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    <dei:EntityRegistrantName contextRef="Context_20260131_20260131" id="ixv-50523">Dreyfus Treasury Securities Cash Management</dei:EntityRegistrantName>
    <dei:DocumentEffectiveDate contextRef="Context_20260131_20260131" id="ixv-50524">2026-06-01</dei:DocumentEffectiveDate>
    <oef:ProspectusDate contextRef="Context_20260131_20260131" id="ixv-50525">2026-06-01</oef:ProspectusDate>
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      id="ixv-50526">DARXX</dei:TradingSymbol>
    <oef:RiskReturnHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary1Member"
      id="ixv-50527">Fund 
Summary</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary1Member"
      id="ixv-50528">Investment 
Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary1Member"
      id="ixv-50529">The fund seeks as high a level of current income 
as is consistent with the preservation of capital and the maintenance of liquidity.</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary1Member"
      id="ixv-50530">Fees 
and Expenses</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary1Member"
      id="ixv-1034">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; text-align:left; color:#000000; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
that you may pay if you buy, hold and sell shares of the fund.  &lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and examples below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:OperatingExpensesCaption
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary1Member"
      id="ixv-50531">Annual Fund Operating Expenses (expenses 
that you pay each year as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20260131_20260131_C000000257Member_S000000113Member_S000000113Summary1Member"
      decimals="INF"
      id="ixv-50533"
      unitRef="pure">0.0020</oef:ManagementFeesOverAssets>
    <oef:Component2OtherExpensesOverAssets
      contextRef="Context_20260131_20260131_C000000257Member_S000000113Member_S000000113Summary1Member"
      decimals="INF"
      id="ixv-50534"
      unitRef="pure">0.0010</oef:Component2OtherExpensesOverAssets>
    <oef:Component3OtherExpensesOverAssets
      contextRef="Context_20260131_20260131_C000000257Member_S000000113Member_S000000113Summary1Member"
      decimals="INF"
      id="ixv-50535"
      unitRef="pure">0.0001</oef:Component3OtherExpensesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20260131_20260131_C000000257Member_S000000113Member_S000000113Summary1Member"
      decimals="INF"
      id="ixv-50536"
      unitRef="pure">0.0011</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20260131_20260131_C000000257Member_S000000113Member_S000000113Summary1Member"
      decimals="INF"
      id="ixv-50537"
      unitRef="pure">0.0031</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20260131_20260131_C000000257Member_S000000113Member_S000000113Summary1Member"
      decimals="INF"
      id="_25_"
      unitRef="pure">-0.0003</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20260131_20260131_C000000257Member_S000000113Member_S000000113Summary1Member"
      decimals="INF"
      id="ixv-50539"
      unitRef="pure">0.0028</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary1Member"
      id="ixv-50540">Example</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary1Member"
      id="ixv-1102">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;The 
Example is intended to help you compare the cost of investing in the fund with the cost of investing 
in other mutual funds.  The Example assumes that you invest $10,000 in the fund for the time periods 
indicated and then hold or redeem all of your shares at the end of those periods.  The Example also assumes 
that your investment has a 5% return each year and that the fund's operating expenses remain the same. 
 The one-year example and the first year of the three-, five- and ten-years examples are based on net 
operating expenses, which reflect the contractual undertaking by BNY Mellon Investment Adviser, Inc. 
 Although your actual costs may be higher or lower, based on these assumptions your costs would be:&lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20260131_20260131_C000000257Member_S000000113Member_S000000113Summary1Member"
      decimals="INF"
      id="ixv-50541"
      unitRef="usd">29</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20260131_20260131_C000000257Member_S000000113Member_S000000113Summary1Member"
      decimals="INF"
      id="ixv-50542"
      unitRef="usd">97</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20260131_20260131_C000000257Member_S000000113Member_S000000113Summary1Member"
      decimals="INF"
      id="ixv-50543"
      unitRef="usd">171</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20260131_20260131_C000000257Member_S000000113Member_S000000113Summary1Member"
      decimals="INF"
      id="ixv-50544"
      unitRef="usd">390</oef:ExpenseExampleYear10>
    <oef:StrategyHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary1Member"
      id="ixv-50545">Principal Investment Strategy</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary1Member"
      id="ixv-1135">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;The 
fund pursues its investment objective by investing only in U.S. Treasury securities, including those 
with floating or variable rates of interest, and cash.  The fund is a money market fund subject to the 
maturity, quality, liquidity and diversification requirements of Rule 2a-7 under the Investment Company 
Act of 1940, as amended, and seeks to maintain a stable share price of $1.00.  &lt;/p&gt;&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;The 
fund is a "government money market fund," as that term is defined in Rule 2a-7, and as such is required 
to invest at least 99.5% of its total assets in securities issued or guaranteed as to principal and interest 
by the U.S. government or its agencies or instrumentalities, repurchase agreements collateralized solely 
by cash and/or government securities, and cash.  The fund typically invests exclusively in U.S. Treasury 
securities.  &lt;/p&gt;&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;By investing exclusively in U.S. Treasury securities, income 
paid by the fund generally will be exempt from state and local taxes.  Because rules regarding the state 
and local taxation of dividend income can differ from state to state, &lt;/p&gt;&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;investors are urged to consult their tax advisers about the taxation of the fund's 
dividend income in their state and locality.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_PrincipalRisks2_S000000113Summary1Member"
      id="ixv-1144">&lt;div style="border-bottom:0.25pt; border-bottom-style:solid; border-bottom-color:#000000; padding:0pt 0pt 1pt 0pt;"&gt;&lt;div style="font-size:12.0pt; font-family:Arial; text-align:left; color:#000000; font-weight:bold;"&gt;&lt;span style="font-size:12.0pt; font-family:Arial; font-style:normal; color:#000000; font-weight:bold; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/div&gt;&lt;/div&gt;&lt;p style="margin-top:revert; margin-bottom:revert;font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;An investment in the fund is not a bank account or a bank deposit.  It is not 
insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency. 
 You could lose money by investing in the fund.  Although the fund seeks to preserve the value of your 
investment at $1.00 per share, it cannot guarantee it will do so.  The fund's yield will fluctuate as 
the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in securities 
with different interest rates.  BNY Mellon Investment Adviser, Inc. and its affiliates are not required 
to reimburse the fund for losses, and you should not expect that BNY Mellon Investment Adviser, Inc. 
or its affiliates will provide financial support to the fund at any time, including during periods of 
market stress.  The fund is subject to the following principal risks:&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_RiskNotInsuredMember_S000000113Summary1Member"
      id="ixv-50546">An investment in the fund is not a bank account or a bank deposit.  It is not 
insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_RiskLoseMoneyMember_S000000113Summary1Member"
      id="ixv-50547"> 
 You could lose money by investing in the fund.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_RiskMoneyMarketFundMayNotPreserveDollarMember_S000000113Summary1Member"
      id="ixv-50548">Although the fund seeks to preserve the value of your 
investment at $1.00 per share, it cannot guarantee it will do so.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_RiskMoneyMarketFundPriceFluctuatesMember_S000000113Summary1Member"
      id="ixv-50549">The fund's yield will fluctuate as 
the short-term securities in its portfolio mature or are sold and the proceeds are reinvested in securities 
with different interest rates.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_Interestraterisk2_S000000113Summary1Member"
      id="ixv-1149">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; text-align:left; color:#000000; text-indent:-8.65pt; font-weight:normal; margin-left:8.65pt; font-style:normal;"&gt;&lt;span style="font-size:10.0pt; font-family:Symbol; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;&#xb7;&lt;/span&gt;&lt;span style="word-spacing:5.325pt;"&gt;&#160;&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:italic; color:#000000; font-weight:normal; text-decoration:none;"&gt;Interest 
rate risk:&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;  This risk refers to the decline in the prices of fixed-income 
securities that may accompany a rise in the overall level of interest rates.  A sharp and unexpected 
rise in interest rates could impair the fund's ability to maintain a stable net &lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;asset 
value.  A wide variety of market factors can cause interest rates to rise, including central bank monetary 
policy, rising inflation and changes in general economic conditions.  It is difficult to predict the 
pace at which central banks or monetary authorities may increase (or decrease) interest rates or the 
timing, frequency, or magnitude of such changes.  Changing interest rates may have unpredictable effects 
on markets&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;, may result in heightened market volatility and may detract 
from fund performance.  For floating and variable rate obligations, there may be a lag between an actual 
change in the underlying interest rate benchmark and the reset time for an interest payment of such an 
obligation, which could harm or benefit the fund, depending on the interest rate environment or other 
circumstances.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_Liquidityrisk2_S000000113Summary1Member"
      id="ixv-1157">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; text-align:left; color:#000000; text-indent:-8.65pt; font-weight:normal; margin-left:8.65pt; font-style:normal;"&gt;&lt;span style="font-size:10.0pt; font-family:Symbol; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;&#xb7;&lt;/span&gt;&lt;span style="word-spacing:5.325pt;"&gt;&#160;&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:italic; color:#000000; font-weight:normal; text-decoration:none;"&gt;Liquidity risk:&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;  &lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;When 
there is little or no active trading market for specific types of securities, it can become more difficult 
to sell the securities in a timely manner at or near their perceived value.  In such a market, the value 
of such securities may fall dramatically, potentially impairing the fund's ability to maintain a stable 
net asset value.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_USTreasurysecuritiesrisk2_S000000113Summary1Member"
      id="ixv-1164">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; text-align:left; color:#000000; text-indent:-8.65pt; font-weight:normal; margin-left:8.65pt; font-style:normal;"&gt;&lt;span style="font-size:10.0pt; font-family:Symbol; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;&#xb7;&lt;/span&gt;&lt;span style="word-spacing:5.325pt;"&gt;&#160;&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:italic; color:#000000; font-weight:normal; text-decoration:none;"&gt;U.S. Treasury securities risk:&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt; 
 A security backed by the U.S. Treasury or the full faith and credit of the United States is guaranteed 
only as to the timely payment of interest and principal when held to maturity, but the market prices 
for such securities are not guaranteed and will fluctuate.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_Marketrisk2_S000000113Summary1Member"
      id="ixv-1170">&lt;p style="margin-top:revert; margin-bottom:revert;font-size:10.0pt; font-family:Serif; text-align:left; color:#000000; text-indent:-8.65pt; font-weight:normal; margin-left:8.65pt; font-style:normal;"&gt;&lt;span style="font-size:10.0pt; font-family:Symbol; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;&#xb7;&lt;/span&gt;&lt;span style="word-spacing:5.325pt;"&gt;&#160;&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:italic; color:#000000; font-weight:normal; text-decoration:none;"&gt;Market 
risk:&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;  The value of the securities in which the fund invests may be affected by political, 
regulatory, economic and social developments.&#160; In addition, turbulence in financial markets and reduced 
liquidity in fixed-income markets may negatively affect many issuers, which could adversely affect the 
fund.  Global economies and financial markets are becoming increasingly interconnected, and conditions 
and events in one country, region or financial market may adversely impact issuers in a different country, 
region or financial market.  These risks may be magnified if certain events or developments adversely 
interrupt the global supply chain; in these and other circumstances, such risks might affect companies 
world-wide.  Local, regional or global events such as war, acts of terrorism, natural disasters, the 
spread of infectious illness or other public health issues, recessions, elevated levels of government 
debt, changes in trade regulation or economic sanctions, internal unrest and discord, or other events 
could have a significant impact on the fund and its investments.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary1Member"
      id="ixv-50550">Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary1Member"
      id="ixv-1179">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;The following bar chart and table provide some indication of the risks of investing 
in the fund.  The bar chart shows changes in the performance of the fund's Administrative shares from 
year to year.  The table shows the average annual total returns of the fund's Administrative shares over 
time.  The fund's past performance is not necessarily an indication of how the fund will perform in the 
future.  More recent performance information may be available at www.dreyfus.com.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary1Member"
      id="ixv-50551">The following bar chart and table provide some indication of the risks of investing 
