-12%	1-12%
Fixed Income	53-73%	70-90%	70-90%	70-90%
Sub-Asset Classes and Alternatives
Emerging Markets Equities	0-10%	0-6%	0-6%	0-6%
Real Estate	0-10%	0-10%	0-10%	0-10%
Commodities	0-10%	0-10%	0-10%	0-10%
Other Alternative Strategies	0-10%	0-10%	0-10%	0-10%

Note: Above allocations may not sum to total due to rounding.

On a periodic basis, the Sub-Adviser will evaluate and may revise the Portfolio’s asset allocation, including revising the asset class weightings and adding and/or removing Underlying Funds. There will be times when the perceived value of equity and/or fixed income securities are stretched (or depressed) and the opportunity to proactively protect against (or take advantage of) these opportunities necessitates an ability to deviate from the glide path’s strategic target. In order to attempt to capitalize on these periodic opportunities, the Sub-Adviser established a “tactical allocation range” that allows flexibility to increase or decrease exposure from the glide path’s strategic allocations. As a result, the Portfolio’s equity and fixed income asset allocation targets may range within the bounds of this tactical allocation range as illustrated in the chart above depending on the Sub-Adviser’s views of the appropriate mix of the Portfolio’s asset allocation based on then-current economic, market or other conditions, or factors unique to the Portfolio. Certain sub-asset classes, like real estate, commodities, and other alternative strategies, may be invested in using the tactical allocation range illustrated in the table above. The Sub-Adviser may also use the tactical allocation range to invest in certain other sub-asset classes within fixed income such as: domestic high yield non-investment grade securities (commonly referred to as “junk bonds”), inflation-linked securities, securities issued by foreign corporate and governmental issuers, sovereign and corporate debt securities of issuers in emerging market countries, convertible securities, and preferred stock. The Sub-Adviser will also monitor the Underlying Funds on an ongoing basis and may increase or decrease the Portfolio’s investment in one or more Underlying Funds. The Underlying Fund selections are made based on several considerations, including the Portfolio’s style or asset class exposures, portfolio characteristics, risk profile, and investment process. With regard to investments in Underlying Funds that invest in debt securities, the Sub-Adviser seeks to select portfolios of securities with long-, intermediate- and short-term maturities. Although the Portfolio does not intend to concentrate its investments in a particular industry, the Portfolio may indirectly concentrate in a particular industry or group of industries through its aggregate investment in one or more Underlying Funds. The particular Underlying Funds in which the Portfolio may invest and the Portfolio’s targets and ranges will change from time to time without shareholder approval or notice.

The Sub-Adviser’s strategy is intended to represent a conservative investment strategy. The Sub-Adviser’s expectation is that the Portfolio may participate in market appreciation during bull markets and experience something less than full participation during bear markets compared with other funds holding more speculative and volatile securities. There is no assurance that the Sub-Adviser’s expectations regarding this investment strategy will be realized.

Although the Portfolio expects to pursue its investment objective utilizing its principal investment strategies regardless of market conditions, the Portfolio may invest up to 100% in money market instruments. To the extent the Portfolio engages in this temporary defensive position, the Portfolio’s ability to achieve its investment objective may be diminished.

Management Process

The Investment Adviser and the Portfolio have received an exemptive order from the Securities and Exchange Commission (“SEC”). Under the exemptive order, the Investment Adviser has the ultimate responsibility, subject to oversight by the Portfolio’s Board of Trustees, to oversee the Sub-Adviser and recommend its hiring, termination and replacement. The initial shareholder of the Portfolio approved the Portfolio’s operation in this manner and reliance by the Portfolio on this exemptive order.

Additional Information

The Portfolio’s benchmark index is the S&P Target Date To 2020 Index (the “Index”).

Principal Risks of the Portfolio

Loss of money is a risk of investing in the Portfolio. An investment in the Portfolio is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any government agency. The Portfolio should not be relied upon as a complete investment program. Stated allocations may be subject to change. There can be no assurance that the Portfolio will achieve its investment objective. Investments in the Portfolio involve substantial risks which prospective investors should consider carefully before investing. Investors should also consider, in addition to his or her age or retirement date, other factors, including the investor’s risk tolerance, personal circumstances, and complete financial situation.

Asset Allocation Risk.  The Portfolio’s allocations to various asset classes and to the Underlying Funds may cause the Portfolio to underperform other funds with a similar investment objective.

Expenses.  By investing in the Underlying Funds indirectly through the Portfolio, the investor will incur not only a proportionate share of the expenses of the Underlying Funds held by the Portfolio (including operating costs and investment management fees), but also expenses of the Portfolio.

Inadequate Retirement Income.  An investment in the Portfolio is not guaranteed, and the Portfolio may experience losses, including losses near, at, or after the Target Date. There is no guarantee that the Portfolio will achieve sufficient capital appreciation to provide adequate income at and through retirement. Moreover, there is no guarantee that the Portfolio’s performance will keep pace with or exceed the rate of inflation, which may reduce the value of your investment over time.

Investing in the Underlying Funds.  The investments of the Portfolio may be concentrated in one or more Underlying Funds (including ETFs and other registered investment companies) subject to statutory limitations prescribed by the Investment Company Act of 1940, as amended (the "Investment Company Act"), or exemptive relief thereunder. The Portfolio's investment performance is directly related to the investment performance of the Underlying Funds it holds. The Portfolio is subject to the risk factors associated with the investments of the Underlying Funds in direct proportion to the amount of assets allocated to each. If the Portfolio has a relative concentration of its portfolio in a single Underlying Fund, it may be more susceptible to adverse developments affecting that Underlying Fund, and may be more susceptible to losses because of these developments.

Investments of the Underlying Funds.  Because the Portfolio invests in the Underlying Funds, the Portfolio’s shareholders will be affected by the investment policies and practices of the Underlying Funds in direct proportion to the amount of assets the Portfolio allocates to those Underlying Funds. A strategy used by the Underlying Funds may fail to produce the intended results.

Large Shareholder Transactions Risk.  The Portfolio may experience adverse effects when certain large shareholders purchase or redeem large amounts of shares of the Portfolio. Such large shareholder redemptions may cause the Portfolio to sell portfolio securities at times when it would not otherwise do so, which may negatively impact the Portfolio’s NAV and liquidity. Similarly, large Portfolio share purchases may adversely affect the Portfolio’s performance to the extent that the Portfolio is delayed in investing new cash and is required to maintain a larger cash position than it ordinarily would. These transactions may also accelerate the realization of taxable income to shareholders if such sales of investments resulted in gains, and may also increase transaction costs. In addition, a large redemption could result in the Portfolio’s current expenses being allocated over a smaller asset base, leading to an increase in the Portfolio’s expense ratio.

Management Risk.  A strategy used by the Sub-Adviser may fail to produce the intended results.

Portfolio Turnover Rate Risk.  A high rate of portfolio turnover (100% or more) involves correspondingly greater expenses which must be borne by the Portfolio and its shareholders, and is also likely to result in short-term capital gains taxable to shareholders.

Underlying ETF Risk.  The Portfolio may invest in Underlying ETFs subject to statutory limitations prescribed by the Investment Company Act, or exemptive relief thereunder. An investment in an Underlying ETF generally presents the same primary risks as an investment in a conventional fund (i.e., one that is not exchange-traded) that has the same investment objectives, strategies and policies. In addition, an ETF may fail to accurately track the market segment or index that underlies its investment objective; however, the market price of the Underlying ETF’s shares may trade at a premium or a discount to their net asset value. The price of an Underlying ETF can fluctuate, and the Portfolio could lose money investing in an Underlying ETF.

Principal Risks of the Underlying Funds

Credit/Default Risk.  An issuer or guarantor of fixed income securities held by an Underlying Fund (which may have low credit ratings) may default on its obligation to pay interest and repay principal or default on any other obligation. Additionally, the credit quality of securities may deteriorate rapidly, which may impair an Underlying Fund’s liquidity and cause significant deterioration in NAV. These risks are more pronounced in connection with an Underlying Fund’s investments in non-investment grade fixed income securities.

Derivatives Risk.  An Underlying Fund’s use of options, forwards, futures, swaps, structured securities and other derivative instruments may result in losses. These instruments, which may pose risks in addition to and greater than those associated with investing directly in securities, currencies or other instruments, may be illiquid or less liquid, volatile, difficult to price and leveraged so that small changes in the value of the underlying instruments may produce disproportionate losses to the Underlying Fund. Certain derivatives are also subject to counterparty risk, which is the risk that the other party in the transaction will not fulfill its contractual obligations. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with investments in more traditional securities and instruments.

Foreign and Emerging Countries Risk.  Foreign securities may be subject to risk of loss because of more or less foreign government regulation, less public information and less economic, political and social stability in the countries in which the Portfolio invests. The imposition of exchange controls, sanctions, confiscations, trade restrictions (including tariffs) and other government restrictions by the United States and other governments, or from problems in share registration, settlement or custody, may also result in losses. Foreign risk also involves the risk of negative foreign currency rate fluctuations, which may cause the value of securities denominated in such foreign currency (or other instruments through which an Underlying Fund has exposure to foreign currencies) to decline in value. Currency exchange rates may fluctuate significantly over short periods of time. These risks may be more pronounced in connection with the Underlying Fund’s investments in securities of issuers located in emerging countries.

Geographic Risk.  If an Underlying Fund focuses its investments in issuers located in a particular country or region, the Underlying Fund may be subjected, to a greater extent than if investments were less focused, to the risks of volatile economic cycles and/or conditions and developments that may be particular to that country or region, such as: adverse securities markets; adverse exchange rates; adverse social, political, regulatory, economic, business, environmental or other developments; or natural disasters.

Interest Rate Risk.  When interest rates increase, fixed income securities or instruments held by an Underlying Fund will generally decline in value. Long-term fixed income securities or instruments will normally have more price volatility because of this risk than short-term fixed income securities or instruments. The risks associated with increasing rates are heightened given that interest rates are near historic lows, but may be expected to increase in the future with unpredictable effects on the markets and an Underlying Fund’s investments. Fluctuations in interest rates may also affect the liquidity of fixed income securities and instruments held by an Underlying Fund.

Leverage Risk.  Borrowing and the use of derivatives may result in leverage and may make an Underlying Fund more volatile. The use of leverage may cause an Underlying Fund to liquidate portfolio positions to satisfy its obligations or to meet asset segregation requirements when it may not be advantageous to do so. The use of leverage by an Underlying Fund can substantially increase the adverse impact to which its investment portfolio may be subject.

Liquidity Risk.  An Underlying Fund may make investments that are illiquid or that may become less liquid in response to market developments or adverse investor perceptions. Illiquid investments may be more difficult to value. Liquidity risk may also refer to the risk that an Underlying Fund will not be able to pay redemption proceeds within the allowable time period because of unusual market conditions, an unusually high volume of redemption requests or other reasons. To meet redemption requests, an Underlying Fund may be forced to sell securities, at an unfavorable time and/or under unfavorable conditions. Liquidity risk may be the result of, among other things, the reduced number and capacity of traditional market participants to make a market in fixed income securities or the lack of an active market. The potential for liquidity risk may be magnified by a rising interest rate environment or other circumstances where investor redemptions from fixed income mutual funds may be higher than normal, potentially causing increased supply in the market due to selling activity.

Market Risk.  The value of the securities in which an Underlying Fund invests may go up or down in response to the prospects of individual companies, particular sectors or governments and/or general economic conditions throughout the world due to increasingly interconnected global economies and financial markets.

Mid-Cap and Small-Cap Risk.  Certain of the Underlying Funds may make investments mid-capitalization and small-capitalization companies involve greater risks than those associated with larger, more established companies. These securities may be subject to more abrupt or erratic price movements and may lack sufficient market liquidity, and these issuers often face greater business risks.

Mortgage-Backed and Other Asset-Backed Securities Risk.  Mortgage-related and other asset-backed securities are subject to certain additional risks, including “extension risk” (i.e., in periods of rising interest rates, issuers may pay principal later than expected) and “prepayment risk” (i.e., in periods of declining interest rates, issuers may pay principal more quickly than expected, causing an Underlying Fund to reinvest proceeds at lower prevailing interest rates). Mortgage-backed securities offered by non-governmental issuers are subject to other risks as well, including failures of private insurers to meet their obligations and unexpectedly high rates of default on the mortgages backing the securities. Other asset-backed securities are subject to risks similar to those associated with mortgage-backed securities, as well as risks associated with the nature and servicing of the assets backing the securities. Asset-backed securities may not have the benefit of a security interest in collateral comparable to that of mortgage assets, resulting in additional credit risk.

Non-Investment Grade Investments Risk.  Non-investment grade fixed income securities and unrated securities of comparable credit quality (commonly known as “junk bonds”) are considered speculative and are subject to the increased risk of an issuer’s inability to meet principal and interest payment obligations. These securities may be subject to greater price volatility due to such factors as specific issuer developments, interest rate sensitivity, negative perceptions of the junk bond markets generally and less liquidity.

Stock Risk.  Stock prices have historically risen and fallen in periodic cycles. U.S. and foreign stock markets have experienced periods of substantial price volatility in the past and may do so again in the future.

U.S. Government Securities Risk.  The U.S. government may not provide financial support to U.S. government agencies, instrumentalities or sponsored enterprises if it is not obligated to do so by law. U.S. Government Securities issued by those agencies, instrumentalities and sponsored enterprises, including those issued by the Federal National Mortgage Association (“Fannie Mae”), Federal Home Loan Mortgage Corporation (“Freddie Mac”) and the Federal Home Loan Banks, are neither issued nor guaranteed by the U.S. Treasury and, therefore, are not backed by the full faith and credit of the United States. The maximum potential liability of the issuers of some U.S. Government Securities held by an Underlying Fund may greatly exceed their current resources, including any legal right to support from the U.S. Treasury. It is possible that issuers of U.S. Government Securities will not have the funds to meet their payment obligations in the future.

Performance

Effective August 22, 2016, the Madison Target Retirement 2020 Fund, a series of Madison Funds (the “Predecessor Fund”), was reorganized into the Portfolio. As accounting successor to the Predecessor Fund, the Portfolio has assumed the Predecessor Fund’s historical performance. Therefore, the performance information shown below for periods prior to August 22, 2016 is that of the Predecessor Fund. The returns presented for the Portfolio for periods prior to August 29, 2014 reflect the performance of the Madison Target Retirement 2020 Fund’s Class I Shares, a series of Ultra Series Fund (the “Ultra Predecessor Fund”). As of August 29, 2014, the inception date of the Predecessor Fund, the Ultra Predecessor Fund exchanged in kind substantially all of its portfolio holdings for Class R6 shares of the Predecessor Fund. As a result, the Predecessor Fund assumed the performance of the Ultra Predecessor Fund.

The bar chart and table below provide an indication of the risks of investing in the Portfolio by showing: (a) changes in the performance of the Portfolio's Class R6 Shares from year to year; and (b) how the average annual total returns of the Portfolio's Class R6 Shares compare to those of a broad-based securities market index. The Portfolio has different fees and expenses from those of the Predecessor Fund and would, therefore, have had different performance results. Past performance of the Portfolio, before and after taxes, is not necessarily an indication of how the Portfolio will perform in the future. Performance information for the Portfolio is available at no cost at www.gsamfunds.com/performance or by calling the appropriate phone number on the back cover of the Prospectus.

Because the Predecessor Fund did not offer Class A, Institutional, Service, Investor and Class R Shares, and the Class A, Institutional, Service, Investor and Class R Shares of the Portfolio have not operated for a full calendar year as of the date of the Prospectus, no performance information is shown for those share classes.

Performance reflects applicable fee waivers and/or expense limitations in effect during the periods shown.

TOTAL RETURN CALENDAR YEAR (CLASS R6)

The total return for Class R6 Shares for the 9-month period ended September 30, 2017 was 6.28%.

Best Quarter
Q2 ‘09          +15.29%

Worst Quarter
Q4 ‘08          –19.67%

AVERAGE ANNUAL TOTAL RETURNS

For the period ended December 31, 2016

Average Annual Total Returns - Goldman Sachs Target Date 2020 Portfolio	1 Year	5 Years	Since Inception	Inception Date
Class R6	5.76%	6.59%	2.44%	Oct. 01, 2007
Class R6 | Returns After Taxes on Distributions	3.98%	6.23%	2.25%	Oct. 01, 2007
Class R6 | Returns After Taxes on Distributions and Sale of Portfolio Shares	4.05%	5.09%	1.86%	Oct. 01, 2007
S&P Target Date To 2020 Index (reflects no deduction for sales charges, account fees, expenses or taxes)	6.50%	6.49%	3.69%

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. In addition, the after-tax returns shown are not relevant to investors who hold Portfolio shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts.

[1] The Portfolio’s “Other Expenses” have been restated to reflect expenses expected to be incurred during the current fiscal year.

[2] The Total Annual Portfolio Operating Expenses do not correlate to the ratios of the net and total expenses to average net assets provided in the Financial Highlights, which reflect the operating expenses of the Portfolio and do not include Acquired (Underlying) Fund Fees and Expenses.

[3] The Investment Adviser has agreed to reduce or limit “Other Expenses” (excluding acquired (underlying) fund fees and expenses, transfer agency fees and expenses, service fees, shareholder administration fees, taxes, interest, brokerage fees, expenses of shareholder meetings, litigation and indemnification, and extraordinary expenses) to 0.024% of the Portfolio’s average daily net assets. Additionally, Goldman Sachs & Co. LLC (“Goldman Sachs”), the Portfolio’s transfer agent, has agreed to waive a portion of its transfer agency fee (a component of “Other Expenses”) equal to 0.01% as an annual percentage rate of the average daily net assets attributable to Class R6 Shares of the Portfolio. These arrangements will remain in effect through at least December 29, 2018, and prior to such date, the Investment Adviser and Goldman Sachs (as applicable) may not terminate the arrangements without the approval of the Board of Trustees.

XML

Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Registrant Name

dei_EntityRegistrantName

Goldman Sachs Trust II

Prospectus Date

rr_ProspectusDate

May 21, 2018

Goldman Sachs Target Date 2020 Portfolio

Risk/Return:

rr_RiskReturnAbstract

Risk/Return [Heading]

rr_RiskReturnHeading

Goldman Sachs Target Date 2020 Portfolio—Summary

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Goldman Sachs Target Date 2020 Portfolio (the “Portfolio”) seeks to provide capital appreciation and current income consistent with its current asset allocation.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses of the Portfolio

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 Portfolio. You may qualify for sales charge discounts on purchases of Class A Shares if you invest at least $50,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 82 and in Appendix C—Additional Information About Sales Charge Variations, Waivers and Discounts on page 126 of the Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-133 of the Portfolio’s Statement of Additional Information (“SAI”).

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees
(fees paid directly from your investment)

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Portfolio Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

December 29, 2018

Portfolio Turnover [Heading]

rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block]

rr_PortfolioTurnoverTextBlock

The Portfolio may pay transaction costs when it buys and sells securities or instruments (i.e., "turns over" its portfolio). A high rate of portfolio turnover may result in increased transaction costs, including brokerage commissions, which must be borne by the Portfolio and its shareholders, and is also likely to result in higher short-term capital gains for taxable shareholders. These costs are not reflected in annual fund operating expenses or in the expense example above, but are reflected in the Portfolio's performance. The Portfolio's portfolio turnover rate for the fiscal period ended August 31, 2017 was 189% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

189.00%

Expense Breakpoint Discounts [Text]

rr_ExpenseBreakpointDiscounts

You may qualify for sales charge discounts on purchases of Class A Shares if you invest at least $50,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 82 and in Appendix C—Additional Information About Sales Charge Variations, Waivers and Discounts on page 126 of the Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-133 of the Portfolio’s Statement of Additional Information (“SAI”).

Expense Breakpoint, Minimum Investment Required [Amount]

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

$ 50,000

Expenses Restated to Reflect Current [Text]

rr_ExpensesRestatedToReflectCurrent

The Portfolio’s "Other Expenses" have been restated to reflect expenses expected to be incurred during the current fiscal year.

Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text]

rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees

The Total Annual Portfolio Operating Expenses do not correlate to the ratios of the net and total expenses to average net assets provided in the Financial Highlights, which reflect the operating expenses of the Portfolio and do not include Acquired (Underlying) Fund Fees and Expenses.

Expense Example [Heading]

rr_ExpenseExampleHeading

Expense Example

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This Example is intended to help you compare the cost of investing in the Portfolio with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in Class A, Institutional, Service, Investor, Class R and/or Class R6 Shares of the Portfolio for the time periods indicated and then redeem all of your Class A, Institutional, Service, Investor, Class R and/or Class R6 Shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Portfolio's operating expenses remain the same (except that the Example incorporates the fee waiver and expense limitation arrangements for only the first year). Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Strategy [Heading]

rr_StrategyHeading

Principal Strategy

Strategy Narrative [Text Block]

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The Portfolio employs an asset allocation strategy designed for investors who plan to retire and to begin gradually withdrawing their investment from the Portfolio beginning in approximately 2020 (the “Target Date”). The Portfolio is managed for an investor planning to retire at the age of 65 on or around the Target Date.

The Portfolio generally seeks to achieve its investment objective by investing in shares of exchange-traded funds (“Underlying ETFs”) and other registered investment companies (collectively, the “Underlying Funds”), according to an asset allocation strategy, developed by Madison Asset Management, LLC (the “Sub-Adviser”) who is unaffiliated with the Investment Adviser, for investors planning to retire in or within a few years of 2020. Over time, the Portfolio’s asset allocation will become more conservative until it reaches approximately 10-30% in equity funds and 70-90% in fixed income funds at the Target Date as illustrated in the graph below. After the Target Date, and as also illustrated in the graph below, the Portfolio’s asset allocation targets are expected to remain within these approximate ranges. The graph below applies to each Goldman Sachs Target Date Portfolio identified in the Prospectus.



The asset allocation strategy is designed to reduce the volatility of investment returns in the later years while still providing the potential for higher total returns over the target period. Market conditions and the perceived value of securities will change as the investor moves across the glide path. Although the actual allocations may vary, the chart below illustrates the expected strategic asset allocation of the glide path and the tactical allocation ranges of the core asset classes and sub-asset classes.

YEARS TO TARGET DATE	5	0	–5	–10
Strategic Allocations
Equity	38%	20%	20%	20%
US Equity	26%	14%	14%	14%
Non-US Developed Equities	11%	6%	6%	6%
Fixed Income	63%	80%	80%	80%
Tactical Allocation Ranges
Equity	28-48%	10-30%	10-30%	10-30%
US Equity	17-43%	6-27%	6-27%	6-27%
Non-US Equities	3-19%	1-12%	1-12%	1-12%
Fixed Income	53-73%	70-90%	70-90%	70-90%
Sub-Asset Classes and Alternatives
Emerging Markets Equities	0-10%	0-6%	0-6%	0-6%
Real Estate	0-10%	0-10%	0-10%	0-10%
Commodities	0-10%	0-10%	0-10%	0-10%
Other Alternative Strategies	0-10%	0-10%	0-10%	0-10%

Note: Above allocations may not sum to total due to rounding.

On a periodic basis, the Sub-Adviser will evaluate and may revise the Portfolio’s asset allocation, including revising the asset class weightings and adding and/or removing Underlying Funds. There will be times when the perceived value of equity and/or fixed income securities are stretched (or depressed) and the opportunity to proactively protect against (or take advantage of) these opportunities necessitates an ability to deviate from the glide path’s strategic target. In order to attempt to capitalize on these periodic opportunities, the Sub-Adviser established a “tactical allocation range” that allows flexibility to increase or decrease exposure from the glide path’s strategic allocations. As a result, the Portfolio’s equity and fixed income asset allocation targets may range within the bounds of this tactical allocation range as illustrated in the chart above depending on the Sub-Adviser’s views of the appropriate mix of the Portfolio’s asset allocation based on then-current economic, market or other conditions, or factors unique to the Portfolio. Certain sub-asset classes, like real estate, commodities, and other alternative strategies, may be invested in using the tactical allocation range illustrated in the table above. The Sub-Adviser may also use the tactical allocation range to invest in certain other sub-asset classes within fixed income such as: domestic high yield non-investment grade securities (commonly referred to as “junk bonds”), inflation-linked securities, securities issued by foreign corporate and governmental issuers, sovereign and corporate debt securities of issuers in emerging market countries, convertible securities, and preferred stock. The Sub-Adviser will also monitor the Underlying Funds on an ongoing basis and may increase or decrease the Portfolio’s investment in one or more Underlying Funds. The Underlying Fund selections are made based on several considerations, including the Portfolio’s style or asset class exposures, portfolio characteristics, risk profile, and investment process. With regard to investments in Underlying Funds that invest in debt securities, the Sub-Adviser seeks to select portfolios of securities with long-, intermediate- and short-term maturities. Although the Portfolio does not intend to concentrate its investments in a particular industry, the Portfolio may indirectly concentrate in a particular industry or group of industries through its aggregate investment in one or more Underlying Funds. The particular Underlying Funds in which the Portfolio may invest and the Portfolio’s targets and ranges will change from time to time without shareholder approval or notice.

The Sub-Adviser’s strategy is intended to represent a conservative investment strategy. The Sub-Adviser’s expectation is that the Portfolio may participate in market appreciation during bull markets and experience something less than full participation during bear markets compared with other funds holding more speculative and volatile securities. There is no assurance that the Sub-Adviser’s expectations regarding this investment strategy will be realized.

Although the Portfolio expects to pursue its investment objective utilizing its principal investment strategies regardless of market conditions, the Portfolio may invest up to 100% in money market instruments. To the extent the Portfolio engages in this temporary defensive position, the Portfolio’s ability to achieve its investment objective may be diminished.

Management Process

The Investment Adviser and the Portfolio have received an exemptive order from the Securities and Exchange Commission (“SEC”). Under the exemptive order, the Investment Adviser has the ultimate responsibility, subject to oversight by the Portfolio’s Board of Trustees, to oversee the Sub-Adviser and recommend its hiring, termination and replacement. The initial shareholder of the Portfolio approved the Portfolio’s operation in this manner and reliance by the Portfolio on this exemptive order.

Additional Information

The Portfolio’s benchmark index is the S&P Target Date To 2020 Index (the “Index”).

Risk [Heading]

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Principal Risks of the Portfolio

Risk Narrative [Text Block]

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Loss of money is a risk of investing in the Portfolio. An investment in the Portfolio is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any government agency. The Portfolio should not be relied upon as a complete investment program. Stated allocations may be subject to change. There can be no assurance that the Portfolio will achieve its investment objective. Investments in the Portfolio involve substantial risks which prospective investors should consider carefully before investing. Investors should also consider, in addition to his or her age or retirement date, other factors, including the investor’s risk tolerance, personal circumstances, and complete financial situation.

Asset Allocation Risk.  The Portfolio’s allocations to various asset classes and to the Underlying Funds may cause the Portfolio to underperform other funds with a similar investment objective.

Expenses.  By investing in the Underlying Funds indirectly through the Portfolio, the investor will incur not only a proportionate share of the expenses of the Underlying Funds held by the Portfolio (including operating costs and investment management fees), but also expenses of the Portfolio.

Inadequate Retirement Income.  An investment in the Portfolio is not guaranteed, and the Portfolio may experience losses, including losses near, at, or after the Target Date. There is no guarantee that the Portfolio will achieve sufficient capital appreciation to provide adequate income at and through retirement. Moreover, there is no guarantee that the Portfolio’s performance will keep pace with or exceed the rate of inflation, which may reduce the value of your investment over time.

Investing in the Underlying Funds.  The investments of the Portfolio may be concentrated in one or more Underlying Funds (including ETFs and other registered investment companies) subject to statutory limitations prescribed by the Investment Company Act of 1940, as amended (the "Investment Company Act"), or exemptive relief thereunder. The Portfolio's investment performance is directly related to the investment performance of the Underlying Funds it holds. The Portfolio is subject to the risk factors associated with the investments of the Underlying Funds in direct proportion to the amount of assets allocated to each. If the Portfolio has a relative concentration of its portfolio in a single Underlying Fund, it may be more susceptible to adverse developments affecting that Underlying Fund, and may be more susceptible to losses because of these developments.

Investments of the Underlying Funds.  Because the Portfolio invests in the Underlying Funds, the Portfolio’s shareholders will be affected by the investment policies and practices of the Underlying Funds in direct proportion to the amount of assets the Portfolio allocates to those Underlying Funds. A strategy used by the Underlying Funds may fail to produce the intended results.

Large Shareholder Transactions Risk.  The Portfolio may experience adverse effects when certain large shareholders purchase or redeem large amounts of shares of the Portfolio. Such large shareholder redemptions may cause the Portfolio to sell portfolio securities at times when it would not otherwise do so, which may negatively impact the Portfolio’s NAV and liquidity. Similarly, large Portfolio share purchases may adversely affect the Portfolio’s performance to the extent that the Portfolio is delayed in investing new cash and is required to maintain a larger cash position than it ordinarily would. These transactions may also accelerate the realization of taxable income to shareholders if such sales of investments resulted in gains, and may also increase transaction costs. In addition, a large redemption could result in the Portfolio’s current expenses being allocated over a smaller asset base, leading to an increase in the Portfolio’s expense ratio.

Management Risk.  A strategy used by the Sub-Adviser may fail to produce the intended results.

Portfolio Turnover Rate Risk.  A high rate of portfolio turnover (100% or more) involves correspondingly greater expenses which must be borne by the Portfolio and its shareholders, and is also likely to result in short-term capital gains taxable to shareholders.

Underlying ETF Risk.  The Portfolio may invest in Underlying ETFs subject to statutory limitations prescribed by the Investment Company Act, or exemptive relief thereunder. An investment in an Underlying ETF generally presents the same primary risks as an investment in a conventional fund (i.e., one that is not exchange-traded) that has the same investment objectives, strategies and policies. In addition, an ETF may fail to accurately track the market segment or index that underlies its investment objective; however, the market price of the Underlying ETF’s shares may trade at a premium or a discount to their net asset value. The price of an Underlying ETF can fluctuate, and the Portfolio could lose money investing in an Underlying ETF.

Principal Risks of the Underlying Funds

Credit/Default Risk.  An issuer or guarantor of fixed income securities held by an Underlying Fund (which may have low credit ratings) may default on its obligation to pay interest and repay principal or default on any other obligation. Additionally, the credit quality of securities may deteriorate rapidly, which may impair an Underlying Fund’s liquidity and cause significant deterioration in NAV. These risks are more pronounced in connection with an Underlying Fund’s investments in non-investment grade fixed income securities.

Derivatives Risk.  An Underlying Fund’s use of options, forwards, futures, swaps, structured securities and other derivative instruments may result in losses. These instruments, which may pose risks in addition to and greater than those associated with investing directly in securities, currencies or other instruments, may be illiquid or less liquid, volatile, difficult to price and leveraged so that small changes in the value of the underlying instruments may produce disproportionate losses to the Underlying Fund. Certain derivatives are also subject to counterparty risk, which is the risk that the other party in the transaction will not fulfill its contractual obligations. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with investments in more traditional securities and instruments.

Foreign and Emerging Countries Risk.  Foreign securities may be subject to risk of loss because of more or less foreign government regulation, less public information and less economic, political and social stability in the countries in which the Portfolio invests. The imposition of exchange controls, sanctions, confiscations, trade restrictions (including tariffs) and other government restrictions by the United States and other governments, or from problems in share registration, settlement or custody, may also result in losses. Foreign risk also involves the risk of negative foreign currency rate fluctuations, which may cause the value of securities denominated in such foreign currency (or other instruments through which an Underlying Fund has exposure to foreign currencies) to decline in value. Currency exchange rates may fluctuate significantly over short periods of time. These risks may be more pronounced in connection with the Underlying Fund’s investments in securities of issuers located in emerging countries.

Geographic Risk.  If an Underlying Fund focuses its investments in issuers located in a particular country or region, the Underlying Fund may be subjected, to a greater extent than if investments were less focused, to the risks of volatile economic cycles and/or conditions and developments that may be particular to that country or region, such as: adverse securities markets; adverse exchange rates; adverse social, political, regulatory, economic, business, environmental or other developments; or natural disasters.

Interest Rate Risk.  When interest rates increase, fixed income securities or instruments held by an Underlying Fund will generally decline in value. Long-term fixed income securities or instruments will normally have more price volatility because of this risk than short-term fixed income securities or instruments. The risks associated with increasing rates are heightened given that interest rates are near historic lows, but may be expected to increase in the future with unpredictable effects on the markets and an Underlying Fund’s investments. Fluctuations in interest rates may also affect the liquidity of fixed income securities and instruments held by an Underlying Fund.

Leverage Risk.  Borrowing and the use of derivatives may result in leverage and may make an Underlying Fund more volatile. The use of leverage may cause an Underlying Fund to liquidate portfolio positions to satisfy its obligations or to meet asset segregation requirements when it may not be advantageous to do so. The use of leverage by an Underlying Fund can substantially increase the adverse impact to which its investment portfolio may be subject.

Liquidity Risk.  An Underlying Fund may make investments that are illiquid or that may become less liquid in response to market developments or adverse investor perceptions. Illiquid investments may be more difficult to value. Liquidity risk may also refer to the risk that an Underlying Fund will not be able to pay redemption proceeds within the allowable time period because of unusual market conditions, an unusually high volume of redemption requests or other reasons. To meet redemption requests, an Underlying Fund may be forced to sell securities, at an unfavorable time and/or under unfavorable conditions. Liquidity risk may be the result of, among other things, the reduced number and capacity of traditional market participants to make a market in fixed income securities or the lack of an active market. The potential for liquidity risk may be magnified by a rising interest rate environment or other circumstances where investor redemptions from fixed income mutual funds may be higher than normal, potentially causing increased supply in the market due to selling activity.

Market Risk.  The value of the securities in which an Underlying Fund invests may go up or down in response to the prospects of individual companies, particular sectors or governments and/or general economic conditions throughout the world due to increasingly interconnected global economies and financial markets.

Mid-Cap and Small-Cap Risk.  Certain of the Underlying Funds may make investments mid-capitalization and small-capitalization companies involve greater risks than those associated with larger, more established companies. These securities may be subject to more abrupt or erratic price movements and may lack sufficient market liquidity, and these issuers often face greater business risks.

Mortgage-Backed and Other Asset-Backed Securities Risk.  Mortgage-related and other asset-backed securities are subject to certain additional risks, including “extension risk” (i.e., in periods of rising interest rates, issuers may pay principal later than expected) and “prepayment risk” (i.e., in periods of declining interest rates, issuers may pay principal more quickly than expected, causing an Underlying Fund to reinvest proceeds at lower prevailing interest rates). Mortgage-backed securities offered by non-governmental issuers are subject to other risks as well, including failures of private insurers to meet their obligations and unexpectedly high rates of default on the mortgages backing the securities. Other asset-backed securities are subject to risks similar to those associated with mortgage-backed securities, as well as risks associated with the nature and servicing of the assets backing the securities. Asset-backed securities may not have the benefit of a security interest in collateral comparable to that of mortgage assets, resulting in additional credit risk.

Non-Investment Grade Investments Risk.  Non-investment grade fixed income securities and unrated securities of comparable credit quality (commonly known as “junk bonds”) are considered speculative and are subject to the increased risk of an issuer’s inability to meet principal and interest payment obligations. These securities may be subject to greater price volatility due to such factors as specific issuer developments, interest rate sensitivity, negative perceptions of the junk bond markets generally and less liquidity.

Stock Risk.  Stock prices have historically risen and fallen in periodic cycles. U.S. and foreign stock markets have experienced periods of substantial price volatility in the past and may do so again in the future.

U.S. Government Securities Risk.  The U.S. government may not provide financial support to U.S. government agencies, instrumentalities or sponsored enterprises if it is not obligated to do so by law. U.S. Government Securities issued by those agencies, instrumentalities and sponsored enterprises, including those issued by the Federal National Mortgage Association (“Fannie Mae”), Federal Home Loan Mortgage Corporation (“Freddie Mac”) and the Federal Home Loan Banks, are neither issued nor guaranteed by the U.S. Treasury and, therefore, are not backed by the full faith and credit of the United States. The maximum potential liability of the issuers of some U.S. Government Securities held by an Underlying Fund may greatly exceed their current resources, including any legal right to support from the U.S. Treasury. It is possible that issuers of U.S. Government Securities will not have the funds to meet their payment obligations in the future.

Risk Lose Money [Text]

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Loss of money is a risk of investing in the Portfolio.

Risk Not Insured Depository Institution [Text]

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An investment in the Portfolio is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any government agency.

Bar Chart and Performance Table [Heading]

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Performance

Performance Narrative [Text Block]

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Effective August 22, 2016, the Madison Target Retirement 2020 Fund, a series of Madison Funds (the “Predecessor Fund”), was reorganized into the Portfolio. As accounting successor to the Predecessor Fund, the Portfolio has assumed the Predecessor Fund’s historical performance. Therefore, the performance information shown below for periods prior to August 22, 2016 is that of the Predecessor Fund. The returns presented for the Portfolio for periods prior to August 29, 2014 reflect the performance of the Madison Target Retirement 2020 Fund’s Class I Shares, a series of Ultra Series Fund (the “Ultra Predecessor Fund”). As of August 29, 2014, the inception date of the Predecessor Fund, the Ultra Predecessor Fund exchanged in kind substantially all of its portfolio holdings for Class R6 shares of the Predecessor Fund. As a result, the Predecessor Fund assumed the performance of the Ultra Predecessor Fund.

The bar chart and table below provide an indication of the risks of investing in the Portfolio by showing: (a) changes in the performance of the Portfolio's Class R6 Shares from year to year; and (b) how the average annual total returns of the Portfolio's Class R6 Shares compare to those of a broad-based securities market index. The Portfolio has different fees and expenses from those of the Predecessor Fund and would, therefore, have had different performance results. Past performance of the Portfolio, before and after taxes, is not necessarily an indication of how the Portfolio will perform in the future. Performance information for the Portfolio is available at no cost at www.gsamfunds.com/performance or by calling the appropriate phone number on the back cover of the Prospectus.

Because the Predecessor Fund did not offer Class A, Institutional, Service, Investor and Class R Shares, and the Class A, Institutional, Service, Investor and Class R Shares of the Portfolio have not operated for a full calendar year as of the date of the Prospectus, no performance information is shown for those share classes.

Performance reflects applicable fee waivers and/or expense limitations in effect during the periods shown.

Performance Information Illustrates Variability of Returns [Text]

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The bar chart and table below provide an indication of the risks of investing in the Portfolio by showing: (a) changes in the performance of the Portfolio’s Class R6 Shares from year to year; and (b) how the average annual total returns of the Portfolio’s Class R6 Shares compare to those of a broad-based securities market index.

Performance One Year or Less [Text]

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Because the Predecessor Fund did not offer Class A, Institutional, Service, Investor and Class R Shares, and the Class A, Institutional, Service, Investor and Class R Shares of the Portfolio have not operated for a full calendar year as of the date of the Prospectus, no performance information is shown for those share classes.

Performance Availability Website Address [Text]

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www.gsamfunds.com/performance

Performance Past Does Not Indicate Future [Text]

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Past performance of the Portfolio, before and after taxes, is not necessarily an indication of how the Portfolio will perform in the future.

Bar Chart [Heading]

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TOTAL RETURN CALENDAR YEAR (CLASS R6)

Bar Chart Closing [Text Block]

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The total return for Class R6 Shares for the 9-month period ended September 30, 2017 was 6.28%.

Best Quarter
Q2 ‘09          +15.29%

Worst Quarter
Q4 ‘08          –19.67%

Performance Table Heading

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AVERAGE ANNUAL TOTAL RETURNS

For the period ended December 31, 2016

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. In addition, the after-tax returns shown are not relevant to investors who hold Portfolio shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts.

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. In addition, the after-tax returns shown are not relevant to investors who hold Portfolio shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts.

Goldman Sachs Target Date 2020 Portfolio | Class A

Risk/Return:

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Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

5.50%

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

0.85%

Other Expenses

rr_OtherExpensesOverAssets

0.85%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

1.52%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(0.65%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.87%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 634

3 Years

rr_ExpenseExampleYear03

944

5 Years

rr_ExpenseExampleYear05

1,275

10 Years

rr_ExpenseExampleYear10

$ 2,210

Goldman Sachs Target Date 2020 Portfolio | Institutional

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

0.71%

Other Expenses

rr_OtherExpensesOverAssets

0.71%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

1.13%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(0.65%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.48%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 49

3 Years

rr_ExpenseExampleYear03

295

5 Years

rr_ExpenseExampleYear05

559

10 Years

rr_ExpenseExampleYear10

$ 1,316

Goldman Sachs Target Date 2020 Portfolio | Service

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

0.25%

All Other Expenses

rr_Component2OtherExpensesOverAssets

0.71%

Other Expenses

rr_OtherExpensesOverAssets

0.96%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

1.63%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(0.65%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.98%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 100

3 Years

rr_ExpenseExampleYear03

451

5 Years

rr_ExpenseExampleYear05

825

10 Years

rr_ExpenseExampleYear10

$ 1,878

Goldman Sachs Target Date 2020 Portfolio | Investor

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

0.85%

Other Expenses

rr_OtherExpensesOverAssets

0.85%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

1.27%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(0.65%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.62%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 63

3 Years

rr_ExpenseExampleYear03

338

5 Years

rr_ExpenseExampleYear05

634

10 Years

rr_ExpenseExampleYear10

$ 1,477

Goldman Sachs Target Date 2020 Portfolio | Class R

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.50%

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

0.85%

Other Expenses

rr_OtherExpensesOverAssets

0.85%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

1.77%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(0.65%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

1.12%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 114

3 Years

rr_ExpenseExampleYear03

494

5 Years

rr_ExpenseExampleYear05

899

10 Years

rr_ExpenseExampleYear10

$ 2,030

Goldman Sachs Target Date 2020 Portfolio | Class R6

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

0.70%

Other Expenses

rr_OtherExpensesOverAssets

0.70%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

1.12%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(0.65%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.47%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 48

3 Years

rr_ExpenseExampleYear03

291

5 Years

rr_ExpenseExampleYear05

554

10 Years

rr_ExpenseExampleYear10

$ 1,305

2008

rr_AnnualReturn2008

(35.31%)

2009

rr_AnnualReturn2009

28.93%

2010

rr_AnnualReturn2010

9.01%

2011

rr_AnnualReturn2011

2.11%

2012

rr_AnnualReturn2012

9.98%

2013

rr_AnnualReturn2013

10.94%

2014

rr_AnnualReturn2014

7.09%

2015

rr_AnnualReturn2015

(0.37%)

2016

rr_AnnualReturn2016

5.76%

Year to Date Return, Label

rr_YearToDateReturnLabel

total return

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2017

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

6.28%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Jun. 30, 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

15.29%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2008

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(19.67%)

1 Year

rr_AverageAnnualReturnYear01

5.76%

5 Years

rr_AverageAnnualReturnYear05

6.59%

Since Inception

rr_AverageAnnualReturnSinceInception

2.44%

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 01, 2007

Goldman Sachs Target Date 2020 Portfolio | Returns After Taxes on Distributions | Class R6

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

3.98%

5 Years

rr_AverageAnnualReturnYear05

6.23%

Since Inception

rr_AverageAnnualReturnSinceInception

2.25%

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 01, 2007

Goldman Sachs Target Date 2020 Portfolio | Returns After Taxes on Distributions and Sale of Portfolio Shares | Class R6

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

4.05%

5 Years

rr_AverageAnnualReturnYear05

5.09%

Since Inception

rr_AverageAnnualReturnSinceInception

1.86%

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 01, 2007

Goldman Sachs Target Date 2020 Portfolio | S&P Target Date To 2020 Index (reflects no deduction for sales charges, account fees, expenses or taxes)

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

6.50%

5 Years

rr_AverageAnnualReturnYear05

6.49%

Since Inception

rr_AverageAnnualReturnSinceInception

3.69%

[1] The Portfolio’s “Other Expenses” have been restated to reflect expenses expected to be incurred during the current fiscal year.

[2] The Total Annual Portfolio Operating Expenses do not correlate to the ratios of the net and total expenses to average net assets provided in the Financial Highlights, which reflect the operating expenses of the Portfolio and do not include Acquired (Underlying) Fund Fees and Expenses.

[3] The Investment Adviser has agreed to reduce or limit “Other Expenses” (excluding acquired (underlying) fund fees and expenses, transfer agency fees and expenses, service fees, shareholder administration fees, taxes, interest, brokerage fees, expenses of shareholder meetings, litigation and indemnification, and extraordinary expenses) to 0.024% of the Portfolio’s average daily net assets. Additionally, Goldman Sachs & Co. LLC (“Goldman Sachs”), the Portfolio’s transfer agent, has agreed to waive a portion of its transfer agency fee (a component of “Other Expenses”) equal to 0.01% as an annual percentage rate of the average daily net assets attributable to Class R6 Shares of the Portfolio. These arrangements will remain in effect through at least December 29, 2018, and prior to such date, the Investment Adviser and Goldman Sachs (as applicable) may not terminate the arrangements without the approval of the Board of Trustees.

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Goldman Sachs Target Date 2025 Portfolio

Goldman Sachs Target Date 2025 Portfolio—Summary

Investment Objective

The Goldman Sachs Target Date 2025 Portfolio (the “Portfolio”) seeks to provide capital appreciation and current income consistent with its current asset allocation.

Fees and Expenses of the Portfolio

This table describes the fees and expenses that you may pay if you buy and hold shares of the Portfolio. You may qualify for sales charge discounts on purchases of Class A Shares if you invest at least $50,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 82 and in Appendix C—Additional Information About Sales Charge Variations, Waivers and Discounts on page 126 of the Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-133 of the Portfolio’s Statement of Additional Information (“SAI”).

Shareholder Fees
(fees paid directly from your investment)

Shareholder Fees - Goldman Sachs Target Date 2025 Portfolio	Class A	Institutional	Service	Investor	Class R	Class R6
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.50%	none	none	none	none	none

Annual Portfolio Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Annual Portfolio Operating Expenses - Goldman Sachs Target Date 2025 Portfolio		Class A	Institutional	Service	Investor	Class R	Class R6
Management Fees		0.25%	0.25%	0.25%	0.25%	0.25%	0.25%
Distribution and/or Service (12b-1) Fees		0.25%	none	0.25%	none	0.50%	none
Other Expenses	[1]	2.62%	2.48%	2.73%	2.62%	2.62%	2.47%
Shareholder Administration Fees		none	none	0.25%	none	none	none
All Other Expenses		2.62%	2.48%	2.48%	2.62%	2.62%	2.47%
Acquired (Underlying) Fund Fees and Expenses		0.17%	0.17%	0.17%	0.17%	0.17%	0.17%
Total Annual Portfolio Operating Expenses	[2]	3.29%	2.90%	3.40%	3.04%	3.54%	2.89%
Fee Waiver and Expense Limitation	[3]	(2.42%)	(2.42%)	(2.42%)	(2.42%)	(2.42%)	(2.42%)
Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation	[2]	0.87%	0.48%	0.98%	0.62%	1.12%	0.47%

Expense Example

This Example is intended to help you compare the cost of investing in the Portfolio with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in Class A, Institutional, Service, Investor, Class R and/or Class R6 Shares of the Portfolio for the time periods indicated and then redeem all of your Class A, Institutional, Service, Investor, Class R and/or Class R6 Shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Portfolio’s operating expenses remain the same (except that the Example incorporates the fee waiver and expense limitation arrangements for only the first year). Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example - Goldman Sachs Target Date 2025 Portfolio - USD ($)	1 Year	3 Years	5 Years	10 Years
Class A Shares	634	1,293	1,974	3,782
Institutional Shares	49	668	1,313	3,049
Service Shares	100	819	1,561	3,522
Investor Shares	63	710	1,383	3,184
Class R Shares	114	860	1,629	3,649
Class R6 Shares	48	665	1,308	3,039

Portfolio Turnover

The Portfolio may pay transaction costs when it buys and sells securities or instruments (i.e., “turns over” its portfolio). A high rate of portfolio turnover may result in increased transaction costs, including brokerage commissions, which must be borne by the Portfolio and its shareholders, and is also likely to result in higher short-term capital gains for taxable shareholders. These costs are not reflected in annual fund operating expenses or in the expense example above, but are reflected in the Portfolio’s performance. The Portfolio’s portfolio turnover rate for the fiscal period ended August 31, 2017 was 167% of the average value of its portfolio.

Principal Strategy

The Portfolio employs an asset allocation strategy designed for investors who plan to retire and to begin gradually withdrawing their investment from the Portfolio beginning in approximately 2025 (the “Target Date”). The Portfolio is managed for an investor planning to retire at the age of 65 on or around the Target Date.

The Portfolio generally seeks to achieve its investment objective by investing in shares of exchange-traded funds ("Underlying ETFs") and other registered investment companies (collectively, the "Underlying Funds"), according to an asset allocation strategy, developed by Madison Asset Management, LLC (the "Sub-Adviser") who is unaffiliated with the Investment Adviser, for investors planning to retire in or within a few years of 2025. Over time, the Portfolio's asset allocation will become more conservative until it reaches approximately 10-30% in equity funds and 70-90% in fixed income funds at the Target Date as illustrated in the graph below. After the Target Date, and as also illustrated in the graph below, the Portfolio's asset allocation targets are expected to remain within these approximate ranges. The graph below applies to each Goldman Sachs Target Date Portfolio identified in the Prospectus.



The asset allocation strategy is designed to reduce the volatility of investment returns in the later years while still providing the potential for higher total returns over the target period. Market conditions and the perceived value of securities will change as the investor moves across the glide path. Although the actual allocations may vary, the chart below illustrates the expected strategic asset allocation of the glide path and the tactical allocation ranges of the core asset classes and sub-asset classes.

YEARS TO TARGET DATE	10	5	0	–5	–10
Strategic Allocations
Equity	55%	38%	20%	20%	20%
US Equity	39%	26%	14%	14%	14%
Non-US Developed Equities	17%	11%	6%	6%	6%
Fixed Income	45%	63%	80%	80%	80%
Tactical Allocation Ranges
Equity	45-65%	28-48%	10-30%	10-30%	10-30%
US Equity	27-59%	17-43%	6-27%	6-27%	6-27%
Non-US Equities	5-26%	3-19%	1-12%	1-12%	1-12%
Fixed Income	35-55%	53-73%	70-90%	70-90%	70-90%
Sub-Asset Classes and Alternatives
Emerging Markets Equities	0-13%	0-10%	0-6%	0-6%	0-6%
Real Estate	0-10%	0-10%	0-10%	0-10%	0-10%
Commodities	0-10%	0-10%	0-10%	0-10%	0-10%
Other Alternative Strategies	0-10%	0-10%	0-10%	0-10%	0-10%

Note: Above allocations may not sum to total due to rounding.