in the fund.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary1Member"
      id="ixv-50552">The fund's past performance is not necessarily an indication of how the fund will perform in the 
future.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary1Member"
      id="ixv-50553">www.dreyfus.com</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:BarChartHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary1Member"
      id="ixv-50554">Year-by-Year 
Total Returns&#x2005;as of 12/31 each year (%)</oef:BarChartHeading>
    <oef:BarChartClosingTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary1Member"
      id="ixv-1202">&lt;p style="font-size:10.0pt; font-family:Serif; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:italic; font-weight:normal; text-decoration:none;"&gt;During the periods shown in the chart:&lt;/span&gt;&lt;br/&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; font-weight:bold; text-decoration:none;"&gt;Best&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; font-weight:bold; text-decoration:none;"&gt; Quarter&lt;/span&gt;&lt;br/&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; font-weight:normal; text-decoration:none;"&gt;2023, 
Q4: 1.31&lt;/span&gt;&lt;br/&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; font-weight:bold; text-decoration:none;"&gt;Worst Quarter&lt;/span&gt;&lt;br/&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; font-weight:normal; text-decoration:none;"&gt;2022, Q1: 0.00&lt;/span&gt;&lt;/p&gt; &lt;p style="margin-top:revert; margin-bottom:revert;font-size:9.0pt; font-family:Serif; text-align:left; color:#000000; text-indent:-4.3pt; font-weight:normal; margin-left:8.6pt; text-decoration:none; font-style:italic;"&gt;The year-to-date total return of the fund's 
Administrative shares as of March 31, 2026 was 0.85%.&lt;/p&gt;</oef:BarChartClosingTextBlock>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20260131_20260131_C000000257Member_S000000113Member_S000000113Summary1Member"
      id="ixv-50555">Best Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20260131_20260131_C000000257Member_S000000113Member_S000000113Summary1Member"
      id="ixv-50556">2023-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20260131_20260131_C000000257Member_S000000113Member_S000000113Summary1Member"
      decimals="INF"
      id="ixv-50557"
      unitRef="pure">0.0131</oef:BarChartHighestQuarterlyReturn>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20260131_20260131_C000000257Member_S000000113Member_S000000113Summary1Member"
      id="ixv-50558">Worst Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20260131_20260131_C000000257Member_S000000113Member_S000000113Summary1Member"
      id="ixv-50559">2022-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20260131_20260131_C000000257Member_S000000113Member_S000000113Summary1Member"
      decimals="INF"
      id="ixv-50560"
      unitRef="pure">0.0000</oef:BarChartLowestQuarterlyReturn>
    <oef:YearToDateReturnLabel
      contextRef="Context_20260131_20260131_C000000257Member_S000000113Member_S000000113Summary1Member"
      id="ixv-50561">The year-to-date total return of the fund's 
Administrative shares as of</oef:YearToDateReturnLabel>
    <oef:BarChartYearToDateReturnDate
      contextRef="Context_20260131_20260131_C000000257Member_S000000113Member_S000000113Summary1Member"
      id="ixv-50562">2026-03-31</oef:BarChartYearToDateReturnDate>
    <oef:BarChartYearToDateReturn
      contextRef="Context_20260131_20260131_C000000257Member_S000000113Member_S000000113Summary1Member"
      decimals="INF"
      id="ixv-50563"
      unitRef="pure">0.0085</oef:BarChartYearToDateReturn>
    <oef:AverageAnnualReturnCaption
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary1Member"
      id="ixv-50564">Average 
Annual Total Returns as of 12/31/25</oef:AverageAnnualReturnCaption>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000000257Member_S000000113Member_S000000113Summary1Member"
      decimals="INF"
      id="ixv-50565"
      unitRef="pure">0.0404</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000000257Member_S000000113Member_S000000113Summary1Member"
      decimals="INF"
      id="ixv-50566"
      unitRef="pure">0.0303</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000000257Member_S000000113Member_S000000113Summary1Member"
      decimals="INF"
      id="ixv-50567"
      unitRef="pure">0.0196</oef:AvgAnnlRtrPct>
    <oef:PerformanceTableClosingTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary1Member"
      id="ixv-50568">For the current yield for Administrative shares, call toll-free 1-800-373-9387 (inside 
the U.S. only).  Individuals or entities for whom institutions may purchase or redeem shares should call 
the institution directly.</oef:PerformanceTableClosingTextBlock>
    <oef:MoneyMarketSevenDayYieldPhone
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary1Member"
      id="ixv-50569">1-800-373-9387</oef:MoneyMarketSevenDayYieldPhone>
    <dei:TradingSymbol
      contextRef="Context_20260131_20260131_C000000255Member_S000000113Member_S000000113Summary2Member"
      id="ixv-50570">DIRXX</dei:TradingSymbol>
    <oef:RiskReturnHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary2Member"
      id="ixv-50571">Fund 
Summary</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary2Member"
      id="ixv-50572">Investment 
Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary2Member"
      id="ixv-50573">The fund seeks as high a level of current income 
as is consistent with the preservation of capital and the maintenance of liquidity.</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary2Member"
      id="ixv-50574">Fees 
and Expenses</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary2Member"
      id="ixv-3454">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; text-align:left; color:#000000; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
that you may pay if you buy, hold and sell shares of the fund.  &lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and examples below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:OperatingExpensesCaption
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary2Member"
      id="ixv-50575">Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20260131_20260131_C000000255Member_S000000113Member_S000000113Summary2Member"
      decimals="INF"
      id="ixv-50576"
      unitRef="pure">0.0020</oef:ManagementFeesOverAssets>
    <oef:Component2OtherExpensesOverAssets
      contextRef="Context_20260131_20260131_C000000255Member_S000000113Member_S000000113Summary2Member"
      decimals="INF"
      id="_101_"
      unitRef="pure">0.0000</oef:Component2OtherExpensesOverAssets>
    <oef:Component3OtherExpensesOverAssets
      contextRef="Context_20260131_20260131_C000000255Member_S000000113Member_S000000113Summary2Member"
      decimals="INF"
      id="ixv-50578"
      unitRef="pure">0.0001</oef:Component3OtherExpensesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20260131_20260131_C000000255Member_S000000113Member_S000000113Summary2Member"
      decimals="INF"
      id="ixv-50579"
      unitRef="pure">0.0001</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20260131_20260131_C000000255Member_S000000113Member_S000000113Summary2Member"
      decimals="INF"
      id="ixv-50580"
      unitRef="pure">0.0021</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20260131_20260131_C000000255Member_S000000113Member_S000000113Summary2Member"
      decimals="INF"
      id="_105_"
      unitRef="pure">-0.0003</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20260131_20260131_C000000255Member_S000000113Member_S000000113Summary2Member"
      decimals="INF"
      id="ixv-50582"
      unitRef="pure">0.0018</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary2Member"
      id="ixv-50583">Example</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary2Member"
      id="ixv-3536">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;The 
Example is intended to help you compare the cost of investing in the fund with the cost of investing 
in other mutual funds.  The Example assumes that you invest $10,000 in the fund for the time periods 
indicated and then hold or redeem all of your shares at the end of those periods.  The Example also assumes 
that your investment has a 5% return each year and that the fund's operating expenses remain the same. 
 The one-year example and the first year of the three-, five- and ten-years examples are based on net 
operating expenses, which reflect the contractual undertaking by BNY Mellon Investment Adviser, Inc. 
 Although your actual costs may be higher or lower, based on these assumptions your costs would be:&lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20260131_20260131_C000000255Member_S000000113Member_S000000113Summary2Member"
      decimals="INF"
      id="ixv-50584"
      unitRef="usd">18</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20260131_20260131_C000000255Member_S000000113Member_S000000113Summary2Member"
      decimals="INF"
      id="ixv-50585"
      unitRef="usd">65</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20260131_20260131_C000000255Member_S000000113Member_S000000113Summary2Member"
      decimals="INF"
      id="ixv-50586"
      unitRef="usd">115</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20260131_20260131_C000000255Member_S000000113Member_S000000113Summary2Member"
      decimals="INF"
      id="ixv-50587"
      unitRef="usd">265</oef:ExpenseExampleYear10>
    <oef:StrategyHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary2Member"
      id="ixv-50588">Principal Investment Strategy</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary2Member"
      id="ixv-3569">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;The 
fund pursues its investment objective by investing only in U.S. Treasury securities, including those 
with floating or variable rates of interest, and cash.  The fund is a money market fund subject to the 
maturity, quality, liquidity and diversification requirements of Rule 2a-7 under the Investment Company 
Act of 1940, as amended, and seeks to maintain a stable share price of $1.00.  &lt;/p&gt;&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;The 
fund is a "government money market fund," as that term is defined in Rule 2a-7, and as such is required 
to invest at least 99.5% of its total assets in securities issued or guaranteed as to principal and interest 
by the U.S. government or its agencies or instrumentalities, repurchase agreements collateralized solely 
by cash and/or government securities, and cash.  The fund typically invests exclusively in U.S. Treasury 
securities.  &lt;/p&gt;&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;By investing exclusively in U.S. Treasury securities, income paid by the fund 
generally will be exempt from state and local taxes.  Because rules regarding the state and local taxation 
of dividend income can differ from state to state, investors are urged to consult their tax advisers 
about the taxation of the fund's dividend income in their state and locality.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_PrincipalRisks2_S000000113Summary2Member"
      id="ixv-3577">&lt;div style="border-bottom:0.25pt; border-bottom-style:solid; border-bottom-color:#000000; margin-bottom:12pt; padding:0pt 0pt 1pt 0pt;"&gt;&lt;div style="font-size:12.0pt; font-family:Arial; text-align:left; color:#000000; font-weight:bold;"&gt;&lt;span style="font-size:12.0pt; font-family:Arial; font-style:normal; color:#000000; font-weight:bold; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/div&gt;&lt;/div&gt;&lt;p style="margin-top:revert; margin-bottom:revert;font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;An investment in the fund is not a bank account 
or a bank deposit.  It is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) 
or any other government agency.  You could lose money by investing in the fund.  Although the fund seeks 
to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so.  The 
fund's yield will fluctuate as the short-term securities in its portfolio mature or are sold and the 
proceeds are reinvested in securities with different interest rates.  BNY Mellon Investment Adviser, 
Inc. and its affiliates are not required to reimburse the fund for losses, and you should not expect 
that BNY Mellon Investment Adviser, Inc. or its affiliates will provide financial support to the fund 
at any time, including during periods of market stress.  The fund is subject to the following principal 
risks:&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_RiskNotInsuredMember_S000000113Summary2Member"
      id="ixv-50589">An investment in the fund is not a bank account 
or a bank deposit.  It is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) 
or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_RiskLoseMoneyMember_S000000113Summary2Member"
      id="ixv-50590">  You could lose money by investing in the fund.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_RiskMoneyMarketFundMayNotPreserveDollarMember_S000000113Summary2Member"
      id="ixv-50591">Although the fund seeks 
to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_RiskMoneyMarketFundPriceFluctuatesMember_S000000113Summary2Member"
      id="ixv-50592">The 
fund's yield will fluctuate as the short-term securities in its portfolio mature or are sold and the 
proceeds are reinvested in securities with different interest rates.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_Interestraterisk2_S000000113Summary2Member"
      id="ixv-3582">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; text-align:left; color:#000000; text-indent:-8.65pt; font-weight:normal; margin-left:8.65pt; font-style:normal;"&gt;&lt;span style="font-size:10.0pt; font-family:Symbol; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;&#xb7;&lt;/span&gt;&lt;span style="word-spacing:5.325pt;"&gt;&#160;&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:italic; color:#000000; font-weight:normal; text-decoration:none;"&gt;Interest 
rate risk:&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;  This risk refers to the decline in the prices of fixed-income 
securities that may accompany a rise in the overall level of interest rates.  A sharp and unexpected 
rise in interest rates could impair the fund's ability to maintain a stable net &lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;asset 
value.  A wide variety of market factors can cause interest rates to rise, including central bank monetary 
policy, rising inflation and changes in general economic conditions.  It is difficult to predict the 
pace at which central banks or monetary authorities may increase (or decrease) interest rates or the 
timing, frequency, or magnitude of such changes.  Changing interest rates may have unpredictable effects 
on markets&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;, may result in heightened market volatility and may detract 
from fund performance.  For floating and variable rate obligations, there may be a lag between an actual 
change in the underlying interest rate benchmark and the reset time for an interest payment of such an 
obligation, which could harm or benefit the fund, depending on the interest rate environment or other 
circumstances.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_Liquidityrisk2_S000000113Summary2Member"
      id="ixv-3590">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; text-align:left; color:#000000; text-indent:-8.65pt; font-weight:normal; margin-left:8.65pt; font-style:normal;"&gt;&lt;span style="font-size:10.0pt; font-family:Symbol; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;&#xb7;&lt;/span&gt;&lt;span style="word-spacing:5.325pt;"&gt;&#160;&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:italic; color:#000000; font-weight:normal; text-decoration:none;"&gt;Liquidity risk:&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;  &lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;When 
there is little or no active trading market for specific types of securities, it can become more difficult 
to sell the securities in a timely manner at or near their perceived value.  In such a market, the value 
of such securities may fall dramatically, potentially impairing the fund's ability to maintain a stable 
net asset value.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_USTreasurysecuritiesrisk2_S000000113Summary2Member"
      id="ixv-3597">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; text-align:left; color:#000000; text-indent:-8.65pt; font-weight:normal; margin-left:8.65pt; font-style:normal;"&gt;&lt;span style="font-size:10.0pt; font-family:Symbol; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;&#xb7;&lt;/span&gt;&lt;span style="word-spacing:5.325pt;"&gt;&#160;&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:italic; color:#000000; font-weight:normal; text-decoration:none;"&gt;U.S. Treasury securities risk:&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt; 
 A security backed by the U.S. Treasury or the full faith and credit of the United States is guaranteed 
only as to the timely payment of interest and principal when held to maturity, but the market prices 
for such securities are not guaranteed and will fluctuate.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_Marketrisk2_S000000113Summary2Member"
      id="ixv-3603">&lt;p style="margin-top:revert; margin-bottom:revert;font-size:10.0pt; font-family:Serif; text-align:left; color:#000000; text-indent:-8.65pt; font-weight:normal; margin-left:8.65pt; font-style:normal;"&gt;&lt;span style="font-size:10.0pt; font-family:Symbol; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;&#xb7;&lt;/span&gt;&lt;span style="word-spacing:5.325pt;"&gt;&#160;&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:italic; color:#000000; font-weight:normal; text-decoration:none;"&gt;Market 
risk:&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;  The value of the securities in which the fund invests may be affected by political, 
regulatory, economic and social developments.&#160; In addition, turbulence in financial markets and reduced 
liquidity in fixed-income markets may negatively affect many issuers, which could adversely affect the 
fund.  Global economies and financial markets are becoming increasingly interconnected, and conditions 
and events in one country, region or financial market may adversely impact issuers in a different country, 
region or financial market.  These risks may be magnified if certain events or developments adversely 
interrupt the global supply chain; in these and other circumstances, such risks might affect companies 
world-wide.  Local, regional or global events such as war, acts of terrorism, natural disasters, the 
spread of infectious illness or other public health issues, recessions, elevated levels of government 
debt, changes in trade regulation or economic sanctions, internal unrest and discord, or other events 
could have a significant impact on the fund and its investments.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary2Member"
      id="ixv-50593">Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary2Member"
      id="ixv-3612">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;The following bar chart and table provide some indication of the risks of investing 
in the fund.  The bar chart shows changes in the performance of the fund's Institutional shares from 
year to year.  The table shows the average annual total returns of the fund's Institutional shares over 
time.  The fund's past performance is not necessarily an indication of how the fund will perform in the 
future.  More recent performance information may be available at www.dreyfus.com.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary2Member"
      id="ixv-50594">The following bar chart and table provide some indication of the risks of investing 
in the fund.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary2Member"
      id="ixv-50595">The fund's past performance is not necessarily an indication of how the fund will perform in the 
future.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary2Member"
      id="ixv-50596">www.dreyfus.com</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:BarChartHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary2Member"
      id="ixv-50597">Year-by-Year Total Returns&#x2005;as of 12/31 each year 
(%)</oef:BarChartHeading>
    <oef:BarChartClosingTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary2Member"
      id="ixv-3632">&lt;p style="font-size:10.0pt; font-family:Serif; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:italic; font-weight:normal; text-decoration:none;"&gt;During the periods shown in the chart:&lt;/span&gt;&lt;br/&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; font-weight:bold; text-decoration:none;"&gt;Best&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; font-weight:bold; text-decoration:none;"&gt; Quarter&lt;/span&gt;&lt;br/&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; font-weight:normal; text-decoration:none;"&gt;2023, 
Q4: 1.33&lt;/span&gt;&lt;br/&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; font-weight:bold; text-decoration:none;"&gt;Worst Quarter&lt;/span&gt;&lt;br/&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; font-weight:normal; text-decoration:none;"&gt;2021, Q4: 0.00&lt;/span&gt;&lt;/p&gt; &lt;p style="margin-top:revert; margin-bottom:revert;font-size:9.0pt; font-family:Serif; text-align:left; color:#000000; text-indent:-4.3pt; font-weight:normal; margin-left:8.6pt; text-decoration:none; font-style:italic;"&gt;The year-to-date total 
return of the fund's Institutional shares as of March 31, 2026 was 0.88%.&lt;/p&gt;</oef:BarChartClosingTextBlock>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20260131_20260131_C000000255Member_S000000113Member_S000000113Summary2Member"
      id="ixv-50598">Best Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20260131_20260131_C000000255Member_S000000113Member_S000000113Summary2Member"
      id="ixv-50599">2023-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20260131_20260131_C000000255Member_S000000113Member_S000000113Summary2Member"
      decimals="INF"
      id="ixv-50600"
      unitRef="pure">0.0133</oef:BarChartHighestQuarterlyReturn>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20260131_20260131_C000000255Member_S000000113Member_S000000113Summary2Member"
      id="ixv-50601">Worst Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20260131_20260131_C000000255Member_S000000113Member_S000000113Summary2Member"
      id="ixv-50602">2021-12-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20260131_20260131_C000000255Member_S000000113Member_S000000113Summary2Member"
      decimals="INF"
      id="ixv-50603"
      unitRef="pure">0.0000</oef:BarChartLowestQuarterlyReturn>
    <oef:YearToDateReturnLabel
      contextRef="Context_20260131_20260131_C000000255Member_S000000113Member_S000000113Summary2Member"
      id="ixv-50604">The year-to-date total 
return of the fund's Institutional shares as of</oef:YearToDateReturnLabel>
    <oef:BarChartYearToDateReturnDate
      contextRef="Context_20260131_20260131_C000000255Member_S000000113Member_S000000113Summary2Member"
      id="ixv-50605">2026-03-31</oef:BarChartYearToDateReturnDate>
    <oef:BarChartYearToDateReturn
      contextRef="Context_20260131_20260131_C000000255Member_S000000113Member_S000000113Summary2Member"
      decimals="INF"
      id="ixv-50606"
      unitRef="pure">0.0088</oef:BarChartYearToDateReturn>
    <oef:AverageAnnualReturnCaption
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary2Member"
      id="ixv-50607">Average 
Annual Total Returns as of 12/31/25</oef:AverageAnnualReturnCaption>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000000255Member_S000000113Member_S000000113Summary2Member"
      decimals="INF"
      id="ixv-50608"
      unitRef="pure">0.0414</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000000255Member_S000000113Member_S000000113Summary2Member"
      decimals="INF"
      id="ixv-50609"
      unitRef="pure">0.0311</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000000255Member_S000000113Member_S000000113Summary2Member"
      decimals="INF"
      id="ixv-50610"
      unitRef="pure">0.0205</oef:AvgAnnlRtrPct>
    <oef:PerformanceTableClosingTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary2Member"
      id="ixv-3680">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:9.0pt; font-family:Serif; text-align:left; color:#000000; font-weight:normal; margin-left:4.3pt; text-decoration:none; font-style:italic;"&gt;For the current yield for Institutional shares, call toll-free 1-800-373-9387 (inside 
the U.S. only).  Individuals or entities for whom institutions may purchase or redeem shares should call 
the institution directly.&lt;/p&gt;</oef:PerformanceTableClosingTextBlock>
    <oef:MoneyMarketSevenDayYieldPhone
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary2Member"
      id="ixv-50611">1-800-373-9387</oef:MoneyMarketSevenDayYieldPhone>
    <dei:TradingSymbol
      contextRef="Context_20260131_20260131_C000000256Member_S000000113Member_S000000113Summary3Member"
      id="ixv-50612">DVRXX</dei:TradingSymbol>
    <oef:RiskReturnHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary3Member"
      id="ixv-50613">Fund 
Summary</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary3Member"
      id="ixv-50614">Investment 
Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary3Member"
      id="ixv-50615">The fund seeks as high a level of current income 
as is consistent with the preservation of capital and the maintenance of liquidity.</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary3Member"
      id="ixv-50616">Fees 
and Expenses</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary3Member"
      id="ixv-5877">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; text-align:left; color:#000000; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
that you may pay if you buy, hold and sell shares of the fund.  &lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and examples below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:OperatingExpensesCaption
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary3Member"
      id="ixv-50617">Annual Fund Operating Expenses (expenses 
that you pay each year as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20260131_20260131_C000000256Member_S000000113Member_S000000113Summary3Member"
      decimals="INF"
      id="ixv-50618"
      unitRef="pure">0.0020</oef:ManagementFeesOverAssets>
    <oef:Component2OtherExpensesOverAssets
      contextRef="Context_20260131_20260131_C000000256Member_S000000113Member_S000000113Summary3Member"
      decimals="INF"
      id="ixv-50619"
      unitRef="pure">0.0025</oef:Component2OtherExpensesOverAssets>
    <oef:Component3OtherExpensesOverAssets
      contextRef="Context_20260131_20260131_C000000256Member_S000000113Member_S000000113Summary3Member"
      decimals="INF"
      id="_182_"
      unitRef="pure">0.0000</oef:Component3OtherExpensesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20260131_20260131_C000000256Member_S000000113Member_S000000113Summary3Member"
      decimals="INF"
      id="ixv-50621"
      unitRef="pure">0.0025</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20260131_20260131_C000000256Member_S000000113Member_S000000113Summary3Member"
      decimals="INF"
      id="ixv-50622"
      unitRef="pure">0.0045</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20260131_20260131_C000000256Member_S000000113Member_S000000113Summary3Member"
      decimals="INF"
      id="_185_"
      unitRef="pure">-0.0003</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20260131_20260131_C000000256Member_S000000113Member_S000000113Summary3Member"
      decimals="INF"
      id="ixv-50624"
      unitRef="pure">0.0042</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary3Member"
      id="ixv-50625">Example</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary3Member"
      id="ixv-5962">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;The Example is intended to help you compare the cost of investing in the fund 
with the cost of investing in other mutual funds.  The Example assumes that you invest $10,000 in the 
fund for the time periods indicated and then hold or redeem all of your shares at the end of those periods. 
 The Example also assumes that your investment has a 5% return each year and that the fund's operating 
expenses remain the same.  The one-year example and the first year of the three-, five- and ten-years 
examples are based on net operating expenses, which reflect the contractual undertaking by BNY Mellon 
Investment Adviser, Inc.  Although your actual costs may be higher or lower, based on these assumptions 
your costs would be:&lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20260131_20260131_C000000256Member_S000000113Member_S000000113Summary3Member"
      decimals="INF"
      id="ixv-50626"
      unitRef="usd">43</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20260131_20260131_C000000256Member_S000000113Member_S000000113Summary3Member"
      decimals="INF"
      id="ixv-50627"
      unitRef="usd">141</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20260131_20260131_C000000256Member_S000000113Member_S000000113Summary3Member"
      decimals="INF"
      id="ixv-50628"
      unitRef="usd">249</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20260131_20260131_C000000256Member_S000000113Member_S000000113Summary3Member"
      decimals="INF"
      id="ixv-50629"
      unitRef="usd">564</oef:ExpenseExampleYear10>
    <oef:StrategyHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary3Member"
      id="ixv-50630">Principal 
Investment Strategy</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary3Member"
      id="ixv-5995">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;The fund pursues its investment 
objective by investing only in U.S. Treasury securities, including those with floating or variable rates 
of interest, and cash.  The fund is a money market fund subject to the maturity, quality, liquidity and 
diversification requirements of Rule 2a-7 under the Investment Company Act of 1940, as amended, and seeks 
to maintain a stable share price of $1.00.  &lt;/p&gt;&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;The fund is a "government 
money market fund," as that term is defined in Rule 2a-7, and as such is required to invest at least 
99.5% of its total assets in securities issued or guaranteed as to principal and interest by the U.S. 
government or its agencies or instrumentalities, repurchase agreements collateralized solely by cash 
and/or government securities, and cash.  The fund typically invests exclusively in U.S. Treasury securities. 