On a periodic basis, the Sub-Adviser will evaluate and may revise the Portfolio's asset allocation, including revising the asset class weightings and adding and/or removing Underlying Funds. There will be times when the perceived value of equity and/or fixed income securities are stretched (or depressed) and the opportunity to proactively protect against (or take advantage of) these opportunities necessitates an ability to deviate from the glide path's strategic target. In order to attempt to capitalize on these periodic opportunities, the Sub-Adviser established a "tactical allocation range" that allows flexibility to increase or decrease exposure from the glide path's strategic allocations. As a result, the Portfolio's equity and fixed income asset allocation targets may range within the bounds of this tactical allocation range as illustrated in the chart above depending on the Sub-Adviser's views of the appropriate mix of the Portfolio's asset allocation based on then-current economic, market or other conditions, or factors unique to the Portfolio. Certain sub-asset classes, like real estate, commodities, and other alternative strategies, may be invested in using the tactical allocation range illustrated in the table above. The Sub-Adviser may also use the tactical allocation range to invest in certain other sub-asset classes within fixed income such as: domestic high yield non-investment grade securities (commonly referred to as "junk bonds"), inflation-linked securities, securities issued by foreign corporate and governmental issuers, sovereign and corporate debt securities of issuers in emerging market countries, convertible securities, and preferred stock. The Sub-Adviser will also monitor the Underlying Funds on an ongoing basis and may increase or decrease the Portfolio's investment in one or more Underlying Funds. The Underlying Fund selections are made based on several considerations, including the Portfolio's style or asset class exposures, portfolio characteristics, risk profile, and investment process. With regard to investments in Underlying Funds that invest in debt securities, the Sub-Adviser seeks to select portfolios of securities with long-, intermediate- and short-term maturities. Although the Portfolio does not intend to concentrate its investments in a particular industry, the Portfolio may indirectly concentrate in a particular industry or group of industries through its aggregate investment in one or more Underlying Funds. The particular Underlying Funds in which the Portfolio may invest and the Portfolio's targets and ranges will change from time to time without shareholder approval or notice.

The Sub-Adviser's strategy is intended to represent a conservative investment strategy. The Sub-Adviser's expectation is that the Portfolio may participate in market appreciation during bull markets and experience something less than full participation during bear markets compared with other funds holding more speculative and volatile securities. There is no assurance that the Sub-Adviser's expectations regarding this investment strategy will be realized.

Although the Portfolio expects to pursue its investment objective utilizing its principal investment strategies regardless of market conditions, the Portfolio may invest up to 100% in money market instruments. To the extent the Portfolio engages in this temporary defensive position, the Portfolio's ability to achieve its investment objective may be diminished.

Management Process

The Investment Adviser and the Portfolio have received an exemptive order from the Securities and Exchange Commission ("SEC"). Under the exemptive order, the Investment Adviser has the ultimate responsibility, subject to oversight by the Portfolio's Board of Trustees, to oversee the Sub-Adviser and recommend its hiring, termination and replacement. The initial shareholder of the Portfolio approved the Portfolio's operation in this manner and reliance by the Portfolio on this exemptive order.

Additional Information

The Portfolio's benchmark index is the S&P Target Date To 2025 Index (the "Index").

Principal Risks of the Portfolio

Loss of money is a risk of investing in the Portfolio. An investment in the Portfolio is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any government agency. The Portfolio should not be relied upon as a complete investment program. Stated allocations may be subject to change. There can be no assurance that the Portfolio will achieve its investment objective. Investments in the Portfolio involve substantial risks which prospective investors should consider carefully before investing. Investors should also consider, in addition to his or her age or retirement date, other factors, including the investor’s risk tolerance, personal circumstances, and complete financial situation.

Asset Allocation Risk.  The Portfolio’s allocations to various asset classes and to the Underlying Funds may cause the Portfolio to underperform other funds with a similar investment objective.

Expenses.  By investing in the Underlying Funds indirectly through the Portfolio, the investor will incur not only a proportionate share of the expenses of the Underlying Funds held by the Portfolio (including operating costs and investment management fees), but also expenses of the Portfolio.

Inadequate Retirement Income.  An investment in the Portfolio is not guaranteed, and the Portfolio may experience losses, including losses near, at, or after the Target Date. There is no guarantee that the Portfolio will achieve sufficient capital appreciation to provide adequate income at and through retirement. Moreover, there is no guarantee that the Portfolio’s performance will keep pace with or exceed the rate of inflation, which may reduce the value of your investment over time.

Investing in the Underlying Funds.  The investments of the Portfolio may be concentrated in one or more Underlying Funds (including ETFs and other registered investment companies) subject to statutory limitations prescribed by the Investment Company Act of 1940, as amended (the "Investment Company Act"), or exemptive relief thereunder. The Portfolio's investment performance is directly related to the investment performance of the Underlying Funds it holds. The Portfolio is subject to the risk factors associated with the investments of the Underlying Funds in direct proportion to the amount of assets allocated to each. If the Portfolio has a relative concentration of its portfolio in a single Underlying Fund, it may be more susceptible to adverse developments affecting that Underlying Fund, and may be more susceptible to losses because of these developments.

Investments of the Underlying Funds.  Because the Portfolio invests in the Underlying Funds, the Portfolio’s shareholders will be affected by the investment policies and practices of the Underlying Funds in direct proportion to the amount of assets the Portfolio allocates to those Underlying Funds. A strategy used by the Underlying Funds may fail to produce the intended results.

Large Shareholder Transactions Risk.  The Portfolio may experience adverse effects when certain large shareholders purchase or redeem large amounts of shares of the Portfolio. Such large shareholder redemptions may cause the Portfolio to sell portfolio securities at times when it would not otherwise do so, which may negatively impact the Portfolio’s NAV and liquidity. Similarly, large Portfolio share purchases may adversely affect the Portfolio’s performance to the extent that the Portfolio is delayed in investing new cash and is required to maintain a larger cash position than it ordinarily would. These transactions may also accelerate the realization of taxable income to shareholders if such sales of investments resulted in gains, and may also increase transaction costs. In addition, a large redemption could result in the Portfolio’s current expenses being allocated over a smaller asset base, leading to an increase in the Portfolio’s expense ratio.

Management Risk.  A strategy used by the Sub-Adviser may fail to produce the intended results.

Portfolio Turnover Rate Risk.  A high rate of portfolio turnover (100% or more) involves correspondingly greater expenses which must be borne by the Portfolio and its shareholders, and is also likely to result in short-term capital gains taxable to shareholders.

Underlying ETF Risk.  The Portfolio may invest in Underlying ETFs subject to statutory limitations prescribed by the Investment Company Act, or exemptive relief thereunder. An investment in an Underlying ETF generally presents the same primary risks as an investment in a conventional fund (i.e., one that is not exchange-traded) that has the same investment objectives, strategies and policies. In addition, an ETF may fail to accurately track the market segment or index that underlies its investment objective; however, the market price of the Underlying ETF’s shares may trade at a premium or a discount to their net asset value. The price of an Underlying ETF can fluctuate, and the Portfolio could lose money investing in an Underlying ETF.

Principal Risks of the Underlying Funds

Credit/Default Risk.  An issuer or guarantor of fixed income securities held by an Underlying Fund (which may have low credit ratings) may default on its obligation to pay interest and repay principal or default on any other obligation. Additionally, the credit quality of securities may deteriorate rapidly, which may impair an Underlying Fund’s liquidity and cause significant deterioration in NAV. These risks are more pronounced in connection with an Underlying Fund’s investments in non-investment grade fixed income securities.

Derivatives Risk.  An Underlying Fund’s use of options, forwards, futures, swaps, structured securities and other derivative instruments may result in losses. These instruments, which may pose risks in addition to and greater than those associated with investing directly in securities, currencies or other instruments, may be illiquid or less liquid, volatile, difficult to price and leveraged so that small changes in the value of the underlying instruments may produce disproportionate losses to the Underlying Fund. Certain derivatives are also subject to counterparty risk, which is the risk that the other party in the transaction will not fulfill its contractual obligations. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with investments in more traditional securities and instruments.

Foreign and Emerging Countries Risk.  Foreign securities may be subject to risk of loss because of more or less foreign government regulation, less public information and less economic, political and social stability in the countries in which the Portfolio invests. The imposition of exchange controls, sanctions, confiscations, trade restrictions (including tariffs) and other government restrictions by the United States and other governments, or from problems in share registration, settlement or custody, may also result in losses. Foreign risk also involves the risk of negative foreign currency rate fluctuations, which may cause the value of securities denominated in such foreign currency (or other instruments through which an Underlying Fund has exposure to foreign currencies) to decline in value. Currency exchange rates may fluctuate significantly over short periods of time. These risks may be more pronounced in connection with the Underlying Fund’s investments in securities of issuers located in emerging countries.

Geographic Risk.  If an Underlying Fund focuses its investments in issuers located in a particular country or region, the Underlying Fund may be subjected, to a greater extent than if investments were less focused, to the risks of volatile economic cycles and/or conditions and developments that may be particular to that country or region, such as: adverse securities markets; adverse exchange rates; adverse social, political, regulatory, economic, business, environmental or other developments; or natural disasters.

Interest Rate Risk.  When interest rates increase, fixed income securities or instruments held by an Underlying Fund will generally decline in value. Long-term fixed income securities or instruments will normally have more price volatility because of this risk than short-term fixed income securities or instruments. The risks associated with increasing rates are heightened given that interest rates are near historic lows, but may be expected to increase in the future with unpredictable effects on the markets and an Underlying Fund’s investments. Fluctuations in interest rates may also affect the liquidity of fixed income securities and instruments held by an Underlying Fund.

Leverage Risk.  Borrowing and the use of derivatives may result in leverage and may make an Underlying Fund more volatile. The use of leverage may cause an Underlying Fund to liquidate portfolio positions to satisfy its obligations or to meet asset segregation requirements when it may not be advantageous to do so. The use of leverage by an Underlying Fund can substantially increase the adverse impact to which its investment portfolio may be subject.

Liquidity Risk.  An Underlying Fund may make investments that are illiquid or that may become less liquid in response to market developments or adverse investor perceptions. Illiquid investments may be more difficult to value. Liquidity risk may also refer to the risk that an Underlying Fund will not be able to pay redemption proceeds within the allowable time period because of unusual market conditions, an unusually high volume of redemption requests or other reasons. To meet redemption requests, an Underlying Fund may be forced to sell securities, at an unfavorable time and/or under unfavorable conditions. Liquidity risk may be the result of, among other things, the reduced number and capacity of traditional market participants to make a market in fixed income securities or the lack of an active market. The potential for liquidity risk may be magnified by a rising interest rate environment or other circumstances where investor redemptions from fixed income mutual funds may be higher than normal, potentially causing increased supply in the market due to selling activity.

Market Risk.  The value of the securities in which an Underlying Fund invests may go up or down in response to the prospects of individual companies, particular sectors or governments and/or general economic conditions throughout the world due to increasingly interconnected global economies and financial markets.

Mid-Cap and Small-Cap Risk.  Certain of the Underlying Funds may make investments mid-capitalization and small-capitalization companies involve greater risks than those associated with larger, more established companies. These securities may be subject to more abrupt or erratic price movements and may lack sufficient market liquidity, and these issuers often face greater business risks.

Mortgage-Backed and Other Asset-Backed Securities Risk.  Mortgage-related and other asset-backed securities are subject to certain additional risks, including “extension risk” (i.e., in periods of rising interest rates, issuers may pay principal later than expected) and “prepayment risk” (i.e., in periods of declining interest rates, issuers may pay principal more quickly than expected, causing an Underlying Fund to reinvest proceeds at lower prevailing interest rates). Mortgage-backed securities offered by non-governmental issuers are subject to other risks as well, including failures of private insurers to meet their obligations and unexpectedly high rates of default on the mortgages backing the securities. Other asset-backed securities are subject to risks similar to those associated with mortgage-backed securities, as well as risks associated with the nature and servicing of the assets backing the securities. Asset-backed securities may not have the benefit of a security interest in collateral comparable to that of mortgage assets, resulting in additional credit risk.

Non-Investment Grade Investments Risk.  Non-investment grade fixed income securities and unrated securities of comparable credit quality (commonly known as “junk bonds”) are considered speculative and are subject to the increased risk of an issuer’s inability to meet principal and interest payment obligations. These securities may be subject to greater price volatility due to such factors as specific issuer developments, interest rate sensitivity, negative perceptions of the junk bond markets generally and less liquidity.

Stock Risk.  Stock prices have historically risen and fallen in periodic cycles. U.S. and foreign stock markets have experienced periods of substantial price volatility in the past and may do so again in the future.

U.S. Government Securities Risk.  The U.S. government may not provide financial support to U.S. government agencies, instrumentalities or sponsored enterprises if it is not obligated to do so by law. U.S. Government Securities issued by those agencies, instrumentalities and sponsored enterprises, including those issued by the Federal National Mortgage Association (“Fannie Mae”), Federal Home Loan Mortgage Corporation (“Freddie Mac”) and the Federal Home Loan Banks, are neither issued nor guaranteed by the U.S. Treasury and, therefore, are not backed by the full faith and credit of the United States. The maximum potential liability of the issuers of some U.S. Government Securities held by an Underlying Fund may greatly exceed their current resources, including any legal right to support from the U.S. Treasury. It is possible that issuers of U.S. Government Securities will not have the funds to meet their payment obligations in the future.

Performance

As the Portfolio has not operated for a full calendar year as of the date of the Prospectus, there is no performance information quoted for the Portfolio. Updated performance information is available at no cost at www.gsamfunds.com/performance or by calling the phone number on the back of the Prospectus.

[1] The Portfolio’s “Other Expenses” have been restated to reflect expenses expected to be incurred during the current fiscal year.

[2] The Total Annual Portfolio Operating Expenses do not correlate to the ratios of the net and total expenses to average net assets provided in the Financial Highlights, which reflect the operating expenses of the Portfolio and do not include Acquired (Underlying) Fund Fees and Expenses.

[3] The Investment Adviser has agreed to reduce or limit “Other Expenses” (excluding acquired (underlying) fund fees and expenses, transfer agency fees and expenses, service fees, shareholder administration fees, taxes, interest, brokerage fees, expenses of shareholder meetings, litigation and indemnification, and extraordinary expenses) to 0.014% of the Portfolio’s average daily net assets. Additionally, Goldman Sachs & Co. LLC (“Goldman Sachs”), the Portfolio’s transfer agent, has agreed to waive a portion of its transfer agency fee (a component of “Other Expenses”) equal to 0.01% as an annual percentage rate of the average daily net assets attributable to Class R6 Shares of the Portfolio. These arrangements will remain in effect through at least December 29, 2018, and prior to such date, the Investment Adviser and Goldman Sachs (as applicable) may not terminate the arrangements without the approval of the Board of Trustees.

XML

Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Registrant Name

dei_EntityRegistrantName

Goldman Sachs Trust II

Prospectus Date

rr_ProspectusDate

May 21, 2018

Goldman Sachs Target Date 2025 Portfolio

Risk/Return:

rr_RiskReturnAbstract

Risk/Return [Heading]

rr_RiskReturnHeading

Goldman Sachs Target Date 2025 Portfolio—Summary

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Goldman Sachs Target Date 2025 Portfolio (the “Portfolio”) seeks to provide capital appreciation and current income consistent with its current asset allocation.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses of the Portfolio

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 Portfolio. You may qualify for sales charge discounts on purchases of Class A Shares if you invest at least $50,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 82 and in Appendix C—Additional Information About Sales Charge Variations, Waivers and Discounts on page 126 of the Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-133 of the Portfolio’s Statement of Additional Information (“SAI”).

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees
(fees paid directly from your investment)

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Portfolio Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

December 29, 2018

Portfolio Turnover [Heading]

rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block]

rr_PortfolioTurnoverTextBlock

The Portfolio may pay transaction costs when it buys and sells securities or instruments (i.e., “turns over” its portfolio). A high rate of portfolio turnover may result in increased transaction costs, including brokerage commissions, which must be borne by the Portfolio and its shareholders, and is also likely to result in higher short-term capital gains for taxable shareholders. These costs are not reflected in annual fund operating expenses or in the expense example above, but are reflected in the Portfolio’s performance. The Portfolio’s portfolio turnover rate for the fiscal period ended August 31, 2017 was 167% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

167.00%

Expense Breakpoint Discounts [Text]

rr_ExpenseBreakpointDiscounts

You may qualify for sales charge discounts on purchases of Class A Shares if you invest at least $50,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 82 and in Appendix C—Additional Information About Sales Charge Variations, Waivers and Discounts on page 126 of the Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-133 of the Portfolio’s Statement of Additional Information (“SAI”).

Expense Breakpoint, Minimum Investment Required [Amount]

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

$ 50,000

Expenses Restated to Reflect Current [Text]

rr_ExpensesRestatedToReflectCurrent

The Portfolio’s “Other Expenses” have been restated to reflect expenses expected to be incurred during the current fiscal year.

Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text]

rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees

The Total Annual Portfolio Operating Expenses do not correlate to the ratios of the net and total expenses to average net assets provided in the Financial Highlights, which reflect the operating expenses of the Portfolio and do not include Acquired (Underlying) Fund Fees and Expenses.

Expense Example [Heading]

rr_ExpenseExampleHeading

Expense Example

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This Example is intended to help you compare the cost of investing in the Portfolio with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in Class A, Institutional, Service, Investor, Class R and/or Class R6 Shares of the Portfolio for the time periods indicated and then redeem all of your Class A, Institutional, Service, Investor, Class R and/or Class R6 Shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Portfolio’s operating expenses remain the same (except that the Example incorporates the fee waiver and expense limitation arrangements for only the first year). Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Strategy [Heading]

rr_StrategyHeading

Principal Strategy

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

The Portfolio employs an asset allocation strategy designed for investors who plan to retire and to begin gradually withdrawing their investment from the Portfolio beginning in approximately 2025 (the “Target Date”). The Portfolio is managed for an investor planning to retire at the age of 65 on or around the Target Date.

The Portfolio generally seeks to achieve its investment objective by investing in shares of exchange-traded funds ("Underlying ETFs") and other registered investment companies (collectively, the "Underlying Funds"), according to an asset allocation strategy, developed by Madison Asset Management, LLC (the "Sub-Adviser") who is unaffiliated with the Investment Adviser, for investors planning to retire in or within a few years of 2025. Over time, the Portfolio's asset allocation will become more conservative until it reaches approximately 10-30% in equity funds and 70-90% in fixed income funds at the Target Date as illustrated in the graph below. After the Target Date, and as also illustrated in the graph below, the Portfolio's asset allocation targets are expected to remain within these approximate ranges. The graph below applies to each Goldman Sachs Target Date Portfolio identified in the Prospectus.



The asset allocation strategy is designed to reduce the volatility of investment returns in the later years while still providing the potential for higher total returns over the target period. Market conditions and the perceived value of securities will change as the investor moves across the glide path. Although the actual allocations may vary, the chart below illustrates the expected strategic asset allocation of the glide path and the tactical allocation ranges of the core asset classes and sub-asset classes.

YEARS TO TARGET DATE	10	5	0	–5	–10
Strategic Allocations
Equity	55%	38%	20%	20%	20%
US Equity	39%	26%	14%	14%	14%
Non-US Developed Equities	17%	11%	6%	6%	6%
Fixed Income	45%	63%	80%	80%	80%
Tactical Allocation Ranges
Equity	45-65%	28-48%	10-30%	10-30%	10-30%
US Equity	27-59%	17-43%	6-27%	6-27%	6-27%
Non-US Equities	5-26%	3-19%	1-12%	1-12%	1-12%
Fixed Income	35-55%	53-73%	70-90%	70-90%	70-90%
Sub-Asset Classes and Alternatives
Emerging Markets Equities	0-13%	0-10%	0-6%	0-6%	0-6%
Real Estate	0-10%	0-10%	0-10%	0-10%	0-10%
Commodities	0-10%	0-10%	0-10%	0-10%	0-10%
Other Alternative Strategies	0-10%	0-10%	0-10%	0-10%	0-10%

Note: Above allocations may not sum to total due to rounding.

On a periodic basis, the Sub-Adviser will evaluate and may revise the Portfolio's asset allocation, including revising the asset class weightings and adding and/or removing Underlying Funds. There will be times when the perceived value of equity and/or fixed income securities are stretched (or depressed) and the opportunity to proactively protect against (or take advantage of) these opportunities necessitates an ability to deviate from the glide path's strategic target. In order to attempt to capitalize on these periodic opportunities, the Sub-Adviser established a "tactical allocation range" that allows flexibility to increase or decrease exposure from the glide path's strategic allocations. As a result, the Portfolio's equity and fixed income asset allocation targets may range within the bounds of this tactical allocation range as illustrated in the chart above depending on the Sub-Adviser's views of the appropriate mix of the Portfolio's asset allocation based on then-current economic, market or other conditions, or factors unique to the Portfolio. Certain sub-asset classes, like real estate, commodities, and other alternative strategies, may be invested in using the tactical allocation range illustrated in the table above. The Sub-Adviser may also use the tactical allocation range to invest in certain other sub-asset classes within fixed income such as: domestic high yield non-investment grade securities (commonly referred to as "junk bonds"), inflation-linked securities, securities issued by foreign corporate and governmental issuers, sovereign and corporate debt securities of issuers in emerging market countries, convertible securities, and preferred stock. The Sub-Adviser will also monitor the Underlying Funds on an ongoing basis and may increase or decrease the Portfolio's investment in one or more Underlying Funds. The Underlying Fund selections are made based on several considerations, including the Portfolio's style or asset class exposures, portfolio characteristics, risk profile, and investment process. With regard to investments in Underlying Funds that invest in debt securities, the Sub-Adviser seeks to select portfolios of securities with long-, intermediate- and short-term maturities. Although the Portfolio does not intend to concentrate its investments in a particular industry, the Portfolio may indirectly concentrate in a particular industry or group of industries through its aggregate investment in one or more Underlying Funds. The particular Underlying Funds in which the Portfolio may invest and the Portfolio's targets and ranges will change from time to time without shareholder approval or notice.

The Sub-Adviser's strategy is intended to represent a conservative investment strategy. The Sub-Adviser's expectation is that the Portfolio may participate in market appreciation during bull markets and experience something less than full participation during bear markets compared with other funds holding more speculative and volatile securities. There is no assurance that the Sub-Adviser's expectations regarding this investment strategy will be realized.

Although the Portfolio expects to pursue its investment objective utilizing its principal investment strategies regardless of market conditions, the Portfolio may invest up to 100% in money market instruments. To the extent the Portfolio engages in this temporary defensive position, the Portfolio's ability to achieve its investment objective may be diminished.

Management Process

The Investment Adviser and the Portfolio have received an exemptive order from the Securities and Exchange Commission ("SEC"). Under the exemptive order, the Investment Adviser has the ultimate responsibility, subject to oversight by the Portfolio's Board of Trustees, to oversee the Sub-Adviser and recommend its hiring, termination and replacement. The initial shareholder of the Portfolio approved the Portfolio's operation in this manner and reliance by the Portfolio on this exemptive order.

Additional Information

The Portfolio's benchmark index is the S&P Target Date To 2025 Index (the "Index").

Risk [Heading]

rr_RiskHeading

Principal Risks of the Portfolio

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

Loss of money is a risk of investing in the Portfolio. An investment in the Portfolio is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any government agency. The Portfolio should not be relied upon as a complete investment program. Stated allocations may be subject to change. There can be no assurance that the Portfolio will achieve its investment objective. Investments in the Portfolio involve substantial risks which prospective investors should consider carefully before investing. Investors should also consider, in addition to his or her age or retirement date, other factors, including the investor’s risk tolerance, personal circumstances, and complete financial situation.

Asset Allocation Risk.  The Portfolio’s allocations to various asset classes and to the Underlying Funds may cause the Portfolio to underperform other funds with a similar investment objective.

Expenses.  By investing in the Underlying Funds indirectly through the Portfolio, the investor will incur not only a proportionate share of the expenses of the Underlying Funds held by the Portfolio (including operating costs and investment management fees), but also expenses of the Portfolio.

Inadequate Retirement Income.  An investment in the Portfolio is not guaranteed, and the Portfolio may experience losses, including losses near, at, or after the Target Date. There is no guarantee that the Portfolio will achieve sufficient capital appreciation to provide adequate income at and through retirement. Moreover, there is no guarantee that the Portfolio’s performance will keep pace with or exceed the rate of inflation, which may reduce the value of your investment over time.

Investing in the Underlying Funds.  The investments of the Portfolio may be concentrated in one or more Underlying Funds (including ETFs and other registered investment companies) subject to statutory limitations prescribed by the Investment Company Act of 1940, as amended (the "Investment Company Act"), or exemptive relief thereunder. The Portfolio's investment performance is directly related to the investment performance of the Underlying Funds it holds. The Portfolio is subject to the risk factors associated with the investments of the Underlying Funds in direct proportion to the amount of assets allocated to each. If the Portfolio has a relative concentration of its portfolio in a single Underlying Fund, it may be more susceptible to adverse developments affecting that Underlying Fund, and may be more susceptible to losses because of these developments.

Investments of the Underlying Funds.  Because the Portfolio invests in the Underlying Funds, the Portfolio’s shareholders will be affected by the investment policies and practices of the Underlying Funds in direct proportion to the amount of assets the Portfolio allocates to those Underlying Funds. A strategy used by the Underlying Funds may fail to produce the intended results.

Large Shareholder Transactions Risk.  The Portfolio may experience adverse effects when certain large shareholders purchase or redeem large amounts of shares of the Portfolio. Such large shareholder redemptions may cause the Portfolio to sell portfolio securities at times when it would not otherwise do so, which may negatively impact the Portfolio’s NAV and liquidity. Similarly, large Portfolio share purchases may adversely affect the Portfolio’s performance to the extent that the Portfolio is delayed in investing new cash and is required to maintain a larger cash position than it ordinarily would. These transactions may also accelerate the realization of taxable income to shareholders if such sales of investments resulted in gains, and may also increase transaction costs. In addition, a large redemption could result in the Portfolio’s current expenses being allocated over a smaller asset base, leading to an increase in the Portfolio’s expense ratio.

Management Risk.  A strategy used by the Sub-Adviser may fail to produce the intended results.

Portfolio Turnover Rate Risk.  A high rate of portfolio turnover (100% or more) involves correspondingly greater expenses which must be borne by the Portfolio and its shareholders, and is also likely to result in short-term capital gains taxable to shareholders.

Underlying ETF Risk.  The Portfolio may invest in Underlying ETFs subject to statutory limitations prescribed by the Investment Company Act, or exemptive relief thereunder. An investment in an Underlying ETF generally presents the same primary risks as an investment in a conventional fund (i.e., one that is not exchange-traded) that has the same investment objectives, strategies and policies. In addition, an ETF may fail to accurately track the market segment or index that underlies its investment objective; however, the market price of the Underlying ETF’s shares may trade at a premium or a discount to their net asset value. The price of an Underlying ETF can fluctuate, and the Portfolio could lose money investing in an Underlying ETF.

Principal Risks of the Underlying Funds

Credit/Default Risk.  An issuer or guarantor of fixed income securities held by an Underlying Fund (which may have low credit ratings) may default on its obligation to pay interest and repay principal or default on any other obligation. Additionally, the credit quality of securities may deteriorate rapidly, which may impair an Underlying Fund’s liquidity and cause significant deterioration in NAV. These risks are more pronounced in connection with an Underlying Fund’s investments in non-investment grade fixed income securities.

Derivatives Risk.  An Underlying Fund’s use of options, forwards, futures, swaps, structured securities and other derivative instruments may result in losses. These instruments, which may pose risks in addition to and greater than those associated with investing directly in securities, currencies or other instruments, may be illiquid or less liquid, volatile, difficult to price and leveraged so that small changes in the value of the underlying instruments may produce disproportionate losses to the Underlying Fund. Certain derivatives are also subject to counterparty risk, which is the risk that the other party in the transaction will not fulfill its contractual obligations. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with investments in more traditional securities and instruments.

Foreign and Emerging Countries Risk.  Foreign securities may be subject to risk of loss because of more or less foreign government regulation, less public information and less economic, political and social stability in the countries in which the Portfolio invests. The imposition of exchange controls, sanctions, confiscations, trade restrictions (including tariffs) and other government restrictions by the United States and other governments, or from problems in share registration, settlement or custody, may also result in losses. Foreign risk also involves the risk of negative foreign currency rate fluctuations, which may cause the value of securities denominated in such foreign currency (or other instruments through which an Underlying Fund has exposure to foreign currencies) to decline in value. Currency exchange rates may fluctuate significantly over short periods of time. These risks may be more pronounced in connection with the Underlying Fund’s investments in securities of issuers located in emerging countries.

Geographic Risk.  If an Underlying Fund focuses its investments in issuers located in a particular country or region, the Underlying Fund may be subjected, to a greater extent than if investments were less focused, to the risks of volatile economic cycles and/or conditions and developments that may be particular to that country or region, such as: adverse securities markets; adverse exchange rates; adverse social, political, regulatory, economic, business, environmental or other developments; or natural disasters.

Interest Rate Risk.  When interest rates increase, fixed income securities or instruments held by an Underlying Fund will generally decline in value. Long-term fixed income securities or instruments will normally have more price volatility because of this risk than short-term fixed income securities or instruments. The risks associated with increasing rates are heightened given that interest rates are near historic lows, but may be expected to increase in the future with unpredictable effects on the markets and an Underlying Fund’s investments. Fluctuations in interest rates may also affect the liquidity of fixed income securities and instruments held by an Underlying Fund.

Leverage Risk.  Borrowing and the use of derivatives may result in leverage and may make an Underlying Fund more volatile. The use of leverage may cause an Underlying Fund to liquidate portfolio positions to satisfy its obligations or to meet asset segregation requirements when it may not be advantageous to do so. The use of leverage by an Underlying Fund can substantially increase the adverse impact to which its investment portfolio may be subject.

Liquidity Risk.  An Underlying Fund may make investments that are illiquid or that may become less liquid in response to market developments or adverse investor perceptions. Illiquid investments may be more difficult to value. Liquidity risk may also refer to the risk that an Underlying Fund will not be able to pay redemption proceeds within the allowable time period because of unusual market conditions, an unusually high volume of redemption requests or other reasons. To meet redemption requests, an Underlying Fund may be forced to sell securities, at an unfavorable time and/or under unfavorable conditions. Liquidity risk may be the result of, among other things, the reduced number and capacity of traditional market participants to make a market in fixed income securities or the lack of an active market. The potential for liquidity risk may be magnified by a rising interest rate environment or other circumstances where investor redemptions from fixed income mutual funds may be higher than normal, potentially causing increased supply in the market due to selling activity.

Market Risk.  The value of the securities in which an Underlying Fund invests may go up or down in response to the prospects of individual companies, particular sectors or governments and/or general economic conditions throughout the world due to increasingly interconnected global economies and financial markets.

Mid-Cap and Small-Cap Risk.  Certain of the Underlying Funds may make investments mid-capitalization and small-capitalization companies involve greater risks than those associated with larger, more established companies. These securities may be subject to more abrupt or erratic price movements and may lack sufficient market liquidity, and these issuers often face greater business risks.

Mortgage-Backed and Other Asset-Backed Securities Risk.  Mortgage-related and other asset-backed securities are subject to certain additional risks, including “extension risk” (i.e., in periods of rising interest rates, issuers may pay principal later than expected) and “prepayment risk” (i.e., in periods of declining interest rates, issuers may pay principal more quickly than expected, causing an Underlying Fund to reinvest proceeds at lower prevailing interest rates). Mortgage-backed securities offered by non-governmental issuers are subject to other risks as well, including failures of private insurers to meet their obligations and unexpectedly high rates of default on the mortgages backing the securities. Other asset-backed securities are subject to risks similar to those associated with mortgage-backed securities, as well as risks associated with the nature and servicing of the assets backing the securities. Asset-backed securities may not have the benefit of a security interest in collateral comparable to that of mortgage assets, resulting in additional credit risk.

Non-Investment Grade Investments Risk.  Non-investment grade fixed income securities and unrated securities of comparable credit quality (commonly known as “junk bonds”) are considered speculative and are subject to the increased risk of an issuer’s inability to meet principal and interest payment obligations. These securities may be subject to greater price volatility due to such factors as specific issuer developments, interest rate sensitivity, negative perceptions of the junk bond markets generally and less liquidity.

Stock Risk.  Stock prices have historically risen and fallen in periodic cycles. U.S. and foreign stock markets have experienced periods of substantial price volatility in the past and may do so again in the future.

U.S. Government Securities Risk.  The U.S. government may not provide financial support to U.S. government agencies, instrumentalities or sponsored enterprises if it is not obligated to do so by law. U.S. Government Securities issued by those agencies, instrumentalities and sponsored enterprises, including those issued by the Federal National Mortgage Association (“Fannie Mae”), Federal Home Loan Mortgage Corporation (“Freddie Mac”) and the Federal Home Loan Banks, are neither issued nor guaranteed by the U.S. Treasury and, therefore, are not backed by the full faith and credit of the United States. The maximum potential liability of the issuers of some U.S. Government Securities held by an Underlying Fund may greatly exceed their current resources, including any legal right to support from the U.S. Treasury. It is possible that issuers of U.S. Government Securities will not have the funds to meet their payment obligations in the future.

Risk Lose Money [Text]

rr_RiskLoseMoney

Loss of money is a risk of investing in the Portfolio.

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Portfolio is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any government agency.

Bar Chart and Performance Table [Heading]

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Performance

Performance Narrative [Text Block]

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As the Portfolio has not operated for a full calendar year as of the date of the Prospectus, there is no performance information quoted for the Portfolio. Updated performance information is available at no cost at www.gsamfunds.com/performance or by calling the phone number on the back of the Prospectus.

Performance One Year or Less [Text]

rr_PerformanceOneYearOrLess

As the Portfolio has not operated for a full calendar year as of the date of the Prospectus, there is no performance information quoted for the Portfolio.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

www.gsamfunds.com/performance

Goldman Sachs Target Date 2025 Portfolio | Class A

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

5.50%

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

2.62%

Other Expenses

rr_OtherExpensesOverAssets

2.62%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

3.29%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(2.42%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.87%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 634

3 Years

rr_ExpenseExampleYear03

1,293

5 Years

rr_ExpenseExampleYear05

1,974

10 Years

rr_ExpenseExampleYear10

$ 3,782

Goldman Sachs Target Date 2025 Portfolio | Institutional

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

2.48%

Other Expenses

rr_OtherExpensesOverAssets

2.48%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

2.90%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(2.42%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.48%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 49

3 Years

rr_ExpenseExampleYear03

668

5 Years

rr_ExpenseExampleYear05

1,313

10 Years

rr_ExpenseExampleYear10

$ 3,049

Goldman Sachs Target Date 2025 Portfolio | Service

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

0.25%

All Other Expenses

rr_Component2OtherExpensesOverAssets

2.48%

Other Expenses

rr_OtherExpensesOverAssets

2.73%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

3.40%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(2.42%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.98%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 100

3 Years

rr_ExpenseExampleYear03

819

5 Years

rr_ExpenseExampleYear05

1,561

10 Years

rr_ExpenseExampleYear10

$ 3,522

Goldman Sachs Target Date 2025 Portfolio | Investor

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

2.62%

Other Expenses

rr_OtherExpensesOverAssets

2.62%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

3.04%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(2.42%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.62%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 63

3 Years

rr_ExpenseExampleYear03

710

5 Years

rr_ExpenseExampleYear05

1,383

10 Years

rr_ExpenseExampleYear10

$ 3,184

Goldman Sachs Target Date 2025 Portfolio | Class R

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.50%

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

2.62%

Other Expenses

rr_OtherExpensesOverAssets

2.62%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

3.54%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(2.42%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

1.12%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 114

3 Years

rr_ExpenseExampleYear03

860

5 Years

rr_ExpenseExampleYear05

1,629

10 Years

rr_ExpenseExampleYear10

$ 3,649

Goldman Sachs Target Date 2025 Portfolio | Class R6

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

2.47%

Other Expenses

rr_OtherExpensesOverAssets

2.47%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

2.89%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(2.42%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.47%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 48

3 Years

rr_ExpenseExampleYear03

665

5 Years

rr_ExpenseExampleYear05

1,308

10 Years

rr_ExpenseExampleYear10

$ 3,039

[1] The Portfolio’s “Other Expenses” have been restated to reflect expenses expected to be incurred during the current fiscal year.

[2] The Total Annual Portfolio Operating Expenses do not correlate to the ratios of the net and total expenses to average net assets provided in the Financial Highlights, which reflect the operating expenses of the Portfolio and do not include Acquired (Underlying) Fund Fees and Expenses.

[3] The Investment Adviser has agreed to reduce or limit “Other Expenses” (excluding acquired (underlying) fund fees and expenses, transfer agency fees and expenses, service fees, shareholder administration fees, taxes, interest, brokerage fees, expenses of shareholder meetings, litigation and indemnification, and extraordinary expenses) to 0.014% of the Portfolio’s average daily net assets. Additionally, Goldman Sachs & Co. LLC (“Goldman Sachs”), the Portfolio’s transfer agent, has agreed to waive a portion of its transfer agency fee (a component of “Other Expenses”) equal to 0.01% as an annual percentage rate of the average daily net assets attributable to Class R6 Shares of the Portfolio. These arrangements will remain in effect through at least December 29, 2018, and prior to such date, the Investment Adviser and Goldman Sachs (as applicable) may not terminate the arrangements without the approval of the Board of Trustees.

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Goldman Sachs Target Date 2030 Portfolio

Goldman Sachs Target Date 2030 Portfolio—Summary

Investment Objective

The Goldman Sachs Target Date 2030 Portfolio (the “Portfolio”) seeks to provide capital appreciation and current income consistent with its current asset allocation.

Fees and Expenses of the Portfolio

This table describes the fees and expenses that you may pay if you buy and hold shares of the Portfolio. You may qualify for sales charge discounts on purchases of Class A Shares if you invest at least $50,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 82 and in Appendix C—Additional Information About Sales Charge Variations, Waivers and Discounts on page 126 of the Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-133 of the Portfolio’s Statement of Additional Information (“SAI”).

Shareholder Fees
(fees paid directly from your investment)

Shareholder Fees - Goldman Sachs Target Date 2030 Portfolio	Class A	Institutional	Service	Investor	Class R	Class R6
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.50%	none	none	none	none	none

Annual Portfolio Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Annual Portfolio Operating Expenses - Goldman Sachs Target Date 2030 Portfolio		Class A	Institutional	Service	Investor	Class R	Class R6
Management Fees		0.25%	0.25%	0.25%	0.25%	0.25%	0.25%
Distribution and/or Service (12b-1) Fees		0.25%	none	0.25%	none	0.50%	none
Other Expenses	[1]	0.67%	0.53%	0.78%	0.67%	0.67%	0.52%
Shareholder Administration Fees		none	none	0.25%	none	none	none
All Other Expenses		0.67%	0.53%	0.53%	0.67%	0.67%	0.52%
Acquired (Underlying) Fund Fees and Expenses		0.17%	0.17%	0.17%	0.17%	0.17%	0.17%
Total Annual Portfolio Operating Expenses	[2]	1.34%	0.95%	1.45%	1.09%	1.59%	0.94%
Fee Waiver and Expense Limitation	[3]	(0.47%)	(0.47%)	(0.47%)	(0.47%)	(0.47%)	(0.47%)
Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation	[2]	0.87%	0.48%	0.98%	0.62%	1.12%	0.47%

Expense Example

This Example is intended to help you compare the cost of investing in the Portfolio with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in Class A, Institutional, Service, Investor, Class R and/or Class R6 Shares of the Portfolio for the time periods indicated and then redeem all of your Class A, Institutional, Service, Investor, Class R and/or Class R6 Shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Portfolio’s operating expenses remain the same (except that the Example incorporates the fee waiver and expense limitation arrangements for only the first year). Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example - Goldman Sachs Target Date 2030 Portfolio - USD ($)	1 Year	3 Years	5 Years	10 Years
Class A Shares	634	907	1,201	2,035
Institutional Shares	49	256	480	1,123
Service Shares	100	412	747	1,695
Investor Shares	63	300	555	1,286
Class R Shares	114	456	821	1,850
Class R6 Shares	48	253	474	1,112

Portfolio Turnover

The Portfolio may pay transaction costs when it buys and sells securities or instruments (i.e., “turns over” its portfolio). A high rate of portfolio turnover may result in increased transaction costs, including brokerage commissions, which must be borne by the Portfolio and its shareholders, and is also likely to result in higher short-term capital gains for taxable shareholders. These costs are not reflected in annual fund operating expenses or in the expense example above, but are reflected in the Portfolio’s performance. The Portfolio’s portfolio turnover rate for the fiscal period ended August 31, 2017 was 143% of the average value of its portfolio.

Principal Strategy

The Portfolio employs an asset allocation strategy designed for investors who plan to retire and to begin gradually withdrawing their investment from the Portfolio beginning in approximately 2030 (the “Target Date”). The Portfolio is managed for an investor planning to retire at the age of 65 on or around the Target Date.

The Portfolio generally seeks to achieve its investment objective by investing in shares of exchange-traded funds (“Underlying ETFs”) and other registered investment companies (collectively, the “Underlying Funds”), according to an asset allocation strategy, developed by Madison Asset Management, LLC (the “Sub-Adviser”) who is unaffiliated with the Investment Adviser, for investors planning to retire in or within a few years of 2030. Over time, the Portfolio’s asset allocation will become more conservative until it reaches approximately 10-30% in equity funds and 70-90% in fixed income funds at the Target Date as illustrated in the graph below. After the Target Date, and as also illustrated in the graph below, the Portfolio’s asset allocation targets are expected to remain within these approximate ranges. The graph below applies to each Goldman Sachs Target Date Portfolio identified in the Prospectus.



The asset allocation strategy is designed to reduce the volatility of investment returns in the later years while still providing the potential for higher total returns over the target period. Market conditions and the perceived value of securities will change as the investor moves across the glide path. Although the actual allocations may vary, the chart below illustrates the expected strategic asset allocation of the glide path and the tactical allocation ranges of the core asset classes and sub-asset classes.

YEARS TO TARGET DATE	15	10	5	0	–5	–10
Strategic Allocations
Equity	60%	55%	38%	20%	20%	20%
US Equity	42%	39%	26%	14%	14%	14%
Non-US Developed Equities	18%	17%	11%	6%	6%	6%
Fixed Income	40%	45%	63%	80%	80%	80%
Tactical Allocation Ranges
Equity	50-70%	45-65%	28-48%	10-30%	10-30%	10-30%
US Equity	30-63%	27-59%	17-43%	6-27%	6-27%	6-27%
Non-US Equities	5-28%	5-26%	3-19%	1-12%	1-12%	1-12%
Fixed Income	30-50%	35-55%	53-73%	70-90%	70-90%	70-90%
Sub-Asset Classes and Alternatives
Emerging Markets Equities	0-14%	0-13%	0-10%	0-6%	0-6%	0-6%
Real Estate	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%
Commodities	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%
Other Alternative Strategies	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%

Note: Above allocations may not sum to total due to rounding.

On a periodic basis, the Sub-Adviser will evaluate and may revise the Portfolio’s asset allocation, including revising the asset class weightings and adding and/or removing Underlying Funds. There will be times when the perceived value of equity and/or fixed income securities are stretched (or depressed) and the opportunity to proactively protect against (or take advantage of) these opportunities necessitates an ability to deviate from the glide path’s strategic target. In order to attempt to capitalize on these periodic opportunities, the Sub-Adviser established a “tactical allocation range” that allows flexibility to increase or decrease exposure from the glide path’s strategic allocations. As a result, the Portfolio’s equity and fixed income asset allocation targets may range within the bounds of this tactical allocation range as illustrated in the chart above depending on the Sub-Adviser’s views of the appropriate mix of the Portfolio’s asset allocation based on then-current economic, market or other conditions, or factors unique to the Portfolio. Certain sub-asset classes, like real estate, commodities, and other alternative strategies, may be invested in using the tactical allocation range illustrated in the table above. The Sub-Adviser may also use the tactical allocation range to invest in certain other sub-asset classes within fixed income such as: domestic high yield non-investment grade securities (commonly referred to as “junk bonds”), inflation-linked securities, securities issued by foreign corporate and governmental issuers, sovereign and corporate debt securities of issuers in emerging market countries, convertible securities, and preferred stock. The Sub-Adviser will also monitor the Underlying Funds on an ongoing basis and may increase or decrease the Portfolio’s investment in one or more Underlying Funds. The Underlying Fund selections are made based on several considerations, including the Portfolio’s style or asset class exposures, portfolio characteristics, risk profile, and investment process. With regard to investments in Underlying Funds that invest in debt securities, the Sub-Adviser seeks to select portfolios of securities with long-, intermediate- and short-term maturities. Although the Portfolio does not intend to concentrate its investments in a particular industry, the Portfolio may indirectly concentrate in a particular industry or group of industries through its aggregate investment in one or more Underlying Funds. The particular Underlying Funds in which the Portfolio may invest and the Portfolio's targets and ranges will change from time to time without shareholder approval or notice.

The Sub-Adviser’s strategy is intended to represent a conservative investment strategy. The Sub-Adviser’s expectation is that the Portfolio may participate in market appreciation during bull markets and experience something less than full participation during bear markets compared with other funds holding more speculative and volatile securities. There is no assurance that the Sub-Adviser’s expectations regarding this investment strategy will be realized.

Although the Portfolio expects to pursue its investment objective utilizing its principal investment strategies regardless of market conditions, the Portfolio may invest up to 100% in money market instruments. To the extent the Portfolio engages in this temporary defensive position, the Portfolio’s ability to achieve its investment objective may be diminished.

Management Process

The Investment Adviser and the Portfolio have received an exemptive order from the Securities and Exchange Commission (“SEC”). Under the exemptive order, the Investment Adviser has the ultimate responsibility, subject to oversight by the Portfolio’s Board of Trustees, to oversee the Sub-Adviser and recommend its hiring, termination and replacement. The initial shareholder of the Portfolio approved the Portfolio’s operation in this manner and reliance by the Portfolio on this exemptive order.

Additional Information

The Portfolio’s benchmark index is the S&P Target Date To 2030 Index (the “Index”).

Principal Risks of the Portfolio

Loss of money is a risk of investing in the Portfolio. An investment in the Portfolio is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any government agency. The Portfolio should not be relied upon as a complete investment program. Stated allocations may be subject to change. There can be no assurance that the Portfolio will achieve its investment objective. Investments in the Portfolio involve substantial risks which prospective investors should consider carefully before investing. Investors should also consider, in addition to his or her age or retirement date, other factors, including the investor’s risk tolerance, personal circumstances, and complete financial situation.

Asset Allocation Risk.  The Portfolio’s allocations to various asset classes and to the Underlying Funds may cause the Portfolio to underperform other funds with a similar investment objective.

Expenses.  By investing in the Underlying Funds indirectly through the Portfolio, the investor will incur not only a proportionate share of the expenses of the Underlying Funds held by the Portfolio (including operating costs and investment management fees), but also expenses of the Portfolio.

Inadequate Retirement Income.  An investment in the Portfolio is not guaranteed, and the Portfolio may experience losses, including losses near, at, or after the Target Date. There is no guarantee that the Portfolio will achieve sufficient capital appreciation to provide adequate income at and through retirement. Moreover, there is no guarantee that the Portfolio’s performance will keep pace with or exceed the rate of inflation, which may reduce the value of your investment over time.

Investing in the Underlying Funds.  The investments of the Portfolio may be concentrated in one or more Underlying Funds (including ETFs and other registered investment companies) subject to statutory limitations prescribed by the Investment Company Act of 1940, as amended (the “Investment Company Act”), or exemptive relief thereunder. The Portfolio’s investment performance is directly related to the investment performance of the Underlying Funds it holds. The Portfolio is subject to the risk factors associated with the investments of the Underlying Funds in direct proportion to the amount of assets allocated to each. If the Portfolio has a relative concentration of its portfolio in a single Underlying Fund, it may be more susceptible to adverse developments affecting that Underlying Fund, and may be more susceptible to losses because of these developments.

Investments of the Underlying Funds.  Because the Portfolio invests in the Underlying Funds, the Portfolio’s shareholders will be affected by the investment policies and practices of the Underlying Funds in direct proportion to the amount of assets the Portfolio allocates to those Underlying Funds. A strategy used by the Underlying Funds may fail to produce the intended results.

Large Shareholder Transactions Risk.  The Portfolio may experience adverse effects when certain large shareholders purchase or redeem large amounts of shares of the Portfolio. Such large shareholder redemptions may cause the Portfolio to sell portfolio securities at times when it would not otherwise do so, which may negatively impact the Portfolio’s NAV and liquidity. Similarly, large Portfolio share purchases may adversely affect the Portfolio’s performance to the extent that the Portfolio is delayed in investing new cash and is required to maintain a larger cash position than it ordinarily would. These transactions may also accelerate the realization of taxable income to shareholders if such sales of investments resulted in gains, and may also increase transaction costs. In addition, a large redemption could result in the Portfolio’s current expenses being allocated over a smaller asset base, leading to an increase in the Portfolio’s expense ratio.

Management Risk.  A strategy used by the Sub-Adviser may fail to produce the intended results.

Portfolio Turnover Rate Risk.  A high rate of portfolio turnover (100% or more) involves correspondingly greater expenses which must be borne by the Portfolio and its shareholders, and is also likely to result in short-term capital gains taxable to shareholders.

Underlying ETF Risk.  The Portfolio may invest in Underlying ETFs subject to statutory limitations prescribed by the Investment Company Act, or exemptive relief thereunder. An investment in an Underlying ETF generally presents the same primary risks as an investment in a conventional fund (i.e., one that is not exchange-traded) that has the same investment objectives, strategies and policies. In addition, an ETF may fail to accurately track the market segment or index that underlies its investment objective; however, the market price of the Underlying ETF’s shares may trade at a premium or a discount to their net asset value. The price of an Underlying ETF can fluctuate, and the Portfolio could lose money investing in an Underlying ETF.

Principal Risks of the Underlying Funds

Credit/Default Risk.  An issuer or guarantor of fixed income securities held by an Underlying Fund (which may have low credit ratings) may default on its obligation to pay interest and repay principal or default on any other obligation. Additionally, the credit quality of securities may deteriorate rapidly, which may impair an Underlying Fund’s liquidity and cause significant deterioration in NAV. These risks are more pronounced in connection with an Underlying Fund’s investments in non-investment grade fixed income securities.

Derivatives Risk.  An Underlying Fund’s use of options, forwards, futures, swaps, structured securities and other derivative instruments may result in losses. These instruments, which may pose risks in addition to and greater than those associated with investing directly in securities, currencies or other instruments, may be illiquid or less liquid, volatile, difficult to price and leveraged so that small changes in the value of the underlying instruments may produce disproportionate losses to the Underlying Fund. Certain derivatives are also subject to counterparty risk, which is the risk that the other party in the transaction will not fulfill its contractual obligations. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with investments in more traditional securities and instruments.

Foreign and Emerging Countries Risk.  Foreign securities may be subject to risk of loss because of more or less foreign government regulation, less public information and less economic, political and social stability in the countries in which the Portfolio invests. The imposition of exchange controls, sanctions, confiscations, trade restrictions (including tariffs) and other government restrictions by the United States and other governments, or from problems in share registration, settlement or custody, may also result in losses. Foreign risk also involves the risk of negative foreign currency rate fluctuations, which may cause the value of securities denominated in such foreign currency (or other instruments through which an Underlying Fund has exposure to foreign currencies) to decline in value. Currency exchange rates may fluctuate significantly over short periods of time. These risks may be more pronounced in connection with the Underlying Fund’s investments in securities of issuers located in emerging countries.

Geographic Risk.  If an Underlying Fund focuses its investments in issuers located in a particular country or region, the Underlying Fund may be subjected, to a greater extent than if investments were less focused, to the risks of volatile economic cycles and/or conditions and developments that may be particular to that country or region, such as: adverse securities markets; adverse exchange rates; adverse social, political, regulatory, economic, business, environmental or other developments; or natural disasters.

Interest Rate Risk.  When interest rates increase, fixed income securities or instruments held by an Underlying Fund will generally decline in value. Long-term fixed income securities or instruments will normally have more price volatility because of this risk than short-term fixed income securities or instruments. The risks associated with increasing rates are heightened given that interest rates are near historic lows, but may be expected to increase in the future with unpredictable effects on the markets and an Underlying Fund’s investments. Fluctuations in interest rates may also affect the liquidity of fixed income securities and instruments held by an Underlying Fund.