 &lt;/p&gt;&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;By investing exclusively in U.S. Treasury securities, income paid by the fund 
generally will be exempt from state and local taxes.  Because rules regarding the state and local taxation 
of dividend income can differ from state to state, investors are urged to consult their tax advisers 
about the taxation of the fund's dividend income in their state and locality.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_PrincipalRisks2_S000000113Summary3Member"
      id="ixv-6003">&lt;div style="border-bottom:0.25pt; border-bottom-style:solid; border-bottom-color:#000000; margin-bottom:12pt; padding:0pt 0pt 1pt 0pt;"&gt;&lt;div style="font-size:12.0pt; font-family:Arial; text-align:left; color:#000000; font-weight:bold;"&gt;&lt;span style="font-size:12.0pt; font-family:Arial; font-style:normal; color:#000000; font-weight:bold; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/div&gt;&lt;/div&gt;&lt;p style="margin-top:revert; margin-bottom:revert;font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;An investment in the fund is not a bank account 
or a bank deposit.  It is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) 
or any other government agency.  You could lose money by investing in the fund.  Although the fund seeks 
to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so.  The 
fund's yield will fluctuate as the short-term securities in its portfolio mature or are sold and the 
proceeds are reinvested in securities with different interest rates.  BNY Mellon Investment Adviser, 
Inc. and its affiliates are not required to reimburse the fund for losses, and you should not expect 
that BNY Mellon Investment Adviser, Inc. or its affiliates will provide financial support to the fund 
at any time, including during periods of market stress.  The fund is subject to the following principal 
risks:&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_RiskNotInsuredMember_S000000113Summary3Member"
      id="ixv-50631">An investment in the fund is not a bank account 
or a bank deposit.  It is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) 
or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_RiskLoseMoneyMember_S000000113Summary3Member"
      id="ixv-50632">  You could lose money by investing in the fund.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_RiskMoneyMarketFundMayNotPreserveDollarMember_S000000113Summary3Member"
      id="ixv-50633">Although the fund seeks 
to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_RiskMoneyMarketFundPriceFluctuatesMember_S000000113Summary3Member"
      id="ixv-50634">The 
fund's yield will fluctuate as the short-term securities in its portfolio mature or are sold and the 
proceeds are reinvested in securities with different interest rates.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_Interestraterisk2_S000000113Summary3Member"
      id="ixv-6008">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; text-align:left; color:#000000; text-indent:-8.65pt; font-weight:normal; margin-left:8.65pt; font-style:normal;"&gt;&lt;span style="font-size:10.0pt; font-family:Symbol; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;&#xb7;&lt;/span&gt;&lt;span style="word-spacing:5.325pt;"&gt;&#160;&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:italic; color:#000000; font-weight:normal; text-decoration:none;"&gt;Interest 
rate risk:&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;  This risk refers to the decline in the prices of fixed-income 
securities that may accompany a rise in the overall level of interest rates.  A sharp and unexpected 
rise in interest rates could impair the fund's ability to maintain a stable net &lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;asset 
value.  A wide variety of market factors can cause interest rates to rise, including central bank monetary 
policy, rising inflation and changes in general economic conditions.  It is difficult to predict the 
pace at which central banks or monetary authorities may increase (or decrease) interest rates or the 
timing, frequency, or magnitude of such changes.  Changing interest rates may have unpredictable effects 
on markets&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;, may result in heightened market volatility and may detract 
from fund performance.  For floating and variable rate obligations, there may be a lag between an actual 
change in the underlying interest rate benchmark and the reset time for an interest payment of such an 
obligation, which could harm or benefit the fund, depending on the interest rate environment or other 
circumstances.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_Liquidityrisk2_S000000113Summary3Member"
      id="ixv-6016">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; text-align:left; color:#000000; text-indent:-8.65pt; font-weight:normal; margin-left:8.65pt; font-style:normal;"&gt;&lt;span style="font-size:10.0pt; font-family:Symbol; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;&#xb7;&lt;/span&gt;&lt;span style="word-spacing:5.325pt;"&gt;&#160;&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:italic; color:#000000; font-weight:normal; text-decoration:none;"&gt;Liquidity risk:&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;  &lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;When 
there is little or no active trading market for specific types of securities, it can become more difficult 
to sell the securities in a timely manner at or near their perceived value.  In such a market, the value 
of such securities may fall dramatically, potentially impairing the fund's ability to maintain a stable 
net asset value.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_USTreasurysecuritiesrisk2_S000000113Summary3Member"
      id="ixv-6023">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; text-align:left; color:#000000; text-indent:-8.65pt; font-weight:normal; margin-left:8.65pt; font-style:normal;"&gt;&lt;span style="font-size:10.0pt; font-family:Symbol; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;&#xb7;&lt;/span&gt;&lt;span style="word-spacing:5.325pt;"&gt;&#160;&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:italic; color:#000000; font-weight:normal; text-decoration:none;"&gt;U.S. Treasury securities risk:&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt; 
 A security backed by the U.S. Treasury or the full faith and credit of the United States is guaranteed 
only as to the timely payment of interest and principal when held to maturity, but the market prices 
for such securities are not guaranteed and will fluctuate.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_Marketrisk2_S000000113Summary3Member"
      id="ixv-6029">&lt;p style="margin-top:revert; margin-bottom:revert;font-size:10.0pt; font-family:Serif; text-align:left; color:#000000; text-indent:-8.65pt; font-weight:normal; margin-left:8.65pt; font-style:normal;"&gt;&lt;span style="font-size:10.0pt; font-family:Symbol; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;&#xb7;&lt;/span&gt;&lt;span style="word-spacing:5.325pt;"&gt;&#160;&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:italic; color:#000000; font-weight:normal; text-decoration:none;"&gt;Market 
risk:&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;  The value of the securities in which the fund invests may be affected by political, 
regulatory, economic and social developments.&#160; In addition, turbulence in financial markets and reduced 
liquidity in fixed-income markets may negatively affect many issuers, which could adversely affect the 
fund.  Global economies and financial markets are becoming increasingly interconnected, and conditions 
and events in one country, region or financial market may adversely impact issuers in a different country, 
region or financial market.  These risks may be magnified if certain events or developments adversely 
interrupt the global supply chain; in these and other circumstances, such risks might affect companies 
world-wide.  Local, regional or global events such as war, acts of terrorism, natural disasters, the 
spread of infectious illness or other public health issues, recessions, elevated levels of government 
debt, changes in trade regulation or economic sanctions, internal unrest and discord, or other events 
could have a significant impact on the fund and its investments.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary3Member"
      id="ixv-50635">Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary3Member"
      id="ixv-6038">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;The following bar chart and table provide some indication of the risks of investing 
in the fund.  The bar chart shows changes in the performance of the fund's Investor shares from year 
to year.  The table shows the average annual total returns of the fund's Investor shares over time.  
The fund's past performance is not necessarily an indication of how the fund will perform in the future. 
 More recent performance information may be available at www.dreyfus.com.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary3Member"
      id="ixv-50636">The following bar chart and table provide some indication of the risks of investing 
in the fund.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary3Member"
      id="ixv-50637">The fund's past performance is not necessarily an indication of how the fund will perform in the future.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary3Member"
      id="ixv-50638">www.dreyfus.com</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:BarChartHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary3Member"
      id="ixv-50639">Year-by-Year Total Returns&#x2005;as of 12/31 each year 
(%)</oef:BarChartHeading>
    <oef:BarChartClosingTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary3Member"
      id="ixv-6058">&lt;p style="font-size:10.0pt; font-family:Serif; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:italic; font-weight:normal; text-decoration:none;"&gt;During the periods shown in the chart:&lt;/span&gt;&lt;br/&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; font-weight:bold; text-decoration:none;"&gt;Best&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; font-weight:bold; text-decoration:none;"&gt; Quarter&lt;/span&gt;&lt;br/&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; font-weight:normal; text-decoration:none;"&gt;2023, 
Q4: 1.27&lt;/span&gt;&lt;br/&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; font-weight:bold; text-decoration:none;"&gt;Worst Quarter&lt;/span&gt;&lt;br/&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; font-weight:normal; text-decoration:none;"&gt;2022, Q1: 0.00&lt;/span&gt;&lt;/p&gt; &lt;p style="margin-top:revert; margin-bottom:revert;font-size:9.0pt; font-family:Serif; text-align:left; color:#000000; text-indent:-4.3pt; font-weight:normal; margin-left:8.6pt; text-decoration:none; font-style:italic;"&gt;The year-to-date total 
return of the fund's Investor shares as of March 31, 2026 was 0.82%.&lt;/p&gt;</oef:BarChartClosingTextBlock>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20260131_20260131_C000000256Member_S000000113Member_S000000113Summary3Member"
      id="ixv-50640">Best Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20260131_20260131_C000000256Member_S000000113Member_S000000113Summary3Member"
      id="ixv-50641">2023-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20260131_20260131_C000000256Member_S000000113Member_S000000113Summary3Member"
      decimals="INF"
      id="ixv-50642"
      unitRef="pure">0.0127</oef:BarChartHighestQuarterlyReturn>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20260131_20260131_C000000256Member_S000000113Member_S000000113Summary3Member"
      id="ixv-50643">Worst Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20260131_20260131_C000000256Member_S000000113Member_S000000113Summary3Member"
      id="ixv-50644">2022-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20260131_20260131_C000000256Member_S000000113Member_S000000113Summary3Member"
      decimals="INF"
      id="ixv-50645"
      unitRef="pure">0.0000</oef:BarChartLowestQuarterlyReturn>
    <oef:YearToDateReturnLabel
      contextRef="Context_20260131_20260131_C000000256Member_S000000113Member_S000000113Summary3Member"
      id="ixv-50646">The year-to-date total 
return of the fund's Investor shares as of</oef:YearToDateReturnLabel>
    <oef:BarChartYearToDateReturnDate
      contextRef="Context_20260131_20260131_C000000256Member_S000000113Member_S000000113Summary3Member"
      id="ixv-50647">2026-03-31</oef:BarChartYearToDateReturnDate>
    <oef:BarChartYearToDateReturn
      contextRef="Context_20260131_20260131_C000000256Member_S000000113Member_S000000113Summary3Member"
      decimals="INF"
      id="ixv-50648"
      unitRef="pure">0.0082</oef:BarChartYearToDateReturn>
    <oef:AverageAnnualReturnCaption
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary3Member"
      id="ixv-50649">Average 
Annual Total Returns&#160;as of 12/31/25</oef:AverageAnnualReturnCaption>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000000256Member_S000000113Member_S000000113Summary3Member"
      decimals="INF"
      id="ixv-50650"
      unitRef="pure">0.0388</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000000256Member_S000000113Member_S000000113Summary3Member"
      decimals="INF"
      id="ixv-50651"
      unitRef="pure">0.0292</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000000256Member_S000000113Member_S000000113Summary3Member"
      decimals="INF"
      id="ixv-50652"
      unitRef="pure">0.0185</oef:AvgAnnlRtrPct>
    <oef:PerformanceTableClosingTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary3Member"
      id="ixv-6108">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:9.0pt; font-family:Serif; text-align:left; color:#000000; font-weight:normal; margin-left:4.3pt; text-decoration:none; font-style:italic;"&gt;For 
the current yield for Investor shares, call toll-free 1-800-373-9387 (inside the U.S. only).  Individuals 
or entities for whom institutions may purchase or redeem shares should call the institution directly.&lt;/p&gt;</oef:PerformanceTableClosingTextBlock>
    <oef:MoneyMarketSevenDayYieldPhone
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary3Member"
      id="ixv-50653">1-800-373-9387</oef:MoneyMarketSevenDayYieldPhone>
    <dei:TradingSymbol
      contextRef="Context_20260131_20260131_C000000258Member_S000000113Member_S000000113Summary4Member"
      id="ixv-50654">DPRXX</dei:TradingSymbol>
    <oef:RiskReturnHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary4Member"
      id="ixv-50655">Fund 
Summary</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary4Member"
      id="ixv-50656">Investment 
Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary4Member"
      id="ixv-50657">The fund seeks as high a level of current income 
as is consistent with the preservation of capital and the maintenance of liquidity.</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary4Member"
      id="ixv-50658">Fees 
and Expenses</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary4Member"
      id="ixv-8315">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; text-align:left; color:#000000; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
that you may pay if you buy, hold and sell shares of the fund.  &lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and examples below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:OperatingExpensesCaption
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary4Member"
      id="ixv-50659">Annual Fund Operating Expenses (expenses 
that you pay each year as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20260131_20260131_C000000258Member_S000000113Member_S000000113Summary4Member"
      decimals="INF"
      id="ixv-50660"
      unitRef="pure">0.0020</oef:ManagementFeesOverAssets>
    <oef:Component1OtherExpensesOverAssets
      contextRef="Context_20260131_20260131_C000000258Member_S000000113Member_S000000113Summary4Member"
      decimals="INF"
      id="ixv-50661"
      unitRef="pure">0.0015</oef:Component1OtherExpensesOverAssets>
    <oef:Component2OtherExpensesOverAssets
      contextRef="Context_20260131_20260131_C000000258Member_S000000113Member_S000000113Summary4Member"
      decimals="INF"
      id="ixv-50662"
      unitRef="pure">0.0025</oef:Component2OtherExpensesOverAssets>
    <oef:Component3OtherExpensesOverAssets
      contextRef="Context_20260131_20260131_C000000258Member_S000000113Member_S000000113Summary4Member"
      decimals="INF"
      id="_263_"
      unitRef="pure">0.0000</oef:Component3OtherExpensesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20260131_20260131_C000000258Member_S000000113Member_S000000113Summary4Member"
      decimals="INF"
      id="ixv-50664"
      unitRef="pure">0.0040</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20260131_20260131_C000000258Member_S000000113Member_S000000113Summary4Member"
      decimals="INF"
      id="ixv-50665"
      unitRef="pure">0.0060</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20260131_20260131_C000000258Member_S000000113Member_S000000113Summary4Member"
      decimals="INF"
      id="_266_"
      unitRef="pure">-0.0003</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20260131_20260131_C000000258Member_S000000113Member_S000000113Summary4Member"
      decimals="INF"
      id="ixv-50667"
      unitRef="pure">0.0057</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary4Member"
      id="ixv-50668">Example</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary4Member"
      id="ixv-8397">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;The 
Example is intended to help you compare the cost of investing in the fund with the cost of investing 
in other mutual funds.  The Example assumes that you invest $10,000 in the fund for the time periods 
indicated and then hold or redeem all of your shares at the end of those periods.  The Example also assumes 
that your investment has a 5% return each year and that the fund's operating expenses remain the same. 
 The one-year example and the first year of the three-, five- and ten-years examples are based on net 
operating expenses, which reflect the contractual undertaking by BNY Mellon Investment Adviser, Inc. 
 Although your actual costs may be higher or lower, based on these assumptions your costs would be:&lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20260131_20260131_C000000258Member_S000000113Member_S000000113Summary4Member"
      decimals="INF"
      id="ixv-50669"
      unitRef="usd">58</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20260131_20260131_C000000258Member_S000000113Member_S000000113Summary4Member"
      decimals="INF"
      id="ixv-50670"
      unitRef="usd">189</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20260131_20260131_C000000258Member_S000000113Member_S000000113Summary4Member"
      decimals="INF"
      id="ixv-50671"
      unitRef="usd">332</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20260131_20260131_C000000258Member_S000000113Member_S000000113Summary4Member"
      decimals="INF"
      id="ixv-50672"
      unitRef="usd">747</oef:ExpenseExampleYear10>
    <oef:StrategyHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary4Member"
      id="ixv-50673">Principal Investment Strategy</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary4Member"
      id="ixv-8430">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;The 
fund pursues its investment objective by investing only in U.S. Treasury securities, including those 
with floating or variable rates of interest, and cash.  The fund is a money market fund subject to the 
maturity, quality, liquidity and diversification requirements of Rule 2a-7 under the Investment Company 
Act of 1940, as amended, and seeks to maintain a stable share price of $1.00.  &lt;/p&gt;&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;The 
fund is a "government money market fund," as that term is defined in Rule 2a-7, and as such is required 
to invest at least 99.5% of its total assets in securities issued or guaranteed as to principal and interest 
by the U.S. government or its agencies or instrumentalities, repurchase agreements collateralized solely 
by cash and/or government securities, and cash.  The fund typically invests exclusively in U.S. Treasury 
securities.  &lt;/p&gt;&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;By investing exclusively in U.S. Treasury securities, income paid by the fund 
generally will be exempt from state and local taxes.  Because rules regarding the state and local taxation 
of dividend income can differ from state to state, investors are urged to consult their tax advisers 
about the taxation of the fund's dividend income in their state and locality.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_PrincipalRisks2_S000000113Summary4Member"
      id="ixv-8438">&lt;div style="border-bottom:0.25pt; border-bottom-style:solid; border-bottom-color:#000000; padding:0pt 0pt 1pt 0pt;"&gt;&lt;div style="font-size:12.0pt; font-family:Arial; text-align:left; color:#000000; font-weight:bold;"&gt;&lt;span style="font-size:12.0pt; font-family:Arial; font-style:normal; color:#000000; font-weight:bold; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/div&gt;&lt;/div&gt;&lt;p style="margin-top:revert; margin-bottom:revert;font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;An investment in the fund is not a bank account 
or a bank deposit.  It is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) 
or any other government agency.  You could lose money by investing in the fund.  Although the fund seeks 
to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so.  The 
fund's yield will fluctuate as the short-term securities in its portfolio mature or are sold and the 
proceeds are reinvested in securities with different interest rates.  BNY Mellon Investment Adviser, 
Inc. and its affiliates are not required to reimburse the fund for losses, and you should not expect 
that BNY Mellon Investment Adviser, Inc. or its affiliates will provide financial support to the fund 
at any time, including during periods of market stress.  The fund is subject to the following principal 
risks:&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_RiskNotInsuredMember_S000000113Summary4Member"
      id="ixv-50674">An investment in the fund is not a bank account 
or a bank deposit.  It is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) 
or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_RiskLoseMoneyMember_S000000113Summary4Member"
      id="ixv-50675">  You could lose money by investing in the fund.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_RiskMoneyMarketFundMayNotPreserveDollarMember_S000000113Summary4Member"
      id="ixv-50676">Although the fund seeks 
to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_RiskMoneyMarketFundPriceFluctuatesMember_S000000113Summary4Member"
      id="ixv-50677">The 
fund's yield will fluctuate as the short-term securities in its portfolio mature or are sold and the 
proceeds are reinvested in securities with different interest rates.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_Interestraterisk2_S000000113Summary4Member"
      id="ixv-8443">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; text-align:left; color:#000000; text-indent:-8.65pt; font-weight:normal; margin-left:8.65pt; font-style:normal;"&gt;&lt;span style="font-size:10.0pt; font-family:Symbol; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;&#xb7;&lt;/span&gt;&lt;span style="word-spacing:5.325pt;"&gt;&#160;&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:italic; color:#000000; font-weight:normal; text-decoration:none;"&gt;Interest 
rate risk:&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;  This risk refers to the decline in the prices of fixed-income 
securities that may accompany a rise in the overall level of interest rates.  A sharp and unexpected 
rise in interest rates could impair the fund's ability to maintain a stable net &lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;asset 
value.  A wide variety of market factors can cause interest rates to rise, including central bank monetary 
policy, rising inflation and changes in general economic conditions.  It is difficult to predict the 
pace at which central banks or monetary authorities may increase (or decrease) interest rates or the 
timing, frequency, or magnitude of such changes.  Changing interest rates may have unpredictable effects 
on markets&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;, may result in heightened market volatility and may detract 
from fund performance.  For floating and variable rate obligations, there may be a lag between an actual 
change in the underlying interest rate benchmark and the reset time for an interest payment of such an 
obligation, which could harm or benefit the fund, depending on the interest rate environment or other 
circumstances.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_Liquidityrisk2_S000000113Summary4Member"
      id="ixv-8451">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; text-align:left; color:#000000; text-indent:-8.65pt; font-weight:normal; margin-left:8.65pt; font-style:normal;"&gt;&lt;span style="font-size:10.0pt; font-family:Symbol; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;&#xb7;&lt;/span&gt;&lt;span style="word-spacing:5.325pt;"&gt;&#160;&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:italic; color:#000000; font-weight:normal; text-decoration:none;"&gt;Liquidity risk:&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;  &lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;When 
there is little or no active trading market for specific types of securities, it can become more difficult 
to sell the securities in a timely manner at or near their perceived value.  In such a market, the value 
of such securities may fall dramatically, potentially impairing the fund's ability to maintain a stable 
net asset value.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_USTreasurysecuritiesrisk2_S000000113Summary4Member"
      id="ixv-8458">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; text-align:left; color:#000000; text-indent:-8.65pt; font-weight:normal; margin-left:8.65pt; font-style:normal;"&gt;&lt;span style="font-size:10.0pt; font-family:Symbol; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;&#xb7;&lt;/span&gt;&lt;span style="word-spacing:5.325pt;"&gt;&#160;&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:italic; color:#000000; font-weight:normal; text-decoration:none;"&gt;U.S. Treasury securities risk:&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt; 
 A security backed by the U.S. Treasury or the full faith and credit of the United States is guaranteed 
only as to the timely payment of interest and principal when held to maturity, but the market prices 
for such securities are not guaranteed and will fluctuate.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_Marketrisk2_S000000113Summary4Member"
      id="ixv-8464">&lt;p style="margin-top:revert; margin-bottom:revert;font-size:10.0pt; font-family:Serif; text-align:left; color:#000000; text-indent:-8.65pt; font-weight:normal; margin-left:8.65pt; font-style:normal;"&gt;&lt;span style="font-size:10.0pt; font-family:Symbol; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;&#xb7;&lt;/span&gt;&lt;span style="word-spacing:5.325pt;"&gt;&#160;&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:italic; color:#000000; font-weight:normal; text-decoration:none;"&gt;Market 
risk:&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;  The value of the securities in which the fund invests may be affected by political, 
regulatory, economic and social developments.&#160; In addition, turbulence in financial markets and reduced 
liquidity in fixed-income markets may negatively affect many issuers, which could adversely affect the 
fund.  Global economies and financial markets are becoming increasingly interconnected, and conditions 
and events in one country, region or financial market may adversely impact issuers in a different country, 
region or financial market.  These risks may be magnified if certain events or developments adversely 
interrupt the global supply chain; in these and other circumstances, such risks might affect companies 
world-wide.  Local, regional or global events such as war, acts of terrorism, natural disasters, the 
spread of infectious illness or other public health issues, recessions, elevated levels of government 
debt, changes in trade regulation or economic sanctions, internal unrest and discord, or other events 
could have a significant impact on the fund and its investments.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary4Member"
      id="ixv-50678">Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary4Member"
      id="ixv-8473">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;The following bar chart and table provide some indication of the risks of investing 
in the fund.  The bar chart shows changes in the performance of the fund's Participant shares from year 
to year.  The table shows the average annual total returns of the fund's Participant shares over time. 
 The fund's past performance is not necessarily an indication of how the fund will perform in the future. 