Leverage Risk.  Borrowing and the use of derivatives may result in leverage and may make an Underlying Fund more volatile. The use of leverage may cause an Underlying Fund to liquidate portfolio positions to satisfy its obligations or to meet asset segregation requirements when it may not be advantageous to do so. The use of leverage by an Underlying Fund can substantially increase the adverse impact to which its investment portfolio may be subject.

Liquidity Risk.  An Underlying Fund may make investments that are illiquid or that may become less liquid in response to market developments or adverse investor perceptions. Illiquid investments may be more difficult to value. Liquidity risk may also refer to the risk that an Underlying Fund will not be able to pay redemption proceeds within the allowable time period because of unusual market conditions, an unusually high volume of redemption requests or other reasons. To meet redemption requests, an Underlying Fund may be forced to sell securities, at an unfavorable time and/or under unfavorable conditions. Liquidity risk may be the result of, among other things, the reduced number and capacity of traditional market participants to make a market in fixed income securities or the lack of an active market. The potential for liquidity risk may be magnified by a rising interest rate environment or other circumstances where investor redemptions from fixed income mutual funds may be higher than normal, potentially causing increased supply in the market due to selling activity.

Market Risk.  The value of the securities in which an Underlying Fund invests may go up or down in response to the prospects of individual companies, particular sectors or governments and/or general economic conditions throughout the world due to increasingly interconnected global economies and financial markets.

Mid-Cap and Small-Cap Risk.  Certain of the Underlying Funds may make investments mid-capitalization and small-capitalization companies involve greater risks than those associated with larger, more established companies. These securities may be subject to more abrupt or erratic price movements and may lack sufficient market liquidity, and these issuers often face greater business risks.

Mortgage-Backed and Other Asset-Backed Securities Risk.  Mortgage-related and other asset-backed securities are subject to certain additional risks, including “extension risk” (i.e., in periods of rising interest rates, issuers may pay principal later than expected) and “prepayment risk” (i.e., in periods of declining interest rates, issuers may pay principal more quickly than expected, causing an Underlying Fund to reinvest proceeds at lower prevailing interest rates). Mortgage-backed securities offered by non-governmental issuers are subject to other risks as well, including failures of private insurers to meet their obligations and unexpectedly high rates of default on the mortgages backing the securities. Other asset-backed securities are subject to risks similar to those associated with mortgage-backed securities, as well as risks associated with the nature and servicing of the assets backing the securities. Asset-backed securities may not have the benefit of a security interest in collateral comparable to that of mortgage assets, resulting in additional credit risk.

Non-Investment Grade Investments Risk.  Non-investment grade fixed income securities and unrated securities of comparable credit quality (commonly known as “junk bonds”) are considered speculative and are subject to the increased risk of an issuer’s inability to meet principal and interest payment obligations. These securities may be subject to greater price volatility due to such factors as specific issuer developments, interest rate sensitivity, negative perceptions of the junk bond markets generally and less liquidity.

Stock Risk.  Stock prices have historically risen and fallen in periodic cycles. U.S. and foreign stock markets have experienced periods of substantial price volatility in the past and may do so again in the future.

U.S. Government Securities Risk.  The U.S. government may not provide financial support to U.S. government agencies, instrumentalities or sponsored enterprises if it is not obligated to do so by law. U.S. Government Securities issued by those agencies, instrumentalities and sponsored enterprises, including those issued by the Federal National Mortgage Association (“Fannie Mae”), Federal Home Loan Mortgage Corporation (“Freddie Mac”) and the Federal Home Loan Banks, are neither issued nor guaranteed by the U.S. Treasury and, therefore, are not backed by the full faith and credit of the United States. The maximum potential liability of the issuers of some U.S. Government Securities held by an Underlying Fund may greatly exceed their current resources, including any legal right to support from the U.S. Treasury. It is possible that issuers of U.S. Government Securities will not have the funds to meet their payment obligations in the future.

Performance

Effective August 22, 2016, the Madison Target Retirement 2030 Fund, a series of Madison Funds (the “Predecessor Fund”), was reorganized into the Portfolio. As accounting successor to the Predecessor Fund, the Portfolio has assumed the Predecessor Fund’s historical performance. Therefore, the performance information shown below for periods prior to August 22, 2016 is that of the Predecessor Fund. The returns presented for the Portfolio for periods prior to August 29, 2014 reflect the performance of the Madison Target Retirement 2030 Fund’s Class I Shares, a series of Ultra Series Fund (the “Ultra Predecessor Fund”). As of August 29, 2014, the inception date of the Predecessor Fund, the Ultra Predecessor Fund exchanged in kind substantially all of its portfolio holdings for Class R6 shares of the Predecessor Fund. As a result, the Predecessor Fund assumed the performance of the Ultra Predecessor Fund.

The bar chart and table below provide an indication of the risks of investing in the Portfolio by showing: (a) changes in the performance of the Portfolio’s Class R6 Shares from year to year; and (b) how the average annual total returns of the Portfolio’s Class R6 Shares compare to those of a broad-based securities market index. The Portfolio has different fees and expenses from those of the Predecessor Fund and would, therefore, have had different performance results. Past performance of the Portfolio, before and after taxes, is not necessarily an indication of how the Portfolio will perform in the future. Performance information for the Portfolio is available at no cost at www.gsamfunds.com/performance or by calling the appropriate phone number on the back cover of the Prospectus.

Because the Predecessor Fund did not offer Class A, Institutional, Service, Investor and Class R Shares, and the Class A, Institutional, Service, Investor and Class R Shares of the Portfolio have not operated for a full calendar year as of the date of the Prospectus, no performance information is shown for those share classes.

Performance reflects applicable fee waivers and/or expense limitations in effect during the periods shown.

TOTAL RETURN CALENDAR YEAR (CLASS R6)

The total return for Class R6 Shares for the 9-month period ended September 30, 2017 was 9.63%.

Best Quarter
Q2 ‘09          +16.77%

Worst Quarter
Q4 ‘08          –21.65%

AVERAGE ANNUAL TOTAL RETURNS

For the period ended December 31, 2016

Average Annual Total Returns - Goldman Sachs Target Date 2030 Portfolio	1 Year	5 Years	Since Inception	Inception Date
Class R6	7.51%	8.30%	2.87%	Oct. 01, 2007
Class R6 | Returns After Taxes on Distributions	5.89%	7.97%	2.70%	Oct. 01, 2007
Class R6 | Returns After Taxes on Distributions and Sale of Portfolio Shares	5.03%	6.49%	2.21%	Oct. 01, 2007
S&P Target Date To 2030 Index (reflects no deduction for sales charges, account fees, expenses or taxes)	7.73%	7.95%	3.62%

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. In addition, the after-tax returns shown are not relevant to investors who hold Portfolio shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts.

[1] The Portfolio’s “Other Expenses” have been restated to reflect expenses expected to be incurred during the current fiscal year.

[2] The Total Annual Portfolio Operating Expenses do not correlate to the ratios of the net and total expenses to average net assets provided in the Financial Highlights, which reflect the operating expenses of the Portfolio and do not include Acquired (Underlying) Fund Fees and Expenses.

[3] The Investment Adviser has agreed to reduce or limit “Other Expenses” (excluding acquired (underlying) fund fees and expenses, transfer agency fees and expenses, service fees, shareholder administration fees, taxes, interest, brokerage fees, expenses of shareholder meetings, litigation and indemnification, and extraordinary expenses) to 0.024% of the Portfolio’s average daily net assets. Additionally, Goldman Sachs & Co. LLC (“Goldman Sachs”), the Portfolio’s transfer agent, has agreed to waive a portion of its transfer agency fee (a component of “Other Expenses”) equal to 0.01% as an annual percentage rate of the average daily net assets attributable to Class R6 Shares of the Portfolio. These arrangements will remain in effect through at least December 29, 2018, and prior to such date, the Investment Adviser and Goldman Sachs (as applicable) may not terminate the arrangements without the approval of the Board of Trustees.

XML

Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Registrant Name

dei_EntityRegistrantName

Goldman Sachs Trust II

Prospectus Date

rr_ProspectusDate

May 21, 2018

Goldman Sachs Target Date 2030 Portfolio

Risk/Return:

rr_RiskReturnAbstract

Risk/Return [Heading]

rr_RiskReturnHeading

Goldman Sachs Target Date 2030 Portfolio—Summary

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Goldman Sachs Target Date 2030 Portfolio (the “Portfolio”) seeks to provide capital appreciation and current income consistent with its current asset allocation.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses of the Portfolio

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 Portfolio. You may qualify for sales charge discounts on purchases of Class A Shares if you invest at least $50,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 82 and in Appendix C—Additional Information About Sales Charge Variations, Waivers and Discounts on page 126 of the Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-133 of the Portfolio’s Statement of Additional Information (“SAI”).

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees
(fees paid directly from your investment)

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Portfolio Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

December 29, 2018

Portfolio Turnover [Heading]

rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block]

rr_PortfolioTurnoverTextBlock

The Portfolio may pay transaction costs when it buys and sells securities or instruments (i.e., “turns over” its portfolio). A high rate of portfolio turnover may result in increased transaction costs, including brokerage commissions, which must be borne by the Portfolio and its shareholders, and is also likely to result in higher short-term capital gains for taxable shareholders. These costs are not reflected in annual fund operating expenses or in the expense example above, but are reflected in the Portfolio’s performance. The Portfolio’s portfolio turnover rate for the fiscal period ended August 31, 2017 was 143% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

143.00%

Expense Breakpoint Discounts [Text]

rr_ExpenseBreakpointDiscounts

You may qualify for sales charge discounts on purchases of Class A Shares if you invest at least $50,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 82 and in Appendix C—Additional Information About Sales Charge Variations, Waivers and Discounts on page 126 of the Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-133 of the Portfolio’s Statement of Additional Information (“SAI”).

Expense Breakpoint, Minimum Investment Required [Amount]

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

$ 50,000

Expenses Restated to Reflect Current [Text]

rr_ExpensesRestatedToReflectCurrent

The Portfolio’s “Other Expenses” have been restated to reflect expenses expected to be incurred during the current fiscal year.

Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text]

rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees

The Total Annual Portfolio Operating Expenses do not correlate to the ratios of the net and total expenses to average net assets provided in the Financial Highlights, which reflect the operating expenses of the Portfolio and do not include Acquired (Underlying) Fund Fees and Expenses.

Expense Example [Heading]

rr_ExpenseExampleHeading

Expense Example

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This Example is intended to help you compare the cost of investing in the Portfolio with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in Class A, Institutional, Service, Investor, Class R and/or Class R6 Shares of the Portfolio for the time periods indicated and then redeem all of your Class A, Institutional, Service, Investor, Class R and/or Class R6 Shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Portfolio’s operating expenses remain the same (except that the Example incorporates the fee waiver and expense limitation arrangements for only the first year). Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Strategy [Heading]

rr_StrategyHeading

Principal Strategy

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

The Portfolio employs an asset allocation strategy designed for investors who plan to retire and to begin gradually withdrawing their investment from the Portfolio beginning in approximately 2030 (the “Target Date”). The Portfolio is managed for an investor planning to retire at the age of 65 on or around the Target Date.

The Portfolio generally seeks to achieve its investment objective by investing in shares of exchange-traded funds (“Underlying ETFs”) and other registered investment companies (collectively, the “Underlying Funds”), according to an asset allocation strategy, developed by Madison Asset Management, LLC (the “Sub-Adviser”) who is unaffiliated with the Investment Adviser, for investors planning to retire in or within a few years of 2030. Over time, the Portfolio’s asset allocation will become more conservative until it reaches approximately 10-30% in equity funds and 70-90% in fixed income funds at the Target Date as illustrated in the graph below. After the Target Date, and as also illustrated in the graph below, the Portfolio’s asset allocation targets are expected to remain within these approximate ranges. The graph below applies to each Goldman Sachs Target Date Portfolio identified in the Prospectus.



The asset allocation strategy is designed to reduce the volatility of investment returns in the later years while still providing the potential for higher total returns over the target period. Market conditions and the perceived value of securities will change as the investor moves across the glide path. Although the actual allocations may vary, the chart below illustrates the expected strategic asset allocation of the glide path and the tactical allocation ranges of the core asset classes and sub-asset classes.

YEARS TO TARGET DATE	15	10	5	0	–5	–10
Strategic Allocations
Equity	60%	55%	38%	20%	20%	20%
US Equity	42%	39%	26%	14%	14%	14%
Non-US Developed Equities	18%	17%	11%	6%	6%	6%
Fixed Income	40%	45%	63%	80%	80%	80%
Tactical Allocation Ranges
Equity	50-70%	45-65%	28-48%	10-30%	10-30%	10-30%
US Equity	30-63%	27-59%	17-43%	6-27%	6-27%	6-27%
Non-US Equities	5-28%	5-26%	3-19%	1-12%	1-12%	1-12%
Fixed Income	30-50%	35-55%	53-73%	70-90%	70-90%	70-90%
Sub-Asset Classes and Alternatives
Emerging Markets Equities	0-14%	0-13%	0-10%	0-6%	0-6%	0-6%
Real Estate	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%
Commodities	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%
Other Alternative Strategies	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%

Note: Above allocations may not sum to total due to rounding.

On a periodic basis, the Sub-Adviser will evaluate and may revise the Portfolio’s asset allocation, including revising the asset class weightings and adding and/or removing Underlying Funds. There will be times when the perceived value of equity and/or fixed income securities are stretched (or depressed) and the opportunity to proactively protect against (or take advantage of) these opportunities necessitates an ability to deviate from the glide path’s strategic target. In order to attempt to capitalize on these periodic opportunities, the Sub-Adviser established a “tactical allocation range” that allows flexibility to increase or decrease exposure from the glide path’s strategic allocations. As a result, the Portfolio’s equity and fixed income asset allocation targets may range within the bounds of this tactical allocation range as illustrated in the chart above depending on the Sub-Adviser’s views of the appropriate mix of the Portfolio’s asset allocation based on then-current economic, market or other conditions, or factors unique to the Portfolio. Certain sub-asset classes, like real estate, commodities, and other alternative strategies, may be invested in using the tactical allocation range illustrated in the table above. The Sub-Adviser may also use the tactical allocation range to invest in certain other sub-asset classes within fixed income such as: domestic high yield non-investment grade securities (commonly referred to as “junk bonds”), inflation-linked securities, securities issued by foreign corporate and governmental issuers, sovereign and corporate debt securities of issuers in emerging market countries, convertible securities, and preferred stock. The Sub-Adviser will also monitor the Underlying Funds on an ongoing basis and may increase or decrease the Portfolio’s investment in one or more Underlying Funds. The Underlying Fund selections are made based on several considerations, including the Portfolio’s style or asset class exposures, portfolio characteristics, risk profile, and investment process. With regard to investments in Underlying Funds that invest in debt securities, the Sub-Adviser seeks to select portfolios of securities with long-, intermediate- and short-term maturities. Although the Portfolio does not intend to concentrate its investments in a particular industry, the Portfolio may indirectly concentrate in a particular industry or group of industries through its aggregate investment in one or more Underlying Funds. The particular Underlying Funds in which the Portfolio may invest and the Portfolio's targets and ranges will change from time to time without shareholder approval or notice.

The Sub-Adviser’s strategy is intended to represent a conservative investment strategy. The Sub-Adviser’s expectation is that the Portfolio may participate in market appreciation during bull markets and experience something less than full participation during bear markets compared with other funds holding more speculative and volatile securities. There is no assurance that the Sub-Adviser’s expectations regarding this investment strategy will be realized.

Although the Portfolio expects to pursue its investment objective utilizing its principal investment strategies regardless of market conditions, the Portfolio may invest up to 100% in money market instruments. To the extent the Portfolio engages in this temporary defensive position, the Portfolio’s ability to achieve its investment objective may be diminished.

Management Process

The Investment Adviser and the Portfolio have received an exemptive order from the Securities and Exchange Commission (“SEC”). Under the exemptive order, the Investment Adviser has the ultimate responsibility, subject to oversight by the Portfolio’s Board of Trustees, to oversee the Sub-Adviser and recommend its hiring, termination and replacement. The initial shareholder of the Portfolio approved the Portfolio’s operation in this manner and reliance by the Portfolio on this exemptive order.

Additional Information

The Portfolio’s benchmark index is the S&P Target Date To 2030 Index (the “Index”).

Risk [Heading]

rr_RiskHeading

Principal Risks of the Portfolio

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

Loss of money is a risk of investing in the Portfolio. An investment in the Portfolio is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any government agency. The Portfolio should not be relied upon as a complete investment program. Stated allocations may be subject to change. There can be no assurance that the Portfolio will achieve its investment objective. Investments in the Portfolio involve substantial risks which prospective investors should consider carefully before investing. Investors should also consider, in addition to his or her age or retirement date, other factors, including the investor’s risk tolerance, personal circumstances, and complete financial situation.

Asset Allocation Risk.  The Portfolio’s allocations to various asset classes and to the Underlying Funds may cause the Portfolio to underperform other funds with a similar investment objective.

Expenses.  By investing in the Underlying Funds indirectly through the Portfolio, the investor will incur not only a proportionate share of the expenses of the Underlying Funds held by the Portfolio (including operating costs and investment management fees), but also expenses of the Portfolio.

Inadequate Retirement Income.  An investment in the Portfolio is not guaranteed, and the Portfolio may experience losses, including losses near, at, or after the Target Date. There is no guarantee that the Portfolio will achieve sufficient capital appreciation to provide adequate income at and through retirement. Moreover, there is no guarantee that the Portfolio’s performance will keep pace with or exceed the rate of inflation, which may reduce the value of your investment over time.

Investing in the Underlying Funds.  The investments of the Portfolio may be concentrated in one or more Underlying Funds (including ETFs and other registered investment companies) subject to statutory limitations prescribed by the Investment Company Act of 1940, as amended (the “Investment Company Act”), or exemptive relief thereunder. The Portfolio’s investment performance is directly related to the investment performance of the Underlying Funds it holds. The Portfolio is subject to the risk factors associated with the investments of the Underlying Funds in direct proportion to the amount of assets allocated to each. If the Portfolio has a relative concentration of its portfolio in a single Underlying Fund, it may be more susceptible to adverse developments affecting that Underlying Fund, and may be more susceptible to losses because of these developments.

Investments of the Underlying Funds.  Because the Portfolio invests in the Underlying Funds, the Portfolio’s shareholders will be affected by the investment policies and practices of the Underlying Funds in direct proportion to the amount of assets the Portfolio allocates to those Underlying Funds. A strategy used by the Underlying Funds may fail to produce the intended results.

Large Shareholder Transactions Risk.  The Portfolio may experience adverse effects when certain large shareholders purchase or redeem large amounts of shares of the Portfolio. Such large shareholder redemptions may cause the Portfolio to sell portfolio securities at times when it would not otherwise do so, which may negatively impact the Portfolio’s NAV and liquidity. Similarly, large Portfolio share purchases may adversely affect the Portfolio’s performance to the extent that the Portfolio is delayed in investing new cash and is required to maintain a larger cash position than it ordinarily would. These transactions may also accelerate the realization of taxable income to shareholders if such sales of investments resulted in gains, and may also increase transaction costs. In addition, a large redemption could result in the Portfolio’s current expenses being allocated over a smaller asset base, leading to an increase in the Portfolio’s expense ratio.

Management Risk.  A strategy used by the Sub-Adviser may fail to produce the intended results.

Portfolio Turnover Rate Risk.  A high rate of portfolio turnover (100% or more) involves correspondingly greater expenses which must be borne by the Portfolio and its shareholders, and is also likely to result in short-term capital gains taxable to shareholders.

Underlying ETF Risk.  The Portfolio may invest in Underlying ETFs subject to statutory limitations prescribed by the Investment Company Act, or exemptive relief thereunder. An investment in an Underlying ETF generally presents the same primary risks as an investment in a conventional fund (i.e., one that is not exchange-traded) that has the same investment objectives, strategies and policies. In addition, an ETF may fail to accurately track the market segment or index that underlies its investment objective; however, the market price of the Underlying ETF’s shares may trade at a premium or a discount to their net asset value. The price of an Underlying ETF can fluctuate, and the Portfolio could lose money investing in an Underlying ETF.

Principal Risks of the Underlying Funds

Credit/Default Risk.  An issuer or guarantor of fixed income securities held by an Underlying Fund (which may have low credit ratings) may default on its obligation to pay interest and repay principal or default on any other obligation. Additionally, the credit quality of securities may deteriorate rapidly, which may impair an Underlying Fund’s liquidity and cause significant deterioration in NAV. These risks are more pronounced in connection with an Underlying Fund’s investments in non-investment grade fixed income securities.

Derivatives Risk.  An Underlying Fund’s use of options, forwards, futures, swaps, structured securities and other derivative instruments may result in losses. These instruments, which may pose risks in addition to and greater than those associated with investing directly in securities, currencies or other instruments, may be illiquid or less liquid, volatile, difficult to price and leveraged so that small changes in the value of the underlying instruments may produce disproportionate losses to the Underlying Fund. Certain derivatives are also subject to counterparty risk, which is the risk that the other party in the transaction will not fulfill its contractual obligations. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with investments in more traditional securities and instruments.

Foreign and Emerging Countries Risk.  Foreign securities may be subject to risk of loss because of more or less foreign government regulation, less public information and less economic, political and social stability in the countries in which the Portfolio invests. The imposition of exchange controls, sanctions, confiscations, trade restrictions (including tariffs) and other government restrictions by the United States and other governments, or from problems in share registration, settlement or custody, may also result in losses. Foreign risk also involves the risk of negative foreign currency rate fluctuations, which may cause the value of securities denominated in such foreign currency (or other instruments through which an Underlying Fund has exposure to foreign currencies) to decline in value. Currency exchange rates may fluctuate significantly over short periods of time. These risks may be more pronounced in connection with the Underlying Fund’s investments in securities of issuers located in emerging countries.

Geographic Risk.  If an Underlying Fund focuses its investments in issuers located in a particular country or region, the Underlying Fund may be subjected, to a greater extent than if investments were less focused, to the risks of volatile economic cycles and/or conditions and developments that may be particular to that country or region, such as: adverse securities markets; adverse exchange rates; adverse social, political, regulatory, economic, business, environmental or other developments; or natural disasters.

Interest Rate Risk.  When interest rates increase, fixed income securities or instruments held by an Underlying Fund will generally decline in value. Long-term fixed income securities or instruments will normally have more price volatility because of this risk than short-term fixed income securities or instruments. The risks associated with increasing rates are heightened given that interest rates are near historic lows, but may be expected to increase in the future with unpredictable effects on the markets and an Underlying Fund’s investments. Fluctuations in interest rates may also affect the liquidity of fixed income securities and instruments held by an Underlying Fund.

Leverage Risk.  Borrowing and the use of derivatives may result in leverage and may make an Underlying Fund more volatile. The use of leverage may cause an Underlying Fund to liquidate portfolio positions to satisfy its obligations or to meet asset segregation requirements when it may not be advantageous to do so. The use of leverage by an Underlying Fund can substantially increase the adverse impact to which its investment portfolio may be subject.

Liquidity Risk.  An Underlying Fund may make investments that are illiquid or that may become less liquid in response to market developments or adverse investor perceptions. Illiquid investments may be more difficult to value. Liquidity risk may also refer to the risk that an Underlying Fund will not be able to pay redemption proceeds within the allowable time period because of unusual market conditions, an unusually high volume of redemption requests or other reasons. To meet redemption requests, an Underlying Fund may be forced to sell securities, at an unfavorable time and/or under unfavorable conditions. Liquidity risk may be the result of, among other things, the reduced number and capacity of traditional market participants to make a market in fixed income securities or the lack of an active market. The potential for liquidity risk may be magnified by a rising interest rate environment or other circumstances where investor redemptions from fixed income mutual funds may be higher than normal, potentially causing increased supply in the market due to selling activity.

Market Risk.  The value of the securities in which an Underlying Fund invests may go up or down in response to the prospects of individual companies, particular sectors or governments and/or general economic conditions throughout the world due to increasingly interconnected global economies and financial markets.

Mid-Cap and Small-Cap Risk.  Certain of the Underlying Funds may make investments mid-capitalization and small-capitalization companies involve greater risks than those associated with larger, more established companies. These securities may be subject to more abrupt or erratic price movements and may lack sufficient market liquidity, and these issuers often face greater business risks.

Mortgage-Backed and Other Asset-Backed Securities Risk.  Mortgage-related and other asset-backed securities are subject to certain additional risks, including “extension risk” (i.e., in periods of rising interest rates, issuers may pay principal later than expected) and “prepayment risk” (i.e., in periods of declining interest rates, issuers may pay principal more quickly than expected, causing an Underlying Fund to reinvest proceeds at lower prevailing interest rates). Mortgage-backed securities offered by non-governmental issuers are subject to other risks as well, including failures of private insurers to meet their obligations and unexpectedly high rates of default on the mortgages backing the securities. Other asset-backed securities are subject to risks similar to those associated with mortgage-backed securities, as well as risks associated with the nature and servicing of the assets backing the securities. Asset-backed securities may not have the benefit of a security interest in collateral comparable to that of mortgage assets, resulting in additional credit risk.

Non-Investment Grade Investments Risk.  Non-investment grade fixed income securities and unrated securities of comparable credit quality (commonly known as “junk bonds”) are considered speculative and are subject to the increased risk of an issuer’s inability to meet principal and interest payment obligations. These securities may be subject to greater price volatility due to such factors as specific issuer developments, interest rate sensitivity, negative perceptions of the junk bond markets generally and less liquidity.

Stock Risk.  Stock prices have historically risen and fallen in periodic cycles. U.S. and foreign stock markets have experienced periods of substantial price volatility in the past and may do so again in the future.

U.S. Government Securities Risk.  The U.S. government may not provide financial support to U.S. government agencies, instrumentalities or sponsored enterprises if it is not obligated to do so by law. U.S. Government Securities issued by those agencies, instrumentalities and sponsored enterprises, including those issued by the Federal National Mortgage Association (“Fannie Mae”), Federal Home Loan Mortgage Corporation (“Freddie Mac”) and the Federal Home Loan Banks, are neither issued nor guaranteed by the U.S. Treasury and, therefore, are not backed by the full faith and credit of the United States. The maximum potential liability of the issuers of some U.S. Government Securities held by an Underlying Fund may greatly exceed their current resources, including any legal right to support from the U.S. Treasury. It is possible that issuers of U.S. Government Securities will not have the funds to meet their payment obligations in the future.

Risk Lose Money [Text]

rr_RiskLoseMoney

Loss of money is a risk of investing in the Portfolio.

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Portfolio is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any government agency.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

Effective August 22, 2016, the Madison Target Retirement 2030 Fund, a series of Madison Funds (the “Predecessor Fund”), was reorganized into the Portfolio. As accounting successor to the Predecessor Fund, the Portfolio has assumed the Predecessor Fund’s historical performance. Therefore, the performance information shown below for periods prior to August 22, 2016 is that of the Predecessor Fund. The returns presented for the Portfolio for periods prior to August 29, 2014 reflect the performance of the Madison Target Retirement 2030 Fund’s Class I Shares, a series of Ultra Series Fund (the “Ultra Predecessor Fund”). As of August 29, 2014, the inception date of the Predecessor Fund, the Ultra Predecessor Fund exchanged in kind substantially all of its portfolio holdings for Class R6 shares of the Predecessor Fund. As a result, the Predecessor Fund assumed the performance of the Ultra Predecessor Fund.

The bar chart and table below provide an indication of the risks of investing in the Portfolio by showing: (a) changes in the performance of the Portfolio’s Class R6 Shares from year to year; and (b) how the average annual total returns of the Portfolio’s Class R6 Shares compare to those of a broad-based securities market index. The Portfolio has different fees and expenses from those of the Predecessor Fund and would, therefore, have had different performance results. Past performance of the Portfolio, before and after taxes, is not necessarily an indication of how the Portfolio will perform in the future. Performance information for the Portfolio is available at no cost at www.gsamfunds.com/performance or by calling the appropriate phone number on the back cover of the Prospectus.

Because the Predecessor Fund did not offer Class A, Institutional, Service, Investor and Class R Shares, and the Class A, Institutional, Service, Investor and Class R Shares of the Portfolio have not operated for a full calendar year as of the date of the Prospectus, no performance information is shown for those share classes.

Performance reflects applicable fee waivers and/or expense limitations in effect during the periods shown.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The bar chart and table below provide an indication of the risks of investing in the Portfolio by showing: (a) changes in the performance of the Portfolio’s Class R6 Shares from year to year; and (b) how the average annual total returns of the Portfolio’s Class R6 Shares compare to those of a broad-based securities market index.

Performance One Year or Less [Text]

rr_PerformanceOneYearOrLess

Because the Predecessor Fund did not offer Class A, Institutional, Service, Investor and Class R Shares, and the Class A, Institutional, Service, Investor and Class R Shares of the Portfolio have not operated for a full calendar year as of the date of the Prospectus, no performance information is shown for those share classes.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

www.gsamfunds.com/performance

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Past performance of the Portfolio, before and after taxes, is not necessarily an indication of how the Portfolio will perform in the future.

Bar Chart [Heading]

rr_BarChartHeading

TOTAL RETURN CALENDAR YEAR (CLASS R6)

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

The total return for Class R6 Shares for the 9-month period ended September 30, 2017 was 9.63%.

Best Quarter
Q2 ‘09          +16.77%

Worst Quarter
Q4 ‘08          –21.65%

Performance Table Heading

rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS

For the period ended December 31, 2016

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 an investor’s tax situation and may differ from those shown. In addition, the after-tax returns shown are not relevant to investors who hold Portfolio shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts.

Performance Table Narrative

rr_PerformanceTableNarrativeTextBlock

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. In addition, the after-tax returns shown are not relevant to investors who hold Portfolio shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts.

Goldman Sachs Target Date 2030 Portfolio | Class A

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

5.50%

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

0.67%

Other Expenses

rr_OtherExpensesOverAssets

0.67%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

1.34%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(0.47%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.87%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 634

3 Years

rr_ExpenseExampleYear03

907

5 Years

rr_ExpenseExampleYear05

1,201

10 Years

rr_ExpenseExampleYear10

$ 2,035

Goldman Sachs Target Date 2030 Portfolio | Institutional

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

0.53%

Other Expenses

rr_OtherExpensesOverAssets

0.53%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

0.95%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(0.47%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.48%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 49

3 Years

rr_ExpenseExampleYear03

256

5 Years

rr_ExpenseExampleYear05

480

10 Years

rr_ExpenseExampleYear10

$ 1,123

Goldman Sachs Target Date 2030 Portfolio | Service

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

0.25%

All Other Expenses

rr_Component2OtherExpensesOverAssets

0.53%

Other Expenses

rr_OtherExpensesOverAssets

0.78%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

1.45%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(0.47%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.98%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 100

3 Years

rr_ExpenseExampleYear03

412

5 Years

rr_ExpenseExampleYear05

747

10 Years

rr_ExpenseExampleYear10

$ 1,695

Goldman Sachs Target Date 2030 Portfolio | Investor

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

0.67%

Other Expenses

rr_OtherExpensesOverAssets

0.67%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

1.09%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(0.47%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.62%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 63

3 Years

rr_ExpenseExampleYear03

300

5 Years

rr_ExpenseExampleYear05

555

10 Years

rr_ExpenseExampleYear10

$ 1,286

Goldman Sachs Target Date 2030 Portfolio | Class R

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.50%

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

0.67%

Other Expenses

rr_OtherExpensesOverAssets

0.67%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

1.59%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(0.47%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

1.12%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 114

3 Years

rr_ExpenseExampleYear03

456

5 Years

rr_ExpenseExampleYear05

821

10 Years

rr_ExpenseExampleYear10

$ 1,850

Goldman Sachs Target Date 2030 Portfolio | Class R6

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

0.52%

Other Expenses

rr_OtherExpensesOverAssets

0.52%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

0.94%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(0.47%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.47%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 48

3 Years

rr_ExpenseExampleYear03

253

5 Years

rr_ExpenseExampleYear05

474

10 Years

rr_ExpenseExampleYear10

$ 1,112

2008

rr_AnnualReturn2008

(38.35%)

2009

rr_AnnualReturn2009

30.94%

2010

rr_AnnualReturn2010

9.56%

2011

rr_AnnualReturn2011

1.16%

2012

rr_AnnualReturn2012

11.05%

2013

rr_AnnualReturn2013

16.56%

2014

rr_AnnualReturn2014

8.03%

2015

rr_AnnualReturn2015

(0.87%)

2016

rr_AnnualReturn2016

7.51%

Year to Date Return, Label

rr_YearToDateReturnLabel

total return

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2017

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

9.63%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Jun. 30, 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

16.77%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2008

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(21.65%)

1 Year

rr_AverageAnnualReturnYear01

7.51%

5 Years

rr_AverageAnnualReturnYear05

8.30%

Since Inception

rr_AverageAnnualReturnSinceInception

2.87%

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 01, 2007

Goldman Sachs Target Date 2030 Portfolio | Returns After Taxes on Distributions | Class R6

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

5.89%

5 Years

rr_AverageAnnualReturnYear05

7.97%

Since Inception

rr_AverageAnnualReturnSinceInception

2.70%

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 01, 2007

Goldman Sachs Target Date 2030 Portfolio | Returns After Taxes on Distributions and Sale of Portfolio Shares | Class R6

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

5.03%

5 Years

rr_AverageAnnualReturnYear05

6.49%

Since Inception

rr_AverageAnnualReturnSinceInception

2.21%

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 01, 2007

Goldman Sachs Target Date 2030 Portfolio | S&P Target Date To 2030 Index (reflects no deduction for sales charges, account fees, expenses or taxes)

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

7.73%

5 Years

rr_AverageAnnualReturnYear05

7.95%

Since Inception

rr_AverageAnnualReturnSinceInception

3.62%

[1] The Portfolio’s “Other Expenses” have been restated to reflect expenses expected to be incurred during the current fiscal year.

[2] The Total Annual Portfolio Operating Expenses do not correlate to the ratios of the net and total expenses to average net assets provided in the Financial Highlights, which reflect the operating expenses of the Portfolio and do not include Acquired (Underlying) Fund Fees and Expenses.

[3] The Investment Adviser has agreed to reduce or limit “Other Expenses” (excluding acquired (underlying) fund fees and expenses, transfer agency fees and expenses, service fees, shareholder administration fees, taxes, interest, brokerage fees, expenses of shareholder meetings, litigation and indemnification, and extraordinary expenses) to 0.024% of the Portfolio’s average daily net assets. Additionally, Goldman Sachs & Co. LLC (“Goldman Sachs”), the Portfolio’s transfer agent, has agreed to waive a portion of its transfer agency fee (a component of “Other Expenses”) equal to 0.01% as an annual percentage rate of the average daily net assets attributable to Class R6 Shares of the Portfolio. These arrangements will remain in effect through at least December 29, 2018, and prior to such date, the Investment Adviser and Goldman Sachs (as applicable) may not terminate the arrangements without the approval of the Board of Trustees.

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Goldman Sachs Target Date 2035 Portfolio

Goldman Sachs Target Date 2035 Portfolio—Summary

Investment Objective

The Goldman Sachs Target Date 2035 Portfolio (the “Portfolio”) seeks to provide capital appreciation and current income consistent with its current asset allocation.

Fees and Expenses of the Portfolio

This table describes the fees and expenses that you may pay if you buy and hold shares of the Portfolio. You may qualify for sales charge discounts on purchases of Class A Shares if you invest at least $50,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 82 and in Appendix C—Additional Information About Sales Charge Variations, Waivers and Discounts on page 126 of the Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-133 of the Portfolio’s Statement of Additional Information (“SAI”).

Shareholder Fees
(fees paid directly from your investment)

Shareholder Fees - Goldman Sachs Target Date 2035 Portfolio	Class A	Institutional	Service	Investor	Class R	Class R6
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.50%	none	none	none	none	none

Annual Portfolio Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Annual Portfolio Operating Expenses - Goldman Sachs Target Date 2035 Portfolio		Class A	Institutional	Service	Investor	Class R	Class R6
Management Fees		0.25%	0.25%	0.25%	0.25%	0.25%	0.25%
Distribution and/or Service (12b-1) Fees		0.25%	none	0.25%	none	0.50%	none
Other Expenses	[1]	2.59%	2.45%	2.70%	2.59%	2.59%	2.44%
Shareholder Administration Fees		none	none	0.25%	none	none	none
All Other Expenses		2.59%	2.45%	2.45%	2.59%	2.59%	2.44%
Acquired (Underlying) Fund Fees and Expenses		0.17%	0.17%	0.17%	0.17%	0.17%	0.17%
Total Annual Portfolio Operating Expenses	[2]	3.26%	2.87%	3.37%	3.01%	3.51%	2.86%
Fee Waiver and Expense Limitation	[3]	(2.39%)	(2.39%)	(2.39%)	(2.39%)	(2.39%)	(2.39%)
Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation	[2]	0.87%	0.48%	0.98%	0.62%	1.12%	0.47%

Expense Example

This Example is intended to help you compare the cost of investing in the Portfolio with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in Class A, Institutional, Service, Investor, Class R and/or Class R6 Shares of the Portfolio for the time periods indicated and then redeem all of your Class A, Institutional, Service, Investor, Class R and/or Class R6 Shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Portfolio’s operating expenses remain the same (except that the Example incorporates the fee waiver and expense limitation arrangements for only the first year). Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example - Goldman Sachs Target Date 2035 Portfolio - USD ($)	1 Year	3 Years	5 Years	10 Years
Class A Shares	634	1,287	1,962	3,757
Institutional Shares	49	662	1,301	3,022
Service Shares	100	813	1,549	3,496
Investor Shares	63	704	1,371	3,157
Class R Shares	114	854	1,617	3,624
Class R6 Shares	48	659	1,296	3,012

Portfolio Turnover

The Portfolio may pay transaction costs when it buys and sells securities or instruments (i.e., “turns over” its portfolio). A high rate of portfolio turnover may result in increased transaction costs, including brokerage commissions, which must be borne by the Portfolio and its shareholders, and is also likely to result in higher short-term capital gains for taxable shareholders. These costs are not reflected in annual fund operating expenses or in the expense example above, but are reflected in the Portfolio’s performance. The Portfolio’s portfolio turnover rate for the fiscal period ended August 31, 2017 was 137% of the average value of its portfolio.

Principal Strategy

The Portfolio employs an asset allocation strategy designed for investors who plan to retire and to begin gradually withdrawing their investment from the Portfolio beginning in approximately 2035 (the “Target Date”). The Portfolio is managed for an investor planning to retire at the age of 65 on or around the Target Date.

The Portfolio generally seeks to achieve its investment objective by investing in shares of exchange-traded funds (“Underlying ETFs”) and other registered investment companies (collectively, the “Underlying Funds”), according to an asset allocation strategy, developed by Madison Asset Management, LLC (the “Sub-Adviser”) who is unaffiliated with the Investment Adviser, for investors planning to retire in or within a few years of 2035. Over time, the Portfolio’s asset allocation will become more conservative until it reaches approximately 10-30% in equity funds and 70-90% in fixed income funds at the Target Date as illustrated in the graph below. After the Target Date, and as also illustrated in the graph below, the Portfolio’s asset allocation targets are expected to remain within these approximate ranges. The graph below applies to each Goldman Sachs Target Date Portfolio identified in the Prospectus.



The asset allocation strategy is designed to reduce the volatility of investment returns in the later years while still providing the potential for higher total returns over the target period. Market conditions and the perceived value of securities will change as the investor moves across the glide path. Although the actual allocations may vary, the chart below illustrates the expected strategic asset allocation of the glide path and the tactical allocation ranges of the core asset classes and sub-asset classes.

YEARS TO TARGET DATE	20	15	10	5	0	–5	–10
Strategic Allocations
Equity	65%	60%	55%	38%	20%	20%	20%
US Equity	46%	42%	39%	26%	14%	14%	14%
Non-US Developed Equities	20%	18%	17%	11%	6%	6%	6%
Fixed Income	35%	40%	45%	63%	80%	80%	80%
Tactical Allocation Ranges
Equity	55-75%	50-70%	45-65%	28-48%	10-30%	10-30%	10-30%
US Equity	33-68%	30-63%	27-59%	17-43%	6-27%	6-27%	6-27%
Non-US Equities	6-30%	5-28%	5-26%	3-19%	1-12%	1-12%	1-12%
Fixed Income	25-45%	30-50%	35-55%	53-73%	70-90%	70-90%	70-90%
Sub-Asset Classes and Alternatives
Emerging Markets Equities	0-15%	0-14%	0-13%	0-10%	0-6%	0-6%	0-6%
Real Estate	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%
Commodities	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%
Other Alternative Strategies	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%

Note: Above allocations may not sum to total due to rounding.

On a periodic basis, the Sub-Adviser will evaluate and may revise the Portfolio’s asset allocation, including revising the asset class weightings and adding and/or removing Underlying Funds. There will be times when the perceived value of equity and/or fixed income securities are stretched (or depressed) and the opportunity to proactively protect against (or take advantage of) these opportunities necessitates an ability to deviate from the glide path’s strategic target. In order to attempt to capitalize on these periodic opportunities, the Sub-Adviser established a “tactical allocation range” that allows flexibility to increase or decrease exposure from the glide path’s strategic allocations. As a result, the Portfolio’s equity and fixed income asset allocation targets may range within the bounds of this tactical allocation range as illustrated in the chart above depending on the Sub-Adviser’s views of the appropriate mix of the Portfolio’s asset allocation based on then-current economic, market or other conditions, or factors unique to the Portfolio. Certain sub-asset classes, like real estate, commodities, and other alternative strategies, may be invested in using the tactical allocation range illustrated in the table above. The Sub-Adviser may also use the tactical allocation range to invest in certain other sub-asset classes within fixed income such as: domestic high yield non-investment grade securities (commonly referred to as “junk bonds”), inflation-linked securities, securities issued by foreign corporate and governmental issuers, sovereign and corporate debt securities of issuers in emerging market countries, convertible securities, and preferred stock. The Sub-Adviser will also monitor the Underlying Funds on an ongoing basis and may increase or decrease the Portfolio’s investment in one or more Underlying Funds. The Underlying Fund selections are made based on several considerations, including the Portfolio’s style or asset class exposures, portfolio characteristics, risk profile, and investment process. With regard to investments in Underlying Funds that invest in debt securities, the Sub-Adviser seeks to select portfolios of securities with long-, intermediate- and short-term maturities. Although the Portfolio does not intend to concentrate its investments in a particular industry, the Portfolio may indirectly concentrate in a particular industry or group of industries through its aggregate investment in one or more Underlying Funds. The particular Underlying Funds in which the Portfolio may invest and the Portfolio’s targets and ranges will change from time to time without shareholder approval or notice.

The Sub-Adviser’s strategy is intended to represent a conservative investment strategy. The Sub-Adviser’s expectation is that the Portfolio may participate in market appreciation during bull markets and experience something less than full participation during bear markets compared with other funds holding more speculative and volatile securities. There is no assurance that the Sub-Adviser’s expectations regarding this investment strategy will be realized.

Although the Portfolio expects to pursue its investment objective utilizing its principal investment strategies regardless of market conditions, the Portfolio may invest up to 100% in money market instruments. To the extent the Portfolio engages in this temporary defensive position, the Portfolio’s ability to achieve its investment objective may be diminished.

Management Process

The Investment Adviser and the Portfolio have received an exemptive order from the Securities and Exchange Commission (“SEC”). Under the exemptive order, the Investment Adviser has the ultimate responsibility, subject to oversight by the Portfolio’s Board of Trustees, to oversee the Sub-Adviser and recommend its hiring, termination and replacement. The initial shareholder of the Portfolio approved the Portfolio’s operation in this manner and reliance by the Portfolio on this exemptive order.

Additional Information

The Portfolio’s benchmark index is the S&P Target Date To 2035 Index (the “Index”).

Principal Risks of the Portfolio

Loss of money is a risk of investing in the Portfolio. An investment in the Portfolio is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any government agency. The Portfolio should not be relied upon as a complete investment program. Stated allocations may be subject to change. There can be no assurance that the Portfolio will achieve its investment objective. Investments in the Portfolio involve substantial risks which prospective investors should consider carefully before investing. Investors should also consider, in addition to his or her age or retirement date, other factors, including the investor’s risk tolerance, personal circumstances, and complete financial situation.

Asset Allocation Risk.  The Portfolio’s allocations to various asset classes and to the Underlying Funds may cause the Portfolio to underperform other funds with a similar investment objective.

Expenses.  By investing in the Underlying Funds indirectly through the Portfolio, the investor will incur not only a proportionate share of the expenses of the Underlying Funds held by the Portfolio (including operating costs and investment management fees), but also expenses of the Portfolio.

Inadequate Retirement Income.  An investment in the Portfolio is not guaranteed, and the Portfolio may experience losses, including losses near, at, or after the Target Date. There is no guarantee that the Portfolio will achieve sufficient capital appreciation to provide adequate income at and through retirement. Moreover, there is no guarantee that the Portfolio’s performance will keep pace with or exceed the rate of inflation, which may reduce the value of your investment over time.

Investing in the Underlying Funds.  The investments of the Portfolio may be concentrated in one or more Underlying Funds (including ETFs and other registered investment companies) subject to statutory limitations prescribed by the Investment Company Act of 1940, as amended (the “Investment Company Act”), or exemptive relief thereunder. The Portfolio’s investment performance is directly related to the investment performance of the Underlying Funds it holds. The Portfolio is subject to the risk factors associated with the investments of the Underlying Funds in direct proportion to the amount of assets allocated to each. If the Portfolio has a relative concentration of its portfolio in a single Underlying Fund, it may be more susceptible to adverse developments affecting that Underlying Fund, and may be more susceptible to losses because of these developments.

Investments of the Underlying Funds.  Because the Portfolio invests in the Underlying Funds, the Portfolio’s shareholders will be affected by the investment policies and practices of the Underlying Funds in direct proportion to the amount of assets the Portfolio allocates to those Underlying Funds. A strategy used by the Underlying Funds may fail to produce the intended results.

Large Shareholder Transactions Risk.  The Portfolio may experience adverse effects when certain large shareholders purchase or redeem large amounts of shares of the Portfolio. Such large shareholder redemptions may cause the Portfolio to sell portfolio securities at times when it would not otherwise do so, which may negatively impact the Portfolio’s NAV and liquidity. Similarly, large Portfolio share purchases may adversely affect the Portfolio’s performance to the extent that the Portfolio is delayed in investing new cash and is required to maintain a larger cash position than it ordinarily would. These transactions may also accelerate the realization of taxable income to shareholders if such sales of investments resulted in gains, and may also increase transaction costs. In addition, a large redemption could result in the Portfolio’s current expenses being allocated over a smaller asset base, leading to an increase in the Portfolio’s expense ratio.

Management Risk.  A strategy used by the Sub-Adviser may fail to produce the intended results.

Portfolio Turnover Rate Risk.  A high rate of portfolio turnover (100% or more) involves correspondingly greater expenses which must be borne by the Portfolio and its shareholders, and is also likely to result in short-term capital gains taxable to shareholders.

Underlying ETF Risk.  The Portfolio may invest in Underlying ETFs subject to statutory limitations prescribed by the Investment Company Act, or exemptive relief thereunder. An investment in an Underlying ETF generally presents the same primary risks as an investment in a conventional fund (i.e., one that is not exchange-traded) that has the same investment objectives, strategies and policies. In addition, an ETF may fail to accurately track the market segment or index that underlies its investment objective; however, the market price of the Underlying ETF’s shares may trade at a premium or a discount to their net asset value. The price of an Underlying ETF can fluctuate, and the Portfolio could lose money investing in an Underlying ETF.

Principal Risks of the Underlying Funds

Credit/Default Risk.  An issuer or guarantor of fixed income securities held by an Underlying Fund (which may have low credit ratings) may default on its obligation to pay interest and repay principal or default on any other obligation. Additionally, the credit quality of securities may deteriorate rapidly, which may impair an Underlying Fund’s liquidity and cause significant deterioration in NAV. These risks are more pronounced in connection with an Underlying Fund’s investments in non-investment grade fixed income securities.

Derivatives Risk.  An Underlying Fund’s use of options, forwards, futures, swaps, structured securities and other derivative instruments may result in losses. These instruments, which may pose risks in addition to and greater than those associated with investing directly in securities, currencies or other instruments, may be illiquid or less liquid, volatile, difficult to price and leveraged so that small changes in the value of the underlying instruments may produce disproportionate losses to the Underlying Fund. Certain derivatives are also subject to counterparty risk, which is the risk that the other party in the transaction will not fulfill its contractual obligations. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with investments in more traditional securities and instruments.

Foreign and Emerging Countries Risk.  Foreign securities may be subject to risk of loss because of more or less foreign government regulation, less public information and less economic, political and social stability in the countries in which the Portfolio invests. The imposition of exchange controls, sanctions, confiscations, trade restrictions (including tariffs) and other government restrictions by the United States and other governments, or from problems in share registration, settlement or custody, may also result in losses. Foreign risk also involves the risk of negative foreign currency rate fluctuations, which may cause the value of securities denominated in such foreign currency (or other instruments through which an Underlying Fund has exposure to foreign currencies) to decline in value. Currency exchange rates may fluctuate significantly over short periods of time. These risks may be more pronounced in connection with the Underlying Fund’s investments in securities of issuers located in emerging countries.

Geographic Risk.  If an Underlying Fund focuses its investments in issuers located in a particular country or region, the Underlying Fund may be subjected, to a greater extent than if investments were less focused, to the risks of volatile economic cycles and/or conditions and developments that may be particular to that country or region, such as: adverse securities markets; adverse exchange rates; adverse social, political, regulatory, economic, business, environmental or other developments; or natural disasters.

Interest Rate Risk.  When interest rates increase, fixed income securities or instruments held by an Underlying Fund will generally decline in value. Long-term fixed income securities or instruments will normally have more price volatility because of this risk than short-term fixed income securities or instruments. The risks associated with increasing rates are heightened given that interest rates are near historic lows, but may be expected to increase in the future with unpredictable effects on the markets and an Underlying Fund’s investments. Fluctuations in interest rates may also affect the liquidity of fixed income securities and instruments held by an Underlying Fund.

Leverage Risk.  Borrowing and the use of derivatives may result in leverage and may make an Underlying Fund more volatile. The use of leverage may cause an Underlying Fund to liquidate portfolio positions to satisfy its obligations or to meet asset segregation requirements when it may not be advantageous to do so. The use of leverage by an Underlying Fund can substantially increase the adverse impact to which its investment portfolio may be subject.

Liquidity Risk.  An Underlying Fund may make investments that are illiquid or that may become less liquid in response to market developments or adverse investor perceptions. Illiquid investments may be more difficult to value. Liquidity risk may also refer to the risk that an Underlying Fund will not be able to pay redemption proceeds within the allowable time period because of unusual market conditions, an unusually high volume of redemption requests or other reasons. To meet redemption requests, an Underlying Fund may be forced to sell securities, at an unfavorable time and/or under unfavorable conditions. Liquidity risk may be the result of, among other things, the reduced number and capacity of traditional market participants to make a market in fixed income securities or the lack of an active market. The potential for liquidity risk may be magnified by a rising interest rate environment or other circumstances where investor redemptions from fixed income mutual funds may be higher than normal, potentially causing increased supply in the market due to selling activity.

Market Risk.  The value of the securities in which an Underlying Fund invests may go up or down in response to the prospects of individual companies, particular sectors or governments and/or general economic conditions throughout the world due to increasingly interconnected global economies and financial markets.

Mid-Cap and Small-Cap Risk.  Certain of the Underlying Funds may make investments mid-capitalization and small-capitalization companies involve greater risks than those associated with larger, more established companies. These securities may be subject to more abrupt or erratic price movements and may lack sufficient market liquidity, and these issuers often face greater business risks.