 More recent performance information may be available at www.dreyfus.com.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary4Member"
      id="ixv-50679">The following bar chart and table provide some indication of the risks of investing 
in the fund.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary4Member"
      id="ixv-50680">The fund's past performance is not necessarily an indication of how the fund will perform in the future.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary4Member"
      id="ixv-50681">www.dreyfus.com</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:BarChartHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary4Member"
      id="ixv-50682">Year-by-Year 
Total Returns&#x2005;as of 12/31 each year (%)</oef:BarChartHeading>
    <oef:BarChartClosingTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary4Member"
      id="ixv-8496">&lt;p style="font-size:10.0pt; font-family:Serif; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:italic; font-weight:normal; text-decoration:none;"&gt;During the periods shown in the chart:&lt;/span&gt;&lt;br/&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; font-weight:bold; text-decoration:none;"&gt;Best&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; font-weight:bold; text-decoration:none;"&gt; Quarter&lt;/span&gt;&lt;br/&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; font-weight:normal; text-decoration:none;"&gt;2023, 
Q4: 1.23&lt;/span&gt;&lt;br/&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; font-weight:bold; text-decoration:none;"&gt;Worst Quarter&lt;/span&gt;&lt;br/&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; font-weight:normal; text-decoration:none;"&gt;2022, Q1: 0.00&lt;/span&gt;&lt;/p&gt; &lt;p style="margin-top:revert; margin-bottom:revert;font-size:9.0pt; font-family:Serif; text-align:left; color:#000000; text-indent:-4.3pt; font-weight:normal; margin-left:8.6pt; text-decoration:none; font-style:italic;"&gt;The year-to-date total return of the fund's 
Participant shares as of March 31, 2026 was 0.78%.&lt;/p&gt;</oef:BarChartClosingTextBlock>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20260131_20260131_C000000258Member_S000000113Member_S000000113Summary4Member"
      id="ixv-50683">Best Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20260131_20260131_C000000258Member_S000000113Member_S000000113Summary4Member"
      id="ixv-50684">2023-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20260131_20260131_C000000258Member_S000000113Member_S000000113Summary4Member"
      decimals="INF"
      id="ixv-50685"
      unitRef="pure">0.0123</oef:BarChartHighestQuarterlyReturn>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20260131_20260131_C000000258Member_S000000113Member_S000000113Summary4Member"
      id="ixv-50686">Worst Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20260131_20260131_C000000258Member_S000000113Member_S000000113Summary4Member"
      id="ixv-50687">2022-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20260131_20260131_C000000258Member_S000000113Member_S000000113Summary4Member"
      decimals="INF"
      id="ixv-50688"
      unitRef="pure">0.0000</oef:BarChartLowestQuarterlyReturn>
    <oef:YearToDateReturnLabel
      contextRef="Context_20260131_20260131_C000000258Member_S000000113Member_S000000113Summary4Member"
      id="ixv-50689">The year-to-date total return of the fund's 
Participant shares as of</oef:YearToDateReturnLabel>
    <oef:BarChartYearToDateReturnDate
      contextRef="Context_20260131_20260131_C000000258Member_S000000113Member_S000000113Summary4Member"
      id="ixv-50690">2026-03-31</oef:BarChartYearToDateReturnDate>
    <oef:BarChartYearToDateReturn
      contextRef="Context_20260131_20260131_C000000258Member_S000000113Member_S000000113Summary4Member"
      decimals="INF"
      id="ixv-50691"
      unitRef="pure">0.0078</oef:BarChartYearToDateReturn>
    <oef:AverageAnnualReturnCaption
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary4Member"
      id="ixv-50692">Average 
Annual Total Returns&#160;as of 12/31/25</oef:AverageAnnualReturnCaption>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000000258Member_S000000113Member_S000000113Summary4Member"
      decimals="INF"
      id="ixv-50693"
      unitRef="pure">0.0373</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000000258Member_S000000113Member_S000000113Summary4Member"
      decimals="INF"
      id="ixv-50694"
      unitRef="pure">0.0281</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000000258Member_S000000113Member_S000000113Summary4Member"
      decimals="INF"
      id="ixv-50695"
      unitRef="pure">0.0174</oef:AvgAnnlRtrPct>
    <oef:PerformanceTableClosingTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary4Member"
      id="ixv-8543">&lt;p style="margin-top:revert; margin-bottom:revert;font-size:9.0pt; font-family:Serif; text-align:left; color:#000000; text-indent:0.4pt; font-weight:normal; margin-left:4.5pt; text-decoration:none; font-style:italic;"&gt;For 
the current yield for Participant shares, call toll-free 1-800-373-9387 (inside the U.S. only).  Individuals 
or entities for whom institutions may purchase or redeem shares should call the institution directly.&lt;/p&gt;</oef:PerformanceTableClosingTextBlock>
    <oef:MoneyMarketSevenDayYieldPhone
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary4Member"
      id="ixv-50696">1-800-373-9387</oef:MoneyMarketSevenDayYieldPhone>
    <dei:TradingSymbol
      contextRef="Context_20260131_20260131_C000223305Member_S000000113Member_S000000113Summary5Member"
      id="ixv-50697">DTHXX</dei:TradingSymbol>
    <oef:RiskReturnHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary5Member"
      id="ixv-50698">Fund 
Summary</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary5Member"
      id="ixv-50699">Investment 
Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary5Member"
      id="ixv-50700">The fund seeks as high a level of current income 
as is consistent with the preservation of capital and the maintenance of liquidity.</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary5Member"
      id="ixv-50701">Fees 
and Expenses</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary5Member"
      id="ixv-10486">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; text-align:left; color:#000000; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
that you may pay if you buy, hold and sell shares of the fund.  &lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and examples below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:OperatingExpensesCaption
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary5Member"
      id="ixv-50702">Annual Fund Operating Expenses (expenses 
that you pay each year as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20260131_20260131_C000223305Member_S000000113Member_S000000113Summary5Member"
      decimals="INF"
      id="ixv-50703"
      unitRef="pure">0.0020</oef:ManagementFeesOverAssets>
    <oef:Component1OtherExpensesOverAssets
      contextRef="Context_20260131_20260131_C000223305Member_S000000113Member_S000000113Summary5Member"
      decimals="INF"
      id="ixv-50704"
      unitRef="pure">0.0055</oef:Component1OtherExpensesOverAssets>
    <oef:Component2OtherExpensesOverAssets
      contextRef="Context_20260131_20260131_C000223305Member_S000000113Member_S000000113Summary5Member"
      decimals="INF"
      id="ixv-50705"
      unitRef="pure">0.0025</oef:Component2OtherExpensesOverAssets>
    <oef:Component3OtherExpensesOverAssets
      contextRef="Context_20260131_20260131_C000223305Member_S000000113Member_S000000113Summary5Member"
      decimals="INF"
      id="ixv-50706"
      unitRef="pure">0.0001</oef:Component3OtherExpensesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20260131_20260131_C000223305Member_S000000113Member_S000000113Summary5Member"
      decimals="INF"
      id="ixv-50707"
      unitRef="pure">0.0081</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20260131_20260131_C000223305Member_S000000113Member_S000000113Summary5Member"
      decimals="INF"
      id="ixv-50708"
      unitRef="pure">0.0101</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20260131_20260131_C000223305Member_S000000113Member_S000000113Summary5Member"
      decimals="INF"
      id="_347_"
      unitRef="pure">-0.0003</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20260131_20260131_C000223305Member_S000000113Member_S000000113Summary5Member"
      decimals="INF"
      id="ixv-50710"
      unitRef="pure">0.0098</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary5Member"
      id="ixv-50711">Example</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary5Member"
      id="ixv-10565">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;The Example 
is intended to help you compare the cost of investing in the fund with the cost of investing in other 
mutual funds.  The Example assumes that you invest $10,000 in the fund for the time periods indicated 
and then hold or redeem all of your shares at the end of those periods.  The Example also assumes that 
your investment has a 5% return each year and that the fund's operating expenses remain the same.  The 
one-year example and the first year of the three-, five- and ten-years examples are based on net operating 
expenses, which reflect the contractual undertaking by BNY Mellon Investment Adviser, Inc.  Although 
your actual costs may be higher or lower, based on these assumptions your costs would be:&lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20260131_20260131_C000223305Member_S000000113Member_S000000113Summary5Member"
      decimals="INF"
      id="ixv-50712"
      unitRef="usd">100</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20260131_20260131_C000223305Member_S000000113Member_S000000113Summary5Member"
      decimals="INF"
      id="ixv-50713"
      unitRef="usd">319</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20260131_20260131_C000223305Member_S000000113Member_S000000113Summary5Member"
      decimals="INF"
      id="ixv-50714"
      unitRef="usd">555</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20260131_20260131_C000223305Member_S000000113Member_S000000113Summary5Member"
      decimals="INF"
      id="ixv-50715"
      unitRef="usd">1234</oef:ExpenseExampleYear10>
    <oef:StrategyHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary5Member"
      id="ixv-50716">Principal Investment Strategy</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary5Member"
      id="ixv-10598">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;The 
fund pursues its investment objective by investing only in U.S. Treasury securities, including those 
with floating or variable rates of interest, and cash.  The fund is a money market fund subject to the 
maturity, quality, liquidity and diversification requirements of Rule 2a-7 under the Investment Company 
Act of 1940, as amended, and seeks to maintain a stable share price of $1.00.   &lt;/p&gt;&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;The 
fund is a "government money market fund," as that term is defined in Rule 2a-7, and as such is required 
to invest at least 99.5% of its total assets in securities issued or guaranteed as to principal and interest 
by the U.S. government or its agencies or instrumentalities, repurchase agreements collateralized solely 
by cash and/or government securities, and cash.  The fund typically invests exclusively in U.S. Treasury 
securities.   &lt;/p&gt;&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;By investing exclusively in U.S. Treasury securities, income paid by the fund 
generally will be exempt from state and local taxes.  Because rules regarding the state and local taxation 
of dividend income can differ from state to state, investors are urged to consult their tax advisers 
about the taxation of the fund's dividend income in their state and locality. &lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_PrincipalRisks2_S000000113Summary5Member"
      id="ixv-10606">&lt;div style="border-bottom:0.25pt; border-bottom-style:solid; border-bottom-color:#000000; margin-bottom:12pt; padding:0pt 0pt 1pt 0pt;"&gt;&lt;div style="font-size:12.0pt; font-family:Arial; text-align:left; color:#000000; font-weight:bold;"&gt;&lt;span style="font-size:12.0pt; font-family:Arial; font-style:normal; color:#000000; font-weight:bold; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/div&gt;&lt;/div&gt;&lt;p style="margin-top:revert; margin-bottom:revert;font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;An investment in the fund is not a bank account 
or a bank deposit.  It is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) 
or any other government agency.  You could lose money by investing in the fund.  Although the fund seeks 
to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so.  The 
fund's yield will fluctuate as the short-term securities in its portfolio mature or are sold and the 
proceeds are reinvested in securities with different interest rates.  BNY Mellon Investment Adviser, 
Inc. and its affiliates are not required to reimburse the fund for losses, and you should not expect 
that BNY Mellon Investment Adviser, Inc. or its affiliates will provide financial support to the fund 
at any time, including during periods of market stress.  The fund is subject to the following principal 
risks:&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_RiskNotInsuredMember_S000000113Summary5Member"
      id="ixv-50717">An investment in the fund is not a bank account 
or a bank deposit.  It is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) 
or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_RiskLoseMoneyMember_S000000113Summary5Member"
      id="ixv-50718">  You could lose money by investing in the fund.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_RiskMoneyMarketFundMayNotPreserveDollarMember_S000000113Summary5Member"
      id="ixv-50719">Although the fund seeks 
to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_RiskMoneyMarketFundPriceFluctuatesMember_S000000113Summary5Member"
      id="ixv-50720">The 
fund's yield will fluctuate as the short-term securities in its portfolio mature or are sold and the 
proceeds are reinvested in securities with different interest rates.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_Interestraterisk2_S000000113Summary5Member"
      id="ixv-10611">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; text-align:left; color:#000000; text-indent:-8.65pt; font-weight:normal; margin-left:8.65pt; font-style:normal;"&gt;&lt;span style="font-size:10.0pt; font-family:Symbol; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;&#xb7;&lt;/span&gt;&lt;span style="word-spacing:5.325pt;"&gt;&#160;&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:italic; color:#000000; font-weight:normal; text-decoration:none;"&gt;Interest 
rate risk:&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;  This risk refers to the decline in the prices of fixed-income 
securities that may accompany a rise in the overall level of interest rates.  A sharp and unexpected 
rise in interest rates could impair the fund's ability to maintain a stable net &lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;asset 
value.  A wide variety of market factors can cause interest rates to rise, including central bank monetary 
policy, rising inflation and changes in general economic conditions.  It is difficult to predict the 
pace at which central banks or monetary authorities may increase (or decrease) interest rates or the 
timing, frequency, or magnitude of such changes.  Changing interest rates may have unpredictable effects 
on markets&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;, may result in heightened market volatility and may detract 
from fund performance.  For floating and variable rate obligations, there may be a lag between an actual 
change in the underlying interest rate benchmark and the reset time for an interest payment of such an 
obligation, which could harm or benefit the fund, depending on the interest rate environment or other 
circumstances.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_Liquidityrisk2_S000000113Summary5Member"
      id="ixv-10619">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; text-align:left; color:#000000; text-indent:-8.65pt; font-weight:normal; margin-left:8.65pt; font-style:normal;"&gt;&lt;span style="font-size:10.0pt; font-family:Symbol; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;&#xb7;&lt;/span&gt;&lt;span style="word-spacing:5.325pt;"&gt;&#160;&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:italic; color:#000000; font-weight:normal; text-decoration:none;"&gt;Liquidity risk:&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;  &lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;When 
there is little or no active trading market for specific types of securities, it can become more difficult 
to sell the securities in a timely manner at or near their perceived value.  In such a market, the value 
of such securities may fall dramatically, potentially impairing the fund's ability to maintain a stable 
net asset value.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_USTreasurysecuritiesrisk2_S000000113Summary5Member"
      id="ixv-10626">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; text-align:left; color:#000000; text-indent:-8.65pt; font-weight:normal; margin-left:8.65pt; font-style:normal;"&gt;&lt;span style="font-size:10.0pt; font-family:Symbol; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;&#xb7;&lt;/span&gt;&lt;span style="word-spacing:5.325pt;"&gt;&#160;&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:italic; color:#000000; font-weight:normal; text-decoration:none;"&gt;U.S. Treasury securities risk:&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt; 
 A security backed by the U.S. Treasury or the full faith and credit of the United States is guaranteed 
only as to the timely payment of interest and principal when held to maturity, but the market prices 
for such securities are not guaranteed and will fluctuate.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_Marketrisk2_S000000113Summary5Member"
      id="ixv-10632">&lt;p style="margin-top:revert; margin-bottom:revert;font-size:10.0pt; font-family:Serif; text-align:left; color:#000000; text-indent:-8.65pt; font-weight:normal; margin-left:8.65pt; font-style:normal;"&gt;&lt;span style="font-size:10.0pt; font-family:Symbol; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;&#xb7;&lt;/span&gt;&lt;span style="word-spacing:5.325pt;"&gt;&#160;&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:italic; color:#000000; font-weight:normal; text-decoration:none;"&gt;Market 
risk:&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;  The value of the securities in which the fund invests may be affected by political, 
regulatory, economic and social developments.&#160; In addition, turbulence in financial markets and reduced 
liquidity in fixed-income markets may negatively affect many issuers, which could adversely affect the 
fund.  Global economies and financial markets are becoming increasingly interconnected, and conditions 
and events in one country, region or financial market may adversely impact issuers in a different country, 
region or financial market.  These risks may be magnified if certain events or developments adversely 
interrupt the global supply chain; in these and other circumstances, such risks might affect companies 
world-wide.  Local, regional or global events such as war, acts of terrorism, natural disasters, the 
spread of infectious illness or other public health issues, recessions, elevated levels of government 
debt, changes in trade regulation or economic sanctions, internal unrest and discord, or other events 
could have a significant impact on the fund and its investments.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary5Member"
      id="ixv-50721">Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary5Member"
      id="ixv-10641">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;The following bar chart and table provide some indication of the risks of investing 
in the fund.  The bar chart shows changes in the performance of the fund's Service shares from year to 
year.  The table shows the average annual total returns of the fund's Service shares over time.  The 
fund's past performance is not necessarily an indication of how the fund will perform in the future. 
 More recent performance information may be available at www.dreyfus.com.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary5Member"
      id="ixv-50722">The following bar chart and table provide some indication of the risks of investing 
in the fund.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary5Member"
      id="ixv-50723">The 
fund's past performance is not necessarily an indication of how the fund will perform in the future.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary5Member"
      id="ixv-50724">www.dreyfus.com</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:BarChartHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary5Member"
      id="ixv-50725">Year-by-Year Total Returns&#x2005;as of 12/31 each year 
(%)</oef:BarChartHeading>
    <oef:BarChartClosingTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary5Member"
      id="ixv-10661">&lt;p style="font-size:10.0pt; font-family:Serif; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:italic; font-weight:normal; text-decoration:none;"&gt;During the periods shown in the chart:&lt;/span&gt;&lt;br/&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; font-weight:bold; text-decoration:none;"&gt;Best&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; font-weight:bold; text-decoration:none;"&gt; Quarter&lt;/span&gt;&lt;br/&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; font-weight:normal; text-decoration:none;"&gt;2023, 
Q4: 1.13&lt;/span&gt;&lt;br/&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; font-weight:bold; text-decoration:none;"&gt;Worst Quarter&lt;/span&gt;&lt;br/&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; font-weight:normal; text-decoration:none;"&gt;2022, Q1: 0.00&lt;/span&gt;&lt;/p&gt; &lt;p style="margin-top:revert; margin-bottom:revert;font-size:9.0pt; font-family:Serif; text-align:left; color:#000000; text-indent:-4.3pt; font-weight:normal; margin-left:8.6pt; text-decoration:none; font-style:italic;"&gt;The year-to-date total 
return of the fund's Service shares as of March 31, 2026 was 0.68%.&lt;/p&gt;</oef:BarChartClosingTextBlock>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20260131_20260131_C000223305Member_S000000113Member_S000000113Summary5Member"
      id="ixv-50726">Best Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20260131_20260131_C000223305Member_S000000113Member_S000000113Summary5Member"
      id="ixv-50727">2023-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20260131_20260131_C000223305Member_S000000113Member_S000000113Summary5Member"
      decimals="INF"
      id="ixv-50728"
      unitRef="pure">0.0113</oef:BarChartHighestQuarterlyReturn>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20260131_20260131_C000223305Member_S000000113Member_S000000113Summary5Member"
      id="ixv-50729">Worst Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20260131_20260131_C000223305Member_S000000113Member_S000000113Summary5Member"
      id="ixv-50730">2022-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20260131_20260131_C000223305Member_S000000113Member_S000000113Summary5Member"
      decimals="INF"
      id="ixv-50731"
      unitRef="pure">0.0000</oef:BarChartLowestQuarterlyReturn>
    <oef:YearToDateReturnLabel
      contextRef="Context_20260131_20260131_C000223305Member_S000000113Member_S000000113Summary5Member"
      id="ixv-50732">The year-to-date total 
return of the fund's Service shares as of</oef:YearToDateReturnLabel>
    <oef:BarChartYearToDateReturnDate
      contextRef="Context_20260131_20260131_C000223305Member_S000000113Member_S000000113Summary5Member"
      id="ixv-50733">2026-03-31</oef:BarChartYearToDateReturnDate>
    <oef:BarChartYearToDateReturn
      contextRef="Context_20260131_20260131_C000223305Member_S000000113Member_S000000113Summary5Member"
      decimals="INF"
      id="ixv-50734"
      unitRef="pure">0.0068</oef:BarChartYearToDateReturn>
    <oef:AverageAnnualReturnCaption
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary5Member"
      id="ixv-50735">Average 
Annual Total Returns as of 12/31/25</oef:AverageAnnualReturnCaption>
    <oef:PerfInceptionDate
      contextRef="Context_20201116_20251231_C000223305Member_S000000113Member_S000000113Summary5Member"
      id="ixv-50736">2020-11-16</oef:PerfInceptionDate>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000223305Member_S000000113Member_S000000113Summary5Member"
      decimals="INF"
      id="ixv-50737"
      unitRef="pure">0.0332</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000223305Member_S000000113Member_S000000113Summary5Member"
      decimals="INF"
      id="ixv-50738"
      unitRef="pure">0.0251</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20201116_20251231_C000223305Member_S000000113Member_S000000113Summary5Member"
      decimals="INF"
      id="ixv-50739"
      unitRef="pure">0.0245</oef:AvgAnnlRtrPct>
    <oef:PerformanceTableClosingTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary5Member"
      id="ixv-10711">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:9.0pt; font-family:Serif; text-align:left; color:#000000; text-indent:-0.2pt; font-weight:normal; margin-left:4.5pt; text-decoration:none; font-style:italic;"&gt;For the current yield for Service shares, 
call toll-free 1-800-373-9387 (inside the U.S. only).&lt;/p&gt;</oef:PerformanceTableClosingTextBlock>
    <oef:MoneyMarketSevenDayYieldPhone
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary5Member"
      id="ixv-50740">1-800-373-9387</oef:MoneyMarketSevenDayYieldPhone>
    <dei:TradingSymbol
      contextRef="Context_20260131_20260131_C000260907Member_S000000113Member_S000000113Summary6Member"
      id="ixv-50741">TKNXX</dei:TradingSymbol>
    <oef:RiskReturnHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary6Member"
      id="ixv-50742">Fund 
Summary</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary6Member"
      id="ixv-50743"> Investment 
Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary6Member"
      id="ixv-50744">The fund seeks as high a level of current income 
as is consistent with the preservation of capital and the maintenance of liquidity.</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary6Member"
      id="ixv-50745">Fees 
and Expenses</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary6Member"
      id="ixv-11970">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; text-align:left; color:#000000; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
that you may pay if you buy, hold and sell shares of the fund.  &lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and examples below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:OperatingExpensesCaption
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary6Member"
      id="ixv-50746">Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20260131_20260131_C000260907Member_S000000113Member_S000000113Summary6Member"
      decimals="INF"
      id="ixv-50747"
      unitRef="pure">0.0020</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20260131_20260131_C000260907Member_S000000113Member_S000000113Summary6Member"
      decimals="INF"
      id="ixv-50748"
      unitRef="pure">0.0004</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20260131_20260131_C000260907Member_S000000113Member_S000000113Summary6Member"
      decimals="INF"
      id="ixv-50749"
      unitRef="pure">0.0024</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20260131_20260131_C000260907Member_S000000113Member_S000000113Summary6Member"
      decimals="INF"
      id="_421_"
      unitRef="pure">-0.0003</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20260131_20260131_C000260907Member_S000000113Member_S000000113Summary6Member"
      decimals="INF"
      id="ixv-50751"
      unitRef="pure">0.0021</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary6Member"
      id="ixv-50752">Example</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary6Member"
      id="ixv-12026">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;The 
Example is intended to help you compare the cost of investing in the fund with the cost of investing 
in other mutual funds.  The Example assumes that you invest $10,000 in the fund for the time periods 
indicated and then hold or redeem all of your shares at the end of those periods.  The Example also assumes 
that your investment has a 5% return each year and that the fund's operating expenses remain the same. 
 The one-year example and the first year of the three-, five- and ten-years examples are based on net 
operating expenses, which reflect the contractual undertaking by BNY Mellon Investment Adviser, Inc. 