Mortgage-Backed and Other Asset-Backed Securities Risk.  Mortgage-related and other asset-backed securities are subject to certain additional risks, including “extension risk” (i.e., in periods of rising interest rates, issuers may pay principal later than expected) and “prepayment risk” (i.e., in periods of declining interest rates, issuers may pay principal more quickly than expected, causing an Underlying Fund to reinvest proceeds at lower prevailing interest rates). Mortgage-backed securities offered by non-governmental issuers are subject to other risks as well, including failures of private insurers to meet their obligations and unexpectedly high rates of default on the mortgages backing the securities. Other asset-backed securities are subject to risks similar to those associated with mortgage-backed securities, as well as risks associated with the nature and servicing of the assets backing the securities. Asset-backed securities may not have the benefit of a security interest in collateral comparable to that of mortgage assets, resulting in additional credit risk.

Non-Investment Grade Investments Risk.  Non-investment grade fixed income securities and unrated securities of comparable credit quality (commonly known as “junk bonds”) are considered speculative and are subject to the increased risk of an issuer’s inability to meet principal and interest payment obligations. These securities may be subject to greater price volatility due to such factors as specific issuer developments, interest rate sensitivity, negative perceptions of the junk bond markets generally and less liquidity.

Stock Risk.  Stock prices have historically risen and fallen in periodic cycles. U.S. and foreign stock markets have experienced periods of substantial price volatility in the past and may do so again in the future.

U.S. Government Securities Risk.  The U.S. government may not provide financial support to U.S. government agencies, instrumentalities or sponsored enterprises if it is not obligated to do so by law. U.S. Government Securities issued by those agencies, instrumentalities and sponsored enterprises, including those issued by the Federal National Mortgage Association (“Fannie Mae”), Federal Home Loan Mortgage Corporation (“Freddie Mac”) and the Federal Home Loan Banks, are neither issued nor guaranteed by the U.S. Treasury and, therefore, are not backed by the full faith and credit of the United States. The maximum potential liability of the issuers of some U.S. Government Securities held by an Underlying Fund may greatly exceed their current resources, including any legal right to support from the U.S. Treasury. It is possible that issuers of U.S. Government Securities will not have the funds to meet their payment obligations in the future.

Performance

As the Portfolio has not operated for a full calendar year as of the date of the Prospectus, there is no performance information quoted for the Portfolio. Updated performance information is available at no cost at www.gsamfunds.com/performance or by calling the phone number on the back of the Prospectus.

[1] The Portfolio’s “Other Expenses” have been restated to reflect expenses expected to be incurred during the current fiscal year.

[2] The Total Annual Portfolio Operating Expenses do not correlate to the ratios of the net and total expenses to average net assets provided in the Financial Highlights, which reflect the operating expenses of the Portfolio and do not include Acquired (Underlying) Fund Fees and Expenses.

[3] The Investment Adviser has agreed to reduce or limit "Other Expenses" (excluding acquired (underlying) fund fees and expenses, transfer agency fees and expenses, service fees, shareholder administration fees, taxes, interest, brokerage fees, expenses of shareholder meetings, litigation and indemnification, and extraordinary expenses) to 0.014% of the Portfolio's average daily net assets. Additionally, Goldman Sachs & Co. LLC ("Goldman Sachs"), the Portfolio's transfer agent, has agreed to waive a portion of its transfer agency fee (a component of "Other Expenses") equal to 0.01% as an annual percentage rate of the average daily net assets attributable to Class R6 Shares of the Portfolio. These arrangements will remain in effect through at least December 29, 2018, and prior to such date, the Investment Adviser and Goldman Sachs (as applicable) may not terminate the arrangements without the approval of the Board of Trustees.

XML

Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Registrant Name

dei_EntityRegistrantName

Goldman Sachs Trust II

Prospectus Date

rr_ProspectusDate

May 21, 2018

Goldman Sachs Target Date 2035 Portfolio

Risk/Return:

rr_RiskReturnAbstract

Risk/Return [Heading]

rr_RiskReturnHeading

Goldman Sachs Target Date 2035 Portfolio—Summary

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Goldman Sachs Target Date 2035 Portfolio (the “Portfolio”) seeks to provide capital appreciation and current income consistent with its current asset allocation.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses of the Portfolio

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 Portfolio. You may qualify for sales charge discounts on purchases of Class A Shares if you invest at least $50,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 82 and in Appendix C—Additional Information About Sales Charge Variations, Waivers and Discounts on page 126 of the Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-133 of the Portfolio’s Statement of Additional Information (“SAI”).

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees
(fees paid directly from your investment)

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Portfolio Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

December 29, 2018

Portfolio Turnover [Heading]

rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block]

rr_PortfolioTurnoverTextBlock

The Portfolio may pay transaction costs when it buys and sells securities or instruments (i.e., “turns over” its portfolio). A high rate of portfolio turnover may result in increased transaction costs, including brokerage commissions, which must be borne by the Portfolio and its shareholders, and is also likely to result in higher short-term capital gains for taxable shareholders. These costs are not reflected in annual fund operating expenses or in the expense example above, but are reflected in the Portfolio’s performance. The Portfolio’s portfolio turnover rate for the fiscal period ended August 31, 2017 was 137% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

137.00%

Expense Breakpoint Discounts [Text]

rr_ExpenseBreakpointDiscounts

You may qualify for sales charge discounts on purchases of Class A Shares if you invest at least $50,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 82 and in Appendix C—Additional Information About Sales Charge Variations, Waivers and Discounts on page 126 of the Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-133 of the Portfolio’s Statement of Additional Information (“SAI”).

Expense Breakpoint, Minimum Investment Required [Amount]

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

$ 50,000

Expenses Restated to Reflect Current [Text]

rr_ExpensesRestatedToReflectCurrent

The Portfolio’s “Other Expenses” have been restated to reflect expenses expected to be incurred during the current fiscal year.

Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text]

rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees

The Total Annual Portfolio Operating Expenses do not correlate to the ratios of the net and total expenses to average net assets provided in the Financial Highlights, which reflect the operating expenses of the Portfolio and do not include Acquired (Underlying) Fund Fees and Expenses.

Expense Example [Heading]

rr_ExpenseExampleHeading

Expense Example

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This Example is intended to help you compare the cost of investing in the Portfolio with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in Class A, Institutional, Service, Investor, Class R and/or Class R6 Shares of the Portfolio for the time periods indicated and then redeem all of your Class A, Institutional, Service, Investor, Class R and/or Class R6 Shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Portfolio’s operating expenses remain the same (except that the Example incorporates the fee waiver and expense limitation arrangements for only the first year). Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Strategy [Heading]

rr_StrategyHeading

Principal Strategy

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

The Portfolio employs an asset allocation strategy designed for investors who plan to retire and to begin gradually withdrawing their investment from the Portfolio beginning in approximately 2035 (the “Target Date”). The Portfolio is managed for an investor planning to retire at the age of 65 on or around the Target Date.

The Portfolio generally seeks to achieve its investment objective by investing in shares of exchange-traded funds (“Underlying ETFs”) and other registered investment companies (collectively, the “Underlying Funds”), according to an asset allocation strategy, developed by Madison Asset Management, LLC (the “Sub-Adviser”) who is unaffiliated with the Investment Adviser, for investors planning to retire in or within a few years of 2035. Over time, the Portfolio’s asset allocation will become more conservative until it reaches approximately 10-30% in equity funds and 70-90% in fixed income funds at the Target Date as illustrated in the graph below. After the Target Date, and as also illustrated in the graph below, the Portfolio’s asset allocation targets are expected to remain within these approximate ranges. The graph below applies to each Goldman Sachs Target Date Portfolio identified in the Prospectus.



The asset allocation strategy is designed to reduce the volatility of investment returns in the later years while still providing the potential for higher total returns over the target period. Market conditions and the perceived value of securities will change as the investor moves across the glide path. Although the actual allocations may vary, the chart below illustrates the expected strategic asset allocation of the glide path and the tactical allocation ranges of the core asset classes and sub-asset classes.

YEARS TO TARGET DATE	20	15	10	5	0	–5	–10
Strategic Allocations
Equity	65%	60%	55%	38%	20%	20%	20%
US Equity	46%	42%	39%	26%	14%	14%	14%
Non-US Developed Equities	20%	18%	17%	11%	6%	6%	6%
Fixed Income	35%	40%	45%	63%	80%	80%	80%
Tactical Allocation Ranges
Equity	55-75%	50-70%	45-65%	28-48%	10-30%	10-30%	10-30%
US Equity	33-68%	30-63%	27-59%	17-43%	6-27%	6-27%	6-27%
Non-US Equities	6-30%	5-28%	5-26%	3-19%	1-12%	1-12%	1-12%
Fixed Income	25-45%	30-50%	35-55%	53-73%	70-90%	70-90%	70-90%
Sub-Asset Classes and Alternatives
Emerging Markets Equities	0-15%	0-14%	0-13%	0-10%	0-6%	0-6%	0-6%
Real Estate	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%
Commodities	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%
Other Alternative Strategies	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%

Note: Above allocations may not sum to total due to rounding.

On a periodic basis, the Sub-Adviser will evaluate and may revise the Portfolio’s asset allocation, including revising the asset class weightings and adding and/or removing Underlying Funds. There will be times when the perceived value of equity and/or fixed income securities are stretched (or depressed) and the opportunity to proactively protect against (or take advantage of) these opportunities necessitates an ability to deviate from the glide path’s strategic target. In order to attempt to capitalize on these periodic opportunities, the Sub-Adviser established a “tactical allocation range” that allows flexibility to increase or decrease exposure from the glide path’s strategic allocations. As a result, the Portfolio’s equity and fixed income asset allocation targets may range within the bounds of this tactical allocation range as illustrated in the chart above depending on the Sub-Adviser’s views of the appropriate mix of the Portfolio’s asset allocation based on then-current economic, market or other conditions, or factors unique to the Portfolio. Certain sub-asset classes, like real estate, commodities, and other alternative strategies, may be invested in using the tactical allocation range illustrated in the table above. The Sub-Adviser may also use the tactical allocation range to invest in certain other sub-asset classes within fixed income such as: domestic high yield non-investment grade securities (commonly referred to as “junk bonds”), inflation-linked securities, securities issued by foreign corporate and governmental issuers, sovereign and corporate debt securities of issuers in emerging market countries, convertible securities, and preferred stock. The Sub-Adviser will also monitor the Underlying Funds on an ongoing basis and may increase or decrease the Portfolio’s investment in one or more Underlying Funds. The Underlying Fund selections are made based on several considerations, including the Portfolio’s style or asset class exposures, portfolio characteristics, risk profile, and investment process. With regard to investments in Underlying Funds that invest in debt securities, the Sub-Adviser seeks to select portfolios of securities with long-, intermediate- and short-term maturities. Although the Portfolio does not intend to concentrate its investments in a particular industry, the Portfolio may indirectly concentrate in a particular industry or group of industries through its aggregate investment in one or more Underlying Funds. The particular Underlying Funds in which the Portfolio may invest and the Portfolio’s targets and ranges will change from time to time without shareholder approval or notice.

The Sub-Adviser’s strategy is intended to represent a conservative investment strategy. The Sub-Adviser’s expectation is that the Portfolio may participate in market appreciation during bull markets and experience something less than full participation during bear markets compared with other funds holding more speculative and volatile securities. There is no assurance that the Sub-Adviser’s expectations regarding this investment strategy will be realized.

Although the Portfolio expects to pursue its investment objective utilizing its principal investment strategies regardless of market conditions, the Portfolio may invest up to 100% in money market instruments. To the extent the Portfolio engages in this temporary defensive position, the Portfolio’s ability to achieve its investment objective may be diminished.

Management Process

The Investment Adviser and the Portfolio have received an exemptive order from the Securities and Exchange Commission (“SEC”). Under the exemptive order, the Investment Adviser has the ultimate responsibility, subject to oversight by the Portfolio’s Board of Trustees, to oversee the Sub-Adviser and recommend its hiring, termination and replacement. The initial shareholder of the Portfolio approved the Portfolio’s operation in this manner and reliance by the Portfolio on this exemptive order.

Additional Information

The Portfolio’s benchmark index is the S&P Target Date To 2035 Index (the “Index”).

Risk [Heading]

rr_RiskHeading

Principal Risks of the Portfolio

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

Loss of money is a risk of investing in the Portfolio. An investment in the Portfolio is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any government agency. The Portfolio should not be relied upon as a complete investment program. Stated allocations may be subject to change. There can be no assurance that the Portfolio will achieve its investment objective. Investments in the Portfolio involve substantial risks which prospective investors should consider carefully before investing. Investors should also consider, in addition to his or her age or retirement date, other factors, including the investor’s risk tolerance, personal circumstances, and complete financial situation.

Asset Allocation Risk.  The Portfolio’s allocations to various asset classes and to the Underlying Funds may cause the Portfolio to underperform other funds with a similar investment objective.

Expenses.  By investing in the Underlying Funds indirectly through the Portfolio, the investor will incur not only a proportionate share of the expenses of the Underlying Funds held by the Portfolio (including operating costs and investment management fees), but also expenses of the Portfolio.

Inadequate Retirement Income.  An investment in the Portfolio is not guaranteed, and the Portfolio may experience losses, including losses near, at, or after the Target Date. There is no guarantee that the Portfolio will achieve sufficient capital appreciation to provide adequate income at and through retirement. Moreover, there is no guarantee that the Portfolio’s performance will keep pace with or exceed the rate of inflation, which may reduce the value of your investment over time.

Investing in the Underlying Funds.  The investments of the Portfolio may be concentrated in one or more Underlying Funds (including ETFs and other registered investment companies) subject to statutory limitations prescribed by the Investment Company Act of 1940, as amended (the “Investment Company Act”), or exemptive relief thereunder. The Portfolio’s investment performance is directly related to the investment performance of the Underlying Funds it holds. The Portfolio is subject to the risk factors associated with the investments of the Underlying Funds in direct proportion to the amount of assets allocated to each. If the Portfolio has a relative concentration of its portfolio in a single Underlying Fund, it may be more susceptible to adverse developments affecting that Underlying Fund, and may be more susceptible to losses because of these developments.

Investments of the Underlying Funds.  Because the Portfolio invests in the Underlying Funds, the Portfolio’s shareholders will be affected by the investment policies and practices of the Underlying Funds in direct proportion to the amount of assets the Portfolio allocates to those Underlying Funds. A strategy used by the Underlying Funds may fail to produce the intended results.

Large Shareholder Transactions Risk.  The Portfolio may experience adverse effects when certain large shareholders purchase or redeem large amounts of shares of the Portfolio. Such large shareholder redemptions may cause the Portfolio to sell portfolio securities at times when it would not otherwise do so, which may negatively impact the Portfolio’s NAV and liquidity. Similarly, large Portfolio share purchases may adversely affect the Portfolio’s performance to the extent that the Portfolio is delayed in investing new cash and is required to maintain a larger cash position than it ordinarily would. These transactions may also accelerate the realization of taxable income to shareholders if such sales of investments resulted in gains, and may also increase transaction costs. In addition, a large redemption could result in the Portfolio’s current expenses being allocated over a smaller asset base, leading to an increase in the Portfolio’s expense ratio.

Management Risk.  A strategy used by the Sub-Adviser may fail to produce the intended results.

Portfolio Turnover Rate Risk.  A high rate of portfolio turnover (100% or more) involves correspondingly greater expenses which must be borne by the Portfolio and its shareholders, and is also likely to result in short-term capital gains taxable to shareholders.

Underlying ETF Risk.  The Portfolio may invest in Underlying ETFs subject to statutory limitations prescribed by the Investment Company Act, or exemptive relief thereunder. An investment in an Underlying ETF generally presents the same primary risks as an investment in a conventional fund (i.e., one that is not exchange-traded) that has the same investment objectives, strategies and policies. In addition, an ETF may fail to accurately track the market segment or index that underlies its investment objective; however, the market price of the Underlying ETF’s shares may trade at a premium or a discount to their net asset value. The price of an Underlying ETF can fluctuate, and the Portfolio could lose money investing in an Underlying ETF.

Principal Risks of the Underlying Funds

Credit/Default Risk.  An issuer or guarantor of fixed income securities held by an Underlying Fund (which may have low credit ratings) may default on its obligation to pay interest and repay principal or default on any other obligation. Additionally, the credit quality of securities may deteriorate rapidly, which may impair an Underlying Fund’s liquidity and cause significant deterioration in NAV. These risks are more pronounced in connection with an Underlying Fund’s investments in non-investment grade fixed income securities.

Derivatives Risk.  An Underlying Fund’s use of options, forwards, futures, swaps, structured securities and other derivative instruments may result in losses. These instruments, which may pose risks in addition to and greater than those associated with investing directly in securities, currencies or other instruments, may be illiquid or less liquid, volatile, difficult to price and leveraged so that small changes in the value of the underlying instruments may produce disproportionate losses to the Underlying Fund. Certain derivatives are also subject to counterparty risk, which is the risk that the other party in the transaction will not fulfill its contractual obligations. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with investments in more traditional securities and instruments.

Foreign and Emerging Countries Risk.  Foreign securities may be subject to risk of loss because of more or less foreign government regulation, less public information and less economic, political and social stability in the countries in which the Portfolio invests. The imposition of exchange controls, sanctions, confiscations, trade restrictions (including tariffs) and other government restrictions by the United States and other governments, or from problems in share registration, settlement or custody, may also result in losses. Foreign risk also involves the risk of negative foreign currency rate fluctuations, which may cause the value of securities denominated in such foreign currency (or other instruments through which an Underlying Fund has exposure to foreign currencies) to decline in value. Currency exchange rates may fluctuate significantly over short periods of time. These risks may be more pronounced in connection with the Underlying Fund’s investments in securities of issuers located in emerging countries.

Geographic Risk.  If an Underlying Fund focuses its investments in issuers located in a particular country or region, the Underlying Fund may be subjected, to a greater extent than if investments were less focused, to the risks of volatile economic cycles and/or conditions and developments that may be particular to that country or region, such as: adverse securities markets; adverse exchange rates; adverse social, political, regulatory, economic, business, environmental or other developments; or natural disasters.

Interest Rate Risk.  When interest rates increase, fixed income securities or instruments held by an Underlying Fund will generally decline in value. Long-term fixed income securities or instruments will normally have more price volatility because of this risk than short-term fixed income securities or instruments. The risks associated with increasing rates are heightened given that interest rates are near historic lows, but may be expected to increase in the future with unpredictable effects on the markets and an Underlying Fund’s investments. Fluctuations in interest rates may also affect the liquidity of fixed income securities and instruments held by an Underlying Fund.

Leverage Risk.  Borrowing and the use of derivatives may result in leverage and may make an Underlying Fund more volatile. The use of leverage may cause an Underlying Fund to liquidate portfolio positions to satisfy its obligations or to meet asset segregation requirements when it may not be advantageous to do so. The use of leverage by an Underlying Fund can substantially increase the adverse impact to which its investment portfolio may be subject.

Liquidity Risk.  An Underlying Fund may make investments that are illiquid or that may become less liquid in response to market developments or adverse investor perceptions. Illiquid investments may be more difficult to value. Liquidity risk may also refer to the risk that an Underlying Fund will not be able to pay redemption proceeds within the allowable time period because of unusual market conditions, an unusually high volume of redemption requests or other reasons. To meet redemption requests, an Underlying Fund may be forced to sell securities, at an unfavorable time and/or under unfavorable conditions. Liquidity risk may be the result of, among other things, the reduced number and capacity of traditional market participants to make a market in fixed income securities or the lack of an active market. The potential for liquidity risk may be magnified by a rising interest rate environment or other circumstances where investor redemptions from fixed income mutual funds may be higher than normal, potentially causing increased supply in the market due to selling activity.

Market Risk.  The value of the securities in which an Underlying Fund invests may go up or down in response to the prospects of individual companies, particular sectors or governments and/or general economic conditions throughout the world due to increasingly interconnected global economies and financial markets.

Mid-Cap and Small-Cap Risk.  Certain of the Underlying Funds may make investments mid-capitalization and small-capitalization companies involve greater risks than those associated with larger, more established companies. These securities may be subject to more abrupt or erratic price movements and may lack sufficient market liquidity, and these issuers often face greater business risks.

Mortgage-Backed and Other Asset-Backed Securities Risk.  Mortgage-related and other asset-backed securities are subject to certain additional risks, including “extension risk” (i.e., in periods of rising interest rates, issuers may pay principal later than expected) and “prepayment risk” (i.e., in periods of declining interest rates, issuers may pay principal more quickly than expected, causing an Underlying Fund to reinvest proceeds at lower prevailing interest rates). Mortgage-backed securities offered by non-governmental issuers are subject to other risks as well, including failures of private insurers to meet their obligations and unexpectedly high rates of default on the mortgages backing the securities. Other asset-backed securities are subject to risks similar to those associated with mortgage-backed securities, as well as risks associated with the nature and servicing of the assets backing the securities. Asset-backed securities may not have the benefit of a security interest in collateral comparable to that of mortgage assets, resulting in additional credit risk.

Non-Investment Grade Investments Risk.  Non-investment grade fixed income securities and unrated securities of comparable credit quality (commonly known as “junk bonds”) are considered speculative and are subject to the increased risk of an issuer’s inability to meet principal and interest payment obligations. These securities may be subject to greater price volatility due to such factors as specific issuer developments, interest rate sensitivity, negative perceptions of the junk bond markets generally and less liquidity.

Stock Risk.  Stock prices have historically risen and fallen in periodic cycles. U.S. and foreign stock markets have experienced periods of substantial price volatility in the past and may do so again in the future.

U.S. Government Securities Risk.  The U.S. government may not provide financial support to U.S. government agencies, instrumentalities or sponsored enterprises if it is not obligated to do so by law. U.S. Government Securities issued by those agencies, instrumentalities and sponsored enterprises, including those issued by the Federal National Mortgage Association (“Fannie Mae”), Federal Home Loan Mortgage Corporation (“Freddie Mac”) and the Federal Home Loan Banks, are neither issued nor guaranteed by the U.S. Treasury and, therefore, are not backed by the full faith and credit of the United States. The maximum potential liability of the issuers of some U.S. Government Securities held by an Underlying Fund may greatly exceed their current resources, including any legal right to support from the U.S. Treasury. It is possible that issuers of U.S. Government Securities will not have the funds to meet their payment obligations in the future.

Risk Lose Money [Text]

rr_RiskLoseMoney

Loss of money is a risk of investing in the Portfolio.

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Portfolio is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any government agency.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

As the Portfolio has not operated for a full calendar year as of the date of the Prospectus, there is no performance information quoted for the Portfolio. Updated performance information is available at no cost at www.gsamfunds.com/performance or by calling the phone number on the back of the Prospectus.

Performance One Year or Less [Text]

rr_PerformanceOneYearOrLess

As the Portfolio has not operated for a full calendar year as of the date of the Prospectus, there is no performance information quoted for the Portfolio.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

www.gsamfunds.com/performance

Goldman Sachs Target Date 2035 Portfolio | Class A

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

5.50%

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

2.59%

Other Expenses

rr_OtherExpensesOverAssets

2.59%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

3.26%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(2.39%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.87%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 634

3 Years

rr_ExpenseExampleYear03

1,287

5 Years

rr_ExpenseExampleYear05

1,962

10 Years

rr_ExpenseExampleYear10

$ 3,757

Goldman Sachs Target Date 2035 Portfolio | Institutional

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

2.45%

Other Expenses

rr_OtherExpensesOverAssets

2.45%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

2.87%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(2.39%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.48%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 49

3 Years

rr_ExpenseExampleYear03

662

5 Years

rr_ExpenseExampleYear05

1,301

10 Years

rr_ExpenseExampleYear10

$ 3,022

Goldman Sachs Target Date 2035 Portfolio | Service

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

0.25%

All Other Expenses

rr_Component2OtherExpensesOverAssets

2.45%

Other Expenses

rr_OtherExpensesOverAssets

2.70%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

3.37%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(2.39%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.98%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 100

3 Years

rr_ExpenseExampleYear03

813

5 Years

rr_ExpenseExampleYear05

1,549

10 Years

rr_ExpenseExampleYear10

$ 3,496

Goldman Sachs Target Date 2035 Portfolio | Investor

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

2.59%

Other Expenses

rr_OtherExpensesOverAssets

2.59%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

3.01%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(2.39%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.62%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 63

3 Years

rr_ExpenseExampleYear03

704

5 Years

rr_ExpenseExampleYear05

1,371

10 Years

rr_ExpenseExampleYear10

$ 3,157

Goldman Sachs Target Date 2035 Portfolio | Class R

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.50%

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

2.59%

Other Expenses

rr_OtherExpensesOverAssets

2.59%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

3.51%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(2.39%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

1.12%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 114

3 Years

rr_ExpenseExampleYear03

854

5 Years

rr_ExpenseExampleYear05

1,617

10 Years

rr_ExpenseExampleYear10

$ 3,624

Goldman Sachs Target Date 2035 Portfolio | Class R6

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

2.44%

Other Expenses

rr_OtherExpensesOverAssets

2.44%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

2.86%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(2.39%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.47%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 48

3 Years

rr_ExpenseExampleYear03

659

5 Years

rr_ExpenseExampleYear05

1,296

10 Years

rr_ExpenseExampleYear10

$ 3,012

[1] The Portfolio’s “Other Expenses” have been restated to reflect expenses expected to be incurred during the current fiscal year.

[2] The Total Annual Portfolio Operating Expenses do not correlate to the ratios of the net and total expenses to average net assets provided in the Financial Highlights, which reflect the operating expenses of the Portfolio and do not include Acquired (Underlying) Fund Fees and Expenses.

[3] The Investment Adviser has agreed to reduce or limit "Other Expenses" (excluding acquired (underlying) fund fees and expenses, transfer agency fees and expenses, service fees, shareholder administration fees, taxes, interest, brokerage fees, expenses of shareholder meetings, litigation and indemnification, and extraordinary expenses) to 0.014% of the Portfolio's average daily net assets. Additionally, Goldman Sachs & Co. LLC ("Goldman Sachs"), the Portfolio's transfer agent, has agreed to waive a portion of its transfer agency fee (a component of "Other Expenses") equal to 0.01% as an annual percentage rate of the average daily net assets attributable to Class R6 Shares of the Portfolio. These arrangements will remain in effect through at least December 29, 2018, and prior to such date, the Investment Adviser and Goldman Sachs (as applicable) may not terminate the arrangements without the approval of the Board of Trustees.

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Goldman Sachs Target Date 2040 Portfolio

Goldman Sachs Target Date 2040 Portfolio—Summary

Investment Objective

The Goldman Sachs Target Date 2040 Portfolio (the “Portfolio”) seeks to provide capital appreciation and current income consistent with its current asset allocation.

Fees and Expenses of the Portfolio

This table describes the fees and expenses that you may pay if you buy and hold shares of the Portfolio. You may qualify for sales charge discounts on purchases of Class A Shares if you invest at least $50,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 82 and in Appendix C—Additional Information About Sales Charge Variations, Waivers and Discounts on page 126 of the Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-133 of the Portfolio’s Statement of Additional Information (“SAI”).

Shareholder Fees
(fees paid directly from your investment)

Shareholder Fees - Goldman Sachs Target Date 2040 Portfolio	Class A	Institutional	Service	Investor	Class R	Class R6
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.50%	none	none	none	none	none

Annual Portfolio Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Annual Portfolio Operating Expenses - Goldman Sachs Target Date 2040 Portfolio		Class A	Institutional	Service	Investor	Class R	Class R6
Management Fees		0.25%	0.25%	0.25%	0.25%	0.25%	0.25%
Distribution and/or Service (12b-1) Fees		0.25%	none	0.25%	none	0.50%	none
Other Expenses	[1]	0.77%	0.63%	0.88%	0.77%	0.77%	0.62%
Shareholder Administration Fees		none	none	0.25%	none	none	none
All Other Expenses		0.77%	0.63%	0.63%	0.77%	0.77%	0.62%
Acquired (Underlying) Fund Fees and Expenses		0.18%	0.18%	0.18%	0.18%	0.18%	0.18%
Total Annual Portfolio Operating Expenses	[2]	1.45%	1.06%	1.56%	1.20%	1.70%	1.05%
Fee Waiver and Expense Limitation	[3]	(0.57%)	(0.57%)	(0.57%)	(0.57%)	(0.57%)	(0.57%)
Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation	[2]	0.88%	0.49%	0.99%	0.63%	1.13%	0.48%

Expense Example

This Example is intended to help you compare the cost of investing in the Portfolio with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in Class A, Institutional, Service, Investor, Class R and/or Class R6 Shares of the Portfolio for the time periods indicated and then redeem all of your Class A, Institutional, Service, Investor, Class R and/or Class R6 Shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Portfolio’s operating expenses remain the same (except that the Example incorporates the fee waiver and expense limitation arrangements for only the first year). Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example - Goldman Sachs Target Date 2040 Portfolio - USD ($)	1 Year	3 Years	5 Years	10 Years
Class A Shares	635	930	1,247	2,143
Institutional Shares	50	280	529	1,243
Service Shares	101	437	796	1,808
Investor Shares	64	324	605	1,404
Class R Shares	115	480	869	1,961
Class R6 Shares	49	277	524	1,231

Portfolio Turnover

The Portfolio may pay transaction costs when it buys and sells securities or instruments (i.e., “turns over” its portfolio). A high rate of portfolio turnover may result in increased transaction costs, including brokerage commissions, which must be borne by the Portfolio and its shareholders, and is also likely to result in higher short-term capital gains for taxable shareholders. These costs are not reflected in annual fund operating expenses or in the expense example above, but are reflected in the Portfolio’s performance. The Portfolio's portfolio turnover rate for the fiscal period ended August 31, 2017 was 142% of the average value of its portfolio.

Principal Strategy

The Portfolio employs an asset allocation strategy designed for investors who plan to retire and to begin gradually withdrawing their investment from the Portfolio beginning in approximately 2040 (the "Target Date"). The Portfolio is managed for an investor planning to retire at the age of 65 on or around the Target Date.

The Portfolio generally seeks to achieve its investment objective by investing in shares of exchange-traded funds ("Underlying ETFs") and other registered investment companies (collectively, the "Underlying Funds"), according to an asset allocation strategy, developed by Madison Asset Management, LLC (the "Sub-Adviser") who is unaffiliated with the Investment Adviser, for investors planning to retire in or within a few years of 2040. Over time, the Portfolio's asset allocation will become more conservative until it reaches approximately 10-30% in equity funds and 70-90% in fixed income funds at the Target Date as illustrated in the graph below. After the Target Date, and as also illustrated in the graph below, the Portfolio's asset allocation targets are expected to remain within these approximate ranges. The graph below applies to each Goldman Sachs Target Date Portfolio identified in the Prospectus.



The asset allocation strategy is designed to reduce the volatility of investment returns in the later years while still providing the potential for higher total returns over the target period. Market conditions and the perceived value of securities will change as the investor moves across the glide path. Although the actual allocations may vary, the chart below illustrates the expected strategic asset allocation of the glide path and the tactical allocation ranges of the core asset classes and sub-asset classes.

YEARS TO TARGET DATE	25	20	15	10	5	0	–5	–10
Strategic Allocations
Equity	70%	65%	60%	55%	38%	20%	20%	20%
US Equity	49%	46%	42%	39%	26%	14%	14%	14%
Non-US Developed Equities	21%	20%	18%	17%	11%	6%	6%	6%
Fixed Income	30%	35%	40%	45%	63%	80%	80%	80%
Tactical Allocation Ranges
Equity	60-80%	55-75%	50-70%	45-65%	28-48%	10-30%	10-30%	10-30%
US Equity	36-72%	33-68%	30-63%	27-59%	17-43%	6-27%	6-27%	6-27%
Non-US Equities	6-32%	6-30%	5-28%	5-26%	3-19%	1-12%	1-12%	1-12%
Fixed Income	20-40%	25-45%	30-50%	35-55%	53-73%	70-90%	70-90%	70-90%
Sub-Asset Classes and Alternatives
Emerging Markets Equities	0-16%	0-15%	0-14%	0-13%	0-10%	0-6%	0-6%	0-6%
Real Estate	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%
Commodities	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%
Other Alternative Strategies	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%

Note: Above allocations may not sum to total due to rounding.

On a periodic basis, the Sub-Adviser will evaluate and may revise the Portfolio's asset allocation, including revising the asset class weightings and adding and/or removing Underlying Funds. There will be times when the perceived value of equity and/or fixed income securities are stretched (or depressed) and the opportunity to proactively protect against (or take advantage of) these opportunities necessitates an ability to deviate from the glide path's strategic target. In order to attempt to capitalize on these periodic opportunities, the Sub-Adviser established a "tactical allocation range" that allows flexibility to increase or decrease exposure from the glide path's strategic allocations. As a result, the Portfolio's equity and fixed income asset allocation targets may range within the bounds of this tactical allocation range as illustrated in the chart above depending on the Sub-Adviser's views of the appropriate mix of the Portfolio's asset allocation based on then-current economic, market or other conditions, or factors unique to the Portfolio. Certain sub-asset classes, like real estate, commodities, and other alternative strategies, may be invested in using the tactical allocation range illustrated in the table above. The Sub-Adviser may also use the tactical allocation range to invest in certain other sub-asset classes within fixed income such as: domestic high yield non-investment grade securities (commonly referred to as "junk bonds"), inflation-linked securities, securities issued by foreign corporate and governmental issuers, sovereign and corporate debt securities of issuers in emerging market countries, convertible securities, and preferred stock. The Sub-Adviser will also monitor the Underlying Funds on an ongoing basis and may increase or decrease the Portfolio's investment in one or more Underlying Funds. The Underlying Fund selections are made based on several considerations, including the Portfolio's style or asset class exposures, portfolio characteristics, risk profile, and investment process. With regard to investments in Underlying Funds that invest in debt securities, the Sub-Adviser seeks to select portfolios of securities with long-, intermediate- and short-term maturities. Although the Portfolio does not intend to concentrate its investments in a particular industry, the Portfolio may indirectly concentrate in a particular industry or group of industries through its aggregate investment in one or more Underlying Funds. The particular Underlying Funds in which the Portfolio may invest and the Portfolio's targets and ranges will change from time to time without shareholder approval or notice.

The Sub-Adviser's strategy is intended to represent a conservative investment strategy. The Sub-Adviser's expectation is that the Portfolio may participate in market appreciation during bull markets and experience something less than full participation during bear markets compared with other funds holding more speculative and volatile securities. There is no assurance that the Sub-Adviser's expectations regarding this investment strategy will be realized.

Although the Portfolio expects to pursue its investment objective utilizing its principal investment strategies regardless of market conditions, the Portfolio may invest up to 100% in money market instruments. To the extent the Portfolio engages in this temporary defensive position, the Portfolio's ability to achieve its investment objective may be diminished.

Management Process

The Investment Adviser and the Portfolio have received an exemptive order from the Securities and Exchange Commission ("SEC"). Under the exemptive order, the Investment Adviser has the ultimate responsibility, subject to oversight by the Portfolio's Board of Trustees, to oversee the Sub-Adviser and recommend its hiring, termination and replacement. The initial shareholder of the Portfolio approved the Portfolio's operation in this manner and reliance by the Portfolio on this exemptive order.

Additional Information

The Portfolio's benchmark index is the S&P Target Date To 2040 Index (the "Index").

Principal Risks of the Portfolio

Loss of money is a risk of investing in the Portfolio. An investment in the Portfolio is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation ("FDIC") or any government agency. The Portfolio should not be relied upon as a complete investment program. Stated allocations may be subject to change. There can be no assurance that the Portfolio will achieve its investment objective. Investments in the Portfolio involve substantial risks which prospective investors should consider carefully before investing. Investors should also consider, in addition to his or her age or retirement date, other factors, including the investor's risk tolerance, personal circumstances, and complete financial situation.

Asset Allocation Risk.  The Portfolio's allocations to various asset classes and to the Underlying Funds may cause the Portfolio to underperform other funds with a similar investment objective.

Expenses.  By investing in the Underlying Funds indirectly through the Portfolio, the investor will incur not only a proportionate share of the expenses of the Underlying Funds held by the Portfolio (including operating costs and investment management fees), but also expenses of the Portfolio.

Inadequate Retirement Income.  An investment in the Portfolio is not guaranteed, and the Portfolio may experience losses, including losses near, at, or after the Target Date. There is no guarantee that the Portfolio will achieve sufficient capital appreciation to provide adequate income at and through retirement. Moreover, there is no guarantee that the Portfolio's performance will keep pace with or exceed the rate of inflation, which may reduce the value of your investment over time.

Investing in the Underlying Funds.  The investments of the Portfolio may be concentrated in one or more Underlying Funds (including ETFs and other registered investment companies) subject to statutory limitations prescribed by the Investment Company Act of 1940, as amended (the "Investment Company Act"), or exemptive relief thereunder. The Portfolio's investment performance is directly related to the investment performance of the Underlying Funds it holds. The Portfolio is subject to the risk factors associated with the investments of the Underlying Funds in direct proportion to the amount of assets allocated to each. If the Portfolio has a relative concentration of its portfolio in a single Underlying Fund, it may be more susceptible to adverse developments affecting that Underlying Fund, and may be more susceptible to losses because of these developments.

Investments of the Underlying Funds.  Because the Portfolio invests in the Underlying Funds, the Portfolio's shareholders will be affected by the investment policies and practices of the Underlying Funds in direct proportion to the amount of assets the Portfolio allocates to those Underlying Funds. A strategy used by the Underlying Funds may fail to produce the intended results.

Large Shareholder Transactions Risk.  The Portfolio may experience adverse effects when certain large shareholders purchase or redeem large amounts of shares of the Portfolio. Such large shareholder redemptions may cause the Portfolio to sell portfolio securities at times when it would not otherwise do so, which may negatively impact the Portfolio's NAV and liquidity. Similarly, large Portfolio share purchases may adversely affect the Portfolio's performance to the extent that the Portfolio is delayed in investing new cash and is required to maintain a larger cash position than it ordinarily would. These transactions may also accelerate the realization of taxable income to shareholders if such sales of investments resulted in gains, and may also increase transaction costs. In addition, a large redemption could result in the Portfolio's current expenses being allocated over a smaller asset base, leading to an increase in the Portfolio's expense ratio.

Management Risk.  A strategy used by the Sub-Adviser may fail to produce the intended results.

Portfolio Turnover Rate Risk.  A high rate of portfolio turnover (100% or more) involves correspondingly greater expenses which must be borne by the Portfolio and its shareholders, and is also likely to result in short-term capital gains taxable to shareholders.

Underlying ETF Risk.  The Portfolio may invest in Underlying ETFs subject to statutory limitations prescribed by the Investment Company Act, or exemptive relief thereunder. An investment in an Underlying ETF generally presents the same primary risks as an investment in a conventional fund (i.e., one that is not exchange-traded) that has the same investment objectives, strategies and policies. In addition, an ETF may fail to accurately track the market segment or index that underlies its investment objective; however, the market price of the Underlying ETF's shares may trade at a premium or a discount to their net asset value. The price of an Underlying ETF can fluctuate, and the Portfolio could lose money investing in an Underlying ETF.

Principal Risks of the Underlying Funds

Credit/Default Risk.  An issuer or guarantor of fixed income securities held by an Underlying Fund (which may have low credit ratings) may default on its obligation to pay interest and repay principal or default on any other obligation. Additionally, the credit quality of securities may deteriorate rapidly, which may impair an Underlying Fund's liquidity and cause significant deterioration in NAV. These risks are more pronounced in connection with an Underlying Fund's investments in non-investment grade fixed income securities.

Derivatives Risk.  An Underlying Fund’s use of options, forwards, futures, swaps, structured securities and other derivative instruments may result in losses. These instruments, which may pose risks in addition to and greater than those associated with investing directly in securities, currencies or other instruments, may be illiquid or less liquid, volatile, difficult to price and leveraged so that small changes in the value of the underlying instruments may produce disproportionate losses to the Underlying Fund. Certain derivatives are also subject to counterparty risk, which is the risk that the other party in the transaction will not fulfill its contractual obligations. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with investments in more traditional securities and instruments.

Foreign and Emerging Countries Risk.  Foreign securities may be subject to risk of loss because of more or less foreign government regulation, less public information and less economic, political and social stability in the countries in which the Portfolio invests. The imposition of exchange controls, sanctions, confiscations, trade restrictions (including tariffs) and other government restrictions by the United States and other governments, or from problems in share registration, settlement or custody, may also result in losses. Foreign risk also involves the risk of negative foreign currency rate fluctuations, which may cause the value of securities denominated in such foreign currency (or other instruments through which an Underlying Fund has exposure to foreign currencies) to decline in value. Currency exchange rates may fluctuate significantly over short periods of time. These risks may be more pronounced in connection with the Underlying Fund's investments in securities of issuers located in emerging countries.

Geographic Risk.  If an Underlying Fund focuses its investments in issuers located in a particular country or region, the Underlying Fund may be subjected, to a greater extent than if investments were less focused, to the risks of volatile economic cycles and/or conditions and developments that may be particular to that country or region, such as: adverse securities markets; adverse exchange rates; adverse social, political, regulatory, economic, business, environmental or other developments; or natural disasters.

Interest Rate Risk.  When interest rates increase, fixed income securities or instruments held by an Underlying Fund will generally decline in value. Long-term fixed income securities or instruments will normally have more price volatility because of this risk than short-term fixed income securities or instruments. The risks associated with increasing rates are heightened given that interest rates are near historic lows, but may be expected to increase in the future with unpredictable effects on the markets and an Underlying Fund's investments. Fluctuations in interest rates may also affect the liquidity of fixed income securities and instruments held by an Underlying Fund.

Leverage Risk.  Borrowing and the use of derivatives may result in leverage and may make an Underlying Fund more volatile. The use of leverage may cause an Underlying Fund to liquidate portfolio positions to satisfy its obligations or to meet asset segregation requirements when it may not be advantageous to do so. The use of leverage by an Underlying Fund can substantially increase the adverse impact to which its investment portfolio may be subject.

Liquidity Risk.  An Underlying Fund may make investments that are illiquid or that may become less liquid in response to market developments or adverse investor perceptions. Illiquid investments may be more difficult to value. Liquidity risk may also refer to the risk that an Underlying Fund will not be able to pay redemption proceeds within the allowable time period because of unusual market conditions, an unusually high volume of redemption requests or other reasons. To meet redemption requests, an Underlying Fund may be forced to sell securities, at an unfavorable time and/or under unfavorable conditions. Liquidity risk may be the result of, among other things, the reduced number and capacity of traditional market participants to make a market in fixed income securities or the lack of an active market. The potential for liquidity risk may be magnified by a rising interest rate environment or other circumstances where investor redemptions from fixed income mutual funds may be higher than normal, potentially causing increased supply in the market due to selling activity.

Market Risk.  The value of the securities in which an Underlying Fund invests may go up or down in response to the prospects of individual companies, particular sectors or governments and/or general economic conditions throughout the world due to increasingly interconnected global economies and financial markets.

Mid-Cap and Small-Cap Risk.  Certain of the Underlying Funds may make investments mid-capitalization and small-capitalization companies involve greater risks than those associated with larger, more established companies. These securities may be subject to more abrupt or erratic price movements and may lack sufficient market liquidity, and these issuers often face greater business risks.

Mortgage-Backed and Other Asset-Backed Securities Risk.  Mortgage-related and other asset-backed securities are subject to certain additional risks, including "extension risk" (i.e., in periods of rising interest rates, issuers may pay principal later than expected) and "prepayment risk" (i.e., in periods of declining interest rates, issuers may pay principal more quickly than expected, causing an Underlying Fund to reinvest proceeds at lower prevailing interest rates). Mortgage-backed securities offered by non-governmental issuers are subject to other risks as well, including failures of private insurers to meet their obligations and unexpectedly high rates of default on the mortgages backing the securities. Other asset-backed securities are subject to risks similar to those associated with mortgage-backed securities, as well as risks associated with the nature and servicing of the assets backing the securities. Asset-backed securities may not have the benefit of a security interest in collateral comparable to that of mortgage assets, resulting in additional credit risk.

Non-Investment Grade Investments Risk.  Non-investment grade fixed income securities and unrated securities of comparable credit quality (commonly known as "junk bonds") are considered speculative and are subject to the increased risk of an issuer's inability to meet principal and interest payment obligations. These securities may be subject to greater price volatility due to such factors as specific issuer developments, interest rate sensitivity, negative perceptions of the junk bond markets generally and less liquidity.

Stock Risk.  Stock prices have historically risen and fallen in periodic cycles. U.S. and foreign stock markets have experienced periods of substantial price volatility in the past and may do so again in the future.

U.S. Government Securities Risk.  The U.S. government may not provide financial support to U.S. government agencies, instrumentalities or sponsored enterprises if it is not obligated to do so by law. U.S. Government Securities issued by those agencies, instrumentalities and sponsored enterprises, including those issued by the Federal National Mortgage Association ("Fannie Mae"), Federal Home Loan Mortgage Corporation ("Freddie Mac") and the Federal Home Loan Banks, are neither issued nor guaranteed by the U.S. Treasury and, therefore, are not backed by the full faith and credit of the United States. The maximum potential liability of the issuers of some U.S. Government Securities held by an Underlying Fund may greatly exceed their current resources, including any legal right to support from the U.S. Treasury. It is possible that issuers of U.S. Government Securities will not have the funds to meet their payment obligations in the future.

Performance

Effective August 22, 2016, the Madison Target Retirement 2040 Fund, a series of Madison Funds (the “Predecessor Fund”), was reorganized into the Portfolio. As accounting successor to the Predecessor Fund, the Portfolio has assumed the Predecessor Fund’s historical performance. Therefore, the performance information shown below for periods prior to August 22, 2016 is that of the Predecessor Fund. The returns presented for the Portfolio for periods prior to August 29, 2014 reflect the performance of the Madison Target Retirement 2040 Fund’s Class I Shares, a series of Ultra Series Fund (the “Ultra Predecessor Fund”). As of August 29, 2014, the inception date of the Predecessor Fund, the Ultra Predecessor Fund exchanged in kind substantially all of its portfolio holdings for Class R6 shares of the Predecessor Fund. As a result, the Predecessor Fund assumed the performance of the Ultra Predecessor Fund.

The bar chart and table below provide an indication of the risks of investing in the Portfolio by showing: (a) changes in the performance of the Portfolio’s Class R6 Shares from year to year; and (b) how the average annual total returns of the Portfolio’s Class R6 Shares compare to those of a broad-based securities market index. The Portfolio has different fees and expenses from those of the Predecessor Fund and would, therefore, have had different performance results. Past performance of the Portfolio, before and after taxes, is not necessarily an indication of how the Portfolio will perform in the future. Performance information for the Portfolio is available at no cost at www.gsamfunds.com/performance or by calling the appropriate phone number on the back cover of the Prospectus.

Because the Predecessor Fund did not offer Class A, Institutional, Service, Investor and Class R Shares, and the Class A, Institutional, Service, Investor and Class R Shares of the Portfolio have not operated for a full calendar year as of the date of the Prospectus, no performance information is shown for those share classes.

Performance reflects applicable fee waivers and/or expense limitations in effect during the periods shown.

TOTAL RETURN CALENDAR YEAR (CLASS R6)

The total return for Class R6 Shares for the 9-month period ended September 30, 2017 was 11.05%.

Best Quarter
Q2 ‘09          +18.13%

Worst Quarter
Q4 ‘08          –23.55%

AVERAGE ANNUAL TOTAL RETURNS

For the period ended December 31, 2016

Average Annual Total Returns - Goldman Sachs Target Date 2040 Portfolio	1 Year	5 Years	Since Inception	Inception Date
Class R6	8.45%	9.15%	2.68%	Oct. 01, 2007
Class R6 | Returns After Taxes on Distributions	6.43%	8.74%	2.47%	Oct. 01, 2007
Class R6 | Returns After Taxes on Distributions and Sale of Portfolio Shares	5.80%	7.17%	2.05%	Oct. 01, 2007
S&P Target Date To 2040 Index (reflects no deduction for sales charges, account fees, expenses or taxes)	8.75%	9.09%	3.64%

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. In addition, the after-tax returns shown are not relevant to investors who hold Portfolio shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts.

[1] The Portfolio’s “Other Expenses” have been restated to reflect expenses expected to be incurred during the current fiscal year.

[2] The Total Annual Portfolio Operating Expenses do not correlate to the ratios of the net and total expenses to average net assets provided in the Financial Highlights, which reflect the operating expenses of the Portfolio and do not include Acquired (Underlying) Fund Fees and Expenses.

[3] The Investment Adviser has agreed to reduce or limit “Other Expenses” (excluding acquired (underlying) fund fees and expenses, transfer agency fees and expenses, service fees, shareholder administration fees, taxes, interest, brokerage fees, expenses of shareholder meetings, litigation and indemnification, and extraordinary expenses) to 0.024% of the Portfolio’s average daily net assets. Additionally, Goldman Sachs & Co. LLC (“Goldman Sachs”), the Portfolio’s transfer agent, has agreed to waive a portion of its transfer agency fee (a component of “Other Expenses”) equal to 0.01% as an annual percentage rate of the average daily net assets attributable to Class R6 Shares of the Portfolio. These arrangements will remain in effect through at least December 29, 2018, and prior to such date, the Investment Adviser and Goldman Sachs (as applicable) may not terminate the arrangements without the approval of the Board of Trustees.

XML

Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Registrant Name

dei_EntityRegistrantName

Goldman Sachs Trust II

Prospectus Date

rr_ProspectusDate

May 21, 2018

Goldman Sachs Target Date 2040 Portfolio

Risk/Return:

rr_RiskReturnAbstract

Risk/Return [Heading]

rr_RiskReturnHeading

Goldman Sachs Target Date 2040 Portfolio—Summary

Objective [Heading]

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Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Goldman Sachs Target Date 2040 Portfolio (the “Portfolio”) seeks to provide capital appreciation and current income consistent with its current asset allocation.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses of the Portfolio

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 Portfolio. You may qualify for sales charge discounts on purchases of Class A Shares if you invest at least $50,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 82 and in Appendix C—Additional Information About Sales Charge Variations, Waivers and Discounts on page 126 of the Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-133 of the Portfolio’s Statement of Additional Information (“SAI”).

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees
(fees paid directly from your investment)

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Portfolio Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

December 29, 2018

Portfolio Turnover [Heading]

rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block]

rr_PortfolioTurnoverTextBlock

The Portfolio may pay transaction costs when it buys and sells securities or instruments (i.e., “turns over” its portfolio). A high rate of portfolio turnover may result in increased transaction costs, including brokerage commissions, which must be borne by the Portfolio and its shareholders, and is also likely to result in higher short-term capital gains for taxable shareholders. These costs are not reflected in annual fund operating expenses or in the expense example above, but are reflected in the Portfolio’s performance. The Portfolio's portfolio turnover rate for the fiscal period ended August 31, 2017 was 142% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

142.00%

Expense Breakpoint Discounts [Text]

rr_ExpenseBreakpointDiscounts

You may qualify for sales charge discounts on purchases of Class A Shares if you invest at least $50,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 82 and in Appendix C—Additional Information About Sales Charge Variations, Waivers and Discounts on page 126 of the Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-133 of the Portfolio’s Statement of Additional Information (“SAI”).

Expense Breakpoint, Minimum Investment Required [Amount]

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

$ 50,000

Expenses Restated to Reflect Current [Text]

rr_ExpensesRestatedToReflectCurrent

The Portfolio’s “Other Expenses” have been restated to reflect expenses expected to be incurred during the current fiscal year.

Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text]

rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees

The Total Annual Portfolio Operating Expenses do not correlate to the ratios of the net and total expenses to average net assets provided in the Financial Highlights, which reflect the operating expenses of the Portfolio and do not include Acquired (Underlying) Fund Fees and Expenses.

Expense Example [Heading]

rr_ExpenseExampleHeading

Expense Example

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This Example is intended to help you compare the cost of investing in the Portfolio with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in Class A, Institutional, Service, Investor, Class R and/or Class R6 Shares of the Portfolio for the time periods indicated and then redeem all of your Class A, Institutional, Service, Investor, Class R and/or Class R6 Shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Portfolio’s operating expenses remain the same (except that the Example incorporates the fee waiver and expense limitation arrangements for only the first year). Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Strategy [Heading]

rr_StrategyHeading

Principal Strategy

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

The Portfolio employs an asset allocation strategy designed for investors who plan to retire and to begin gradually withdrawing their investment from the Portfolio beginning in approximately 2040 (the "Target Date"). The Portfolio is managed for an investor planning to retire at the age of 65 on or around the Target Date.

The Portfolio generally seeks to achieve its investment objective by investing in shares of exchange-traded funds ("Underlying ETFs") and other registered investment companies (collectively, the "Underlying Funds"), according to an asset allocation strategy, developed by Madison Asset Management, LLC (the "Sub-Adviser") who is unaffiliated with the Investment Adviser, for investors planning to retire in or within a few years of 2040. Over time, the Portfolio's asset allocation will become more conservative until it reaches approximately 10-30% in equity funds and 70-90% in fixed income funds at the Target Date as illustrated in the graph below. After the Target Date, and as also illustrated in the graph below, the Portfolio's asset allocation targets are expected to remain within these approximate ranges. The graph below applies to each Goldman Sachs Target Date Portfolio identified in the Prospectus.



The asset allocation strategy is designed to reduce the volatility of investment returns in the later years while still providing the potential for higher total returns over the target period. Market conditions and the perceived value of securities will change as the investor moves across the glide path. Although the actual allocations may vary, the chart below illustrates the expected strategic asset allocation of the glide path and the tactical allocation ranges of the core asset classes and sub-asset classes.

YEARS TO TARGET DATE	25	20	15	10	5	0	–5	–10
Strategic Allocations
Equity	70%	65%	60%	55%	38%	20%	20%	20%
US Equity	49%	46%	42%	39%	26%	14%	14%	14%
Non-US Developed Equities	21%	20%	18%	17%	11%	6%	6%	6%
Fixed Income	30%	35%	40%	45%	63%	80%	80%	80%
Tactical Allocation Ranges
Equity	60-80%	55-75%	50-70%	45-65%	28-48%	10-30%	10-30%	10-30%
US Equity	36-72%	33-68%	30-63%	27-59%	17-43%	6-27%	6-27%	6-27%
Non-US Equities	6-32%	6-30%	5-28%	5-26%	3-19%	1-12%	1-12%	1-12%
Fixed Income	20-40%	25-45%	30-50%	35-55%	53-73%	70-90%	70-90%	70-90%
Sub-Asset Classes and Alternatives
Emerging Markets Equities	0-16%	0-15%	0-14%	0-13%	0-10%	0-6%	0-6%	0-6%
Real Estate	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%
Commodities	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%
Other Alternative Strategies	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%

Note: Above allocations may not sum to total due to rounding.

On a periodic basis, the Sub-Adviser will evaluate and may revise the Portfolio's asset allocation, including revising the asset class weightings and adding and/or removing Underlying Funds. There will be times when the perceived value of equity and/or fixed income securities are stretched (or depressed) and the opportunity to proactively protect against (or take advantage of) these opportunities necessitates an ability to deviate from the glide path's strategic target. In order to attempt to capitalize on these periodic opportunities, the Sub-Adviser established a "tactical allocation range" that allows flexibility to increase or decrease exposure from the glide path's strategic allocations. As a result, the Portfolio's equity and fixed income asset allocation targets may range within the bounds of this tactical allocation range as illustrated in the chart above depending on the Sub-Adviser's views of the appropriate mix of the Portfolio's asset allocation based on then-current economic, market or other conditions, or factors unique to the Portfolio. Certain sub-asset classes, like real estate, commodities, and other alternative strategies, may be invested in using the tactical allocation range illustrated in the table above. The Sub-Adviser may also use the tactical allocation range to invest in certain other sub-asset classes within fixed income such as: domestic high yield non-investment grade securities (commonly referred to as "junk bonds"), inflation-linked securities, securities issued by foreign corporate and governmental issuers, sovereign and corporate debt securities of issuers in emerging market countries, convertible securities, and preferred stock. The Sub-Adviser will also monitor the Underlying Funds on an ongoing basis and may increase or decrease the Portfolio's investment in one or more Underlying Funds. The Underlying Fund selections are made based on several considerations, including the Portfolio's style or asset class exposures, portfolio characteristics, risk profile, and investment process. With regard to investments in Underlying Funds that invest in debt securities, the Sub-Adviser seeks to select portfolios of securities with long-, intermediate- and short-term maturities. Although the Portfolio does not intend to concentrate its investments in a particular industry, the Portfolio may indirectly concentrate in a particular industry or group of industries through its aggregate investment in one or more Underlying Funds. The particular Underlying Funds in which the Portfolio may invest and the Portfolio's targets and ranges will change from time to time without shareholder approval or notice.

The Sub-Adviser's strategy is intended to represent a conservative investment strategy. The Sub-Adviser's expectation is that the Portfolio may participate in market appreciation during bull markets and experience something less than full participation during bear markets compared with other funds holding more speculative and volatile securities. There is no assurance that the Sub-Adviser's expectations regarding this investment strategy will be realized.

Although the Portfolio expects to pursue its investment objective utilizing its principal investment strategies regardless of market conditions, the Portfolio may invest up to 100% in money market instruments. To the extent the Portfolio engages in this temporary defensive position, the Portfolio's ability to achieve its investment objective may be diminished.

Management Process

The Investment Adviser and the Portfolio have received an exemptive order from the Securities and Exchange Commission ("SEC"). Under the exemptive order, the Investment Adviser has the ultimate responsibility, subject to oversight by the Portfolio's Board of Trustees, to oversee the Sub-Adviser and recommend its hiring, termination and replacement. The initial shareholder of the Portfolio approved the Portfolio's operation in this manner and reliance by the Portfolio on this exemptive order.

Additional Information

The Portfolio's benchmark index is the S&P Target Date To 2040 Index (the "Index").

Risk [Heading]

rr_RiskHeading

Principal Risks of the Portfolio

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

Loss of money is a risk of investing in the Portfolio. An investment in the Portfolio is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation ("FDIC") or any government agency. The Portfolio should not be relied upon as a complete investment program. Stated allocations may be subject to change. There can be no assurance that the Portfolio will achieve its investment objective. Investments in the Portfolio involve substantial risks which prospective investors should consider carefully before investing. Investors should also consider, in addition to his or her age or retirement date, other factors, including the investor's risk tolerance, personal circumstances, and complete financial situation.

Asset Allocation Risk.  The Portfolio's allocations to various asset classes and to the Underlying Funds may cause the Portfolio to underperform other funds with a similar investment objective.

Expenses.  By investing in the Underlying Funds indirectly through the Portfolio, the investor will incur not only a proportionate share of the expenses of the Underlying Funds held by the Portfolio (including operating costs and investment management fees), but also expenses of the Portfolio.

Inadequate Retirement Income.  An investment in the Portfolio is not guaranteed, and the Portfolio may experience losses, including losses near, at, or after the Target Date. There is no guarantee that the Portfolio will achieve sufficient capital appreciation to provide adequate income at and through retirement. Moreover, there is no guarantee that the Portfolio's performance will keep pace with or exceed the rate of inflation, which may reduce the value of your investment over time.

Investing in the Underlying Funds.  The investments of the Portfolio may be concentrated in one or more Underlying Funds (including ETFs and other registered investment companies) subject to statutory limitations prescribed by the Investment Company Act of 1940, as amended (the "Investment Company Act"), or exemptive relief thereunder. The Portfolio's investment performance is directly related to the investment performance of the Underlying Funds it holds. The Portfolio is subject to the risk factors associated with the investments of the Underlying Funds in direct proportion to the amount of assets allocated to each. If the Portfolio has a relative concentration of its portfolio in a single Underlying Fund, it may be more susceptible to adverse developments affecting that Underlying Fund, and may be more susceptible to losses because of these developments.

Investments of the Underlying Funds.  Because the Portfolio invests in the Underlying Funds, the Portfolio's shareholders will be affected by the investment policies and practices of the Underlying Funds in direct proportion to the amount of assets the Portfolio allocates to those Underlying Funds. A strategy used by the Underlying Funds may fail to produce the intended results.

Large Shareholder Transactions Risk.  The Portfolio may experience adverse effects when certain large shareholders purchase or redeem large amounts of shares of the Portfolio. Such large shareholder redemptions may cause the Portfolio to sell portfolio securities at times when it would not otherwise do so, which may negatively impact the Portfolio's NAV and liquidity. Similarly, large Portfolio share purchases may adversely affect the Portfolio's performance to the extent that the Portfolio is delayed in investing new cash and is required to maintain a larger cash position than it ordinarily would. These transactions may also accelerate the realization of taxable income to shareholders if such sales of investments resulted in gains, and may also increase transaction costs. In addition, a large redemption could result in the Portfolio's current expenses being allocated over a smaller asset base, leading to an increase in the Portfolio's expense ratio.

Management Risk.  A strategy used by the Sub-Adviser may fail to produce the intended results.

Portfolio Turnover Rate Risk.  A high rate of portfolio turnover (100% or more) involves correspondingly greater expenses which must be borne by the Portfolio and its shareholders, and is also likely to result in short-term capital gains taxable to shareholders.

Underlying ETF Risk.  The Portfolio may invest in Underlying ETFs subject to statutory limitations prescribed by the Investment Company Act, or exemptive relief thereunder. An investment in an Underlying ETF generally presents the same primary risks as an investment in a conventional fund (i.e., one that is not exchange-traded) that has the same investment objectives, strategies and policies. In addition, an ETF may fail to accurately track the market segment or index that underlies its investment objective; however, the market price of the Underlying ETF's shares may trade at a premium or a discount to their net asset value. The price of an Underlying ETF can fluctuate, and the Portfolio could lose money investing in an Underlying ETF.

Principal Risks of the Underlying Funds

Credit/Default Risk.  An issuer or guarantor of fixed income securities held by an Underlying Fund (which may have low credit ratings) may default on its obligation to pay interest and repay principal or default on any other obligation. Additionally, the credit quality of securities may deteriorate rapidly, which may impair an Underlying Fund's liquidity and cause significant deterioration in NAV. These risks are more pronounced in connection with an Underlying Fund's investments in non-investment grade fixed income securities.

Derivatives Risk.  An Underlying Fund’s use of options, forwards, futures, swaps, structured securities and other derivative instruments may result in losses. These instruments, which may pose risks in addition to and greater than those associated with investing directly in securities, currencies or other instruments, may be illiquid or less liquid, volatile, difficult to price and leveraged so that small changes in the value of the underlying instruments may produce disproportionate losses to the Underlying Fund. Certain derivatives are also subject to counterparty risk, which is the risk that the other party in the transaction will not fulfill its contractual obligations. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with investments in more traditional securities and instruments.

Foreign and Emerging Countries Risk.  Foreign securities may be subject to risk of loss because of more or less foreign government regulation, less public information and less economic, political and social stability in the countries in which the Portfolio invests. The imposition of exchange controls, sanctions, confiscations, trade restrictions (including tariffs) and other government restrictions by the United States and other governments, or from problems in share registration, settlement or custody, may also result in losses. Foreign risk also involves the risk of negative foreign currency rate fluctuations, which may cause the value of securities denominated in such foreign currency (or other instruments through which an Underlying Fund has exposure to foreign currencies) to decline in value. Currency exchange rates may fluctuate significantly over short periods of time. These risks may be more pronounced in connection with the Underlying Fund's investments in securities of issuers located in emerging countries.

Geographic Risk.  If an Underlying Fund focuses its investments in issuers located in a particular country or region, the Underlying Fund may be subjected, to a greater extent than if investments were less focused, to the risks of volatile economic cycles and/or conditions and developments that may be particular to that country or region, such as: adverse securities markets; adverse exchange rates; adverse social, political, regulatory, economic, business, environmental or other developments; or natural disasters.

Interest Rate Risk.  When interest rates increase, fixed income securities or instruments held by an Underlying Fund will generally decline in value. Long-term fixed income securities or instruments will normally have more price volatility because of this risk than short-term fixed income securities or instruments. The risks associated with increasing rates are heightened given that interest rates are near historic lows, but may be expected to increase in the future with unpredictable effects on the markets and an Underlying Fund's investments. Fluctuations in interest rates may also affect the liquidity of fixed income securities and instruments held by an Underlying Fund.

Leverage Risk.  Borrowing and the use of derivatives may result in leverage and may make an Underlying Fund more volatile. The use of leverage may cause an Underlying Fund to liquidate portfolio positions to satisfy its obligations or to meet asset segregation requirements when it may not be advantageous to do so. The use of leverage by an Underlying Fund can substantially increase the adverse impact to which its investment portfolio may be subject.

Liquidity Risk.  An Underlying Fund may make investments that are illiquid or that may become less liquid in response to market developments or adverse investor perceptions. Illiquid investments may be more difficult to value. Liquidity risk may also refer to the risk that an Underlying Fund will not be able to pay redemption proceeds within the allowable time period because of unusual market conditions, an unusually high volume of redemption requests or other reasons. To meet redemption requests, an Underlying Fund may be forced to sell securities, at an unfavorable time and/or under unfavorable conditions. Liquidity risk may be the result of, among other things, the reduced number and capacity of traditional market participants to make a market in fixed income securities or the lack of an active market. The potential for liquidity risk may be magnified by a rising interest rate environment or other circumstances where investor redemptions from fixed income mutual funds may be higher than normal, potentially causing increased supply in the market due to selling activity.

Market Risk.  The value of the securities in which an Underlying Fund invests may go up or down in response to the prospects of individual companies, particular sectors or governments and/or general economic conditions throughout the world due to increasingly interconnected global economies and financial markets.

Mid-Cap and Small-Cap Risk.  Certain of the Underlying Funds may make investments mid-capitalization and small-capitalization companies involve greater risks than those associated with larger, more established companies. These securities may be subject to more abrupt or erratic price movements and may lack sufficient market liquidity, and these issuers often face greater business risks.

Mortgage-Backed and Other Asset-Backed Securities Risk.  Mortgage-related and other asset-backed securities are subject to certain additional risks, including "extension risk" (i.e., in periods of rising interest rates, issuers may pay principal later than expected) and "prepayment risk" (i.e., in periods of declining interest rates, issuers may pay principal more quickly than expected, causing an Underlying Fund to reinvest proceeds at lower prevailing interest rates). Mortgage-backed securities offered by non-governmental issuers are subject to other risks as well, including failures of private insurers to meet their obligations and unexpectedly high rates of default on the mortgages backing the securities. Other asset-backed securities are subject to risks similar to those associated with mortgage-backed securities, as well as risks associated with the nature and servicing of the assets backing the securities. Asset-backed securities may not have the benefit of a security interest in collateral comparable to that of mortgage assets, resulting in additional credit risk.

Non-Investment Grade Investments Risk.  Non-investment grade fixed income securities and unrated securities of comparable credit quality (commonly known as "junk bonds") are considered speculative and are subject to the increased risk of an issuer's inability to meet principal and interest payment obligations. These securities may be subject to greater price volatility due to such factors as specific issuer developments, interest rate sensitivity, negative perceptions of the junk bond markets generally and less liquidity.

Stock Risk.  Stock prices have historically risen and fallen in periodic cycles. U.S. and foreign stock markets have experienced periods of substantial price volatility in the past and may do so again in the future.

U.S. Government Securities Risk.  The U.S. government may not provide financial support to U.S. government agencies, instrumentalities or sponsored enterprises if it is not obligated to do so by law. U.S. Government Securities issued by those agencies, instrumentalities and sponsored enterprises, including those issued by the Federal National Mortgage Association ("Fannie Mae"), Federal Home Loan Mortgage Corporation ("Freddie Mac") and the Federal Home Loan Banks, are neither issued nor guaranteed by the U.S. Treasury and, therefore, are not backed by the full faith and credit of the United States. The maximum potential liability of the issuers of some U.S. Government Securities held by an Underlying Fund may greatly exceed their current resources, including any legal right to support from the U.S. Treasury. It is possible that issuers of U.S. Government Securities will not have the funds to meet their payment obligations in the future.

Risk Lose Money [Text]

rr_RiskLoseMoney

Loss of money is a risk of investing in the Portfolio.

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Portfolio is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any government agency.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

Effective August 22, 2016, the Madison Target Retirement 2040 Fund, a series of Madison Funds (the “Predecessor Fund”), was reorganized into the Portfolio. As accounting successor to the Predecessor Fund, the Portfolio has assumed the Predecessor Fund’s historical performance. Therefore, the performance information shown below for periods prior to August 22, 2016 is that of the Predecessor Fund. The returns presented for the Portfolio for periods prior to August 29, 2014 reflect the performance of the Madison Target Retirement 2040 Fund’s Class I Shares, a series of Ultra Series Fund (the “Ultra Predecessor Fund”). As of August 29, 2014, the inception date of the Predecessor Fund, the Ultra Predecessor Fund exchanged in kind substantially all of its portfolio holdings for Class R6 shares of the Predecessor Fund. As a result, the Predecessor Fund assumed the performance of the Ultra Predecessor Fund.

The bar chart and table below provide an indication of the risks of investing in the Portfolio by showing: (a) changes in the performance of the Portfolio’s Class R6 Shares from year to year; and (b) how the average annual total returns of the Portfolio’s Class R6 Shares compare to those of a broad-based securities market index. The Portfolio has different fees and expenses from those of the Predecessor Fund and would, therefore, have had different performance results. Past performance of the Portfolio, before and after taxes, is not necessarily an indication of how the Portfolio will perform in the future. Performance information for the Portfolio is available at no cost at www.gsamfunds.com/performance or by calling the appropriate phone number on the back cover of the Prospectus.

Because the Predecessor Fund did not offer Class A, Institutional, Service, Investor and Class R Shares, and the Class A, Institutional, Service, Investor and Class R Shares of the Portfolio have not operated for a full calendar year as of the date of the Prospectus, no performance information is shown for those share classes.

Performance reflects applicable fee waivers and/or expense limitations in effect during the periods shown.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The bar chart and table below provide an indication of the risks of investing in the Portfolio by showing: (a) changes in the performance of the Portfolio’s Class R6 Shares from year to year; and (b) how the average annual total returns of the Portfolio’s Class R6 Shares compare to those of a broad-based securities market index.

Performance One Year or Less [Text]

rr_PerformanceOneYearOrLess

Because the Predecessor Fund did not offer Class A, Institutional, Service, Investor and Class R Shares, and the Class A, Institutional, Service, Investor and Class R Shares of the Portfolio have not operated for a full calendar year as of the date of the Prospectus, no performance information is shown for those share classes.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

www.gsamfunds.com/performance

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Past performance of the Portfolio, before and after taxes, is not necessarily an indication of how the Portfolio will perform in the future.

Bar Chart [Heading]

rr_BarChartHeading

TOTAL RETURN CALENDAR YEAR (CLASS R6)

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

The total return for Class R6 Shares for the 9-month period ended September 30, 2017 was 11.05%.

Best Quarter
Q2 ‘09          +18.13%

Worst Quarter
Q4 ‘08          –23.55%

Performance Table Heading

rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS

For the period ended December 31, 2016

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 an investor’s tax situation and may differ from those shown. In addition, the after-tax returns shown are not relevant to investors who hold Portfolio shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts.

Performance Table Narrative

rr_PerformanceTableNarrativeTextBlock

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. In addition, the after-tax returns shown are not relevant to investors who hold Portfolio shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts.

Goldman Sachs Target Date 2040 Portfolio | Class A

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

5.50%

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

0.77%

Other Expenses

rr_OtherExpensesOverAssets

0.77%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.18%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

1.45%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(0.57%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.88%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 635

3 Years

rr_ExpenseExampleYear03

930

5 Years

rr_ExpenseExampleYear05

1,247

10 Years

rr_ExpenseExampleYear10

$ 2,143

Goldman Sachs Target Date 2040 Portfolio | Institutional

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

0.63%

Other Expenses

rr_OtherExpensesOverAssets

0.63%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.18%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

1.06%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(0.57%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.49%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 50

3 Years

rr_ExpenseExampleYear03

280

5 Years

rr_ExpenseExampleYear05

529

10 Years

rr_ExpenseExampleYear10

$ 1,243

Goldman Sachs Target Date 2040 Portfolio | Service

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

0.25%

All Other Expenses

rr_Component2OtherExpensesOverAssets

0.63%

Other Expenses

rr_OtherExpensesOverAssets

0.88%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.18%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

1.56%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(0.57%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.99%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 101

3 Years

rr_ExpenseExampleYear03

437

5 Years

rr_ExpenseExampleYear05

796

10 Years

rr_ExpenseExampleYear10

$ 1,808

Goldman Sachs Target Date 2040 Portfolio | Investor

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

0.77%

Other Expenses

rr_OtherExpensesOverAssets

0.77%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.18%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

1.20%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(0.57%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.63%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 64

3 Years

rr_ExpenseExampleYear03

324

5 Years

rr_ExpenseExampleYear05

605

10 Years

rr_ExpenseExampleYear10

$ 1,404

Goldman Sachs Target Date 2040 Portfolio | Class R

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.50%

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

0.77%

Other Expenses

rr_OtherExpensesOverAssets

0.77%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.18%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

1.70%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(0.57%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

1.13%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 115

3 Years

rr_ExpenseExampleYear03

480

5 Years

rr_ExpenseExampleYear05

869

10 Years

rr_ExpenseExampleYear10

$ 1,961

Goldman Sachs Target Date 2040 Portfolio | Class R6

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

0.62%

Other Expenses

rr_OtherExpensesOverAssets

0.62%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.18%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

1.05%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(0.57%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.48%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 49

3 Years

rr_ExpenseExampleYear03

277

5 Years

rr_ExpenseExampleYear05

524

10 Years

rr_ExpenseExampleYear10

$ 1,231

2008

rr_AnnualReturn2008

(41.65%)

2009

rr_AnnualReturn2009

31.64%

2010

rr_AnnualReturn2010

9.97%

2011

rr_AnnualReturn2011

0.47%

2012

rr_AnnualReturn2012

11.42%

2013

rr_AnnualReturn2013

19.63%

2014

rr_AnnualReturn2014

8.25%

2015

rr_AnnualReturn2015

(0.97%)

2016

rr_AnnualReturn2016

8.45%

Year to Date Return, Label

rr_YearToDateReturnLabel

total return

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2017

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

11.05%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Jun. 30, 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

18.13%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2008

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(23.55%)

1 Year

rr_AverageAnnualReturnYear01

8.45%

5 Years

rr_AverageAnnualReturnYear05

9.15%

Since Inception

rr_AverageAnnualReturnSinceInception

2.68%

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 01, 2007

Goldman Sachs Target Date 2040 Portfolio | Returns After Taxes on Distributions | Class R6

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

6.43%

5 Years

rr_AverageAnnualReturnYear05

8.74%

Since Inception

rr_AverageAnnualReturnSinceInception

2.47%

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 01, 2007

Goldman Sachs Target Date 2040 Portfolio | Returns After Taxes on Distributions and Sale of Portfolio Shares | Class R6

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

5.80%

5 Years

rr_AverageAnnualReturnYear05

7.17%

Since Inception

rr_AverageAnnualReturnSinceInception

2.05%

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 01, 2007

Goldman Sachs Target Date 2040 Portfolio | S&P Target Date To 2040 Index (reflects no deduction for sales charges, account fees, expenses or taxes)

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

8.75%

5 Years

rr_AverageAnnualReturnYear05

9.09%

Since Inception

rr_AverageAnnualReturnSinceInception

3.64%

[1] The Portfolio’s “Other Expenses” have been restated to reflect expenses expected to be incurred during the current fiscal year.

[2] The Total Annual Portfolio Operating Expenses do not correlate to the ratios of the net and total expenses to average net assets provided in the Financial Highlights, which reflect the operating expenses of the Portfolio and do not include Acquired (Underlying) Fund Fees and Expenses.

[3] The Investment Adviser has agreed to reduce or limit “Other Expenses” (excluding acquired (underlying) fund fees and expenses, transfer agency fees and expenses, service fees, shareholder administration fees, taxes, interest, brokerage fees, expenses of shareholder meetings, litigation and indemnification, and extraordinary expenses) to 0.024% of the Portfolio’s average daily net assets. Additionally, Goldman Sachs & Co. LLC (“Goldman Sachs”), the Portfolio’s transfer agent, has agreed to waive a portion of its transfer agency fee (a component of “Other Expenses”) equal to 0.01% as an annual percentage rate of the average daily net assets attributable to Class R6 Shares of the Portfolio. These arrangements will remain in effect through at least December 29, 2018, and prior to such date, the Investment Adviser and Goldman Sachs (as applicable) may not terminate the arrangements without the approval of the Board of Trustees.

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Goldman Sachs Target Date 2045 Portfolio

Goldman Sachs Target Date 2045 Portfolio—Summary

Investment Objective

The Goldman Sachs Target Date 2045 Portfolio (the “Portfolio”) seeks to provide capital appreciation and current income consistent with its current asset allocation.

Fees and Expenses of the Portfolio

This table describes the fees and expenses that you may pay if you buy and hold shares of the Portfolio. You may qualify for sales charge discounts on purchases of Class A Shares if you invest at least $50,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 82 and in Appendix C—Additional Information About Sales Charge Variations, Waivers and Discounts on page 126 of the Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-133 of the Portfolio’s Statement of Additional Information (“SAI”).

Shareholder Fees
(fees paid directly from your investment)

Shareholder Fees - Goldman Sachs Target Date 2045 Portfolio	Class A	Institutional	Service	Investor	Class R	Class R6
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.50%	none	none	none	none	none

Annual Portfolio Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Annual Portfolio Operating Expenses - Goldman Sachs Target Date 2045 Portfolio		Class A	Institutional	Service	Investor	Class R	Class R6
Management Fees		0.25%	0.25%	0.25%	0.25%	0.25%	0.25%
Distribution and/or Service (12b-1) Fees		0.25%	none	0.25%	none	0.50%	none
Other Expenses	[1]	2.56%	2.42%	2.67%	2.56%	2.56%	2.41%
Shareholder Administration Fees		none	none	0.25%	none	none	none
All Other Expenses		2.56%	2.42%	2.42%	2.56%	2.56%	2.41%
Acquired (Underlying) Fund Fees and Expenses		0.17%	0.17%	0.17%	0.17%	0.17%	0.17%
Total Annual Portfolio Operating Expenses	[2]	3.23%	2.84%	3.34%	2.98%	3.48%	2.83%
Fee Waiver and Expense Limitation	[3]	(2.35%)	(2.35%)	(2.35%)	(2.35%)	(2.35%)	(2.35%)
Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation	[2]	0.88%	0.49%	0.99%	0.63%	1.13%	0.48%

Expense Example

This Example is intended to help you compare the cost of investing in the Portfolio with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in Class A, Institutional, Service, Investor, Class R and/or Class R6 Shares of the Portfolio for the time periods indicated and then redeem all of your Class A, Institutional, Service, Investor, Class R and/or Class R6 Shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Portfolio’s operating expenses remain the same (except that the Example incorporates the fee waiver and expense limitation arrangements for only the first year). Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example - Goldman Sachs Target Date 2045 Portfolio - USD ($)	1 Year	3 Years	5 Years	10 Years
Class A Shares	635	1,282	1,952	3,733
Institutional Shares	50	657	1,290	2,996
Service Shares	101	807	1,537	3,471
Investor Shares	64	699	1,360	3,131
Class R Shares	115	849	1,606	3,600
Class R6 Shares	49	654	1,285	2,986

Portfolio Turnover

The Portfolio may pay transaction costs when it buys and sells securities or instruments (i.e., “turns over” its portfolio). A high rate of portfolio turnover may result in increased transaction costs, including brokerage commissions, which must be borne by the Portfolio and its shareholders, and is also likely to result in higher short-term capital gains for taxable shareholders. These costs are not reflected in annual fund operating expenses or in the expense example above, but are reflected in the Portfolio’s performance. The Portfolio’s portfolio turnover rate for the fiscal period ended August 31, 2017 was 143% of the average value of its portfolio.

Principal Strategy

The Portfolio employs an asset allocation strategy designed for investors who plan to retire and to begin gradually withdrawing their investment from the Portfolio beginning in approximately 2045 (the "Target Date"). The Portfolio is managed for an investor planning to retire at the age of 65 on or around the Target Date.

The Portfolio generally seeks to achieve its investment objective by investing in shares of exchange-traded funds ("Underlying ETFs") and other registered investment companies (collectively, the "Underlying Funds"), according to an asset allocation strategy, developed by Madison Asset Management, LLC (the "Sub-Adviser") who is unaffiliated with the Investment Adviser, for investors planning to retire in or within a few years of 2045. Over time, the Portfolio's asset allocation will become more conservative until it reaches approximately 10-30% in equity funds and 70-90% in fixed income funds at the Target Date as illustrated in the graph below. After the Target Date, and as also illustrated in the graph below, the Portfolio's asset allocation targets are expected to remain within these approximate ranges. The graph below applies to each Goldman Sachs Target Date Portfolio identified in the Prospectus.



The asset allocation strategy is designed to reduce the volatility of investment returns in the later years while still providing the potential for higher total returns over the target period. Market conditions and the perceived value of securities will change as the investor moves across the glide path. Although the actual allocations may vary, the chart below illustrates the expected strategic asset allocation of the glide path and the tactical allocation ranges of the core asset classes and sub-asset classes.

YEARS TO TARGET DATE	30	25	20	15	10	5	0	–5	–10
Strategic Allocations
Equity	75%	70%	65%	60%	55%	38%	20%	20%	20%
US Equity	53%	49%	46%	42%	39%	26%	14%	14%	14%
Non-US Developed Equities	23%	21%	20%	18%	17%	11%	6%	6%	6%
Fixed Income	25%	30%	35%	40%	45%	63%	80%	80%	80%
Tactical Allocation Ranges
Equity	65-85%	60-80%	55-75%	50-70%	45-65%	28-48%	10-30%	10-30%	10-30%
US Equity	39-77%	36-72%	33-68%	30-63%	27-59%	17-43%	6-27%	6-27%	6-27%
Non-US Equities	7-34%	6-32%	6-30%	5-28%	5-26%	3-19%	1-12%	1-12%	1-12%
Fixed Income	15-35%	20-40%	25-45%	30-50%	35-55%	53-73%	70-90%	70-90%	70-90%
Sub-Asset Classes and Alternatives
Emerging Markets Equities	0-17%	0-16%	0-15%	0-14%	0-13%	0-10%	0-6%	0-6%	0-6%
Real Estate	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%
Commodities	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%
Other Alternative Strategies	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%

Note: Above allocations may not sum to total due to rounding. 

On a periodic basis, the Sub-Adviser will evaluate and may revise the Portfolio's asset allocation, including revising the asset class weightings and adding and/or removing Underlying Funds. There will be times when the perceived value of equity and/or fixed income securities are stretched (or depressed) and the opportunity to proactively protect against (or take advantage of) these opportunities necessitates an ability to deviate from the glide path's strategic target. In order to attempt to capitalize on these periodic opportunities, the Sub-Adviser established a "tactical allocation range" that allows flexibility to increase or decrease exposure from the glide path's strategic allocations. As a result, the Portfolio's equity and fixed income asset allocation targets may range within the bounds of this tactical allocation range as illustrated in the chart above depending on the Sub-Adviser's views of the appropriate mix of the Portfolio's asset allocation based on then-current economic, market or other conditions, or factors unique to the Portfolio. Certain sub-asset classes, like real estate, commodities, and other alternative strategies, may be invested in using the tactical allocation range illustrated in the table above. The Sub-Adviser may also use the tactical allocation range to invest in certain other sub-asset classes within fixed income such as: domestic high yield non-investment grade securities (commonly referred to as "junk bonds"), inflation-linked securities, securities issued by foreign corporate and governmental issuers, sovereign and corporate debt securities of issuers in emerging market countries, convertible securities, and preferred stock. The Sub-Adviser will also monitor the Underlying Funds on an ongoing basis and may increase or decrease the Portfolio's investment in one or more Underlying Funds. The Underlying Fund selections are made based on several considerations, including the Portfolio's style or asset class exposures, portfolio characteristics, risk profile, and investment process. With regard to investments in Underlying Funds that invest in debt securities, the Sub-Adviser seeks to select portfolios of securities with long-, intermediate- and short-term maturities. Although the Portfolio does not intend to concentrate its investments in a particular industry, the Portfolio may indirectly concentrate in a particular industry or group of industries through its aggregate investment in one or more Underlying Funds. The particular Underlying Funds in which the Portfolio may invest and the Portfolio's targets and ranges will change from time to time without shareholder approval or notice.

The Sub-Adviser's strategy is intended to represent a conservative investment strategy. The Sub-Adviser's expectation is that the Portfolio may participate in market appreciation during bull markets and experience something less than full participation during bear markets compared with other funds holding more speculative and volatile securities. There is no assurance that the Sub-Adviser's expectations regarding this investment strategy will be realized.

Although the Portfolio expects to pursue its investment objective utilizing its principal investment strategies regardless of market conditions, the Portfolio may invest up to 100% in money market instruments. To the extent the Portfolio engages in this temporary defensive position, the Portfolio's ability to achieve its investment objective may be diminished.

Management Process

The Investment Adviser and the Portfolio have received an exemptive order from the Securities and Exchange Commission ("SEC"). Under the exemptive order, the Investment Adviser has the ultimate responsibility, subject to oversight by the Portfolio's Board of Trustees, to oversee the Sub-Adviser and recommend its hiring, termination and replacement. The initial shareholder of the Portfolio approved the Portfolio's operation in this manner and reliance by the Portfolio on this exemptive order.

Additional Information

The Portfolio's benchmark index is the S&P Target Date To 2045 Index (the "Index").

Principal Risks of the Portfolio

Loss of money is a risk of investing in the Portfolio. An investment in the Portfolio is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation ("FDIC") or any government agency. The Portfolio should not be relied upon as a complete investment program. Stated allocations may be subject to change. There can be no assurance that the Portfolio will achieve its investment objective. Investments in the Portfolio involve substantial risks which prospective investors should consider carefully before investing. Investors should also consider, in addition to his or her age or retirement date, other factors, including the investor's risk tolerance, personal circumstances, and complete financial situation.

Asset Allocation Risk.  The Portfolio's allocations to various asset classes and to the Underlying Funds may cause the Portfolio to underperform other funds with a similar investment objective.

Expenses.  By investing in the Underlying Funds indirectly through the Portfolio, the investor will incur not only a proportionate share of the expenses of the Underlying Funds held by the Portfolio (including operating costs and investment management fees), but also expenses of the Portfolio.

Inadequate Retirement Income.  An investment in the Portfolio is not guaranteed, and the Portfolio may experience losses, including losses near, at, or after the Target Date. There is no guarantee that the Portfolio will achieve sufficient capital appreciation to provide adequate income at and through retirement. Moreover, there is no guarantee that the Portfolio's performance will keep pace with or exceed the rate of inflation, which may reduce the value of your investment over time.

Investing in the Underlying Funds.  The investments of the Portfolio may be concentrated in one or more Underlying Funds (including ETFs and other registered investment companies) subject to statutory limitations prescribed by the Investment Company Act of 1940, as amended (the "Investment Company Act"), or exemptive relief thereunder. The Portfolio's investment performance is directly related to the investment performance of the Underlying Funds it holds. The Portfolio is subject to the risk factors associated with the investments of the Underlying Funds in direct proportion to the amount of assets allocated to each. If the Portfolio has a relative concentration of its portfolio in a single Underlying Fund, it may be more susceptible to adverse developments affecting that Underlying Fund, and may be more susceptible to losses because of these developments.

Investments of the Underlying Funds.  Because the Portfolio invests in the Underlying Funds, the Portfolio's shareholders will be affected by the investment policies and practices of the Underlying Funds in direct proportion to the amount of assets the Portfolio allocates to those Underlying Funds. A strategy used by the Underlying Funds may fail to produce the intended results.

Large Shareholder Transactions Risk.  The Portfolio may experience adverse effects when certain large shareholders purchase or redeem large amounts of shares of the Portfolio. Such large shareholder redemptions may cause the Portfolio to sell portfolio securities at times when it would not otherwise do so, which may negatively impact the Portfolio's NAV and liquidity. Similarly, large Portfolio share purchases may adversely affect the Portfolio's performance to the extent that the Portfolio is delayed in investing new cash and is required to maintain a larger cash position than it ordinarily would. These transactions may also accelerate the realization of taxable income to shareholders if such sales of investments resulted in gains, and may also increase transaction costs. In addition, a large redemption could result in the Portfolio's current expenses being allocated over a smaller asset base, leading to an increase in the Portfolio's expense ratio.

Management Risk.  A strategy used by the Sub-Adviser may fail to produce the intended results.

Portfolio Turnover Rate Risk.  A high rate of portfolio turnover (100% or more) involves correspondingly greater expenses which must be borne by the Portfolio and its shareholders, and is also likely to result in short-term capital gains taxable to shareholders.

Underlying ETF Risk.  The Portfolio may invest in Underlying ETFs subject to statutory limitations prescribed by the Investment Company Act, or exemptive relief thereunder. An investment in an Underlying ETF generally presents the same primary risks as an investment in a conventional fund (i.e., one that is not exchange-traded) that has the same investment objectives, strategies and policies. In addition, an ETF may fail to accurately track the market segment or index that underlies its investment objective; however, the market price of the Underlying ETF's shares may trade at a premium or a discount to their net asset value. The price of an Underlying ETF can fluctuate, and the Portfolio could lose money investing in an Underlying ETF.

Principal Risks of the Underlying Funds

Credit/Default Risk.  An issuer or guarantor of fixed income securities held by an Underlying Fund (which may have low credit ratings) may default on its obligation to pay interest and repay principal or default on any other obligation. Additionally, the credit quality of securities may deteriorate rapidly, which may impair an Underlying Fund's liquidity and cause significant deterioration in NAV. These risks are more pronounced in connection with an Underlying Fund's investments in non-investment grade fixed income securities.

Derivatives Risk.  An Underlying Fund's use of options, forwards, futures, swaps, structured securities and other derivative instruments may result in losses. These instruments, which may pose risks in addition to and greater than those associated with investing directly in securities, currencies or other instruments, may be illiquid or less liquid, volatile, difficult to price and leveraged so that small changes in the value of the underlying instruments may produce disproportionate losses to the Underlying Fund. Certain derivatives are also subject to counterparty risk, which is the risk that the other party in the transaction will not fulfill its contractual obligations. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with investments in more traditional securities and instruments.

Foreign and Emerging Countries Risk.  Foreign securities may be subject to risk of loss because of more or less foreign government regulation, less public information and less economic, political and social stability in the countries in which the Portfolio invests. The imposition of exchange controls, sanctions, confiscations, trade restrictions (including tariffs) and other government restrictions by the United States and other governments, or from problems in share registration, settlement or custody, may also result in losses. Foreign risk also involves the risk of negative foreign currency rate fluctuations, which may cause the value of securities denominated in such foreign currency (or other instruments through which an Underlying Fund has exposure to foreign currencies) to decline in value. Currency exchange rates may fluctuate significantly over short periods of time. These risks may be more pronounced in connection with the Underlying Fund's investments in securities of issuers located in emerging countries.

Geographic Risk.  If an Underlying Fund focuses its investments in issuers located in a particular country or region, the Underlying Fund may be subjected, to a greater extent than if investments were less focused, to the risks of volatile economic cycles and/or conditions and developments that may be particular to that country or region, such as: adverse securities markets; adverse exchange rates; adverse social, political, regulatory, economic, business, environmental or other developments; or natural disasters.

Interest Rate Risk.  When interest rates increase, fixed income securities or instruments held by an Underlying Fund will generally decline in value. Long-term fixed income securities or instruments will normally have more price volatility because of this risk than short-term fixed income securities or instruments. The risks associated with increasing rates are heightened given that interest rates are near historic lows, but may be expected to increase in the future with unpredictable effects on the markets and an Underlying Fund's investments. Fluctuations in interest rates may also affect the liquidity of fixed income securities and instruments held by an Underlying Fund.

Leverage Risk.  Borrowing and the use of derivatives may result in leverage and may make an Underlying Fund more volatile. The use of leverage may cause an Underlying Fund to liquidate portfolio positions to satisfy its obligations or to meet asset segregation requirements when it may not be advantageous to do so. The use of leverage by an Underlying Fund can substantially increase the adverse impact to which its investment portfolio may be subject.

Liquidity Risk.  An Underlying Fund may make investments that are illiquid or that may become less liquid in response to market developments or adverse investor perceptions. Illiquid investments may be more difficult to value. Liquidity risk may also refer to the risk that an Underlying Fund will not be able to pay redemption proceeds within the allowable time period because of unusual market conditions, an unusually high volume of redemption requests or other reasons. To meet redemption requests, an Underlying Fund may be forced to sell securities, at an unfavorable time and/or under unfavorable conditions. Liquidity risk may be the result of, among other things, the reduced number and capacity of traditional market participants to make a market in fixed income securities or the lack of an active market. The potential for liquidity risk may be magnified by a rising interest rate environment or other circumstances where investor redemptions from fixed income mutual funds may be higher than normal, potentially causing increased supply in the market due to selling activity.

Market Risk.  The value of the securities in which an Underlying Fund invests may go up or down in response to the prospects of individual companies, particular sectors or governments and/or general economic conditions throughout the world due to increasingly interconnected global economies and financial markets.

Mid-Cap and Small-Cap Risk.  Certain of the Underlying Funds may make investments mid-capitalization and small-capitalization companies involve greater risks than those associated with larger, more established companies. These securities may be subject to more abrupt or erratic price movements and may lack sufficient market liquidity, and these issuers often face greater business risks.

Mortgage-Backed and Other Asset-Backed Securities Risk.  Mortgage-related and other asset-backed securities are subject to certain additional risks, including "extension risk" (i.e., in periods of rising interest rates, issuers may pay principal later than expected) and "prepayment risk" (i.e., in periods of declining interest rates, issuers may pay principal more quickly than expected, causing an Underlying Fund to reinvest proceeds at lower prevailing interest rates). Mortgage-backed securities offered by non-governmental issuers are subject to other risks as well, including failures of private insurers to meet their obligations and unexpectedly high rates of default on the mortgages backing the securities. Other asset-backed securities are subject to risks similar to those associated with mortgage-backed securities, as well as risks associated with the nature and servicing of the assets backing the securities. Asset-backed securities may not have the benefit of a security interest in collateral comparable to that of mortgage assets, resulting in additional credit risk.

Non-Investment Grade Investments Risk.  Non-investment grade fixed income securities and unrated securities of comparable credit quality (commonly known as "junk bonds") are considered speculative and are subject to the increased risk of an issuer's inability to meet principal and interest payment obligations. These securities may be subject to greater price volatility due to such factors as specific issuer developments, interest rate sensitivity, negative perceptions of the junk bond markets generally and less liquidity.

Stock Risk.  Stock prices have historically risen and fallen in periodic cycles. U.S. and foreign stock markets have experienced periods of substantial price volatility in the past and may do so again in the future.

U.S. Government Securities Risk.  The U.S. government may not provide financial support to U.S. government agencies, instrumentalities or sponsored enterprises if it is not obligated to do so by law. U.S. Government Securities issued by those agencies, instrumentalities and sponsored enterprises, including those issued by the Federal National Mortgage Association ("Fannie Mae"), Federal Home Loan Mortgage Corporation ("Freddie Mac") and the Federal Home Loan Banks, are neither issued nor guaranteed by the U.S. Treasury and, therefore, are not backed by the full faith and credit of the United States. The maximum potential liability of the issuers of some U.S. Government Securities held by an Underlying Fund may greatly exceed their current resources, including any legal right to support from the U.S. Treasury. It is possible that issuers of U.S. Government Securities will not have the funds to meet their payment obligations in the future.

Performance

As the Portfolio has not operated for a full calendar year as of the date of the Prospectus, there is no performance information quoted for the Portfolio. Updated performance information is available at no cost at www.gsamfunds.com/performance or by calling the phone number on the back of the Prospectus.

[1] The Portfolio’s “Other Expenses” have been restated to reflect expenses expected to be incurred during the current fiscal year.

[2] The Total Annual Portfolio Operating Expenses do not correlate to the ratios of the net and total expenses to average net assets provided in the Financial Highlights, which reflect the operating expenses of the Portfolio and do not include Acquired (Underlying) Fund Fees and Expenses.

[3] The Investment Adviser has agreed to reduce or limit “Other Expenses” (excluding acquired (underlying) fund fees and expenses, transfer agency fees and expenses, service fees, shareholder administration fees, taxes, interest, brokerage fees, expenses of shareholder meetings, litigation and indemnification, and extraordinary expenses) to 0.014% of the Portfolio’s average daily net assets. Additionally, Goldman Sachs & Co. LLC (“Goldman Sachs”), the Portfolio’s transfer agent, has agreed to waive a portion of its transfer agency fee (a component of “Other Expenses”) equal to 0.01% as an annual percentage rate of the average daily net assets attributable to Class R6 Shares of the Portfolio. These arrangements will remain in effect through at least December 29, 2018, and prior to such date, the Investment Adviser and Goldman Sachs (as applicable) may not terminate the arrangements without the approval of the Board of Trustees.

XML

Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Registrant Name

dei_EntityRegistrantName

Goldman Sachs Trust II

Prospectus Date

rr_ProspectusDate

May 21, 2018

Goldman Sachs Target Date 2045 Portfolio

Risk/Return:

rr_RiskReturnAbstract

Risk/Return [Heading]

rr_RiskReturnHeading

Goldman Sachs Target Date 2045 Portfolio—Summary

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Goldman Sachs Target Date 2045 Portfolio (the “Portfolio”) seeks to provide capital appreciation and current income consistent with its current asset allocation.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses of the Portfolio

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 Portfolio. You may qualify for sales charge discounts on purchases of Class A Shares if you invest at least $50,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 82 and in Appendix C—Additional Information About Sales Charge Variations, Waivers and Discounts on page 126 of the Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-133 of the Portfolio’s Statement of Additional Information (“SAI”).

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees
(fees paid directly from your investment)

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Portfolio Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

December 29, 2018

Portfolio Turnover [Heading]

rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block]

rr_PortfolioTurnoverTextBlock

The Portfolio may pay transaction costs when it buys and sells securities or instruments (i.e., “turns over” its portfolio). A high rate of portfolio turnover may result in increased transaction costs, including brokerage commissions, which must be borne by the Portfolio and its shareholders, and is also likely to result in higher short-term capital gains for taxable shareholders. These costs are not reflected in annual fund operating expenses or in the expense example above, but are reflected in the Portfolio’s performance. The Portfolio’s portfolio turnover rate for the fiscal period ended August 31, 2017 was 143% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

143.00%

Expense Breakpoint Discounts [Text]

rr_ExpenseBreakpointDiscounts

You may qualify for sales charge discounts on purchases of Class A Shares if you invest at least $50,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 82 and in Appendix C—Additional Information About Sales Charge Variations, Waivers and Discounts on page 126 of the Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-133 of the Portfolio’s Statement of Additional Information (“SAI”).

Expense Breakpoint, Minimum Investment Required [Amount]

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

$ 50,000

Expenses Restated to Reflect Current [Text]

rr_ExpensesRestatedToReflectCurrent

The Portfolio’s “Other Expenses” have been restated to reflect expenses expected to be incurred during the current fiscal year.

Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text]

rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees

The Total Annual Portfolio Operating Expenses do not correlate to the ratios of the net and total expenses to average net assets provided in the Financial Highlights, which reflect the operating expenses of the Portfolio and do not include Acquired (Underlying) Fund Fees and Expenses.

Expense Example [Heading]

rr_ExpenseExampleHeading

Expense Example

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This Example is intended to help you compare the cost of investing in the Portfolio with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in Class A, Institutional, Service, Investor, Class R and/or Class R6 Shares of the Portfolio for the time periods indicated and then redeem all of your Class A, Institutional, Service, Investor, Class R and/or Class R6 Shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Portfolio’s operating expenses remain the same (except that the Example incorporates the fee waiver and expense limitation arrangements for only the first year). Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Strategy [Heading]

rr_StrategyHeading

Principal Strategy

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

The Portfolio employs an asset allocation strategy designed for investors who plan to retire and to begin gradually withdrawing their investment from the Portfolio beginning in approximately 2045 (the "Target Date"). The Portfolio is managed for an investor planning to retire at the age of 65 on or around the Target Date.

The Portfolio generally seeks to achieve its investment objective by investing in shares of exchange-traded funds ("Underlying ETFs") and other registered investment companies (collectively, the "Underlying Funds"), according to an asset allocation strategy, developed by Madison Asset Management, LLC (the "Sub-Adviser") who is unaffiliated with the Investment Adviser, for investors planning to retire in or within a few years of 2045. Over time, the Portfolio's asset allocation will become more conservative until it reaches approximately 10-30% in equity funds and 70-90% in fixed income funds at the Target Date as illustrated in the graph below. After the Target Date, and as also illustrated in the graph below, the Portfolio's asset allocation targets are expected to remain within these approximate ranges. The graph below applies to each Goldman Sachs Target Date Portfolio identified in the Prospectus.



The asset allocation strategy is designed to reduce the volatility of investment returns in the later years while still providing the potential for higher total returns over the target period. Market conditions and the perceived value of securities will change as the investor moves across the glide path. Although the actual allocations may vary, the chart below illustrates the expected strategic asset allocation of the glide path and the tactical allocation ranges of the core asset classes and sub-asset classes.

YEARS TO TARGET DATE	30	25	20	15	10	5	0	–5	–10
Strategic Allocations
Equity	75%	70%	65%	60%	55%	38%	20%	20%	20%
US Equity	53%	49%	46%	42%	39%	26%	14%	14%	14%
Non-US Developed Equities	23%	21%	20%	18%	17%	11%	6%	6%	6%
Fixed Income	25%	30%	35%	40%	45%	63%	80%	80%	80%
Tactical Allocation Ranges
Equity	65-85%	60-80%	55-75%	50-70%	45-65%	28-48%	10-30%	10-30%	10-30%
US Equity	39-77%	36-72%	33-68%	30-63%	27-59%	17-43%	6-27%	6-27%	6-27%
Non-US Equities	7-34%	6-32%	6-30%	5-28%	5-26%	3-19%	1-12%	1-12%	1-12%
Fixed Income	15-35%	20-40%	25-45%	30-50%	35-55%	53-73%	70-90%	70-90%	70-90%
Sub-Asset Classes and Alternatives
Emerging Markets Equities	0-17%	0-16%	0-15%	0-14%	0-13%	0-10%	0-6%	0-6%	0-6%
Real Estate	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%
Commodities	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%
Other Alternative Strategies	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%

Note: Above allocations may not sum to total due to rounding. 

On a periodic basis, the Sub-Adviser will evaluate and may revise the Portfolio's asset allocation, including revising the asset class weightings and adding and/or removing Underlying Funds. There will be times when the perceived value of equity and/or fixed income securities are stretched (or depressed) and the opportunity to proactively protect against (or take advantage of) these opportunities necessitates an ability to deviate from the glide path's strategic target. In order to attempt to capitalize on these periodic opportunities, the Sub-Adviser established a "tactical allocation range" that allows flexibility to increase or decrease exposure from the glide path's strategic allocations. As a result, the Portfolio's equity and fixed income asset allocation targets may range within the bounds of this tactical allocation range as illustrated in the chart above depending on the Sub-Adviser's views of the appropriate mix of the Portfolio's asset allocation based on then-current economic, market or other conditions, or factors unique to the Portfolio. Certain sub-asset classes, like real estate, commodities, and other alternative strategies, may be invested in using the tactical allocation range illustrated in the table above. The Sub-Adviser may also use the tactical allocation range to invest in certain other sub-asset classes within fixed income such as: domestic high yield non-investment grade securities (commonly referred to as "junk bonds"), inflation-linked securities, securities issued by foreign corporate and governmental issuers, sovereign and corporate debt securities of issuers in emerging market countries, convertible securities, and preferred stock. The Sub-Adviser will also monitor the Underlying Funds on an ongoing basis and may increase or decrease the Portfolio's investment in one or more Underlying Funds. The Underlying Fund selections are made based on several considerations, including the Portfolio's style or asset class exposures, portfolio characteristics, risk profile, and investment process. With regard to investments in Underlying Funds that invest in debt securities, the Sub-Adviser seeks to select portfolios of securities with long-, intermediate- and short-term maturities. Although the Portfolio does not intend to concentrate its investments in a particular industry, the Portfolio may indirectly concentrate in a particular industry or group of industries through its aggregate investment in one or more Underlying Funds. The particular Underlying Funds in which the Portfolio may invest and the Portfolio's targets and ranges will change from time to time without shareholder approval or notice.

The Sub-Adviser's strategy is intended to represent a conservative investment strategy. The Sub-Adviser's expectation is that the Portfolio may participate in market appreciation during bull markets and experience something less than full participation during bear markets compared with other funds holding more speculative and volatile securities. There is no assurance that the Sub-Adviser's expectations regarding this investment strategy will be realized.

Although the Portfolio expects to pursue its investment objective utilizing its principal investment strategies regardless of market conditions, the Portfolio may invest up to 100% in money market instruments. To the extent the Portfolio engages in this temporary defensive position, the Portfolio's ability to achieve its investment objective may be diminished.

Management Process

The Investment Adviser and the Portfolio have received an exemptive order from the Securities and Exchange Commission ("SEC"). Under the exemptive order, the Investment Adviser has the ultimate responsibility, subject to oversight by the Portfolio's Board of Trustees, to oversee the Sub-Adviser and recommend its hiring, termination and replacement. The initial shareholder of the Portfolio approved the Portfolio's operation in this manner and reliance by the Portfolio on this exemptive order.

Additional Information

The Portfolio's benchmark index is the S&P Target Date To 2045 Index (the "Index").

Risk [Heading]

rr_RiskHeading

Principal Risks of the Portfolio

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

Loss of money is a risk of investing in the Portfolio. An investment in the Portfolio is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation ("FDIC") or any government agency. The Portfolio should not be relied upon as a complete investment program. Stated allocations may be subject to change. There can be no assurance that the Portfolio will achieve its investment objective. Investments in the Portfolio involve substantial risks which prospective investors should consider carefully before investing. Investors should also consider, in addition to his or her age or retirement date, other factors, including the investor's risk tolerance, personal circumstances, and complete financial situation.

Asset Allocation Risk.  The Portfolio's allocations to various asset classes and to the Underlying Funds may cause the Portfolio to underperform other funds with a similar investment objective.

Expenses.  By investing in the Underlying Funds indirectly through the Portfolio, the investor will incur not only a proportionate share of the expenses of the Underlying Funds held by the Portfolio (including operating costs and investment management fees), but also expenses of the Portfolio.

Inadequate Retirement Income.  An investment in the Portfolio is not guaranteed, and the Portfolio may experience losses, including losses near, at, or after the Target Date. There is no guarantee that the Portfolio will achieve sufficient capital appreciation to provide adequate income at and through retirement. Moreover, there is no guarantee that the Portfolio's performance will keep pace with or exceed the rate of inflation, which may reduce the value of your investment over time.

Investing in the Underlying Funds.  The investments of the Portfolio may be concentrated in one or more Underlying Funds (including ETFs and other registered investment companies) subject to statutory limitations prescribed by the Investment Company Act of 1940, as amended (the "Investment Company Act"), or exemptive relief thereunder. The Portfolio's investment performance is directly related to the investment performance of the Underlying Funds it holds. The Portfolio is subject to the risk factors associated with the investments of the Underlying Funds in direct proportion to the amount of assets allocated to each. If the Portfolio has a relative concentration of its portfolio in a single Underlying Fund, it may be more susceptible to adverse developments affecting that Underlying Fund, and may be more susceptible to losses because of these developments.

Investments of the Underlying Funds.  Because the Portfolio invests in the Underlying Funds, the Portfolio's shareholders will be affected by the investment policies and practices of the Underlying Funds in direct proportion to the amount of assets the Portfolio allocates to those Underlying Funds. A strategy used by the Underlying Funds may fail to produce the intended results.

Large Shareholder Transactions Risk.  The Portfolio may experience adverse effects when certain large shareholders purchase or redeem large amounts of shares of the Portfolio. Such large shareholder redemptions may cause the Portfolio to sell portfolio securities at times when it would not otherwise do so, which may negatively impact the Portfolio's NAV and liquidity. Similarly, large Portfolio share purchases may adversely affect the Portfolio's performance to the extent that the Portfolio is delayed in investing new cash and is required to maintain a larger cash position than it ordinarily would. These transactions may also accelerate the realization of taxable income to shareholders if such sales of investments resulted in gains, and may also increase transaction costs. In addition, a large redemption could result in the Portfolio's current expenses being allocated over a smaller asset base, leading to an increase in the Portfolio's expense ratio.

Management Risk.  A strategy used by the Sub-Adviser may fail to produce the intended results.

Portfolio Turnover Rate Risk.  A high rate of portfolio turnover (100% or more) involves correspondingly greater expenses which must be borne by the Portfolio and its shareholders, and is also likely to result in short-term capital gains taxable to shareholders.

Underlying ETF Risk.  The Portfolio may invest in Underlying ETFs subject to statutory limitations prescribed by the Investment Company Act, or exemptive relief thereunder. An investment in an Underlying ETF generally presents the same primary risks as an investment in a conventional fund (i.e., one that is not exchange-traded) that has the same investment objectives, strategies and policies. In addition, an ETF may fail to accurately track the market segment or index that underlies its investment objective; however, the market price of the Underlying ETF's shares may trade at a premium or a discount to their net asset value. The price of an Underlying ETF can fluctuate, and the Portfolio could lose money investing in an Underlying ETF.

Principal Risks of the Underlying Funds

Credit/Default Risk.  An issuer or guarantor of fixed income securities held by an Underlying Fund (which may have low credit ratings) may default on its obligation to pay interest and repay principal or default on any other obligation. Additionally, the credit quality of securities may deteriorate rapidly, which may impair an Underlying Fund's liquidity and cause significant deterioration in NAV. These risks are more pronounced in connection with an Underlying Fund's investments in non-investment grade fixed income securities.

Derivatives Risk.  An Underlying Fund's use of options, forwards, futures, swaps, structured securities and other derivative instruments may result in losses. These instruments, which may pose risks in addition to and greater than those associated with investing directly in securities, currencies or other instruments, may be illiquid or less liquid, volatile, difficult to price and leveraged so that small changes in the value of the underlying instruments may produce disproportionate losses to the Underlying Fund. Certain derivatives are also subject to counterparty risk, which is the risk that the other party in the transaction will not fulfill its contractual obligations. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with investments in more traditional securities and instruments.

Foreign and Emerging Countries Risk.  Foreign securities may be subject to risk of loss because of more or less foreign government regulation, less public information and less economic, political and social stability in the countries in which the Portfolio invests. The imposition of exchange controls, sanctions, confiscations, trade restrictions (including tariffs) and other government restrictions by the United States and other governments, or from problems in share registration, settlement or custody, may also result in losses. Foreign risk also involves the risk of negative foreign currency rate fluctuations, which may cause the value of securities denominated in such foreign currency (or other instruments through which an Underlying Fund has exposure to foreign currencies) to decline in value. Currency exchange rates may fluctuate significantly over short periods of time. These risks may be more pronounced in connection with the Underlying Fund's investments in securities of issuers located in emerging countries.

Geographic Risk.  If an Underlying Fund focuses its investments in issuers located in a particular country or region, the Underlying Fund may be subjected, to a greater extent than if investments were less focused, to the risks of volatile economic cycles and/or conditions and developments that may be particular to that country or region, such as: adverse securities markets; adverse exchange rates; adverse social, political, regulatory, economic, business, environmental or other developments; or natural disasters.

Interest Rate Risk.  When interest rates increase, fixed income securities or instruments held by an Underlying Fund will generally decline in value. Long-term fixed income securities or instruments will normally have more price volatility because of this risk than short-term fixed income securities or instruments. The risks associated with increasing rates are heightened given that interest rates are near historic lows, but may be expected to increase in the future with unpredictable effects on the markets and an Underlying Fund's investments. Fluctuations in interest rates may also affect the liquidity of fixed income securities and instruments held by an Underlying Fund.

Leverage Risk.  Borrowing and the use of derivatives may result in leverage and may make an Underlying Fund more volatile. The use of leverage may cause an Underlying Fund to liquidate portfolio positions to satisfy its obligations or to meet asset segregation requirements when it may not be advantageous to do so. The use of leverage by an Underlying Fund can substantially increase the adverse impact to which its investment portfolio may be subject.

Liquidity Risk.  An Underlying Fund may make investments that are illiquid or that may become less liquid in response to market developments or adverse investor perceptions. Illiquid investments may be more difficult to value. Liquidity risk may also refer to the risk that an Underlying Fund will not be able to pay redemption proceeds within the allowable time period because of unusual market conditions, an unusually high volume of redemption requests or other reasons. To meet redemption requests, an Underlying Fund may be forced to sell securities, at an unfavorable time and/or under unfavorable conditions. Liquidity risk may be the result of, among other things, the reduced number and capacity of traditional market participants to make a market in fixed income securities or the lack of an active market. The potential for liquidity risk may be magnified by a rising interest rate environment or other circumstances where investor redemptions from fixed income mutual funds may be higher than normal, potentially causing increased supply in the market due to selling activity.

Market Risk.  The value of the securities in which an Underlying Fund invests may go up or down in response to the prospects of individual companies, particular sectors or governments and/or general economic conditions throughout the world due to increasingly interconnected global economies and financial markets.

Mid-Cap and Small-Cap Risk.  Certain of the Underlying Funds may make investments mid-capitalization and small-capitalization companies involve greater risks than those associated with larger, more established companies. These securities may be subject to more abrupt or erratic price movements and may lack sufficient market liquidity, and these issuers often face greater business risks.

Mortgage-Backed and Other Asset-Backed Securities Risk.  Mortgage-related and other asset-backed securities are subject to certain additional risks, including "extension risk" (i.e., in periods of rising interest rates, issuers may pay principal later than expected) and "prepayment risk" (i.e., in periods of declining interest rates, issuers may pay principal more quickly than expected, causing an Underlying Fund to reinvest proceeds at lower prevailing interest rates). Mortgage-backed securities offered by non-governmental issuers are subject to other risks as well, including failures of private insurers to meet their obligations and unexpectedly high rates of default on the mortgages backing the securities. Other asset-backed securities are subject to risks similar to those associated with mortgage-backed securities, as well as risks associated with the nature and servicing of the assets backing the securities. Asset-backed securities may not have the benefit of a security interest in collateral comparable to that of mortgage assets, resulting in additional credit risk.

Non-Investment Grade Investments Risk.  Non-investment grade fixed income securities and unrated securities of comparable credit quality (commonly known as "junk bonds") are considered speculative and are subject to the increased risk of an issuer's inability to meet principal and interest payment obligations. These securities may be subject to greater price volatility due to such factors as specific issuer developments, interest rate sensitivity, negative perceptions of the junk bond markets generally and less liquidity.

Stock Risk.  Stock prices have historically risen and fallen in periodic cycles. U.S. and foreign stock markets have experienced periods of substantial price volatility in the past and may do so again in the future.

U.S. Government Securities Risk.  The U.S. government may not provide financial support to U.S. government agencies, instrumentalities or sponsored enterprises if it is not obligated to do so by law. U.S. Government Securities issued by those agencies, instrumentalities and sponsored enterprises, including those issued by the Federal National Mortgage Association ("Fannie Mae"), Federal Home Loan Mortgage Corporation ("Freddie Mac") and the Federal Home Loan Banks, are neither issued nor guaranteed by the U.S. Treasury and, therefore, are not backed by the full faith and credit of the United States. The maximum potential liability of the issuers of some U.S. Government Securities held by an Underlying Fund may greatly exceed their current resources, including any legal right to support from the U.S. Treasury. It is possible that issuers of U.S. Government Securities will not have the funds to meet their payment obligations in the future.

Risk Lose Money [Text]

rr_RiskLoseMoney

Loss of money is a risk of investing in the Portfolio.

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Portfolio is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any government agency.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

As the Portfolio has not operated for a full calendar year as of the date of the Prospectus, there is no performance information quoted for the Portfolio. Updated performance information is available at no cost at www.gsamfunds.com/performance or by calling the phone number on the back of the Prospectus.

Performance One Year or Less [Text]

rr_PerformanceOneYearOrLess

As the Portfolio has not operated for a full calendar year as of the date of the Prospectus, there is no performance information quoted for the Portfolio.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

www.gsamfunds.com/performance

Goldman Sachs Target Date 2045 Portfolio | Class A

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

5.50%

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

2.56%

Other Expenses

rr_OtherExpensesOverAssets

2.56%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

3.23%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(2.35%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.88%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 635

3 Years

rr_ExpenseExampleYear03

1,282

5 Years

rr_ExpenseExampleYear05

1,952

10 Years

rr_ExpenseExampleYear10

$ 3,733

Goldman Sachs Target Date 2045 Portfolio | Institutional

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

2.42%

Other Expenses

rr_OtherExpensesOverAssets

2.42%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

2.84%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(2.35%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.49%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 50

3 Years

rr_ExpenseExampleYear03

657

5 Years

rr_ExpenseExampleYear05

1,290

10 Years

rr_ExpenseExampleYear10

$ 2,996

Goldman Sachs Target Date 2045 Portfolio | Service

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

0.25%

All Other Expenses

rr_Component2OtherExpensesOverAssets

2.42%

Other Expenses

rr_OtherExpensesOverAssets

2.67%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

3.34%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(2.35%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.99%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 101

3 Years

rr_ExpenseExampleYear03

807

5 Years

rr_ExpenseExampleYear05

1,537

10 Years

rr_ExpenseExampleYear10

$ 3,471

Goldman Sachs Target Date 2045 Portfolio | Investor

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

2.56%

Other Expenses

rr_OtherExpensesOverAssets

2.56%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

2.98%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(2.35%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.63%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 64

3 Years

rr_ExpenseExampleYear03

699

5 Years

rr_ExpenseExampleYear05

1,360

10 Years

rr_ExpenseExampleYear10

$ 3,131

Goldman Sachs Target Date 2045 Portfolio | Class R

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.50%

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

2.56%

Other Expenses

rr_OtherExpensesOverAssets

2.56%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

3.48%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(2.35%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

1.13%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 115

3 Years

rr_ExpenseExampleYear03

849

5 Years

rr_ExpenseExampleYear05

1,606

10 Years

rr_ExpenseExampleYear10

$ 3,600

Goldman Sachs Target Date 2045 Portfolio | Class R6

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

2.41%

Other Expenses

rr_OtherExpensesOverAssets

2.41%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

2.83%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(2.35%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.48%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 49

3 Years

rr_ExpenseExampleYear03

654

5 Years

rr_ExpenseExampleYear05

1,285

10 Years

rr_ExpenseExampleYear10

$ 2,986

[1] The Portfolio’s “Other Expenses” have been restated to reflect expenses expected to be incurred during the current fiscal year.

[2] The Total Annual Portfolio Operating Expenses do not correlate to the ratios of the net and total expenses to average net assets provided in the Financial Highlights, which reflect the operating expenses of the Portfolio and do not include Acquired (Underlying) Fund Fees and Expenses.

[3] The Investment Adviser has agreed to reduce or limit “Other Expenses” (excluding acquired (underlying) fund fees and expenses, transfer agency fees and expenses, service fees, shareholder administration fees, taxes, interest, brokerage fees, expenses of shareholder meetings, litigation and indemnification, and extraordinary expenses) to 0.014% of the Portfolio’s average daily net assets. Additionally, Goldman Sachs & Co. LLC (“Goldman Sachs”), the Portfolio’s transfer agent, has agreed to waive a portion of its transfer agency fee (a component of “Other Expenses”) equal to 0.01% as an annual percentage rate of the average daily net assets attributable to Class R6 Shares of the Portfolio. These arrangements will remain in effect through at least December 29, 2018, and prior to such date, the Investment Adviser and Goldman Sachs (as applicable) may not terminate the arrangements without the approval of the Board of Trustees.

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Goldman Sachs Target Date 2050 Portfolio

Goldman Sachs Target Date 2050 Portfolio—Summary

Investment Objective

The Goldman Sachs Target Date 2050 Portfolio (the “Portfolio”) seeks to provide capital appreciation and current income consistent with its current asset allocation.

Fees and Expenses of the Portfolio

This table describes the fees and expenses that you may pay if you buy and hold shares of the Portfolio. You may qualify for sales charge discounts on purchases of Class A Shares if you invest at least $50,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 82 and in Appendix C—Additional Information About Sales Charge Variations, Waivers and Discounts on page 126 of the Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-133 of the Portfolio’s Statement of Additional Information (“SAI”).

Shareholder Fees
(fees paid directly from your investment)

Shareholder Fees - Goldman Sachs Target Date 2050 Portfolio	Class A	Institutional	Service	Investor	Class R	Class R6
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.50%	none	none	none	none	none

Annual Portfolio Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Annual Portfolio Operating Expenses - Goldman Sachs Target Date 2050 Portfolio		Class A	Institutional	Service	Investor	Class R	Class R6
Management Fees		0.25%	0.25%	0.25%	0.25%	0.25%	0.25%
Distribution and/or Service (12b-1) Fees		0.25%	none	0.25%	none	0.50%	none
Other Expenses	[1]	1.49%	1.35%	1.60%	1.49%	1.49%	1.34%
Shareholder Administration Fees		none	none	0.25%	none	none	none
All Other Expenses		1.49%	1.35%	1.35%	1.49%	1.49%	1.34%
Acquired (Underlying) Fund Fees and Expenses		0.17%	0.17%	0.17%	0.17%	0.17%	0.17%
Total Annual Portfolio Operating Expenses	[2]	2.16%	1.77%	2.27%	1.91%	2.41%	1.76%
Fee Waiver and Expense Limitation	[3]	(1.29%)	(1.29%)	(1.29%)	(1.29%)	(1.29%)	(1.29%)
Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation	[2]	0.87%	0.48%	0.98%	0.62%	1.12%	0.47%

Expense Example

This Example is intended to help you compare the cost of investing in the Portfolio with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in Class A, Institutional, Service, Investor, Class R and/or Class R6 Shares of the Portfolio for the time periods indicated and then redeem all of your Class A, Institutional, Service, Investor, Class R and/or Class R6 Shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Portfolio’s operating expenses remain the same (except that the Example incorporates the fee waiver and expense limitation arrangements for only the first year). Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example - Goldman Sachs Target Date 2050 Portfolio - USD ($)	1 Year	3 Years	5 Years	10 Years
Class A Shares	634	1,071	1,534	2,810
Institutional Shares	49	431	838	1,977
Service Shares	100	585	1,097	2,505
Investor Shares	63	475	911	2,128
Class R Shares	114	628	1,169	2,648
Class R6 Shares	48	428	833	1,966

Portfolio Turnover

The Portfolio may pay transaction costs when it buys and sells securities or instruments (i.e., “turns over” its portfolio). A high rate of portfolio turnover may result in increased transaction costs, including brokerage commissions, which must be borne by the Portfolio and its shareholders, and is also likely to result in higher short-term capital gains for taxable shareholders. These costs are not reflected in annual fund operating expenses or in the expense example above, but are reflected in the Portfolio’s performance. The Portfolio’s portfolio turnover rate for the fiscal period ended August 31, 2017 was 139% of the average value of its portfolio.

Principal Strategy

The Portfolio employs an asset allocation strategy designed for investors who plan to retire and to begin gradually withdrawing their investment from the Portfolio beginning in approximately 2050 (the "Target Date"). The Portfolio is managed for an investor planning to retire at the age of 65 on or around the Target Date.

The Portfolio generally seeks to achieve its investment objective by investing in shares of exchange-traded funds ("Underlying ETFs") and other registered investment companies (collectively, the "Underlying Funds"), according to an asset allocation strategy, developed by Madison Asset Management, LLC (the "Sub-Adviser") who is unaffiliated with the Investment Adviser, for investors planning to retire in or within a few years of 2050. Over time, the Portfolio's asset allocation will become more conservative until it reaches approximately 10-30% in equity funds and 70-90% in fixed income funds at the Target Date as illustrated in the graph below. After the Target Date, and as also illustrated in the graph below, the Portfolio's asset allocation targets are expected to remain within these approximate ranges. The graph below applies to each Goldman Sachs Target Date Portfolio identified in the Prospectus.



The asset allocation strategy is designed to reduce the volatility of investment returns in the later years while still providing the potential for higher total returns over the target period. Market conditions and the perceived value of securities will change as the investor moves across the glide path. Although the actual allocations may vary, the chart below illustrates the expected strategic asset allocation of the glide path and the tactical allocation ranges of the core asset classes and sub-asset classes.

YEARS TO TARGET DATE	35	30	25	20	15	10	5	0	–5	–10
Strategic Allocations
Equity	80%	75%	70%	65%	60%	55%	38%	20%	20%	20%
US Equity	56%	53%	49%	46%	42%	39%	26%	14%	14%	14%
Non-US Developed Equities	24%	23%	21%	20%	18%	17%	11%	6%	6%	6%
Fixed Income	20%	25%	30%	35%	40%	45%	63%	80%	80%	80%
Tactical Allocation Ranges
Equity	70-90%	65-85%	60-80%	55-75%	50-70%	45-65%	28-48%	10-30%	10-30%	10-30%
US Equity	42-81%	39-77%	36-72%	33-68%	30-63%	27-59%	17-43%	6-27%	6-27%	6-27%
Non-US Equities	7-36%	7-34%	6-32%	6-30%	5-28%	5-26%	3-19%	1-12%	1-12%	1-12%
Fixed Income	10-30%	15-35%	20-40%	25-45%	30-50%	35-55%	53-73%	70-90%	70-90%	70-90%
Sub-Asset Classes and Alternatives
Emerging Markets Equities	0-18%	0-17%	0-16%	0-15%	0-14%	0-13%	0-10%	0-6%	0-6%	0-6%
Real Estate	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%
Commodities	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%
Other Alternative Strategies	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%

Note: Above allocations may not sum to total due to rounding.

On a periodic basis, the Sub-Adviser will evaluate and may revise the Portfolio's asset allocation, including revising the asset class weightings and adding and/or removing Underlying Funds. There will be times when the perceived value of equity and/or fixed income securities are stretched (or depressed) and the opportunity to proactively protect against (or take advantage of) these opportunities necessitates an ability to deviate from the glide path's strategic target. In order to attempt to capitalize on these periodic opportunities, the Sub-Adviser established a "tactical allocation range" that allows flexibility to increase or decrease exposure from the glide path's strategic allocations. As a result, the Portfolio's equity and fixed income asset allocation targets may range within the bounds of this tactical allocation range as illustrated in the chart above depending on the Sub-Adviser's views of the appropriate mix of the Portfolio's asset allocation based on then-current economic, market or other conditions, or factors unique to the Portfolio. Certain sub-asset classes, like real estate, commodities, and other alternative strategies, may be invested in using the tactical allocation range illustrated in the table above. The Sub-Adviser may also use the tactical allocation range to invest in certain other sub-asset classes within fixed income such as: domestic high yield non-investment grade securities (commonly referred to as "junk bonds"), inflation-linked securities, securities issued by foreign corporate and governmental issuers, sovereign and corporate debt securities of issuers in emerging market countries, convertible securities, and preferred stock. The Sub-Adviser will also monitor the Underlying Funds on an ongoing basis and may increase or decrease the Portfolio's investment in one or more Underlying Funds. The Underlying Fund selections are made based on several considerations, including the Portfolio's style or asset class exposures, portfolio characteristics, risk profile, and investment process. With regard to investments in Underlying Funds that invest in debt securities, the Sub-Adviser seeks to select portfolios of securities with long-, intermediate- and short-term maturities. Although the Portfolio does not intend to concentrate its investments in a particular industry, the Portfolio may indirectly concentrate in a particular industry or group of industries through its aggregate investment in one or more Underlying Funds. The particular Underlying Funds in which the Portfolio may invest and the Portfolio's targets and ranges will change from time to time without shareholder approval or notice.

The Sub-Adviser's strategy is intended to represent a conservative investment strategy. The Sub-Adviser's expectation is that the Portfolio may participate in market appreciation during bull markets and experience something less than full participation during bear markets compared with other funds holding more speculative and volatile securities. There is no assurance that the Sub-Adviser's expectations regarding this investment strategy will be realized.

Although the Portfolio expects to pursue its investment objective utilizing its principal investment strategies regardless of market conditions, the Portfolio may invest up to 100% in money market instruments. To the extent the Portfolio engages in this temporary defensive position, the Portfolio's ability to achieve its investment objective may be diminished.

Management Process

The Investment Adviser and the Portfolio have received an exemptive order from the Securities and Exchange Commission ("SEC"). Under the exemptive order, the Investment Adviser has the ultimate responsibility, subject to oversight by the Portfolio's Board of Trustees, to oversee the Sub-Adviser and recommend its hiring, termination and replacement. The initial shareholder of the Portfolio approved the Portfolio's operation in this manner and reliance by the Portfolio on this exemptive order.

Additional Information

The Portfolio's benchmark index is the S&P Target Date To 2050 Index (the "Index").

Principal Risks of the Portfolio

Loss of money is a risk of investing in the Portfolio. An investment in the Portfolio is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation ("FDIC") or any government agency. The Portfolio should not be relied upon as a complete investment program. Stated allocations may be subject to change. There can be no assurance that the Portfolio will achieve its investment objective. Investments in the Portfolio involve substantial risks which prospective investors should consider carefully before investing. Investors should also consider, in addition to his or her age or retirement date, other factors, including the investor's risk tolerance, personal circumstances, and complete financial situation.

Asset Allocation Risk.  The Portfolio's allocations to various asset classes and to the Underlying Funds may cause the Portfolio to underperform other funds with a similar investment objective.

Expenses.  By investing in the Underlying Funds indirectly through the Portfolio, the investor will incur not only a proportionate share of the expenses of the Underlying Funds held by the Portfolio (including operating costs and investment management fees), but also expenses of the Portfolio.

Inadequate Retirement Income.  An investment in the Portfolio is not guaranteed, and the Portfolio may experience losses, including losses near, at, or after the Target Date. There is no guarantee that the Portfolio will achieve sufficient capital appreciation to provide adequate income at and through retirement. Moreover, there is no guarantee that the Portfolio's performance will keep pace with or exceed the rate of inflation, which may reduce the value of your investment over time.

Investing in the Underlying Funds.  The investments of the Portfolio may be concentrated in one or more Underlying Funds (including ETFs and other registered investment companies) subject to statutory limitations prescribed by the Investment Company Act of 1940, as amended (the "Investment Company Act"), or exemptive relief thereunder. The Portfolio's investment performance is directly related to the investment performance of the Underlying Funds it holds. The Portfolio is subject to the risk factors associated with the investments of the Underlying Funds in direct proportion to the amount of assets allocated to each. If the Portfolio has a relative concentration of its portfolio in a single Underlying Fund, it may be more susceptible to adverse developments affecting that Underlying Fund, and may be more susceptible to losses because of these developments.

Investments of the Underlying Funds.  Because the Portfolio invests in the Underlying Funds, the Portfolio's shareholders will be affected by the investment policies and practices of the Underlying Funds in direct proportion to the amount of assets the Portfolio allocates to those Underlying Funds. A strategy used by the Underlying Funds may fail to produce the intended results.

Large Shareholder Transactions Risk.  The Portfolio may experience adverse effects when certain large shareholders purchase or redeem large amounts of shares of the Portfolio. Such large shareholder redemptions may cause the Portfolio to sell portfolio securities at times when it would not otherwise do so, which may negatively impact the Portfolio's NAV and liquidity. Similarly, large Portfolio share purchases may adversely affect the Portfolio's performance to the extent that the Portfolio is delayed in investing new cash and is required to maintain a larger cash position than it ordinarily would. These transactions may also accelerate the realization of taxable income to shareholders if such sales of investments resulted in gains, and may also increase transaction costs. In addition, a large redemption could result in the Portfolio's current expenses being allocated over a smaller asset base, leading to an increase in the Portfolio's expense ratio.

Management Risk.  A strategy used by the Sub-Adviser may fail to produce the intended results.

Portfolio Turnover Rate Risk.  A high rate of portfolio turnover (100% or more) involves correspondingly greater expenses which must be borne by the Portfolio and its shareholders, and is also likely to result in short-term capital gains taxable to shareholders.

Underlying ETF Risk.  The Portfolio may invest in Underlying ETFs subject to statutory limitations prescribed by the Investment Company Act, or exemptive relief thereunder. An investment in an Underlying ETF generally presents the same primary risks as an investment in a conventional fund (i.e., one that is not exchange-traded) that has the same investment objectives, strategies and policies. In addition, an ETF may fail to accurately track the market segment or index that underlies its investment objective; however, the market price of the Underlying ETF's shares may trade at a premium or a discount to their net asset value. The price of an Underlying ETF can fluctuate, and the Portfolio could lose money investing in an Underlying ETF.

Principal Risks of the Underlying Funds

Credit/Default Risk.  An issuer or guarantor of fixed income securities held by an Underlying Fund (which may have low credit ratings) may default on its obligation to pay interest and repay principal or default on any other obligation. Additionally, the credit quality of securities may deteriorate rapidly, which may impair an Underlying Fund's liquidity and cause significant deterioration in NAV. These risks are more pronounced in connection with an Underlying Fund's investments in non-investment grade fixed income securities.

Derivatives Risk.  An Underlying Fund's use of options, forwards, futures, swaps, structured securities and other derivative instruments may result in losses. These instruments, which may pose risks in addition to and greater than those associated with investing directly in securities, currencies or other instruments, may be illiquid or less liquid, volatile, difficult to price and leveraged so that small changes in the value of the underlying instruments may produce disproportionate losses to the Underlying Fund. Certain derivatives are also subject to counterparty risk, which is the risk that the other party in the transaction will not fulfill its contractual obligations. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with investments in more traditional securities and instruments.

Foreign and Emerging Countries Risk.  Foreign securities may be subject to risk of loss because of more or less foreign government regulation, less public information and less economic, political and social stability in the countries in which the Portfolio invests. The imposition of exchange controls, sanctions, confiscations, trade restrictions (including tariffs) and other government restrictions by the United States and other governments, or from problems in share registration, settlement or custody, may also result in losses. Foreign risk also involves the risk of negative foreign currency rate fluctuations, which may cause the value of securities denominated in such foreign currency (or other instruments through which an Underlying Fund has exposure to foreign currencies) to decline in value. Currency exchange rates may fluctuate significantly over short periods of time. These risks may be more pronounced in connection with the Underlying Fund's investments in securities of issuers located in emerging countries.

Geographic Risk.  If an Underlying Fund focuses its investments in issuers located in a particular country or region, the Underlying Fund may be subjected, to a greater extent than if investments were less focused, to the risks of volatile economic cycles and/or conditions and developments that may be particular to that country or region, such as: adverse securities markets; adverse exchange rates; adverse social, political, regulatory, economic, business, environmental or other developments; or natural disasters.

Interest Rate Risk.  When interest rates increase, fixed income securities or instruments held by an Underlying Fund will generally decline in value. Long-term fixed income securities or instruments will normally have more price volatility because of this risk than short-term fixed income securities or instruments. The risks associated with increasing rates are heightened given that interest rates are near historic lows, but may be expected to increase in the future with unpredictable effects on the markets and an Underlying Fund's investments. Fluctuations in interest rates may also affect the liquidity of fixed income securities and instruments held by an Underlying Fund.

Leverage Risk.  Borrowing and the use of derivatives may result in leverage and may make an Underlying Fund more volatile. The use of leverage may cause an Underlying Fund to liquidate portfolio positions to satisfy its obligations or to meet asset segregation requirements when it may not be advantageous to do so. The use of leverage by an Underlying Fund can substantially increase the adverse impact to which its investment portfolio may be subject.

Liquidity Risk.  An Underlying Fund may make investments that are illiquid or that may become less liquid in response to market developments or adverse investor perceptions. Illiquid investments may be more difficult to value. Liquidity risk may also refer to the risk that an Underlying Fund will not be able to pay redemption proceeds within the allowable time period because of unusual market conditions, an unusually high volume of redemption requests or other reasons. To meet redemption requests, an Underlying Fund may be forced to sell securities, at an unfavorable time and/or under unfavorable conditions. Liquidity risk may be the result of, among other things, the reduced number and capacity of traditional market participants to make a market in fixed income securities or the lack of an active market. The potential for liquidity risk may be magnified by a rising interest rate environment or other circumstances where investor redemptions from fixed income mutual funds may be higher than normal, potentially causing increased supply in the market due to selling activity.

Market Risk.  The value of the securities in which an Underlying Fund invests may go up or down in response to the prospects of individual companies, particular sectors or governments and/or general economic conditions throughout the world due to increasingly interconnected global economies and financial markets.

Mid-Cap and Small-Cap Risk.  Certain of the Underlying Funds may make investments mid-capitalization and small-capitalization companies involve greater risks than those associated with larger, more established companies. These securities may be subject to more abrupt or erratic price movements and may lack sufficient market liquidity, and these issuers often face greater business risks.

Mortgage-Backed and Other Asset-Backed Securities Risk.  Mortgage-related and other asset-backed securities are subject to certain additional risks, including "extension risk" (i.e., in periods of rising interest rates, issuers may pay principal later than expected) and "prepayment risk" (i.e., in periods of declining interest rates, issuers may pay principal more quickly than expected, causing an Underlying Fund to reinvest proceeds at lower prevailing interest rates). Mortgage-backed securities offered by non-governmental issuers are subject to other risks as well, including failures of private insurers to meet their obligations and unexpectedly high rates of default on the mortgages backing the securities. Other asset-backed securities are subject to risks similar to those associated with mortgage-backed securities, as well as risks associated with the nature and servicing of the assets backing the securities. Asset-backed securities may not have the benefit of a security interest in collateral comparable to that of mortgage assets, resulting in additional credit risk.

Non-Investment Grade Investments Risk.  Non-investment grade fixed income securities and unrated securities of comparable credit quality (commonly known as "junk bonds") are considered speculative and are subject to the increased risk of an issuer's inability to meet principal and interest payment obligations. These securities may be subject to greater price volatility due to such factors as specific issuer developments, interest rate sensitivity, negative perceptions of the junk bond markets generally and less liquidity.

Stock Risk.  Stock prices have historically risen and fallen in periodic cycles. U.S. and foreign stock markets have experienced periods of substantial price volatility in the past and may do so again in the future.

U.S. Government Securities Risk.  The U.S. government may not provide financial support to U.S. government agencies, instrumentalities or sponsored enterprises if it is not obligated to do so by law. U.S. Government Securities issued by those agencies, instrumentalities and sponsored enterprises, including those issued by the Federal National Mortgage Association ("Fannie Mae"), Federal Home Loan Mortgage Corporation ("Freddie Mac") and the Federal Home Loan Banks, are neither issued nor guaranteed by the U.S. Treasury and, therefore, are not backed by the full faith and credit of the United States. The maximum potential liability of the issuers of some U.S. Government Securities held by an Underlying Fund may greatly exceed their current resources, including any legal right to support from the U.S. Treasury. It is possible that issuers of U.S. Government Securities will not have the funds to meet their payment obligations in the future.

Performance

Effective August 22, 2016, the Madison Target Retirement 2050 Fund, a series of Madison Funds (the “Predecessor Fund”), was reorganized into the Portfolio. As accounting successor to the Predecessor Fund, the Portfolio has assumed the Predecessor Fund’s historical performance. Therefore, the performance information shown below for periods prior to August 22, 2016 is that of the Predecessor Fund. The returns presented for the Portfolio for periods prior to August 29, 2014 reflect the performance of the Madison Target Retirement 2050 Fund’s Class I Shares, a series of Ultra Series Fund (the “Ultra Predecessor Fund”). As of August 29, 2014, the inception date of the Predecessor Fund, the Ultra Predecessor Fund exchanged in kind substantially all of its portfolio holdings for Class R6 shares of the Predecessor Fund. As a result, the Predecessor Fund assumed the performance of the Ultra Predecessor Fund.

The bar chart and table below provide an indication of the risks of investing in the Portfolio by showing: (a) changes in the performance of the Portfolio’s Class R6 Shares from year to year; and (b) how the average annual total returns of the Portfolio’s Class R6 Shares compare to those of a broad-based securities market index. The Portfolio has different fees and expenses from those of the Predecessor Fund and would, therefore, have had different performance results. Past performance of the Portfolio, before and after taxes, is not necessarily an indication of how the Portfolio will perform in the future. Performance information for the Portfolio is available at no cost at www.gsamfunds.com/performance or by calling the appropriate phone number on the back cover of the Prospectus.

Because the Predecessor Fund did not offer Class A, Institutional, Service, Investor and Class R Shares, and the Class A, Institutional, Service, Investor and Class R Shares of the Portfolio have not operated for a full calendar year as of the date of the Prospectus, no performance information is shown for those share classes.

Performance reflects applicable fee waivers and/or expense limitations in effect during the periods shown.

TOTAL RETURN CALENDAR YEAR (CLASS R6)

The total return for Class R6 Shares for the 9-month period ended September 30, 2017 was 12.36%.

Best Quarter
Q1 ‘12          +8.01%

Worst Quarter
Q3 ‘15          –6.47%

AVERAGE ANNUAL TOTAL RETURNS

For the period ended December 31, 2016

Average Annual Total Returns - Goldman Sachs Target Date 2050 Portfolio	1 Year	5 Years	Since Inception	Inception Date
Class R6	9.41%	10.08%	8.14%	Jan. 03, 2011
Class R6 | Returns After Taxes on Distributions	7.51%	9.69%	7.82%	Jan. 03, 2011
Class R6 | Returns After Taxes on Distributions and Sale of Portfolio Shares	6.28%	7.93%	6.41%	Jan. 03, 2011
S&P Target Date To 2050 Index (reflects no deduction for sales charges, account fees, expenses or taxes)	9.41%	9.98%	7.53%

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. In addition, the after-tax returns shown are not relevant to investors who hold Portfolio shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts.

[1] The Portfolio’s “Other Expenses” have been restated to reflect expenses expected to be incurred during the current fiscal year.

[2] The Total Annual Portfolio Operating Expenses do not correlate to the ratios of the net and total expenses to average net assets provided in the Financial Highlights, which reflect the operating expenses of the Portfolio and do not include Acquired (Underlying) Fund Fees and Expenses.

[3] The Investment Adviser has agreed to reduce or limit “Other Expenses” (excluding acquired (underlying) fund fees and expenses, transfer agency fees and expenses, service fees, shareholder administration fees, taxes, interest, brokerage fees, expenses of shareholder meetings, litigation and indemnification, and extraordinary expenses) to 0.024% of the Portfolio’s average daily net assets. Additionally, Goldman Sachs & Co. LLC (“Goldman Sachs”), the Portfolio’s transfer agent, has agreed to waive a portion of its transfer agency fee (a component of “Other Expenses”) equal to 0.01% as an annual percentage rate of the average daily net assets attributable to Class R6 Shares of the Portfolio. These arrangements will remain in effect through at least December 29, 2018, and prior to such date, the Investment Adviser and Goldman Sachs (as applicable) may not terminate the arrangements without the approval of the Board of Trustees.

XML

Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Registrant Name

dei_EntityRegistrantName

Goldman Sachs Trust II

Prospectus Date

rr_ProspectusDate

May 21, 2018

Goldman Sachs Target Date 2050 Portfolio

Risk/Return:

rr_RiskReturnAbstract

Risk/Return [Heading]

rr_RiskReturnHeading

Goldman Sachs Target Date 2050 Portfolio—Summary

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Goldman Sachs Target Date 2050 Portfolio (the “Portfolio”) seeks to provide capital appreciation and current income consistent with its current asset allocation.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses of the Portfolio

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 Portfolio. You may qualify for sales charge discounts on purchases of Class A Shares if you invest at least $50,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 82 and in Appendix C—Additional Information About Sales Charge Variations, Waivers and Discounts on page 126 of the Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-133 of the Portfolio’s Statement of Additional Information (“SAI”).

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees
(fees paid directly from your investment)

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Portfolio Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

December 29, 2018

Portfolio Turnover [Heading]

rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block]

rr_PortfolioTurnoverTextBlock

The Portfolio may pay transaction costs when it buys and sells securities or instruments (i.e., “turns over” its portfolio). A high rate of portfolio turnover may result in increased transaction costs, including brokerage commissions, which must be borne by the Portfolio and its shareholders, and is also likely to result in higher short-term capital gains for taxable shareholders. These costs are not reflected in annual fund operating expenses or in the expense example above, but are reflected in the Portfolio’s performance. The Portfolio’s portfolio turnover rate for the fiscal period ended August 31, 2017 was 139% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

139.00%

Expense Breakpoint Discounts [Text]

rr_ExpenseBreakpointDiscounts

You may qualify for sales charge discounts on purchases of Class A Shares if you invest at least $50,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 82 and in Appendix C—Additional Information About Sales Charge Variations, Waivers and Discounts on page 126 of the Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-133 of the Portfolio’s Statement of Additional Information (“SAI”).

Expense Breakpoint, Minimum Investment Required [Amount]

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

$ 50,000

Expenses Restated to Reflect Current [Text]

rr_ExpensesRestatedToReflectCurrent

The Portfolio’s “Other Expenses” have been restated to reflect expenses expected to be incurred during the current fiscal year.

Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text]

rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees

The Total Annual Portfolio Operating Expenses do not correlate to the ratios of the net and total expenses to average net assets provided in the Financial Highlights, which reflect the operating expenses of the Portfolio and do not include Acquired (Underlying) Fund Fees and Expenses.

Expense Example [Heading]

rr_ExpenseExampleHeading

Expense Example

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This Example is intended to help you compare the cost of investing in the Portfolio with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in Class A, Institutional, Service, Investor, Class R and/or Class R6 Shares of the Portfolio for the time periods indicated and then redeem all of your Class A, Institutional, Service, Investor, Class R and/or Class R6 Shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Portfolio’s operating expenses remain the same (except that the Example incorporates the fee waiver and expense limitation arrangements for only the first year). Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Strategy [Heading]

rr_StrategyHeading

Principal Strategy

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

The Portfolio employs an asset allocation strategy designed for investors who plan to retire and to begin gradually withdrawing their investment from the Portfolio beginning in approximately 2050 (the "Target Date"). The Portfolio is managed for an investor planning to retire at the age of 65 on or around the Target Date.

The Portfolio generally seeks to achieve its investment objective by investing in shares of exchange-traded funds ("Underlying ETFs") and other registered investment companies (collectively, the "Underlying Funds"), according to an asset allocation strategy, developed by Madison Asset Management, LLC (the "Sub-Adviser") who is unaffiliated with the Investment Adviser, for investors planning to retire in or within a few years of 2050. Over time, the Portfolio's asset allocation will become more conservative until it reaches approximately 10-30% in equity funds and 70-90% in fixed income funds at the Target Date as illustrated in the graph below. After the Target Date, and as also illustrated in the graph below, the Portfolio's asset allocation targets are expected to remain within these approximate ranges. The graph below applies to each Goldman Sachs Target Date Portfolio identified in the Prospectus.



The asset allocation strategy is designed to reduce the volatility of investment returns in the later years while still providing the potential for higher total returns over the target period. Market conditions and the perceived value of securities will change as the investor moves across the glide path. Although the actual allocations may vary, the chart below illustrates the expected strategic asset allocation of the glide path and the tactical allocation ranges of the core asset classes and sub-asset classes.

YEARS TO TARGET DATE	35	30	25	20	15	10	5	0	–5	–10
Strategic Allocations
Equity	80%	75%	70%	65%	60%	55%	38%	20%	20%	20%
US Equity	56%	53%	49%	46%	42%	39%	26%	14%	14%	14%
Non-US Developed Equities	24%	23%	21%	20%	18%	17%	11%	6%	6%	6%
Fixed Income	20%	25%	30%	35%	40%	45%	63%	80%	80%	80%
Tactical Allocation Ranges
Equity	70-90%	65-85%	60-80%	55-75%	50-70%	45-65%	28-48%	10-30%	10-30%	10-30%
US Equity	42-81%	39-77%	36-72%	33-68%	30-63%	27-59%	17-43%	6-27%	6-27%	6-27%
Non-US Equities	7-36%	7-34%	6-32%	6-30%	5-28%	5-26%	3-19%	1-12%	1-12%	1-12%
Fixed Income	10-30%	15-35%	20-40%	25-45%	30-50%	35-55%	53-73%	70-90%	70-90%	70-90%
Sub-Asset Classes and Alternatives
Emerging Markets Equities	0-18%	0-17%	0-16%	0-15%	0-14%	0-13%	0-10%	0-6%	0-6%	0-6%
Real Estate	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%
Commodities	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%
Other Alternative Strategies	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%

Note: Above allocations may not sum to total due to rounding.

On a periodic basis, the Sub-Adviser will evaluate and may revise the Portfolio's asset allocation, including revising the asset class weightings and adding and/or removing Underlying Funds. There will be times when the perceived value of equity and/or fixed income securities are stretched (or depressed) and the opportunity to proactively protect against (or take advantage of) these opportunities necessitates an ability to deviate from the glide path's strategic target. In order to attempt to capitalize on these periodic opportunities, the Sub-Adviser established a "tactical allocation range" that allows flexibility to increase or decrease exposure from the glide path's strategic allocations. As a result, the Portfolio's equity and fixed income asset allocation targets may range within the bounds of this tactical allocation range as illustrated in the chart above depending on the Sub-Adviser's views of the appropriate mix of the Portfolio's asset allocation based on then-current economic, market or other conditions, or factors unique to the Portfolio. Certain sub-asset classes, like real estate, commodities, and other alternative strategies, may be invested in using the tactical allocation range illustrated in the table above. The Sub-Adviser may also use the tactical allocation range to invest in certain other sub-asset classes within fixed income such as: domestic high yield non-investment grade securities (commonly referred to as "junk bonds"), inflation-linked securities, securities issued by foreign corporate and governmental issuers, sovereign and corporate debt securities of issuers in emerging market countries, convertible securities, and preferred stock. The Sub-Adviser will also monitor the Underlying Funds on an ongoing basis and may increase or decrease the Portfolio's investment in one or more Underlying Funds. The Underlying Fund selections are made based on several considerations, including the Portfolio's style or asset class exposures, portfolio characteristics, risk profile, and investment process. With regard to investments in Underlying Funds that invest in debt securities, the Sub-Adviser seeks to select portfolios of securities with long-, intermediate- and short-term maturities. Although the Portfolio does not intend to concentrate its investments in a particular industry, the Portfolio may indirectly concentrate in a particular industry or group of industries through its aggregate investment in one or more Underlying Funds. The particular Underlying Funds in which the Portfolio may invest and the Portfolio's targets and ranges will change from time to time without shareholder approval or notice.

The Sub-Adviser's strategy is intended to represent a conservative investment strategy. The Sub-Adviser's expectation is that the Portfolio may participate in market appreciation during bull markets and experience something less than full participation during bear markets compared with other funds holding more speculative and volatile securities. There is no assurance that the Sub-Adviser's expectations regarding this investment strategy will be realized.

Although the Portfolio expects to pursue its investment objective utilizing its principal investment strategies regardless of market conditions, the Portfolio may invest up to 100% in money market instruments. To the extent the Portfolio engages in this temporary defensive position, the Portfolio's ability to achieve its investment objective may be diminished.

Management Process

The Investment Adviser and the Portfolio have received an exemptive order from the Securities and Exchange Commission ("SEC"). Under the exemptive order, the Investment Adviser has the ultimate responsibility, subject to oversight by the Portfolio's Board of Trustees, to oversee the Sub-Adviser and recommend its hiring, termination and replacement. The initial shareholder of the Portfolio approved the Portfolio's operation in this manner and reliance by the Portfolio on this exemptive order.

Additional Information

The Portfolio's benchmark index is the S&P Target Date To 2050 Index (the "Index").

Risk [Heading]

rr_RiskHeading

Principal Risks of the Portfolio

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

Loss of money is a risk of investing in the Portfolio. An investment in the Portfolio is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation ("FDIC") or any government agency. The Portfolio should not be relied upon as a complete investment program. Stated allocations may be subject to change. There can be no assurance that the Portfolio will achieve its investment objective. Investments in the Portfolio involve substantial risks which prospective investors should consider carefully before investing. Investors should also consider, in addition to his or her age or retirement date, other factors, including the investor's risk tolerance, personal circumstances, and complete financial situation.

Asset Allocation Risk.  The Portfolio's allocations to various asset classes and to the Underlying Funds may cause the Portfolio to underperform other funds with a similar investment objective.

Expenses.  By investing in the Underlying Funds indirectly through the Portfolio, the investor will incur not only a proportionate share of the expenses of the Underlying Funds held by the Portfolio (including operating costs and investment management fees), but also expenses of the Portfolio.

Inadequate Retirement Income.  An investment in the Portfolio is not guaranteed, and the Portfolio may experience losses, including losses near, at, or after the Target Date. There is no guarantee that the Portfolio will achieve sufficient capital appreciation to provide adequate income at and through retirement. Moreover, there is no guarantee that the Portfolio's performance will keep pace with or exceed the rate of inflation, which may reduce the value of your investment over time.

Investing in the Underlying Funds.  The investments of the Portfolio may be concentrated in one or more Underlying Funds (including ETFs and other registered investment companies) subject to statutory limitations prescribed by the Investment Company Act of 1940, as amended (the "Investment Company Act"), or exemptive relief thereunder. The Portfolio's investment performance is directly related to the investment performance of the Underlying Funds it holds. The Portfolio is subject to the risk factors associated with the investments of the Underlying Funds in direct proportion to the amount of assets allocated to each. If the Portfolio has a relative concentration of its portfolio in a single Underlying Fund, it may be more susceptible to adverse developments affecting that Underlying Fund, and may be more susceptible to losses because of these developments.

Investments of the Underlying Funds.  Because the Portfolio invests in the Underlying Funds, the Portfolio's shareholders will be affected by the investment policies and practices of the Underlying Funds in direct proportion to the amount of assets the Portfolio allocates to those Underlying Funds. A strategy used by the Underlying Funds may fail to produce the intended results.

Large Shareholder Transactions Risk.  The Portfolio may experience adverse effects when certain large shareholders purchase or redeem large amounts of shares of the Portfolio. Such large shareholder redemptions may cause the Portfolio to sell portfolio securities at times when it would not otherwise do so, which may negatively impact the Portfolio's NAV and liquidity. Similarly, large Portfolio share purchases may adversely affect the Portfolio's performance to the extent that the Portfolio is delayed in investing new cash and is required to maintain a larger cash position than it ordinarily would. These transactions may also accelerate the realization of taxable income to shareholders if such sales of investments resulted in gains, and may also increase transaction costs. In addition, a large redemption could result in the Portfolio's current expenses being allocated over a smaller asset base, leading to an increase in the Portfolio's expense ratio.

Management Risk.  A strategy used by the Sub-Adviser may fail to produce the intended results.

Portfolio Turnover Rate Risk.  A high rate of portfolio turnover (100% or more) involves correspondingly greater expenses which must be borne by the Portfolio and its shareholders, and is also likely to result in short-term capital gains taxable to shareholders.

Underlying ETF Risk.  The Portfolio may invest in Underlying ETFs subject to statutory limitations prescribed by the Investment Company Act, or exemptive relief thereunder. An investment in an Underlying ETF generally presents the same primary risks as an investment in a conventional fund (i.e., one that is not exchange-traded) that has the same investment objectives, strategies and policies. In addition, an ETF may fail to accurately track the market segment or index that underlies its investment objective; however, the market price of the Underlying ETF's shares may trade at a premium or a discount to their net asset value. The price of an Underlying ETF can fluctuate, and the Portfolio could lose money investing in an Underlying ETF.

Principal Risks of the Underlying Funds

Credit/Default Risk.  An issuer or guarantor of fixed income securities held by an Underlying Fund (which may have low credit ratings) may default on its obligation to pay interest and repay principal or default on any other obligation. Additionally, the credit quality of securities may deteriorate rapidly, which may impair an Underlying Fund's liquidity and cause significant deterioration in NAV. These risks are more pronounced in connection with an Underlying Fund's investments in non-investment grade fixed income securities.

Derivatives Risk.  An Underlying Fund's use of options, forwards, futures, swaps, structured securities and other derivative instruments may result in losses. These instruments, which may pose risks in addition to and greater than those associated with investing directly in securities, currencies or other instruments, may be illiquid or less liquid, volatile, difficult to price and leveraged so that small changes in the value of the underlying instruments may produce disproportionate losses to the Underlying Fund. Certain derivatives are also subject to counterparty risk, which is the risk that the other party in the transaction will not fulfill its contractual obligations. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with investments in more traditional securities and instruments.

Foreign and Emerging Countries Risk.  Foreign securities may be subject to risk of loss because of more or less foreign government regulation, less public information and less economic, political and social stability in the countries in which the Portfolio invests. The imposition of exchange controls, sanctions, confiscations, trade restrictions (including tariffs) and other government restrictions by the United States and other governments, or from problems in share registration, settlement or custody, may also result in losses. Foreign risk also involves the risk of negative foreign currency rate fluctuations, which may cause the value of securities denominated in such foreign currency (or other instruments through which an Underlying Fund has exposure to foreign currencies) to decline in value. Currency exchange rates may fluctuate significantly over short periods of time. These risks may be more pronounced in connection with the Underlying Fund's investments in securities of issuers located in emerging countries.

Geographic Risk.  If an Underlying Fund focuses its investments in issuers located in a particular country or region, the Underlying Fund may be subjected, to a greater extent than if investments were less focused, to the risks of volatile economic cycles and/or conditions and developments that may be particular to that country or region, such as: adverse securities markets; adverse exchange rates; adverse social, political, regulatory, economic, business, environmental or other developments; or natural disasters.

Interest Rate Risk.  When interest rates increase, fixed income securities or instruments held by an Underlying Fund will generally decline in value. Long-term fixed income securities or instruments will normally have more price volatility because of this risk than short-term fixed income securities or instruments. The risks associated with increasing rates are heightened given that interest rates are near historic lows, but may be expected to increase in the future with unpredictable effects on the markets and an Underlying Fund's investments. Fluctuations in interest rates may also affect the liquidity of fixed income securities and instruments held by an Underlying Fund.

Leverage Risk.  Borrowing and the use of derivatives may result in leverage and may make an Underlying Fund more volatile. The use of leverage may cause an Underlying Fund to liquidate portfolio positions to satisfy its obligations or to meet asset segregation requirements when it may not be advantageous to do so. The use of leverage by an Underlying Fund can substantially increase the adverse impact to which its investment portfolio may be subject.

Liquidity Risk.  An Underlying Fund may make investments that are illiquid or that may become less liquid in response to market developments or adverse investor perceptions. Illiquid investments may be more difficult to value. Liquidity risk may also refer to the risk that an Underlying Fund will not be able to pay redemption proceeds within the allowable time period because of unusual market conditions, an unusually high volume of redemption requests or other reasons. To meet redemption requests, an Underlying Fund may be forced to sell securities, at an unfavorable time and/or under unfavorable conditions. Liquidity risk may be the result of, among other things, the reduced number and capacity of traditional market participants to make a market in fixed income securities or the lack of an active market. The potential for liquidity risk may be magnified by a rising interest rate environment or other circumstances where investor redemptions from fixed income mutual funds may be higher than normal, potentially causing increased supply in the market due to selling activity.

Market Risk.  The value of the securities in which an Underlying Fund invests may go up or down in response to the prospects of individual companies, particular sectors or governments and/or general economic conditions throughout the world due to increasingly interconnected global economies and financial markets.

Mid-Cap and Small-Cap Risk.  Certain of the Underlying Funds may make investments mid-capitalization and small-capitalization companies involve greater risks than those associated with larger, more established companies. These securities may be subject to more abrupt or erratic price movements and may lack sufficient market liquidity, and these issuers often face greater business risks.

Mortgage-Backed and Other Asset-Backed Securities Risk.  Mortgage-related and other asset-backed securities are subject to certain additional risks, including "extension risk" (i.e., in periods of rising interest rates, issuers may pay principal later than expected) and "prepayment risk" (i.e., in periods of declining interest rates, issuers may pay principal more quickly than expected, causing an Underlying Fund to reinvest proceeds at lower prevailing interest rates). Mortgage-backed securities offered by non-governmental issuers are subject to other risks as well, including failures of private insurers to meet their obligations and unexpectedly high rates of default on the mortgages backing the securities. Other asset-backed securities are subject to risks similar to those associated with mortgage-backed securities, as well as risks associated with the nature and servicing of the assets backing the securities. Asset-backed securities may not have the benefit of a security interest in collateral comparable to that of mortgage assets, resulting in additional credit risk.

Non-Investment Grade Investments Risk.  Non-investment grade fixed income securities and unrated securities of comparable credit quality (commonly known as "junk bonds") are considered speculative and are subject to the increased risk of an issuer's inability to meet principal and interest payment obligations. These securities may be subject to greater price volatility due to such factors as specific issuer developments, interest rate sensitivity, negative perceptions of the junk bond markets generally and less liquidity.

Stock Risk.  Stock prices have historically risen and fallen in periodic cycles. U.S. and foreign stock markets have experienced periods of substantial price volatility in the past and may do so again in the future.

U.S. Government Securities Risk.  The U.S. government may not provide financial support to U.S. government agencies, instrumentalities or sponsored enterprises if it is not obligated to do so by law. U.S. Government Securities issued by those agencies, instrumentalities and sponsored enterprises, including those issued by the Federal National Mortgage Association ("Fannie Mae"), Federal Home Loan Mortgage Corporation ("Freddie Mac") and the Federal Home Loan Banks, are neither issued nor guaranteed by the U.S. Treasury and, therefore, are not backed by the full faith and credit of the United States. The maximum potential liability of the issuers of some U.S. Government Securities held by an Underlying Fund may greatly exceed their current resources, including any legal right to support from the U.S. Treasury. It is possible that issuers of U.S. Government Securities will not have the funds to meet their payment obligations in the future.

Risk Lose Money [Text]

rr_RiskLoseMoney

Loss of money is a risk of investing in the Portfolio.

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Portfolio is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any government agency.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

Effective August 22, 2016, the Madison Target Retirement 2050 Fund, a series of Madison Funds (the “Predecessor Fund”), was reorganized into the Portfolio. As accounting successor to the Predecessor Fund, the Portfolio has assumed the Predecessor Fund’s historical performance. Therefore, the performance information shown below for periods prior to August 22, 2016 is that of the Predecessor Fund. The returns presented for the Portfolio for periods prior to August 29, 2014 reflect the performance of the Madison Target Retirement 2050 Fund’s Class I Shares, a series of Ultra Series Fund (the “Ultra Predecessor Fund”). As of August 29, 2014, the inception date of the Predecessor Fund, the Ultra Predecessor Fund exchanged in kind substantially all of its portfolio holdings for Class R6 shares of the Predecessor Fund. As a result, the Predecessor Fund assumed the performance of the Ultra Predecessor Fund.

The bar chart and table below provide an indication of the risks of investing in the Portfolio by showing: (a) changes in the performance of the Portfolio’s Class R6 Shares from year to year; and (b) how the average annual total returns of the Portfolio’s Class R6 Shares compare to those of a broad-based securities market index. The Portfolio has different fees and expenses from those of the Predecessor Fund and would, therefore, have had different performance results. Past performance of the Portfolio, before and after taxes, is not necessarily an indication of how the Portfolio will perform in the future. Performance information for the Portfolio is available at no cost at www.gsamfunds.com/performance or by calling the appropriate phone number on the back cover of the Prospectus.

Because the Predecessor Fund did not offer Class A, Institutional, Service, Investor and Class R Shares, and the Class A, Institutional, Service, Investor and Class R Shares of the Portfolio have not operated for a full calendar year as of the date of the Prospectus, no performance information is shown for those share classes.

Performance reflects applicable fee waivers and/or expense limitations in effect during the periods shown.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The bar chart and table below provide an indication of the risks of investing in the Portfolio by showing: (a) changes in the performance of the Portfolio’s Class R6 Shares from year to year; and (b) how the average annual total returns of the Portfolio’s Class R6 Shares compare to those of a broad-based securities market index.

Performance One Year or Less [Text]

rr_PerformanceOneYearOrLess

Because the Predecessor Fund did not offer Class A, Institutional, Service, Investor and Class R Shares, and the Class A, Institutional, Service, Investor and Class R Shares of the Portfolio have not operated for a full calendar year as of the date of the Prospectus, no performance information is shown for those share classes.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

www.gsamfunds.com/performance

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Past performance of the Portfolio, before and after taxes, is not necessarily an indication of how the Portfolio will perform in the future.

Bar Chart [Heading]

rr_BarChartHeading

TOTAL RETURN CALENDAR YEAR (CLASS R6)

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

The total return for Class R6 Shares for the 9-month period ended September 30, 2017 was 12.36%.

Best Quarter
Q1 ‘12          +8.01%

Worst Quarter
Q3 ‘15          –6.47%

Performance Table Heading

rr_PerformanceTableHeading

AVERAGE ANNUAL TOTAL RETURNS

For the period ended December 31, 2016

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 an investor’s tax situation and may differ from those shown. In addition, the after-tax returns shown are not relevant to investors who hold Portfolio shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts.

Performance Table Narrative

rr_PerformanceTableNarrativeTextBlock

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. In addition, the after-tax returns shown are not relevant to investors who hold Portfolio shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts.

Goldman Sachs Target Date 2050 Portfolio | Class A

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

5.50%

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

1.49%

Other Expenses

rr_OtherExpensesOverAssets

1.49%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

2.16%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(1.29%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.87%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 634

3 Years

rr_ExpenseExampleYear03

1,071

5 Years

rr_ExpenseExampleYear05

1,534

10 Years

rr_ExpenseExampleYear10

$ 2,810

Goldman Sachs Target Date 2050 Portfolio | Institutional

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

1.35%

Other Expenses

rr_OtherExpensesOverAssets

1.35%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

1.77%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(1.29%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.48%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 49

3 Years

rr_ExpenseExampleYear03

431

5 Years

rr_ExpenseExampleYear05

838

10 Years

rr_ExpenseExampleYear10

$ 1,977

Goldman Sachs Target Date 2050 Portfolio | Service

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

0.25%

All Other Expenses

rr_Component2OtherExpensesOverAssets

1.35%

Other Expenses

rr_OtherExpensesOverAssets

1.60%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

2.27%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(1.29%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.98%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 100

3 Years

rr_ExpenseExampleYear03

585

5 Years

rr_ExpenseExampleYear05

1,097

10 Years

rr_ExpenseExampleYear10

$ 2,505

Goldman Sachs Target Date 2050 Portfolio | Investor

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

1.49%

Other Expenses

rr_OtherExpensesOverAssets

1.49%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

1.91%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(1.29%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.62%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 63

3 Years

rr_ExpenseExampleYear03

475

5 Years

rr_ExpenseExampleYear05

911

10 Years

rr_ExpenseExampleYear10

$ 2,128

Goldman Sachs Target Date 2050 Portfolio | Class R

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.50%

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

1.49%

Other Expenses

rr_OtherExpensesOverAssets

1.49%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

2.41%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(1.29%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

1.12%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 114

3 Years

rr_ExpenseExampleYear03

628

5 Years

rr_ExpenseExampleYear05

1,169

10 Years

rr_ExpenseExampleYear10

$ 2,648

Goldman Sachs Target Date 2050 Portfolio | Class R6

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

1.34%

Other Expenses

rr_OtherExpensesOverAssets

1.34%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

1.76%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(1.29%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.47%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 48

3 Years

rr_ExpenseExampleYear03

428

5 Years

rr_ExpenseExampleYear05

833

10 Years

rr_ExpenseExampleYear10

$ 1,966

2012

rr_AnnualReturn2012

12.12%

2013

rr_AnnualReturn2013

22.78%

2014

rr_AnnualReturn2014

8.47%

2015

rr_AnnualReturn2015

(1.04%)

2016

rr_AnnualReturn2016

9.41%

Year to Date Return, Label

rr_YearToDateReturnLabel

total return

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2017

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

12.36%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Mar. 31, 2012

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

8.01%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Sep. 30, 2015

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(6.47%)

1 Year

rr_AverageAnnualReturnYear01

9.41%

5 Years

rr_AverageAnnualReturnYear05

10.08%

Since Inception

rr_AverageAnnualReturnSinceInception

8.14%

Inception Date

rr_AverageAnnualReturnInceptionDate

Jan. 03, 2011

Goldman Sachs Target Date 2050 Portfolio | Returns After Taxes on Distributions | Class R6

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

7.51%

5 Years

rr_AverageAnnualReturnYear05

9.69%

Since Inception

rr_AverageAnnualReturnSinceInception

7.82%

Inception Date

rr_AverageAnnualReturnInceptionDate

Jan. 03, 2011

Goldman Sachs Target Date 2050 Portfolio | Returns After Taxes on Distributions and Sale of Portfolio Shares | Class R6

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

6.28%

5 Years

rr_AverageAnnualReturnYear05

7.93%

Since Inception

rr_AverageAnnualReturnSinceInception

6.41%

Inception Date

rr_AverageAnnualReturnInceptionDate

Jan. 03, 2011

Goldman Sachs Target Date 2050 Portfolio | S&P Target Date To 2050 Index (reflects no deduction for sales charges, account fees, expenses or taxes)

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

9.41%

5 Years

rr_AverageAnnualReturnYear05

9.98%

Since Inception

rr_AverageAnnualReturnSinceInception

7.53%

[1] The Portfolio’s “Other Expenses” have been restated to reflect expenses expected to be incurred during the current fiscal year.

[2] The Total Annual Portfolio Operating Expenses do not correlate to the ratios of the net and total expenses to average net assets provided in the Financial Highlights, which reflect the operating expenses of the Portfolio and do not include Acquired (Underlying) Fund Fees and Expenses.

[3] The Investment Adviser has agreed to reduce or limit “Other Expenses” (excluding acquired (underlying) fund fees and expenses, transfer agency fees and expenses, service fees, shareholder administration fees, taxes, interest, brokerage fees, expenses of shareholder meetings, litigation and indemnification, and extraordinary expenses) to 0.024% of the Portfolio’s average daily net assets. Additionally, Goldman Sachs & Co. LLC (“Goldman Sachs”), the Portfolio’s transfer agent, has agreed to waive a portion of its transfer agency fee (a component of “Other Expenses”) equal to 0.01% as an annual percentage rate of the average daily net assets attributable to Class R6 Shares of the Portfolio. These arrangements will remain in effect through at least December 29, 2018, and prior to such date, the Investment Adviser and Goldman Sachs (as applicable) may not terminate the arrangements without the approval of the Board of Trustees.

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Goldman Sachs Target Date 2055 Portfolio

Goldman Sachs Target Date 2055 Portfolio—Summary

Investment Objective

The Goldman Sachs Target Date 2055 Portfolio (the “Portfolio”) seeks to provide capital appreciation and current income consistent with its current asset allocation.

Fees and Expenses of the Portfolio

This table describes the fees and expenses that you may pay if you buy and hold shares of the Portfolio. You may qualify for sales charge discounts on purchases of Class A Shares if you invest at least $50,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 82 and in Appendix C—Additional Information About Sales Charge Variations, Waivers and Discounts on page 126 of the Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-133 of the Portfolio’s Statement of Additional Information (“SAI”).

Shareholder Fees
(fees paid directly from your investment)

Shareholder Fees - Goldman Sachs Target Date 2055 Portfolio	Class A	Institutional	Service	Investor	Class R	Class R6
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.50%	none	none	none	none	none

Annual Portfolio Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Annual Portfolio Operating Expenses - Goldman Sachs Target Date 2055 Portfolio		Class A	Institutional	Service	Investor	Class R	Class R6
Management Fees		0.25%	0.25%	0.25%	0.25%	0.25%	0.25%
Distribution and/or Service (12b-1) Fees		0.25%	none	0.25%	none	0.50%	none
Other Expenses	[1]	2.77%	2.63%	2.88%	2.77%	2.77%	2.62%
Shareholder Administration Fees		none	none	0.25%	none	none	none
All Other Expenses		2.77%	2.63%	2.63%	2.77%	2.77%	2.62%
Acquired (Underlying) Fund Fees and Expenses		0.17%	0.17%	0.17%	0.17%	0.17%	0.17%
Total Annual Portfolio Operating Expenses	[2]	3.44%	3.05%	3.55%	3.19%	3.69%	3.04%
Fee Waiver and Expense Limitation	[3]	(2.58%)	(2.58%)	(2.58%)	(2.58%)	(2.58%)	(2.58%)
Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation	[2]	0.86%	0.47%	0.97%	0.61%	1.11%	0.46%

Expense Example

This Example is intended to help you compare the cost of investing in the Portfolio with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in Class A, Institutional, Service, Investor, Class R and/or Class R6 Shares of the Portfolio for the time periods indicated and then redeem all of your Class A, Institutional, Service, Investor, Class R and/or Class R6 Shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Portfolio’s operating expenses remain the same (except that the Example incorporates the fee waiver and expense limitation arrangements for only the first year). Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example - Goldman Sachs Target Date 2055 Portfolio - USD ($)	1 Year	3 Years	5 Years	10 Years
Class A Shares	633	1,321	2,030	3,902
Institutional Shares	48	698	1,374	3,182
Service Shares	99	848	1,620	3,648
Investor Shares	62	740	1,443	3,315
Class R Shares	113	890	1,687	3,774
Class R6 Shares	47	695	1,369	3,172

Portfolio Turnover

The Portfolio may pay transaction costs when it buys and sells securities or instruments (i.e., “turns over” its portfolio). A high rate of portfolio turnover may result in increased transaction costs, including brokerage commissions, which must be borne by the Portfolio and its shareholders, and is also likely to result in higher short-term capital gains for taxable shareholders. These costs are not reflected in annual fund operating expenses or in the expense example above, but are reflected in the Portfolio’s performance. The Portfolio’s portfolio turnover rate for the fiscal period ended August 31, 2017 was 182% of the average value of its portfolio.

Principal Strategy

The Portfolio employs an asset allocation strategy designed for investors who plan to retire and to begin gradually withdrawing their investment from the Portfolio beginning in approximately 2055 (the "Target Date"). The Portfolio is managed for an investor planning to retire at the age of 65 on or around the Target Date.

The Portfolio generally seeks to achieve its investment objective by investing in shares of exchange-traded funds ("Underlying ETFs") and other registered investment companies (collectively, the "Underlying Funds"), according to an asset allocation strategy, developed by Madison Asset Management, LLC (the "Sub-Adviser") who is unaffiliated with the Investment Adviser, for investors planning to retire in or within a few years of 2055. Over time, the Portfolio's asset allocation will become more conservative until it reaches approximately 10-30% in equity funds and 70-90% in fixed income funds at the Target Date as illustrated in the graph below. After the Target Date, and as also illustrated in the graph below, the Portfolio's asset allocation targets are expected to remain within these approximate ranges. The graph below applies to each Goldman Sachs Target Date Portfolio identified in the Prospectus.



The asset allocation strategy is designed to reduce the volatility of investment returns in the later years while still providing the potential for higher total returns over the target period. Market conditions and the perceived value of securities will change as the investor moves across the glide path. Although the actual allocations may vary, the chart below illustrates the expected strategic asset allocation of the glide path and the tactical allocation ranges of the core asset classes and sub-asset classes.

YEARS TO TARGET DATE	40+	35	30	25	20	15	10	5	0	–5	–10
Strategic Allocations
Equity	85%	80%	75%	70%	65%	60%	55%	38%	20%	20%	20%
US Equity	60%	56%	53%	49%	46%	42%	39%	26%	14%	14%	14%
Non-US Developed Equities	26%	24%	23%	21%	20%	18%	17%	11%	6%	6%	6%
Fixed Income	15%	20%	25%	30%	35%	40%	45%	63%	80%	80%	80%
Tactical Allocation Ranges
Equity	75-95%	70-90%	65-85%	60-80%	55-75%	50-70%	45-65%	28-48%	10-30%	10-30%	10-30%
US Equity	45-86%	42-81%	39-77%	36-72%	33-68%	30-63%	27-59%	17-43%	6-27%	6-27%	6-27%
Non-US Equities	8-38%	7-36%	7-34%	6-32%	6-30%	5-28%	5-26%	3-19%	1-12%	1-12%	1-12%
Fixed Income	5-25%	10-30%	15-35%	20-40%	25-45%	30-50%	35-55%	53-73%	70-90%	70-90%	70-90%
Sub-Asset Classes and Alternatives
Emerging Markets Equities	0-19%	0-18%	0-17%	0-16%	0-15%	0-14%	0-13%	0-10%	0-6%	0-6%	0-6%
Real Estate	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%
Commodities	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%
Other Alternative Strategies	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%

Note: Above allocations may not sum to total due to rounding. 

On a periodic basis, the Sub-Adviser will evaluate and may revise the Portfolio's asset allocation, including revising the asset class weightings and adding and/or removing Underlying Funds. There will be times when the perceived value of equity and/or fixed income securities are stretched (or depressed) and the opportunity to proactively protect against (or take advantage of) these opportunities necessitates an ability to deviate from the glide path's strategic target. In order to attempt to capitalize on these periodic opportunities, the Sub-Adviser established a "tactical allocation range" that allows flexibility to increase or decrease exposure from the glide path's strategic allocations. As a result, the Portfolio's equity and fixed income asset allocation targets may range within the bounds of this tactical allocation range as illustrated in the chart above depending on the Sub-Adviser's views of the appropriate mix of the Portfolio's asset allocation based on then-current economic, market or other conditions, or factors unique to the Portfolio. Certain sub-asset classes, like real estate, commodities, and other alternative strategies, may be invested in using the tactical allocation range illustrated in the table above. The Sub-Adviser may also use the tactical allocation range to invest in certain other sub-asset classes within fixed income such as: domestic high yield non-investment grade securities (commonly referred to as "junk bonds"), inflation-linked securities, securities issued by foreign corporate and governmental issuers, sovereign and corporate debt securities of issuers in emerging market countries, convertible securities, and preferred stock. The Sub-Adviser will also monitor the Underlying Funds on an ongoing basis and may increase or decrease the Portfolio's investment in one or more Underlying Funds. The Underlying Fund selections are made based on several considerations, including the Portfolio's style or asset class exposures, portfolio characteristics, risk profile, and investment process. With regard to investments in Underlying Funds that invest in debt securities, the Sub-Adviser seeks to select portfolios of securities with long-, intermediate- and short-term maturities. Although the Portfolio does not intend to concentrate its investments in a particular industry, the Portfolio may indirectly concentrate in a particular industry or group of industries through its aggregate investment in one or more Underlying Funds. The particular Underlying Funds in which the Portfolio may invest and the Portfolio's targets and ranges will change from time to time without shareholder approval or notice.

The Sub-Adviser's strategy is intended to represent a conservative investment strategy. The Sub-Adviser's expectation is that the Portfolio may participate in market appreciation during bull markets and experience something less than full participation during bear markets compared with other funds holding more speculative and volatile securities. There is no assurance that the Sub-Adviser's expectations regarding this investment strategy will be realized.

Although the Portfolio expects to pursue its investment objective utilizing its principal investment strategies regardless of market conditions, the Portfolio may invest up to 100% in money market instruments. To the extent the Portfolio engages in this temporary defensive position, the Portfolio's ability to achieve its investment objective may be diminished.

Management Process

The Investment Adviser and the Portfolio have received an exemptive order from the Securities and Exchange Commission ("SEC"). Under the exemptive order, the Investment Adviser has the ultimate responsibility, subject to oversight by the Portfolio's Board of Trustees, to oversee the Sub-Adviser and recommend its hiring, termination and replacement. The initial shareholder of the Portfolio approved the Portfolio's operation in this manner and reliance by the Portfolio on this exemptive order.

Additional Information

The Portfolio's benchmark index is the S&P Target Date To 2055 Index (the "Index").

Principal Risks of the Portfolio

Loss of money is a risk of investing in the Portfolio. An investment in the Portfolio is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any government agency. The Portfolio should not be relied upon as a complete investment program. Stated allocations may be subject to change. There can be no assurance that the Portfolio will achieve its investment objective. Investments in the Portfolio involve substantial risks which prospective investors should consider carefully before investing. Investors should also consider, in addition to his or her age or retirement date, other factors, including the investor’s risk tolerance, personal circumstances, and complete financial situation.

Asset Allocation Risk.  The Portfolio's allocations to various asset classes and to the Underlying Funds may cause the Portfolio to underperform other funds with a similar investment objective.

Expenses.  By investing in the Underlying Funds indirectly through the Portfolio, the investor will incur not only a proportionate share of the expenses of the Underlying Funds held by the Portfolio (including operating costs and investment management fees), but also expenses of the Portfolio.

Inadequate Retirement Income.  An investment in the Portfolio is not guaranteed, and the Portfolio may experience losses, including losses near, at, or after the Target Date. There is no guarantee that the Portfolio will achieve sufficient capital appreciation to provide adequate income at and through retirement. Moreover, there is no guarantee that the Portfolio's performance will keep pace with or exceed the rate of inflation, which may reduce the value of your investment over time.

Investing in the Underlying Funds.  The investments of the Portfolio may be concentrated in one or more Underlying Funds (including ETFs and other registered investment companies) subject to statutory limitations prescribed by the Investment Company Act of 1940, as amended (the “Investment Company Act”), or exemptive relief thereunder. The Portfolio’s investment performance is directly related to the investment performance of the Underlying Funds it holds. The Portfolio is subject to the risk factors associated with the investments of the Underlying Funds in direct proportion to the amount of assets allocated to each. If the Portfolio has a relative concentration of its portfolio in a single Underlying Fund, it may be more susceptible to adverse developments affecting that Underlying Fund, and may be more susceptible to losses because of these developments.

Investments of the Underlying Funds.  Because the Portfolio invests in the Underlying Funds, the Portfolio's shareholders will be affected by the investment policies and practices of the Underlying Funds in direct proportion to the amount of assets the Portfolio allocates to those Underlying Funds. A strategy used by the Underlying Funds may fail to produce the intended results.

Large Shareholder Transactions Risk.  The Portfolio may experience adverse effects when certain large shareholders purchase or redeem large amounts of shares of the Portfolio. Such large shareholder redemptions may cause the Portfolio to sell portfolio securities at times when it would not otherwise do so, which may negatively impact the Portfolio's NAV and liquidity. Similarly, large Portfolio share purchases may adversely affect the Portfolio's performance to the extent that the Portfolio is delayed in investing new cash and is required to maintain a larger cash position than it ordinarily would. These transactions may also accelerate the realization of taxable income to shareholders if such sales of investments resulted in gains, and may also increase transaction costs. In addition, a large redemption could result in the Portfolio's current expenses being allocated over a smaller asset base, leading to an increase in the Portfolio's expense ratio.

Management Risk.  A strategy used by the Sub-Adviser may fail to produce the intended results.

Portfolio Turnover Rate Risk.  A high rate of portfolio turnover (100% or more) involves correspondingly greater expenses which must be borne by the Portfolio and its shareholders, and is also likely to result in short-term capital gains taxable to shareholders.

Underlying ETF Risk.  The Portfolio may invest in Underlying ETFs subject to statutory limitations prescribed by the Investment Company Act, or exemptive relief thereunder. An investment in an Underlying ETF generally presents the same primary risks as an investment in a conventional fund (i.e., one that is not exchange-traded) that has the same investment objectives, strategies and policies. In addition, an ETF may fail to accurately track the market segment or index that underlies its investment objective; however, the market price of the Underlying ETF's shares may trade at a premium or a discount to their net asset value. The price of an Underlying ETF can fluctuate, and the Portfolio could lose money investing in an Underlying ETF.

Principal Risks of the Underlying Funds

Credit/Default Risk.  An issuer or guarantor of fixed income securities held by an Underlying Fund (which may have low credit ratings) may default on its obligation to pay interest and repay principal or default on any other obligation. Additionally, the credit quality of securities may deteriorate rapidly, which may impair an Underlying Fund's liquidity and cause significant deterioration in NAV. These risks are more pronounced in connection with an Underlying Fund's investments in non-investment grade fixed income securities.

Derivatives Risk.  An Underlying Fund’s use of options, forwards, futures, swaps, structured securities and other derivative instruments may result in losses. These instruments, which may pose risks in addition to and greater than those associated with investing directly in securities, currencies or other instruments, may be illiquid or less liquid, volatile, difficult to price and leveraged so that small changes in the value of the underlying instruments may produce disproportionate losses to the Underlying Fund. Certain derivatives are also subject to counterparty risk, which is the risk that the other party in the transaction will not fulfill its contractual obligations. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with investments in more traditional securities and instruments.

Foreign and Emerging Countries Risk.  Foreign securities may be subject to risk of loss because of more or less foreign government regulation, less public information and less economic, political and social stability in the countries in which the Portfolio invests. The imposition of exchange controls, sanctions, confiscations, trade restrictions (including tariffs) and other government restrictions by the United States and other governments, or from problems in share registration, settlement or custody, may also result in losses. Foreign risk also involves the risk of negative foreign currency rate fluctuations, which may cause the value of securities denominated in such foreign currency (or other instruments through which an Underlying Fund has exposure to foreign currencies) to decline in value. Currency exchange rates may fluctuate significantly over short periods of time. These risks may be more pronounced in connection with the Underlying Fund's investments in securities of issuers located in emerging countries.

Geographic Risk.  If an Underlying Fund focuses its investments in issuers located in a particular country or region, the Underlying Fund may be subjected, to a greater extent than if investments were less focused, to the risks of volatile economic cycles and/or conditions and developments that may be particular to that country or region, such as: adverse securities markets; adverse exchange rates; adverse social, political, regulatory, economic, business, environmental or other developments; or natural disasters.

Interest Rate Risk.  When interest rates increase, fixed income securities or instruments held by an Underlying Fund will generally decline in value. Long-term fixed income securities or instruments will normally have more price volatility because of this risk than short-term fixed income securities or instruments. The risks associated with increasing rates are heightened given that interest rates are near historic lows, but may be expected to increase in the future with unpredictable effects on the markets and an Underlying Fund's investments. Fluctuations in interest rates may also affect the liquidity of fixed income securities and instruments held by an Underlying Fund.

Leverage Risk.  Borrowing and the use of derivatives may result in leverage and may make an Underlying Fund more volatile. The use of leverage may cause an Underlying Fund to liquidate portfolio positions to satisfy its obligations or to meet asset segregation requirements when it may not be advantageous to do so. The use of leverage by an Underlying Fund can substantially increase the adverse impact to which its investment portfolio may be subject.

Liquidity Risk.  An Underlying Fund may make investments that are illiquid or that may become less liquid in response to market developments or adverse investor perceptions. Illiquid investments may be more difficult to value. Liquidity risk may also refer to the risk that an Underlying Fund will not be able to pay redemption proceeds within the allowable time period because of unusual market conditions, an unusually high volume of redemption requests or other reasons. To meet redemption requests, an Underlying Fund may be forced to sell securities, at an unfavorable time and/or under unfavorable conditions. Liquidity risk may be the result of, among other things, the reduced number and capacity of traditional market participants to make a market in fixed income securities or the lack of an active market. The potential for liquidity risk may be magnified by a rising interest rate environment or other circumstances where investor redemptions from fixed income mutual funds may be higher than normal, potentially causing increased supply in the market due to selling activity.

Market Risk.  The value of the securities in which an Underlying Fund invests may go up or down in response to the prospects of individual companies, particular sectors or governments and/or general economic conditions throughout the world due to increasingly interconnected global economies and financial markets.

Mid-Cap and Small-Cap Risk.  Certain of the Underlying Funds may make investments mid-capitalization and small-capitalization companies involve greater risks than those associated with larger, more established companies. These securities may be subject to more abrupt or erratic price movements and may lack sufficient market liquidity, and these issuers often face greater business risks.

Mortgage-Backed and Other Asset-Backed Securities Risk.  Mortgage-related and other asset-backed securities are subject to certain additional risks, including "extension risk" (i.e., in periods of rising interest rates, issuers may pay principal later than expected) and "prepayment risk" (i.e., in periods of declining interest rates, issuers may pay principal more quickly than expected, causing an Underlying Fund to reinvest proceeds at lower prevailing interest rates). Mortgage-backed securities offered by non-governmental issuers are subject to other risks as well, including failures of private insurers to meet their obligations and unexpectedly high rates of default on the mortgages backing the securities. Other asset-backed securities are subject to risks similar to those associated with mortgage-backed securities, as well as risks associated with the nature and servicing of the assets backing the securities. Asset-backed securities may not have the benefit of a security interest in collateral comparable to that of mortgage assets, resulting in additional credit risk.

Non-Investment Grade Investments Risk.  Non-investment grade fixed income securities and unrated securities of comparable credit quality (commonly known as "junk bonds") are considered speculative and are subject to the increased risk of an issuer's inability to meet principal and interest payment obligations. These securities may be subject to greater price volatility due to such factors as specific issuer developments, interest rate sensitivity, negative perceptions of the junk bond markets generally and less liquidity.

Stock Risk.  Stock prices have historically risen and fallen in periodic cycles. U.S. and foreign stock markets have experienced periods of substantial price volatility in the past and may do so again in the future.

U.S. Government Securities Risk.  The U.S. government may not provide financial support to U.S. government agencies, instrumentalities or sponsored enterprises if it is not obligated to do so by law. U.S. Government Securities issued by those agencies, instrumentalities and sponsored enterprises, including those issued by the Federal National Mortgage Association ("Fannie Mae"), Federal Home Loan Mortgage Corporation ("Freddie Mac") and the Federal Home Loan Banks, are neither issued nor guaranteed by the U.S. Treasury and, therefore, are not backed by the full faith and credit of the United States. The maximum potential liability of the issuers of some U.S. Government Securities held by an Underlying Fund may greatly exceed their current resources, including any legal right to support from the U.S. Treasury. It is possible that issuers of U.S. Government Securities will not have the funds to meet their payment obligations in the future.

Performance

As the Portfolio has not operated for a full calendar year as of the date of the Prospectus, there is no performance information quoted for the Portfolio. Updated performance information is available at no cost at www.gsamfunds.com/performance or by calling the phone number on the back of the Prospectus.

[1] The Portfolio’s “Other Expenses” have been restated to reflect expenses expected to be incurred during the current fiscal year.

[2] The Total Annual Portfolio Operating Expenses do not correlate to the ratios of the net and total expenses to average net assets provided in the Financial Highlights, which reflect the operating expenses of the Portfolio and do not include Acquired (Underlying) Fund Fees and Expenses.

[3] The Investment Adviser has agreed to reduce or limit “Other Expenses” (excluding acquired (underlying) fund fees and expenses, transfer agency fees and expenses, service fees, shareholder administration fees, taxes, interest, brokerage fees, expenses of shareholder meetings, litigation and indemnification, and extraordinary expenses) to 0.014% of the Portfolio’s average daily net assets. Additionally, Goldman Sachs & Co. LLC (“Goldman Sachs”), the Portfolio’s transfer agent, has agreed to waive a portion of its transfer agency fee (a component of “Other Expenses”) equal to 0.01% as an annual percentage rate of the average daily net assets attributable to Class R6 Shares of the Portfolio. These arrangements will remain in effect through at least December 29, 2018, and prior to such date, the Investment Adviser and Goldman Sachs (as applicable) may not terminate the arrangements without the approval of the Board of Trustees.

XML

Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Registrant Name

dei_EntityRegistrantName

Goldman Sachs Trust II

Prospectus Date

rr_ProspectusDate

May 21, 2018

Goldman Sachs Target Date 2055 Portfolio

Risk/Return:

rr_RiskReturnAbstract

Risk/Return [Heading]

rr_RiskReturnHeading

Goldman Sachs Target Date 2055 Portfolio—Summary

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Goldman Sachs Target Date 2055 Portfolio (the “Portfolio”) seeks to provide capital appreciation and current income consistent with its current asset allocation.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses of the Portfolio

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 Portfolio. You may qualify for sales charge discounts on purchases of Class A Shares if you invest at least $50,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 82 and in Appendix C—Additional Information About Sales Charge Variations, Waivers and Discounts on page 126 of the Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-133 of the Portfolio’s Statement of Additional Information (“SAI”).

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees
(fees paid directly from your investment)

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Portfolio Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

December 29, 2018

Portfolio Turnover [Heading]

rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block]

rr_PortfolioTurnoverTextBlock

The Portfolio may pay transaction costs when it buys and sells securities or instruments (i.e., “turns over” its portfolio). A high rate of portfolio turnover may result in increased transaction costs, including brokerage commissions, which must be borne by the Portfolio and its shareholders, and is also likely to result in higher short-term capital gains for taxable shareholders. These costs are not reflected in annual fund operating expenses or in the expense example above, but are reflected in the Portfolio’s performance. The Portfolio’s portfolio turnover rate for the fiscal period ended August 31, 2017 was 182% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

182.00%

Expense Breakpoint Discounts [Text]

rr_ExpenseBreakpointDiscounts

You may qualify for sales charge discounts on purchases of Class A Shares if you invest at least $50,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 82 and in Appendix C—Additional Information About Sales Charge Variations, Waivers and Discounts on page 126 of the Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-133 of the Portfolio’s Statement of Additional Information (“SAI”).

Expense Breakpoint, Minimum Investment Required [Amount]

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

$ 50,000

Expenses Restated to Reflect Current [Text]

rr_ExpensesRestatedToReflectCurrent

The Portfolio’s “Other Expenses” have been restated to reflect expenses expected to be incurred during the current fiscal year.

Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text]

rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees

The Total Annual Portfolio Operating Expenses do not correlate to the ratios of the net and total expenses to average net assets provided in the Financial Highlights, which reflect the operating expenses of the Portfolio and do not include Acquired (Underlying) Fund Fees and Expenses.

Expense Example [Heading]

rr_ExpenseExampleHeading

Expense Example

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This Example is intended to help you compare the cost of investing in the Portfolio with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in Class A, Institutional, Service, Investor, Class R and/or Class R6 Shares of the Portfolio for the time periods indicated and then redeem all of your Class A, Institutional, Service, Investor, Class R and/or Class R6 Shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Portfolio’s operating expenses remain the same (except that the Example incorporates the fee waiver and expense limitation arrangements for only the first year). Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Strategy [Heading]

rr_StrategyHeading

Principal Strategy

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

The Portfolio employs an asset allocation strategy designed for investors who plan to retire and to begin gradually withdrawing their investment from the Portfolio beginning in approximately 2055 (the "Target Date"). The Portfolio is managed for an investor planning to retire at the age of 65 on or around the Target Date.

The Portfolio generally seeks to achieve its investment objective by investing in shares of exchange-traded funds ("Underlying ETFs") and other registered investment companies (collectively, the "Underlying Funds"), according to an asset allocation strategy, developed by Madison Asset Management, LLC (the "Sub-Adviser") who is unaffiliated with the Investment Adviser, for investors planning to retire in or within a few years of 2055. Over time, the Portfolio's asset allocation will become more conservative until it reaches approximately 10-30% in equity funds and 70-90% in fixed income funds at the Target Date as illustrated in the graph below. After the Target Date, and as also illustrated in the graph below, the Portfolio's asset allocation targets are expected to remain within these approximate ranges. The graph below applies to each Goldman Sachs Target Date Portfolio identified in the Prospectus.



The asset allocation strategy is designed to reduce the volatility of investment returns in the later years while still providing the potential for higher total returns over the target period. Market conditions and the perceived value of securities will change as the investor moves across the glide path. Although the actual allocations may vary, the chart below illustrates the expected strategic asset allocation of the glide path and the tactical allocation ranges of the core asset classes and sub-asset classes.

YEARS TO TARGET DATE	40+	35	30	25	20	15	10	5	0	–5	–10
Strategic Allocations
Equity	85%	80%	75%	70%	65%	60%	55%	38%	20%	20%	20%
US Equity	60%	56%	53%	49%	46%	42%	39%	26%	14%	14%	14%
Non-US Developed Equities	26%	24%	23%	21%	20%	18%	17%	11%	6%	6%	6%
Fixed Income	15%	20%	25%	30%	35%	40%	45%	63%	80%	80%	80%
Tactical Allocation Ranges
Equity	75-95%	70-90%	65-85%	60-80%	55-75%	50-70%	45-65%	28-48%	10-30%	10-30%	10-30%
US Equity	45-86%	42-81%	39-77%	36-72%	33-68%	30-63%	27-59%	17-43%	6-27%	6-27%	6-27%
Non-US Equities	8-38%	7-36%	7-34%	6-32%	6-30%	5-28%	5-26%	3-19%	1-12%	1-12%	1-12%
Fixed Income	5-25%	10-30%	15-35%	20-40%	25-45%	30-50%	35-55%	53-73%	70-90%	70-90%	70-90%
Sub-Asset Classes and Alternatives
Emerging Markets Equities	0-19%	0-18%	0-17%	0-16%	0-15%	0-14%	0-13%	0-10%	0-6%	0-6%	0-6%
Real Estate	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%
Commodities	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%
Other Alternative Strategies	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%

Note: Above allocations may not sum to total due to rounding. 

On a periodic basis, the Sub-Adviser will evaluate and may revise the Portfolio's asset allocation, including revising the asset class weightings and adding and/or removing Underlying Funds. There will be times when the perceived value of equity and/or fixed income securities are stretched (or depressed) and the opportunity to proactively protect against (or take advantage of) these opportunities necessitates an ability to deviate from the glide path's strategic target. In order to attempt to capitalize on these periodic opportunities, the Sub-Adviser established a "tactical allocation range" that allows flexibility to increase or decrease exposure from the glide path's strategic allocations. As a result, the Portfolio's equity and fixed income asset allocation targets may range within the bounds of this tactical allocation range as illustrated in the chart above depending on the Sub-Adviser's views of the appropriate mix of the Portfolio's asset allocation based on then-current economic, market or other conditions, or factors unique to the Portfolio. Certain sub-asset classes, like real estate, commodities, and other alternative strategies, may be invested in using the tactical allocation range illustrated in the table above. The Sub-Adviser may also use the tactical allocation range to invest in certain other sub-asset classes within fixed income such as: domestic high yield non-investment grade securities (commonly referred to as "junk bonds"), inflation-linked securities, securities issued by foreign corporate and governmental issuers, sovereign and corporate debt securities of issuers in emerging market countries, convertible securities, and preferred stock. The Sub-Adviser will also monitor the Underlying Funds on an ongoing basis and may increase or decrease the Portfolio's investment in one or more Underlying Funds. The Underlying Fund selections are made based on several considerations, including the Portfolio's style or asset class exposures, portfolio characteristics, risk profile, and investment process. With regard to investments in Underlying Funds that invest in debt securities, the Sub-Adviser seeks to select portfolios of securities with long-, intermediate- and short-term maturities. Although the Portfolio does not intend to concentrate its investments in a particular industry, the Portfolio may indirectly concentrate in a particular industry or group of industries through its aggregate investment in one or more Underlying Funds. The particular Underlying Funds in which the Portfolio may invest and the Portfolio's targets and ranges will change from time to time without shareholder approval or notice.

The Sub-Adviser's strategy is intended to represent a conservative investment strategy. The Sub-Adviser's expectation is that the Portfolio may participate in market appreciation during bull markets and experience something less than full participation during bear markets compared with other funds holding more speculative and volatile securities. There is no assurance that the Sub-Adviser's expectations regarding this investment strategy will be realized.

Although the Portfolio expects to pursue its investment objective utilizing its principal investment strategies regardless of market conditions, the Portfolio may invest up to 100% in money market instruments. To the extent the Portfolio engages in this temporary defensive position, the Portfolio's ability to achieve its investment objective may be diminished.

Management Process

The Investment Adviser and the Portfolio have received an exemptive order from the Securities and Exchange Commission ("SEC"). Under the exemptive order, the Investment Adviser has the ultimate responsibility, subject to oversight by the Portfolio's Board of Trustees, to oversee the Sub-Adviser and recommend its hiring, termination and replacement. The initial shareholder of the Portfolio approved the Portfolio's operation in this manner and reliance by the Portfolio on this exemptive order.

Additional Information

The Portfolio's benchmark index is the S&P Target Date To 2055 Index (the "Index").

Risk [Heading]

rr_RiskHeading

Principal Risks of the Portfolio

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

Loss of money is a risk of investing in the Portfolio. An investment in the Portfolio is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any government agency. The Portfolio should not be relied upon as a complete investment program. Stated allocations may be subject to change. There can be no assurance that the Portfolio will achieve its investment objective. Investments in the Portfolio involve substantial risks which prospective investors should consider carefully before investing. Investors should also consider, in addition to his or her age or retirement date, other factors, including the investor’s risk tolerance, personal circumstances, and complete financial situation.

Asset Allocation Risk.  The Portfolio's allocations to various asset classes and to the Underlying Funds may cause the Portfolio to underperform other funds with a similar investment objective.

Expenses.  By investing in the Underlying Funds indirectly through the Portfolio, the investor will incur not only a proportionate share of the expenses of the Underlying Funds held by the Portfolio (including operating costs and investment management fees), but also expenses of the Portfolio.

Inadequate Retirement Income.  An investment in the Portfolio is not guaranteed, and the Portfolio may experience losses, including losses near, at, or after the Target Date. There is no guarantee that the Portfolio will achieve sufficient capital appreciation to provide adequate income at and through retirement. Moreover, there is no guarantee that the Portfolio's performance will keep pace with or exceed the rate of inflation, which may reduce the value of your investment over time.

Investing in the Underlying Funds.  The investments of the Portfolio may be concentrated in one or more Underlying Funds (including ETFs and other registered investment companies) subject to statutory limitations prescribed by the Investment Company Act of 1940, as amended (the “Investment Company Act”), or exemptive relief thereunder. The Portfolio’s investment performance is directly related to the investment performance of the Underlying Funds it holds. The Portfolio is subject to the risk factors associated with the investments of the Underlying Funds in direct proportion to the amount of assets allocated to each. If the Portfolio has a relative concentration of its portfolio in a single Underlying Fund, it may be more susceptible to adverse developments affecting that Underlying Fund, and may be more susceptible to losses because of these developments.

Investments of the Underlying Funds.  Because the Portfolio invests in the Underlying Funds, the Portfolio's shareholders will be affected by the investment policies and practices of the Underlying Funds in direct proportion to the amount of assets the Portfolio allocates to those Underlying Funds. A strategy used by the Underlying Funds may fail to produce the intended results.

Large Shareholder Transactions Risk.  The Portfolio may experience adverse effects when certain large shareholders purchase or redeem large amounts of shares of the Portfolio. Such large shareholder redemptions may cause the Portfolio to sell portfolio securities at times when it would not otherwise do so, which may negatively impact the Portfolio's NAV and liquidity. Similarly, large Portfolio share purchases may adversely affect the Portfolio's performance to the extent that the Portfolio is delayed in investing new cash and is required to maintain a larger cash position than it ordinarily would. These transactions may also accelerate the realization of taxable income to shareholders if such sales of investments resulted in gains, and may also increase transaction costs. In addition, a large redemption could result in the Portfolio's current expenses being allocated over a smaller asset base, leading to an increase in the Portfolio's expense ratio.

Management Risk.  A strategy used by the Sub-Adviser may fail to produce the intended results.

Portfolio Turnover Rate Risk.  A high rate of portfolio turnover (100% or more) involves correspondingly greater expenses which must be borne by the Portfolio and its shareholders, and is also likely to result in short-term capital gains taxable to shareholders.

Underlying ETF Risk.  The Portfolio may invest in Underlying ETFs subject to statutory limitations prescribed by the Investment Company Act, or exemptive relief thereunder. An investment in an Underlying ETF generally presents the same primary risks as an investment in a conventional fund (i.e., one that is not exchange-traded) that has the same investment objectives, strategies and policies. In addition, an ETF may fail to accurately track the market segment or index that underlies its investment objective; however, the market price of the Underlying ETF's shares may trade at a premium or a discount to their net asset value. The price of an Underlying ETF can fluctuate, and the Portfolio could lose money investing in an Underlying ETF.

Principal Risks of the Underlying Funds

Credit/Default Risk.  An issuer or guarantor of fixed income securities held by an Underlying Fund (which may have low credit ratings) may default on its obligation to pay interest and repay principal or default on any other obligation. Additionally, the credit quality of securities may deteriorate rapidly, which may impair an Underlying Fund's liquidity and cause significant deterioration in NAV. These risks are more pronounced in connection with an Underlying Fund's investments in non-investment grade fixed income securities.

Derivatives Risk.  An Underlying Fund’s use of options, forwards, futures, swaps, structured securities and other derivative instruments may result in losses. These instruments, which may pose risks in addition to and greater than those associated with investing directly in securities, currencies or other instruments, may be illiquid or less liquid, volatile, difficult to price and leveraged so that small changes in the value of the underlying instruments may produce disproportionate losses to the Underlying Fund. Certain derivatives are also subject to counterparty risk, which is the risk that the other party in the transaction will not fulfill its contractual obligations. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with investments in more traditional securities and instruments.

Foreign and Emerging Countries Risk.  Foreign securities may be subject to risk of loss because of more or less foreign government regulation, less public information and less economic, political and social stability in the countries in which the Portfolio invests. The imposition of exchange controls, sanctions, confiscations, trade restrictions (including tariffs) and other government restrictions by the United States and other governments, or from problems in share registration, settlement or custody, may also result in losses. Foreign risk also involves the risk of negative foreign currency rate fluctuations, which may cause the value of securities denominated in such foreign currency (or other instruments through which an Underlying Fund has exposure to foreign currencies) to decline in value. Currency exchange rates may fluctuate significantly over short periods of time. These risks may be more pronounced in connection with the Underlying Fund's investments in securities of issuers located in emerging countries.

Geographic Risk.  If an Underlying Fund focuses its investments in issuers located in a particular country or region, the Underlying Fund may be subjected, to a greater extent than if investments were less focused, to the risks of volatile economic cycles and/or conditions and developments that may be particular to that country or region, such as: adverse securities markets; adverse exchange rates; adverse social, political, regulatory, economic, business, environmental or other developments; or natural disasters.

Interest Rate Risk.  When interest rates increase, fixed income securities or instruments held by an Underlying Fund will generally decline in value. Long-term fixed income securities or instruments will normally have more price volatility because of this risk than short-term fixed income securities or instruments. The risks associated with increasing rates are heightened given that interest rates are near historic lows, but may be expected to increase in the future with unpredictable effects on the markets and an Underlying Fund's investments. Fluctuations in interest rates may also affect the liquidity of fixed income securities and instruments held by an Underlying Fund.

Leverage Risk.  Borrowing and the use of derivatives may result in leverage and may make an Underlying Fund more volatile. The use of leverage may cause an Underlying Fund to liquidate portfolio positions to satisfy its obligations or to meet asset segregation requirements when it may not be advantageous to do so. The use of leverage by an Underlying Fund can substantially increase the adverse impact to which its investment portfolio may be subject.

Liquidity Risk.  An Underlying Fund may make investments that are illiquid or that may become less liquid in response to market developments or adverse investor perceptions. Illiquid investments may be more difficult to value. Liquidity risk may also refer to the risk that an Underlying Fund will not be able to pay redemption proceeds within the allowable time period because of unusual market conditions, an unusually high volume of redemption requests or other reasons. To meet redemption requests, an Underlying Fund may be forced to sell securities, at an unfavorable time and/or under unfavorable conditions. Liquidity risk may be the result of, among other things, the reduced number and capacity of traditional market participants to make a market in fixed income securities or the lack of an active market. The potential for liquidity risk may be magnified by a rising interest rate environment or other circumstances where investor redemptions from fixed income mutual funds may be higher than normal, potentially causing increased supply in the market due to selling activity.

Market Risk.  The value of the securities in which an Underlying Fund invests may go up or down in response to the prospects of individual companies, particular sectors or governments and/or general economic conditions throughout the world due to increasingly interconnected global economies and financial markets.

Mid-Cap and Small-Cap Risk.  Certain of the Underlying Funds may make investments mid-capitalization and small-capitalization companies involve greater risks than those associated with larger, more established companies. These securities may be subject to more abrupt or erratic price movements and may lack sufficient market liquidity, and these issuers often face greater business risks.

Mortgage-Backed and Other Asset-Backed Securities Risk.  Mortgage-related and other asset-backed securities are subject to certain additional risks, including "extension risk" (i.e., in periods of rising interest rates, issuers may pay principal later than expected) and "prepayment risk" (i.e., in periods of declining interest rates, issuers may pay principal more quickly than expected, causing an Underlying Fund to reinvest proceeds at lower prevailing interest rates). Mortgage-backed securities offered by non-governmental issuers are subject to other risks as well, including failures of private insurers to meet their obligations and unexpectedly high rates of default on the mortgages backing the securities. Other asset-backed securities are subject to risks similar to those associated with mortgage-backed securities, as well as risks associated with the nature and servicing of the assets backing the securities. Asset-backed securities may not have the benefit of a security interest in collateral comparable to that of mortgage assets, resulting in additional credit risk.

Non-Investment Grade Investments Risk.  Non-investment grade fixed income securities and unrated securities of comparable credit quality (commonly known as "junk bonds") are considered speculative and are subject to the increased risk of an issuer's inability to meet principal and interest payment obligations. These securities may be subject to greater price volatility due to such factors as specific issuer developments, interest rate sensitivity, negative perceptions of the junk bond markets generally and less liquidity.

Stock Risk.  Stock prices have historically risen and fallen in periodic cycles. U.S. and foreign stock markets have experienced periods of substantial price volatility in the past and may do so again in the future.

U.S. Government Securities Risk.  The U.S. government may not provide financial support to U.S. government agencies, instrumentalities or sponsored enterprises if it is not obligated to do so by law. U.S. Government Securities issued by those agencies, instrumentalities and sponsored enterprises, including those issued by the Federal National Mortgage Association ("Fannie Mae"), Federal Home Loan Mortgage Corporation ("Freddie Mac") and the Federal Home Loan Banks, are neither issued nor guaranteed by the U.S. Treasury and, therefore, are not backed by the full faith and credit of the United States. The maximum potential liability of the issuers of some U.S. Government Securities held by an Underlying Fund may greatly exceed their current resources, including any legal right to support from the U.S. Treasury. It is possible that issuers of U.S. Government Securities will not have the funds to meet their payment obligations in the future.

Risk Lose Money [Text]

rr_RiskLoseMoney

Loss of money is a risk of investing in the Portfolio.

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Portfolio is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any government agency.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

As the Portfolio has not operated for a full calendar year as of the date of the Prospectus, there is no performance information quoted for the Portfolio. Updated performance information is available at no cost at www.gsamfunds.com/performance or by calling the phone number on the back of the Prospectus.

Performance One Year or Less [Text]

rr_PerformanceOneYearOrLess

As the Portfolio has not operated for a full calendar year as of the date of the Prospectus, there is no performance information quoted for the Portfolio.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

www.gsamfunds.com/performance

Goldman Sachs Target Date 2055 Portfolio | Class A

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

5.50%

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

2.77%

Other Expenses

rr_OtherExpensesOverAssets

2.77%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

3.44%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(2.58%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.86%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 633

3 Years

rr_ExpenseExampleYear03

1,321

5 Years

rr_ExpenseExampleYear05

2,030

10 Years

rr_ExpenseExampleYear10

$ 3,902

Goldman Sachs Target Date 2055 Portfolio | Institutional

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

2.63%

Other Expenses

rr_OtherExpensesOverAssets

2.63%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

3.05%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(2.58%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.47%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 48

3 Years

rr_ExpenseExampleYear03

698

5 Years

rr_ExpenseExampleYear05

1,374

10 Years

rr_ExpenseExampleYear10

$ 3,182

Goldman Sachs Target Date 2055 Portfolio | Service

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

0.25%

All Other Expenses

rr_Component2OtherExpensesOverAssets

2.63%

Other Expenses

rr_OtherExpensesOverAssets

2.88%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

3.55%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(2.58%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.97%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 99

3 Years

rr_ExpenseExampleYear03

848

5 Years

rr_ExpenseExampleYear05

1,620

10 Years

rr_ExpenseExampleYear10

$ 3,648

Goldman Sachs Target Date 2055 Portfolio | Investor

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

2.77%

Other Expenses

rr_OtherExpensesOverAssets

2.77%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

3.19%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(2.58%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.61%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 62

3 Years

rr_ExpenseExampleYear03

740

5 Years

rr_ExpenseExampleYear05

1,443

10 Years

rr_ExpenseExampleYear10

$ 3,315

Goldman Sachs Target Date 2055 Portfolio | Class R

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.50%

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

2.77%

Other Expenses

rr_OtherExpensesOverAssets

2.77%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

3.69%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(2.58%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

1.11%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 113

3 Years

rr_ExpenseExampleYear03

890

5 Years

rr_ExpenseExampleYear05

1,687

10 Years

rr_ExpenseExampleYear10

$ 3,774

Goldman Sachs Target Date 2055 Portfolio | Class R6

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

2.62%

Other Expenses

rr_OtherExpensesOverAssets

2.62%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

3.04%

^[2]

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(2.58%)

^[3]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.46%

^[2]

1 Year

rr_ExpenseExampleYear01

$ 47

3 Years

rr_ExpenseExampleYear03

695

5 Years

rr_ExpenseExampleYear05

1,369

10 Years

rr_ExpenseExampleYear10

$ 3,172

[1] The Portfolio’s “Other Expenses” have been restated to reflect expenses expected to be incurred during the current fiscal year.

[2] The Total Annual Portfolio Operating Expenses do not correlate to the ratios of the net and total expenses to average net assets provided in the Financial Highlights, which reflect the operating expenses of the Portfolio and do not include Acquired (Underlying) Fund Fees and Expenses.

[3] The Investment Adviser has agreed to reduce or limit “Other Expenses” (excluding acquired (underlying) fund fees and expenses, transfer agency fees and expenses, service fees, shareholder administration fees, taxes, interest, brokerage fees, expenses of shareholder meetings, litigation and indemnification, and extraordinary expenses) to 0.014% of the Portfolio’s average daily net assets. Additionally, Goldman Sachs & Co. LLC (“Goldman Sachs”), the Portfolio’s transfer agent, has agreed to waive a portion of its transfer agency fee (a component of “Other Expenses”) equal to 0.01% as an annual percentage rate of the average daily net assets attributable to Class R6 Shares of the Portfolio. These arrangements will remain in effect through at least December 29, 2018, and prior to such date, the Investment Adviser and Goldman Sachs (as applicable) may not terminate the arrangements without the approval of the Board of Trustees.

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Goldman Sachs Target Date 2060 Portfolio

Goldman Sachs Target Date 2060 Portfolio—Summary

Investment Objective

The Goldman Sachs Target Date 2060 Portfolio (the “Portfolio”) seeks to provide capital appreciation and current income consistent with its current asset allocation.

Fees and Expenses of the Portfolio

This table describes the fees and expenses that you may pay if you buy and hold shares of the Portfolio. You may qualify for sales charge discounts on purchases of Class A Shares if you invest at least $50,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 82 and in Appendix C—Additional Information About Sales Charge Variations, Waivers and Discounts on page 126 of the Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-133 of the Portfolio’s Statement of Additional Information (“SAI”).

Shareholder Fees
(fees paid directly from your investment)

Shareholder Fees - Goldman Sachs Target Date 2060 Portfolio	Class A	Institutional	Service	Investor	Class R	Class R6
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.50%	none	none	none	none	none

Annual Portfolio Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Annual Portfolio Operating Expenses - Goldman Sachs Target Date 2060 Portfolio		Class A	Institutional	Service	Investor	Class R	Class R6
Management Fees		0.25%	0.25%	0.25%	0.25%	0.25%	0.25%
Distribution and/or Service (12b-1) Fees		0.25%	none	0.25%	none	0.50%	none
Other Expenses	[1]	2.52%	2.38%	2.63%	2.52%	2.52%	2.37%
Shareholder Administration Fees		none	none	0.25%	none	none	none
All Other Expenses		2.52%	2.38%	2.38%	2.52%	2.52%	2.37%
Acquired (Underlying) Fund Fees and Expenses		0.17%	0.17%	0.17%	0.17%	0.17%	0.17%
Total Annual Portfolio Operating Expenses		3.19%	2.80%	3.30%	2.94%	3.44%	2.79%
Fee Waiver and Expense Limitation	[2]	(2.33%)	(2.33%)	(2.33%)	(2.33%)	(2.33%)	(2.34%)
Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation		0.86%	0.47%	0.97%	0.61%	1.11%	0.45%

Expense Example

This Example is intended to help you compare the cost of investing in the Portfolio with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in Class A, Institutional, Service, Investor, Class R and/or Class R6 Shares of the Portfolio for the time periods indicated and then redeem all of your Class A, Institutional, Service, Investor, Class R and/or Class R6 Shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Portfolio’s operating expenses remain the same (except that the Example incorporates the fee waiver and expense limitation arrangements for only the first year). Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example - Goldman Sachs Target Date 2060 Portfolio - USD ($)	1 Year	3 Years
Class A Shares	633	1,272
Institutional Shares	48	646
Service Shares	99	797
Investor Shares	62	689
Class R Shares	113	839
Class R6 Shares	46	642

Portfolio Turnover

The Portfolio may pay transaction costs when it buys and sells securities or instruments (i.e., “turns over” its portfolio). A high rate of portfolio turnover may result in increased transaction costs, including brokerage commissions, which must be borne by the Portfolio and its shareholders, and is also likely to result in higher short-term capital gains for taxable shareholders. These costs are not reflected in annual fund operating expenses or in the expense example above, but are reflected in the Portfolio’s performance. Because the Portfolio has not yet commenced operations as of the date of the Prospectus, there is no portfolio turnover information quoted for the Portfolio.

Principal Strategy

The Portfolio employs an asset allocation strategy designed for investors who plan to retire and to begin gradually withdrawing their investment from the Portfolio beginning in approximately 2060 (the “Target Date”). The Portfolio is managed for an investor planning to retire at the age of 65 on or around the Target Date.

The Portfolio generally seeks to achieve its investment objective by investing in shares of exchange-traded funds (“Underlying ETFs”) and other registered investment companies (collectively, the “Underlying Funds”), according to an asset allocation strategy, developed by Madison Asset Management, LLC (the “Sub-Adviser”) who is unaffiliated with the Investment Adviser, for investors planning to retire in or within a few years of 2060. Over time, the Portfolio’s asset allocation will become more conservative until it reaches approximately 10-30% in equity funds and 70-90% in fixed income funds at the Target Date as illustrated in the graph below. After the Target Date, and as also illustrated in the graph below, the Portfolio’s asset allocation targets are expected to remain within these approximate ranges.



The asset allocation strategy is designed to reduce the volatility of investment returns in the later years while still providing the potential for higher total returns over the target period. Market conditions and the perceived value of securities will change as the investor moves across the glide path. Although the actual allocations may vary, the chart below illustrates the expected strategic asset allocation of the glide path and the tactical allocation ranges of the core asset classes and sub-asset classes.

YEARS TO TARGET DATE	40+	35	30	25	20	15	10	5	0	–5	–10
Strategic Allocations
Equity	85%	80%	75%	70%	65%	60%	55%	38%	20%	20%	20%
US Equity	60%	56%	53%	49%	46%	42%	39%	26%	14%	14%	14%
Non-US Developed Equities	26%	24%	23%	21%	20%	18%	17%	11%	6%	6%	6%
Fixed Income	15%	20%	25%	30%	35%	40%	45%	63%	80%	80%	80%
Tactical Allocation Ranges
Equity	75-95%	70-90%	65-85%	60-80%	55-75%	50-70%	45-65%	28-48%	10-30%	10-30%	10-30%
US Equity	45-86%	42-81%	39-77%	36-72%	33-68%	30-63%	27-59%	17-43%	6-27%	6-27%	6-27%
Non-US Equities	8-38%	7-36%	7-34%	6-32%	6-30%	5-28%	5-26%	3-19%	1-12%	1-12%	1-12%
Fixed Income	5-25%	10-30%	15-35%	20-40%	25-45%	30-50%	35-55%	53-73%	70-90%	70-90%	70-90%
Sub-Asset Classes and Alternatives
Emerging Markets Equities	0-19%	0-18%	0-17%	0-16%	0-15%	0-14%	0-13%	0-10%	0-6%	0-6%	0-6%
Real Estate	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%
Commodities	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%
Other Alternative Strategies	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%

Note: Above allocations may not sum to total due to rounding.

On a periodic basis, the Sub-Adviser will evaluate and may revise the Portfolio’s asset allocation, including revising the asset class weightings and adding and/or removing Underlying Funds. There will be times when the perceived value of equity and/or fixed income securities are stretched (or depressed) and the opportunity to proactively protect against (or take advantage of) these opportunities necessitates an ability to deviate from the glide path’s strategic target. In order to attempt to capitalize on these periodic opportunities, the Sub-Adviser established a “tactical allocation range” that allows flexibility to increase or decrease exposure from the glide path’s strategic allocations. As a result, the Portfolio’s equity and fixed income asset allocation targets may range within the bounds of this tactical allocation range as illustrated in the chart above depending on the Sub-Adviser’s views of the appropriate mix of the Portfolio’s asset allocation based on then-current economic, market or other conditions, or factors unique to the Portfolio. Certain sub-asset classes, like real estate, commodities, and other alternative strategies, may be invested in using the tactical allocation range illustrated in the table above. The Sub-Adviser may also use the tactical allocation range to invest in certain other sub-asset classes within fixed income such as: domestic high yield non-investment grade securities (commonly referred to as “junk bonds”), inflation-linked securities, securities issued by foreign corporate and governmental issuers, sovereign and corporate debt securities of issuers in emerging market countries, convertible securities, and preferred stock. The Sub-Adviser will also monitor the Underlying Funds on an ongoing basis and may increase or decrease the Portfolio’s investment in one or more Underlying Funds. The Underlying Fund selections are made based on several considerations, including the Portfolio’s style or asset class exposures, portfolio characteristics, risk profile, and investment process. With regard to investments in Underlying Funds that invest in debt securities, the Sub-Adviser seeks to select portfolios of securities with long-, intermediate- and short-term maturities. Although the Portfolio does not intend to concentrate its investments in a particular industry, the Portfolio may indirectly concentrate in a particular industry or group of industries through its aggregate investment in one or more Underlying Funds. The particular Underlying Funds in which the Portfolio may invest and the Portfolio’s targets and ranges will change from time to time without shareholder approval or notice.

The Sub-Adviser’s strategy is intended to represent a conservative investment strategy. The Sub-Adviser’s expectation is that the Portfolio may participate in market appreciation during bull markets and experience something less than full participation during bear markets compared with other funds holding more speculative and volatile securities. There is no assurance that the Sub-Adviser’s expectations regarding this investment strategy will be realized.

Although the Portfolio expects to pursue its investment objective utilizing its principal investment strategies regardless of market conditions, the Portfolio may invest up to 100% in money market instruments. To the extent the Portfolio engages in this temporary defensive position, the Portfolio’s ability to achieve its investment objective may be diminished.

Management Process

The Investment Adviser and the Portfolio have received an exemptive order from the Securities and Exchange Commission (“SEC”). Under the exemptive order, the Investment Adviser has the ultimate responsibility, subject to oversight by the Portfolio’s Board of Trustees, to oversee the Sub-Adviser and recommend its hiring, termination and replacement. The initial shareholder of the Portfolio approved the Portfolio’s operation in this manner and reliance by the Portfolio on this exemptive order.

Additional Information

The Portfolio’s benchmark index is the S&P Target Date To 2060+ Index (the “Index”).

Principal Risks of the Portfolio

Loss of money is a risk of investing in the Portfolio. An investment in the Portfolio is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any government agency. The Portfolio should not be relied upon as a complete investment program. Stated allocations may be subject to change. There can be no assurance that the Portfolio will achieve its investment objective. Investments in the Portfolio involve substantial risks which prospective investors should consider carefully before investing. Investors should also consider, in addition to his or her age or retirement date, other factors, including the investor’s risk tolerance, personal circumstances, and complete financial situation.

Asset Allocation Risk.  The Portfolio’s allocations to various asset classes and to the Underlying Funds may cause the Portfolio to underperform other funds with a similar investment objective.

Expenses.  By investing in the Underlying Funds indirectly through the Portfolio, the investor will incur not only a proportionate share of the expenses of the Underlying Funds held by the Portfolio (including operating costs and investment management fees), but also expenses of the Portfolio.

Inadequate Retirement Income.  An investment in the Portfolio is not guaranteed, and the Portfolio may experience losses, including losses near, at, or after the Target Date. There is no guarantee that the Portfolio will achieve sufficient capital appreciation to provide adequate income at and through retirement. Moreover, there is no guarantee that the Portfolio’s performance will keep pace with or exceed the rate of inflation, which may reduce the value of your investment over time.

Investing in the Underlying Funds.  The investments of the Portfolio may be concentrated in one or more Underlying Funds (including ETFs and other registered investment companies) subject to statutory limitations prescribed by the Investment Company Act of 1940, as amended (the “Investment Company Act”), or exemptive relief thereunder. The Portfolio’s investment performance is directly related to the investment performance of the Underlying Funds it holds. The Portfolio is subject to the risk factors associated with the investments of the Underlying Funds in direct proportion to the amount of assets allocated to each. If the Portfolio has a relative concentration of its portfolio in a single Underlying Fund, it may be more susceptible to adverse developments affecting that Underlying Fund, and may be more susceptible to losses because of these developments.

Investments of the Underlying Funds.  Because the Portfolio invests in the Underlying Funds, the Portfolio’s shareholders will be affected by the investment policies and practices of the Underlying Funds in direct proportion to the amount of assets the Portfolio allocates to those Underlying Funds. A strategy used by the Underlying Funds may fail to produce the intended results.

Large Shareholder Transactions Risk.  The Portfolio may experience adverse effects when certain large shareholders purchase or redeem large amounts of shares of the Portfolio. Such large shareholder redemptions may cause the Portfolio to sell portfolio securities at times when it would not otherwise do so, which may negatively impact the Portfolio’s NAV and liquidity. Similarly, large Portfolio share purchases may adversely affect the Portfolio’s performance to the extent that the Portfolio is delayed in investing new cash and is required to maintain a larger cash position than it ordinarily would. These transactions may also accelerate the realization of taxable income to shareholders if such sales of investments resulted in gains, and may also increase transaction costs. In addition, a large redemption could result in the Portfolio’s current expenses being allocated over a smaller asset base, leading to an increase in the Portfolio’s expense ratio.

Management Risk.  A strategy used by the Sub-Adviser may fail to produce the intended results.

Portfolio Turnover Rate Risk.  A high rate of portfolio turnover (100% or more) involves correspondingly greater expenses which must be borne by the Portfolio and its shareholders, and is also likely to result in short-term capital gains taxable to shareholders.

Underlying ETF Risk.  The Portfolio may invest in Underlying ETFs subject to statutory limitations prescribed by the Investment Company Act, or exemptive relief thereunder. An investment in an Underlying ETF generally presents the same primary risks as an investment in a conventional fund (i.e., one that is not exchange-traded) that has the same investment objectives, strategies and policies. In addition, an ETF may fail to accurately track the market segment or index that underlies its investment objective; however, the market price of the Underlying ETF’s shares may trade at a premium or a discount to their net asset value. The price of an Underlying ETF can fluctuate, and the Portfolio could lose money investing in an Underlying ETF.

Principal Risks of the Underlying Funds

Credit/Default Risk.  An issuer or guarantor of fixed income securities held by an Underlying Fund (which may have low credit ratings) may default on its obligation to pay interest and repay principal or default on any other obligation. Additionally, the credit quality of securities may deteriorate rapidly, which may impair an Underlying Fund’s liquidity and cause significant deterioration in NAV. These risks are more pronounced in connection with an Underlying Fund’s investments in non-investment grade fixed income securities.

Derivatives Risk.  An Underlying Fund’s use of options, forwards, futures, swaps, structured securities and other derivative instruments may result in losses. These instruments, which may pose risks in addition to and greater than those associated with investing directly in securities, currencies or other instruments, may be illiquid or less liquid, volatile, difficult to price and leveraged so that small changes in the value of the underlying instruments may produce disproportionate losses to the Underlying Fund. Certain derivatives are also subject to counterparty risk, which is the risk that the other party in the transaction will not fulfill its contractual obligations. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with investments in more traditional securities and instruments.

Foreign and Emerging Countries Risk.  Foreign securities may be subject to risk of loss because of more or less foreign government regulation, less public information and less economic, political and social stability in the countries in which the Portfolio invests. The imposition of exchange controls, sanctions, confiscations, trade restrictions (including tariffs) and other government restrictions by the United States and other governments, or from problems in share registration, settlement or custody, may also result in losses. Foreign risk also involves the risk of negative foreign currency rate fluctuations, which may cause the value of securities denominated in such foreign currency (or other instruments through which an Underlying Fund has exposure to foreign currencies) to decline in value. Currency exchange rates may fluctuate significantly over short periods of time. These risks may be more pronounced in connection with the Underlying Fund’s investments in securities of issuers located in emerging countries.

Geographic Risk.  If an Underlying Fund focuses its investments in issuers located in a particular country or region, the Underlying Fund may be subjected, to a greater extent than if investments were less focused, to the risks of volatile economic cycles and/or conditions and developments that may be particular to that country or region, such as: adverse securities markets; adverse exchange rates; adverse social, political, regulatory, economic, business, environmental or other developments; or natural disasters.

Interest Rate Risk.  When interest rates increase, fixed income securities or instruments held by an Underlying Fund will generally decline in value. Long-term fixed income securities or instruments will normally have more price volatility because of this risk than short-term fixed income securities or instruments. The risks associated with increasing rates are heightened given that interest rates are near historic lows, but may be expected to increase in the future with unpredictable effects on the markets and an Underlying Fund’s investments. Fluctuations in interest rates may also affect the liquidity of fixed income securities and instruments held by an Underlying Fund.

Leverage Risk.  Borrowing and the use of derivatives may result in leverage and may make an Underlying Fund more volatile. The use of leverage may cause an Underlying Fund to liquidate portfolio positions to satisfy its obligations or to meet asset segregation requirements when it may not be advantageous to do so. The use of leverage by an Underlying Fund can substantially increase the adverse impact to which its investment portfolio may be subject.

Liquidity Risk.  An Underlying Fund may make investments that are illiquid or that may become less liquid in response to market developments or adverse investor perceptions. Illiquid investments may be more difficult to value. Liquidity risk may also refer to the risk that an Underlying Fund will not be able to pay redemption proceeds within the allowable time period because of unusual market conditions, an unusually high volume of redemption requests or other reasons. To meet redemption requests, an Underlying Fund may be forced to sell securities, at an unfavorable time and/or under unfavorable conditions. Liquidity risk may be the result of, among other things, the reduced number and capacity of traditional market participants to make a market in fixed income securities or the lack of an active market. The potential for liquidity risk may be magnified by a rising interest rate environment or other circumstances where investor redemptions from fixed income mutual funds may be higher than normal, potentially causing increased supply in the market due to selling activity.

Market Risk.  The value of the securities in which an Underlying Fund invests may go up or down in response to the prospects of individual companies, particular sectors or governments and/or general economic conditions throughout the world due to increasingly interconnected global economies and financial markets.

Mid-Cap and Small-Cap Risk.  Certain of the Underlying Funds may make investments mid-capitalization and small-capitalization companies involve greater risks than those associated with larger, more established companies. These securities may be subject to more abrupt or erratic price movements and may lack sufficient market liquidity, and these issuers often face greater business risks.

Mortgage-Backed and Other Asset-Backed Securities Risk.  Mortgage-related and other asset-backed securities are subject to certain additional risks, including “extension risk” (i.e., in periods of rising interest rates, issuers may pay principal later than expected) and “prepayment risk” (i.e., in periods of declining interest rates, issuers may pay principal more quickly than expected, causing an Underlying Fund to reinvest proceeds at lower prevailing interest rates). Mortgage-backed securities offered by non-governmental issuers are subject to other risks as well, including failures of private insurers to meet their obligations and unexpectedly high rates of default on the mortgages backing the securities. Other asset-backed securities are subject to risks similar to those associated with mortgage-backed securities, as well as risks associated with the nature and servicing of the assets backing the securities. Asset-backed securities may not have the benefit of a security interest in collateral comparable to that of mortgage assets, resulting in additional credit risk.

Non-Investment Grade Investments Risk.  Non-investment grade fixed income securities and unrated securities of comparable credit quality (commonly known as “junk bonds”) are considered speculative and are subject to the increased risk of an issuer’s inability to meet principal and interest payment obligations. These securities may be subject to greater price volatility due to such factors as specific issuer developments, interest rate sensitivity, negative perceptions of the junk bond markets generally and less liquidity.

Stock Risk.  Stock prices have historically risen and fallen in periodic cycles. U.S. and foreign stock markets have experienced periods of substantial price volatility in the past and may do so again in the future.

U.S. Government Securities Risk.  The U.S. government may not provide financial support to U.S. government agencies, instrumentalities or sponsored enterprises if it is not obligated to do so by law. U.S. Government Securities issued by those agencies, instrumentalities and sponsored enterprises, including those issued by the Federal National Mortgage Association (“Fannie Mae”), Federal Home Loan Mortgage Corporation (“Freddie Mac”) and the Federal Home Loan Banks, are neither issued nor guaranteed by the U.S. Treasury and, therefore, are not backed by the full faith and credit of the United States. The maximum potential liability of the issuers of some U.S. Government Securities held by an Underlying Fund may greatly exceed their current resources, including any legal right to support from the U.S. Treasury. It is possible that issuers of U.S. Government Securities will not have the funds to meet their payment obligations in the future.

Performance

Because the Portfolio has not yet commenced operations as of the date of the Prospectus, there is no performance information quoted for the Portfolio.

[1] The Portfolio’s “Other Expenses” have been estimated to reflect expenses expected to be incurred during the first fiscal year.

[2] The Investment Adviser has agreed to reduce or limit “Other Expenses” (excluding acquired (underlying) fund fees and expenses, transfer agency fees and expenses, service fees, shareholder administration fees, taxes, interest, brokerage fees, expenses of shareholder meetings, litigation and indemnification, and extraordinary expenses) to 0.014% of the Portfolio’s average daily net assets. Additionally, Goldman Sachs & Co. LLC (“Goldman Sachs”), the Portfolio’s transfer agent, has agreed to waive a portion of its transfer agency fee (a component of “Other Expenses”) equal to 0.01% as an annual percentage rate of the average daily net assets attributable to Class R6 Shares of the Portfolio. These arrangements will remain in effect through at least April 30, 2019, and prior to such date, the Investment Adviser and Goldman Sachs (as applicable) may not terminate the arrangements without the approval of the Board of Trustees.

XML

Label

Element

Value

Risk/Return:

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Registrant Name

dei_EntityRegistrantName

Goldman Sachs Trust II

Prospectus Date

rr_ProspectusDate

May 21, 2018

Goldman Sachs Target Date 2060 Portfolio

Risk/Return:

rr_RiskReturnAbstract

Risk/Return [Heading]

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Goldman Sachs Target Date 2060 Portfolio—Summary

Objective [Heading]

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Investment Objective

Objective, Primary [Text Block]

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The Goldman Sachs Target Date 2060 Portfolio (the “Portfolio”) seeks to provide capital appreciation and current income consistent with its current asset allocation.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses of the Portfolio

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 Portfolio. You may qualify for sales charge discounts on purchases of Class A Shares if you invest at least $50,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 82 and in Appendix C—Additional Information About Sales Charge Variations, Waivers and Discounts on page 126 of the Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-133 of the Portfolio’s Statement of Additional Information (“SAI”).

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees
(fees paid directly from your investment)

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Portfolio Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

April 30, 2019

Portfolio Turnover [Heading]

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Portfolio Turnover

Portfolio Turnover [Text Block]

rr_PortfolioTurnoverTextBlock

The Portfolio may pay transaction costs when it buys and sells securities or instruments (i.e., “turns over” its portfolio). A high rate of portfolio turnover may result in increased transaction costs, including brokerage commissions, which must be borne by the Portfolio and its shareholders, and is also likely to result in higher short-term capital gains for taxable shareholders. These costs are not reflected in annual fund operating expenses or in the expense example above, but are reflected in the Portfolio’s performance. Because the Portfolio has not yet commenced operations as of the date of the Prospectus, there is no portfolio turnover information quoted for the Portfolio.

Expense Breakpoint Discounts [Text]

rr_ExpenseBreakpointDiscounts

You may qualify for sales charge discounts on purchases of Class A Shares if you invest at least $50,000 in Goldman Sachs Funds. More information about these and other discounts is available from your financial professional and in “Shareholder Guide—Common Questions Applicable to the Purchase of Class A Shares” beginning on page 82 and in Appendix C—Additional Information About Sales Charge Variations, Waivers and Discounts on page 126 of the Prospectus and “Other Information Regarding Maximum Sales Charge, Purchases, Redemptions, Exchanges and Dividends” beginning on page B-133 of the Portfolio’s Statement of Additional Information (“SAI”).

Expense Breakpoint, Minimum Investment Required [Amount]

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

$ 50,000

Other Expenses, New Fund, Based on Estimates [Text]

rr_OtherExpensesNewFundBasedOnEstimates

The Portfolio’s “Other Expenses” have been estimated to reflect expenses expected to be incurred during the first fiscal year.

Expense Example [Heading]

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Expense Example

Expense Example Narrative [Text Block]

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This Example is intended to help you compare the cost of investing in the Portfolio with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in Class A, Institutional, Service, Investor, Class R and/or Class R6 Shares of the Portfolio for the time periods indicated and then redeem all of your Class A, Institutional, Service, Investor, Class R and/or Class R6 Shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Portfolio’s operating expenses remain the same (except that the Example incorporates the fee waiver and expense limitation arrangements for only the first year). Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Strategy [Heading]

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Principal Strategy

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

The Portfolio employs an asset allocation strategy designed for investors who plan to retire and to begin gradually withdrawing their investment from the Portfolio beginning in approximately 2060 (the “Target Date”). The Portfolio is managed for an investor planning to retire at the age of 65 on or around the Target Date.

The Portfolio generally seeks to achieve its investment objective by investing in shares of exchange-traded funds (“Underlying ETFs”) and other registered investment companies (collectively, the “Underlying Funds”), according to an asset allocation strategy, developed by Madison Asset Management, LLC (the “Sub-Adviser”) who is unaffiliated with the Investment Adviser, for investors planning to retire in or within a few years of 2060. Over time, the Portfolio’s asset allocation will become more conservative until it reaches approximately 10-30% in equity funds and 70-90% in fixed income funds at the Target Date as illustrated in the graph below. After the Target Date, and as also illustrated in the graph below, the Portfolio’s asset allocation targets are expected to remain within these approximate ranges.



The asset allocation strategy is designed to reduce the volatility of investment returns in the later years while still providing the potential for higher total returns over the target period. Market conditions and the perceived value of securities will change as the investor moves across the glide path. Although the actual allocations may vary, the chart below illustrates the expected strategic asset allocation of the glide path and the tactical allocation ranges of the core asset classes and sub-asset classes.

YEARS TO TARGET DATE	40+	35	30	25	20	15	10	5	0	–5	–10
Strategic Allocations
Equity	85%	80%	75%	70%	65%	60%	55%	38%	20%	20%	20%
US Equity	60%	56%	53%	49%	46%	42%	39%	26%	14%	14%	14%
Non-US Developed Equities	26%	24%	23%	21%	20%	18%	17%	11%	6%	6%	6%
Fixed Income	15%	20%	25%	30%	35%	40%	45%	63%	80%	80%	80%
Tactical Allocation Ranges
Equity	75-95%	70-90%	65-85%	60-80%	55-75%	50-70%	45-65%	28-48%	10-30%	10-30%	10-30%
US Equity	45-86%	42-81%	39-77%	36-72%	33-68%	30-63%	27-59%	17-43%	6-27%	6-27%	6-27%
Non-US Equities	8-38%	7-36%	7-34%	6-32%	6-30%	5-28%	5-26%	3-19%	1-12%	1-12%	1-12%
Fixed Income	5-25%	10-30%	15-35%	20-40%	25-45%	30-50%	35-55%	53-73%	70-90%	70-90%	70-90%
Sub-Asset Classes and Alternatives
Emerging Markets Equities	0-19%	0-18%	0-17%	0-16%	0-15%	0-14%	0-13%	0-10%	0-6%	0-6%	0-6%
Real Estate	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%
Commodities	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%
Other Alternative Strategies	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%	0-10%

Note: Above allocations may not sum to total due to rounding.

On a periodic basis, the Sub-Adviser will evaluate and may revise the Portfolio’s asset allocation, including revising the asset class weightings and adding and/or removing Underlying Funds. There will be times when the perceived value of equity and/or fixed income securities are stretched (or depressed) and the opportunity to proactively protect against (or take advantage of) these opportunities necessitates an ability to deviate from the glide path’s strategic target. In order to attempt to capitalize on these periodic opportunities, the Sub-Adviser established a “tactical allocation range” that allows flexibility to increase or decrease exposure from the glide path’s strategic allocations. As a result, the Portfolio’s equity and fixed income asset allocation targets may range within the bounds of this tactical allocation range as illustrated in the chart above depending on the Sub-Adviser’s views of the appropriate mix of the Portfolio’s asset allocation based on then-current economic, market or other conditions, or factors unique to the Portfolio. Certain sub-asset classes, like real estate, commodities, and other alternative strategies, may be invested in using the tactical allocation range illustrated in the table above. The Sub-Adviser may also use the tactical allocation range to invest in certain other sub-asset classes within fixed income such as: domestic high yield non-investment grade securities (commonly referred to as “junk bonds”), inflation-linked securities, securities issued by foreign corporate and governmental issuers, sovereign and corporate debt securities of issuers in emerging market countries, convertible securities, and preferred stock. The Sub-Adviser will also monitor the Underlying Funds on an ongoing basis and may increase or decrease the Portfolio’s investment in one or more Underlying Funds. The Underlying Fund selections are made based on several considerations, including the Portfolio’s style or asset class exposures, portfolio characteristics, risk profile, and investment process. With regard to investments in Underlying Funds that invest in debt securities, the Sub-Adviser seeks to select portfolios of securities with long-, intermediate- and short-term maturities. Although the Portfolio does not intend to concentrate its investments in a particular industry, the Portfolio may indirectly concentrate in a particular industry or group of industries through its aggregate investment in one or more Underlying Funds. The particular Underlying Funds in which the Portfolio may invest and the Portfolio’s targets and ranges will change from time to time without shareholder approval or notice.

The Sub-Adviser’s strategy is intended to represent a conservative investment strategy. The Sub-Adviser’s expectation is that the Portfolio may participate in market appreciation during bull markets and experience something less than full participation during bear markets compared with other funds holding more speculative and volatile securities. There is no assurance that the Sub-Adviser’s expectations regarding this investment strategy will be realized.

Although the Portfolio expects to pursue its investment objective utilizing its principal investment strategies regardless of market conditions, the Portfolio may invest up to 100% in money market instruments. To the extent the Portfolio engages in this temporary defensive position, the Portfolio’s ability to achieve its investment objective may be diminished.

Management Process

The Investment Adviser and the Portfolio have received an exemptive order from the Securities and Exchange Commission (“SEC”). Under the exemptive order, the Investment Adviser has the ultimate responsibility, subject to oversight by the Portfolio’s Board of Trustees, to oversee the Sub-Adviser and recommend its hiring, termination and replacement. The initial shareholder of the Portfolio approved the Portfolio’s operation in this manner and reliance by the Portfolio on this exemptive order.

Additional Information

The Portfolio’s benchmark index is the S&P Target Date To 2060+ Index (the “Index”).

Risk [Heading]

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Principal Risks of the Portfolio

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

Loss of money is a risk of investing in the Portfolio. An investment in the Portfolio is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any government agency. The Portfolio should not be relied upon as a complete investment program. Stated allocations may be subject to change. There can be no assurance that the Portfolio will achieve its investment objective. Investments in the Portfolio involve substantial risks which prospective investors should consider carefully before investing. Investors should also consider, in addition to his or her age or retirement date, other factors, including the investor’s risk tolerance, personal circumstances, and complete financial situation.

Asset Allocation Risk.  The Portfolio’s allocations to various asset classes and to the Underlying Funds may cause the Portfolio to underperform other funds with a similar investment objective.

Expenses.  By investing in the Underlying Funds indirectly through the Portfolio, the investor will incur not only a proportionate share of the expenses of the Underlying Funds held by the Portfolio (including operating costs and investment management fees), but also expenses of the Portfolio.

Inadequate Retirement Income.  An investment in the Portfolio is not guaranteed, and the Portfolio may experience losses, including losses near, at, or after the Target Date. There is no guarantee that the Portfolio will achieve sufficient capital appreciation to provide adequate income at and through retirement. Moreover, there is no guarantee that the Portfolio’s performance will keep pace with or exceed the rate of inflation, which may reduce the value of your investment over time.

Investing in the Underlying Funds.  The investments of the Portfolio may be concentrated in one or more Underlying Funds (including ETFs and other registered investment companies) subject to statutory limitations prescribed by the Investment Company Act of 1940, as amended (the “Investment Company Act”), or exemptive relief thereunder. The Portfolio’s investment performance is directly related to the investment performance of the Underlying Funds it holds. The Portfolio is subject to the risk factors associated with the investments of the Underlying Funds in direct proportion to the amount of assets allocated to each. If the Portfolio has a relative concentration of its portfolio in a single Underlying Fund, it may be more susceptible to adverse developments affecting that Underlying Fund, and may be more susceptible to losses because of these developments.

Investments of the Underlying Funds.  Because the Portfolio invests in the Underlying Funds, the Portfolio’s shareholders will be affected by the investment policies and practices of the Underlying Funds in direct proportion to the amount of assets the Portfolio allocates to those Underlying Funds. A strategy used by the Underlying Funds may fail to produce the intended results.

Large Shareholder Transactions Risk.  The Portfolio may experience adverse effects when certain large shareholders purchase or redeem large amounts of shares of the Portfolio. Such large shareholder redemptions may cause the Portfolio to sell portfolio securities at times when it would not otherwise do so, which may negatively impact the Portfolio’s NAV and liquidity. Similarly, large Portfolio share purchases may adversely affect the Portfolio’s performance to the extent that the Portfolio is delayed in investing new cash and is required to maintain a larger cash position than it ordinarily would. These transactions may also accelerate the realization of taxable income to shareholders if such sales of investments resulted in gains, and may also increase transaction costs. In addition, a large redemption could result in the Portfolio’s current expenses being allocated over a smaller asset base, leading to an increase in the Portfolio’s expense ratio.

Management Risk.  A strategy used by the Sub-Adviser may fail to produce the intended results.

Portfolio Turnover Rate Risk.  A high rate of portfolio turnover (100% or more) involves correspondingly greater expenses which must be borne by the Portfolio and its shareholders, and is also likely to result in short-term capital gains taxable to shareholders.

Underlying ETF Risk.  The Portfolio may invest in Underlying ETFs subject to statutory limitations prescribed by the Investment Company Act, or exemptive relief thereunder. An investment in an Underlying ETF generally presents the same primary risks as an investment in a conventional fund (i.e., one that is not exchange-traded) that has the same investment objectives, strategies and policies. In addition, an ETF may fail to accurately track the market segment or index that underlies its investment objective; however, the market price of the Underlying ETF’s shares may trade at a premium or a discount to their net asset value. The price of an Underlying ETF can fluctuate, and the Portfolio could lose money investing in an Underlying ETF.

Principal Risks of the Underlying Funds

Credit/Default Risk.  An issuer or guarantor of fixed income securities held by an Underlying Fund (which may have low credit ratings) may default on its obligation to pay interest and repay principal or default on any other obligation. Additionally, the credit quality of securities may deteriorate rapidly, which may impair an Underlying Fund’s liquidity and cause significant deterioration in NAV. These risks are more pronounced in connection with an Underlying Fund’s investments in non-investment grade fixed income securities.

Derivatives Risk.  An Underlying Fund’s use of options, forwards, futures, swaps, structured securities and other derivative instruments may result in losses. These instruments, which may pose risks in addition to and greater than those associated with investing directly in securities, currencies or other instruments, may be illiquid or less liquid, volatile, difficult to price and leveraged so that small changes in the value of the underlying instruments may produce disproportionate losses to the Underlying Fund. Certain derivatives are also subject to counterparty risk, which is the risk that the other party in the transaction will not fulfill its contractual obligations. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with investments in more traditional securities and instruments.

Foreign and Emerging Countries Risk.  Foreign securities may be subject to risk of loss because of more or less foreign government regulation, less public information and less economic, political and social stability in the countries in which the Portfolio invests. The imposition of exchange controls, sanctions, confiscations, trade restrictions (including tariffs) and other government restrictions by the United States and other governments, or from problems in share registration, settlement or custody, may also result in losses. Foreign risk also involves the risk of negative foreign currency rate fluctuations, which may cause the value of securities denominated in such foreign currency (or other instruments through which an Underlying Fund has exposure to foreign currencies) to decline in value. Currency exchange rates may fluctuate significantly over short periods of time. These risks may be more pronounced in connection with the Underlying Fund’s investments in securities of issuers located in emerging countries.

Geographic Risk.  If an Underlying Fund focuses its investments in issuers located in a particular country or region, the Underlying Fund may be subjected, to a greater extent than if investments were less focused, to the risks of volatile economic cycles and/or conditions and developments that may be particular to that country or region, such as: adverse securities markets; adverse exchange rates; adverse social, political, regulatory, economic, business, environmental or other developments; or natural disasters.

Interest Rate Risk.  When interest rates increase, fixed income securities or instruments held by an Underlying Fund will generally decline in value. Long-term fixed income securities or instruments will normally have more price volatility because of this risk than short-term fixed income securities or instruments. The risks associated with increasing rates are heightened given that interest rates are near historic lows, but may be expected to increase in the future with unpredictable effects on the markets and an Underlying Fund’s investments. Fluctuations in interest rates may also affect the liquidity of fixed income securities and instruments held by an Underlying Fund.

Leverage Risk.  Borrowing and the use of derivatives may result in leverage and may make an Underlying Fund more volatile. The use of leverage may cause an Underlying Fund to liquidate portfolio positions to satisfy its obligations or to meet asset segregation requirements when it may not be advantageous to do so. The use of leverage by an Underlying Fund can substantially increase the adverse impact to which its investment portfolio may be subject.

Liquidity Risk.  An Underlying Fund may make investments that are illiquid or that may become less liquid in response to market developments or adverse investor perceptions. Illiquid investments may be more difficult to value. Liquidity risk may also refer to the risk that an Underlying Fund will not be able to pay redemption proceeds within the allowable time period because of unusual market conditions, an unusually high volume of redemption requests or other reasons. To meet redemption requests, an Underlying Fund may be forced to sell securities, at an unfavorable time and/or under unfavorable conditions. Liquidity risk may be the result of, among other things, the reduced number and capacity of traditional market participants to make a market in fixed income securities or the lack of an active market. The potential for liquidity risk may be magnified by a rising interest rate environment or other circumstances where investor redemptions from fixed income mutual funds may be higher than normal, potentially causing increased supply in the market due to selling activity.

Market Risk.  The value of the securities in which an Underlying Fund invests may go up or down in response to the prospects of individual companies, particular sectors or governments and/or general economic conditions throughout the world due to increasingly interconnected global economies and financial markets.

Mid-Cap and Small-Cap Risk.  Certain of the Underlying Funds may make investments mid-capitalization and small-capitalization companies involve greater risks than those associated with larger, more established companies. These securities may be subject to more abrupt or erratic price movements and may lack sufficient market liquidity, and these issuers often face greater business risks.

Mortgage-Backed and Other Asset-Backed Securities Risk.  Mortgage-related and other asset-backed securities are subject to certain additional risks, including “extension risk” (i.e., in periods of rising interest rates, issuers may pay principal later than expected) and “prepayment risk” (i.e., in periods of declining interest rates, issuers may pay principal more quickly than expected, causing an Underlying Fund to reinvest proceeds at lower prevailing interest rates). Mortgage-backed securities offered by non-governmental issuers are subject to other risks as well, including failures of private insurers to meet their obligations and unexpectedly high rates of default on the mortgages backing the securities. Other asset-backed securities are subject to risks similar to those associated with mortgage-backed securities, as well as risks associated with the nature and servicing of the assets backing the securities. Asset-backed securities may not have the benefit of a security interest in collateral comparable to that of mortgage assets, resulting in additional credit risk.

Non-Investment Grade Investments Risk.  Non-investment grade fixed income securities and unrated securities of comparable credit quality (commonly known as “junk bonds”) are considered speculative and are subject to the increased risk of an issuer’s inability to meet principal and interest payment obligations. These securities may be subject to greater price volatility due to such factors as specific issuer developments, interest rate sensitivity, negative perceptions of the junk bond markets generally and less liquidity.

Stock Risk.  Stock prices have historically risen and fallen in periodic cycles. U.S. and foreign stock markets have experienced periods of substantial price volatility in the past and may do so again in the future.

U.S. Government Securities Risk.  The U.S. government may not provide financial support to U.S. government agencies, instrumentalities or sponsored enterprises if it is not obligated to do so by law. U.S. Government Securities issued by those agencies, instrumentalities and sponsored enterprises, including those issued by the Federal National Mortgage Association (“Fannie Mae”), Federal Home Loan Mortgage Corporation (“Freddie Mac”) and the Federal Home Loan Banks, are neither issued nor guaranteed by the U.S. Treasury and, therefore, are not backed by the full faith and credit of the United States. The maximum potential liability of the issuers of some U.S. Government Securities held by an Underlying Fund may greatly exceed their current resources, including any legal right to support from the U.S. Treasury. It is possible that issuers of U.S. Government Securities will not have the funds to meet their payment obligations in the future.

Risk Lose Money [Text]

rr_RiskLoseMoney

Loss of money is a risk of investing in the Portfolio.

Risk Not Insured Depository Institution [Text]

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An investment in the Portfolio is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) or any government agency.

Bar Chart and Performance Table [Heading]

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Performance

Performance Narrative [Text Block]

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Because the Portfolio has not yet commenced operations as of the date of the Prospectus, there is no performance information quoted for the Portfolio.

Performance One Year or Less [Text]

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Because the Portfolio has not yet commenced operations as of the date of the Prospectus, there is no performance information quoted for the Portfolio.

Goldman Sachs Target Date 2060 Portfolio | Class A

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

5.50%

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

2.52%

Other Expenses

rr_OtherExpensesOverAssets

2.52%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

3.19%

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(2.33%)

^[2]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.86%

1 Year

rr_ExpenseExampleYear01

$ 633

3 Years

rr_ExpenseExampleYear03

$ 1,272

Goldman Sachs Target Date 2060 Portfolio | Institutional

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

2.38%

Other Expenses

rr_OtherExpensesOverAssets

2.38%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

2.80%

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(2.33%)

^[2]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.47%

1 Year

rr_ExpenseExampleYear01

$ 48

3 Years

rr_ExpenseExampleYear03

$ 646

Goldman Sachs Target Date 2060 Portfolio | Service

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

0.25%

All Other Expenses

rr_Component2OtherExpensesOverAssets

2.38%

Other Expenses

rr_OtherExpensesOverAssets

2.63%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

3.30%

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(2.33%)

^[2]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.97%

1 Year

rr_ExpenseExampleYear01

$ 99

3 Years

rr_ExpenseExampleYear03

$ 797

Goldman Sachs Target Date 2060 Portfolio | Investor

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

2.52%

Other Expenses

rr_OtherExpensesOverAssets

2.52%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

2.94%

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(2.33%)

^[2]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.61%

1 Year

rr_ExpenseExampleYear01

$ 62

3 Years

rr_ExpenseExampleYear03

$ 689

Goldman Sachs Target Date 2060 Portfolio | Class R

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.50%

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

2.52%

Other Expenses

rr_OtherExpensesOverAssets

2.52%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

3.44%

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(2.33%)

^[2]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

1.11%

1 Year

rr_ExpenseExampleYear01

$ 113

3 Years

rr_ExpenseExampleYear03

$ 839

Goldman Sachs Target Date 2060 Portfolio | Class R6

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Shareholder Administration Fees

rr_Component1OtherExpensesOverAssets

none

All Other Expenses

rr_Component2OtherExpensesOverAssets

2.37%

Other Expenses

rr_OtherExpensesOverAssets

2.37%

^[1]

Acquired (Underlying) Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.17%

Total Annual Portfolio Operating Expenses

rr_ExpensesOverAssets

2.79%

Fee Waiver and Expense Limitation

rr_FeeWaiverOrReimbursementOverAssets

(2.34%)

^[2]

Total Annual Portfolio Operating Expenses After Fee Waiver and Expense Limitation

rr_NetExpensesOverAssets

0.45%

1 Year

rr_ExpenseExampleYear01

$ 46

3 Years

rr_ExpenseExampleYear03

$ 642

[1] The Portfolio’s “Other Expenses” have been estimated to reflect expenses expected to be incurred during the first fiscal year.

[2] The Investment Adviser has agreed to reduce or limit “Other Expenses” (excluding acquired (underlying) fund fees and expenses, transfer agency fees and expenses, service fees, shareholder administration fees, taxes, interest, brokerage fees, expenses of shareholder meetings, litigation and indemnification, and extraordinary expenses) to 0.014% of the Portfolio’s average daily net assets. Additionally, Goldman Sachs & Co. LLC (“Goldman Sachs”), the Portfolio’s transfer agent, has agreed to waive a portion of its transfer agency fee (a component of “Other Expenses”) equal to 0.01% as an annual percentage rate of the average daily net assets attributable to Class R6 Shares of the Portfolio. These arrangements will remain in effect through at least April 30, 2019, and prior to such date, the Investment Adviser and Goldman Sachs (as applicable) may not terminate the arrangements without the approval of the Board of Trustees.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	Goldman Sachs Trust II
Prospectus Date	rr_ProspectusDate	May 21, 2018
Document Creation Date	dei_DocumentCreationDate	May 21, 2018