 Although your actual costs may be higher or lower, based on these assumptions your costs would be:&lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20260131_20260131_C000260907Member_S000000113Member_S000000113Summary6Member"
      decimals="INF"
      id="ixv-50753"
      unitRef="usd">22</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20260131_20260131_C000260907Member_S000000113Member_S000000113Summary6Member"
      decimals="INF"
      id="ixv-50754"
      unitRef="usd">74</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20260131_20260131_C000260907Member_S000000113Member_S000000113Summary6Member"
      decimals="INF"
      id="ixv-50755"
      unitRef="usd">132</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20260131_20260131_C000260907Member_S000000113Member_S000000113Summary6Member"
      decimals="INF"
      id="ixv-50756"
      unitRef="usd">303</oef:ExpenseExampleYear10>
    <oef:StrategyHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary6Member"
      id="ixv-50757">Principal Investment Strategy</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary6Member"
      id="ixv-12059">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;The 
fund pursues its investment objective by investing only in U.S. Treasury securities, including those 
with floating or variable rates of interest, and cash.  The fund is a money market fund subject to the 
maturity, quality, liquidity and diversification requirements of Rule 2a-7 under the Investment Company 
Act of 1940, as amended, and seeks to maintain a stable share price of $1.00.  &lt;/p&gt;&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;The 
fund is a "government money market fund," as that term is defined in Rule 2a-7, and as such is required 
to invest at least 99.5% of its total assets in securities issued or guaranteed as to principal and interest 
by the U.S. government or its agencies or instrumentalities, repurchase agreements collateralized solely 
by cash and/or government securities, and cash.  The fund typically invests exclusively in U.S. Treasury 
securities.  &lt;/p&gt;&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;By investing exclusively in U.S. Treasury securities, income 
paid by the fund generally will be exempt from state and local taxes.  Because rules regarding the state 
and local taxation of dividend income can differ from state to state, investors are urged to consult 
their tax advisers about the taxation of the fund's dividend income in their state and locality.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_PrincipalRisks2_S000000113Summary6Member"
      id="ixv-12066">&lt;div style="border-bottom:0.25pt; border-bottom-style:solid; border-bottom-color:#000000; padding:0pt 0pt 1pt 0pt;"&gt;&lt;div style="font-size:12.0pt; font-family:Arial; text-align:left; color:#000000; font-weight:bold;"&gt;&lt;span style="font-size:12.0pt; font-family:Arial; font-style:normal; color:#000000; font-weight:bold; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/div&gt;&lt;/div&gt;&lt;p style="margin-top:revert; margin-bottom:revert;font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;An investment in the fund is not a bank account 
or a bank deposit.  It is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) 
or any other government agency.  You could lose money by investing in the fund.  Although the fund seeks 
to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so.  The 
fund's yield will fluctuate as the short-term securities in its portfolio mature or are sold and the 
proceeds are reinvested in securities with different interest rates.  BNY Mellon Investment Adviser, 
Inc. and its affiliates are not required to reimburse the fund for losses, and you should not expect 
that BNY Mellon Investment Adviser, Inc. or its affiliates will provide financial support to the fund 
at any time, including during periods of market stress.  The fund is subject to the following principal 
risks:&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_RiskNotInsuredMember_S000000113Summary6Member"
      id="ixv-50758">An investment in the fund is not a bank account 
or a bank deposit.  It is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) 
or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_RiskLoseMoneyMember_S000000113Summary6Member"
      id="ixv-50759">  You could lose money by investing in the fund.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_RiskMoneyMarketFundMayNotPreserveDollarMember_S000000113Summary6Member"
      id="ixv-50760">Although the fund seeks 
to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_RiskMoneyMarketFundPriceFluctuatesMember_S000000113Summary6Member"
      id="ixv-50761">The 
fund's yield will fluctuate as the short-term securities in its portfolio mature or are sold and the 
proceeds are reinvested in securities with different interest rates.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_Interestraterisk2_S000000113Summary6Member"
      id="ixv-12071">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; text-align:left; color:#000000; text-indent:-8.65pt; font-weight:normal; margin-left:8.65pt; font-style:normal;"&gt;&lt;span style="font-size:10.0pt; font-family:Symbol; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;&#xb7;&lt;/span&gt;&lt;span style="word-spacing:5.325pt;"&gt;&#160;&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:italic; color:#000000; font-weight:normal; text-decoration:none;"&gt;Interest 
rate risk:&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;  This risk refers to the decline in the prices of fixed-income 
securities that may accompany a rise in the overall level of interest rates.  A sharp and unexpected 
rise in interest rates could impair the fund's ability to maintain a stable net &lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;asset 
value.  A wide variety of market factors can cause interest rates to rise, including central bank monetary 
policy, rising inflation and changes in general economic conditions.  It is difficult to predict the 
pace at which central banks or monetary authorities may increase (or decrease) interest rates or the 
timing, frequency, or magnitude of such changes.  Changing interest rates may have unpredictable effects 
on markets&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;, may result in heightened market volatility and may detract 
from fund performance.  For floating and variable rate obligations, there may be a lag between an actual 
change in the underlying interest rate benchmark and the reset time for an interest payment of such an 
obligation, which could harm or benefit the fund, depending on the interest rate environment or other 
circumstances.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_Liquidityrisk2_S000000113Summary6Member"
      id="ixv-12079">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; text-align:left; color:#000000; text-indent:-8.65pt; font-weight:normal; margin-left:8.65pt; font-style:normal;"&gt;&lt;span style="font-size:10.0pt; font-family:Symbol; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;&#xb7;&lt;/span&gt;&lt;span style="word-spacing:5.325pt;"&gt;&#160;&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:italic; color:#000000; font-weight:normal; text-decoration:none;"&gt;Liquidity risk:&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;  &lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;When 
there is little or no active trading market for specific types of securities, it can become more difficult 
to sell the securities in a timely manner at or near their perceived value.  In such a market, the value 
of such securities may fall dramatically, potentially impairing the fund's ability to maintain a stable 
net asset value.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_USTreasurysecuritiesrisk2_S000000113Summary6Member"
      id="ixv-12086">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; text-align:left; color:#000000; text-indent:-8.65pt; font-weight:normal; margin-left:8.65pt; font-style:normal;"&gt;&lt;span style="font-size:10.0pt; font-family:Symbol; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;&#xb7;&lt;/span&gt;&lt;span style="word-spacing:5.325pt;"&gt;&#160;&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:italic; color:#000000; font-weight:normal; text-decoration:none;"&gt;U.S. Treasury securities risk:&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt; 
 A security backed by the U.S. Treasury or the full faith and credit of the United States is guaranteed 
only as to the timely payment of interest and principal when held to maturity, but the market prices 
for such securities are not guaranteed and will fluctuate.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_Marketrisk2_S000000113Summary6Member"
      id="ixv-12092">&lt;p style="margin-top:revert; margin-bottom:revert;font-size:10.0pt; font-family:Serif; text-align:left; color:#000000; text-indent:-8.65pt; font-weight:normal; margin-left:8.65pt; font-style:normal;"&gt;&lt;span style="font-size:10.0pt; font-family:Symbol; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;&#xb7;&lt;/span&gt;&lt;span style="word-spacing:5.325pt;"&gt;&#160;&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:italic; color:#000000; font-weight:normal; text-decoration:none;"&gt;Market 
risk:&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;  The value of the securities in which the fund invests may be affected by political, 
regulatory, economic and social developments.&#160; In addition, turbulence in financial markets and reduced 
liquidity in fixed-income markets may negatively affect many issuers, which could adversely affect the 
fund.  Global economies and financial markets are becoming increasingly interconnected, and conditions 
and events in one country, region or financial market may adversely impact issuers in a different country, 
region or financial market.  These risks may be magnified if certain events or developments adversely 
interrupt the global supply chain; in these and other circumstances, such risks might affect companies 
world-wide.  Local, regional or global events such as war, acts of terrorism, natural disasters, the 
spread of infectious illness or other public health issues, recessions, elevated levels of government 
debt, changes in trade regulation or economic sanctions, internal unrest and discord, or other events 
could have a significant impact on the fund and its investments.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary6Member"
      id="ixv-50762">Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary6Member"
      id="ixv-12101">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;The following bar chart and table provide some indication of the risks of investing 
in the fund.  The bar chart shows changes in the performance of the fund's Institutional shares from 
year to year.  The table shows the average annual total returns of the fund's Institutional shares over 
time.  The fund's past performance is not necessarily an indication of how the fund will perform in the 
future.  More recent performance information may be available at www.dreyfus.com.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary6Member"
      id="ixv-50763">The following bar chart and table provide some indication of the risks of investing 
in the fund.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary6Member"
      id="ixv-50764">The fund's past performance is not necessarily an indication of how the fund will perform in the 
future.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary6Member"
      id="ixv-50765">www.dreyfus.com</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:BarChartHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary6Member"
      id="ixv-50766">Year-by-Year 
Total Returns&#x2005;as of 12/31 each year (%)</oef:BarChartHeading>
    <oef:BarChartClosingTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary6Member"
      id="ixv-12128">&lt;p style="font-size:10.0pt; font-family:Serif; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:italic; font-weight:normal; text-decoration:none;"&gt;During the periods shown in the chart:&lt;/span&gt;&lt;br/&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; font-weight:bold; text-decoration:none;"&gt;Best&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; font-weight:bold; text-decoration:none;"&gt; Quarter&lt;/span&gt;&lt;br/&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; font-weight:normal; text-decoration:none;"&gt;2023, 
Q4: 1.33&lt;/span&gt;&lt;br/&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; font-weight:bold; text-decoration:none;"&gt;Worst Quarter&lt;/span&gt;&lt;br/&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; font-weight:normal; text-decoration:none;"&gt;2021, Q4: 0.00&lt;/span&gt;&lt;/p&gt; &lt;p style="margin-top:revert; margin-bottom:revert;font-size:9.0pt; font-family:Serif; text-align:left; color:#000000; text-indent:-4.3pt; font-weight:normal; margin-left:8.6pt; text-decoration:none; font-style:italic;"&gt;The year-to-date total return of the fund's 
Token-Enabled  shares as of March 31, 2026 was 0.87%.&lt;/p&gt;</oef:BarChartClosingTextBlock>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20260131_20260131_C000000255Member_S000000113Member_S000000113Summary6Member"
      id="ixv-50767">Best Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20260131_20260131_C000000255Member_S000000113Member_S000000113Summary6Member"
      id="ixv-50768">2023-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20260131_20260131_C000000255Member_S000000113Member_S000000113Summary6Member"
      decimals="INF"
      id="ixv-50769"
      unitRef="pure">0.0133</oef:BarChartHighestQuarterlyReturn>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20260131_20260131_C000000255Member_S000000113Member_S000000113Summary6Member"
      id="ixv-50770">Worst Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20260131_20260131_C000000255Member_S000000113Member_S000000113Summary6Member"
      id="ixv-50771">2021-12-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20260131_20260131_C000000255Member_S000000113Member_S000000113Summary6Member"
      decimals="INF"
      id="ixv-50772"
      unitRef="pure">0.0000</oef:BarChartLowestQuarterlyReturn>
    <oef:YearToDateReturnLabel
      contextRef="Context_20260131_20260131_C000000255Member_S000000113Member_S000000113Summary6Member"
      id="ixv-50773">The year-to-date total return of the fund's 
Token-Enabled  shares as of</oef:YearToDateReturnLabel>
    <oef:BarChartYearToDateReturnDate
      contextRef="Context_20260131_20260131_C000000255Member_S000000113Member_S000000113Summary6Member"
      id="ixv-50774">2026-03-31</oef:BarChartYearToDateReturnDate>
    <oef:BarChartYearToDateReturn
      contextRef="Context_20260131_20260131_C000000255Member_S000000113Member_S000000113Summary6Member"
      decimals="INF"
      id="ixv-50775"
      unitRef="pure">0.0087</oef:BarChartYearToDateReturn>
    <oef:AverageAnnualReturnCaption
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary6Member"
      id="ixv-50776">Average 
Annual Total Returns as of 12/31/25</oef:AverageAnnualReturnCaption>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000000255Member_S000000113Member_S000000113Summary6Member"
      decimals="INF"
      id="_483_"
      unitRef="pure">0.0414</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000000255Member_S000000113Member_S000000113Summary6Member"
      decimals="INF"
      id="_484_"
      unitRef="pure">0.0311</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000000255Member_S000000113Member_S000000113Summary6Member"
      decimals="INF"
      id="_485_"
      unitRef="pure">0.0205</oef:AvgAnnlRtrPct>
    <oef:PerformanceTableClosingTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary6Member"
      id="ixv-12175">&lt;p style="margin-top:revert; margin-bottom:revert;font-size:9.0pt; font-family:Serif; text-align:left; font-weight:normal; margin-left:4.3pt; text-decoration:none; font-style:italic;"&gt;For the current yield for Token-Enabled shares, call toll-free 1-800-373-9387 (inside 
the U.S. only).  Individuals or entities for whom institutions may purchase or redeem shares should call 
the institution directly.&lt;/p&gt;</oef:PerformanceTableClosingTextBlock>
    <oef:MoneyMarketSevenDayYieldPhone
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary6Member"
      id="ixv-50780">1-800-373-9387</oef:MoneyMarketSevenDayYieldPhone>
    <dei:TradingSymbol
      contextRef="Context_20260131_20260131_C000223306Member_S000000113Member_S000000113Summary7Member"
      id="ixv-50781">DTJXX</dei:TradingSymbol>
    <oef:RiskReturnHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary7Member"
      id="ixv-50782">Fund 
Summary</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary7Member"
      id="ixv-50783">Investment 
Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary7Member"
      id="ixv-50784">The fund seeks as high a level of current income 
as is consistent with the preservation of capital and the maintenance of liquidity.</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary7Member"
      id="ixv-50785">Fees 
and Expenses</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary7Member"
      id="ixv-13594">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; text-align:left; color:#000000; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
that you may pay if you buy, hold and sell shares of the fund.  &lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and examples below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:OperatingExpensesCaption
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary7Member"
      id="ixv-50786">Annual Fund Operating Expenses (expenses 
that you pay each year as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20260131_20260131_C000223306Member_S000000113Member_S000000113Summary7Member"
      decimals="INF"
      id="ixv-50788"
      unitRef="pure">0.0020</oef:ManagementFeesOverAssets>
    <oef:Component2OtherExpensesOverAssets
      contextRef="Context_20260131_20260131_C000223306Member_S000000113Member_S000000113Summary7Member"
      decimals="INF"
      id="ixv-50789"
      unitRef="pure">0.0025</oef:Component2OtherExpensesOverAssets>
    <oef:Component3OtherExpensesOverAssets
      contextRef="Context_20260131_20260131_C000223306Member_S000000113Member_S000000113Summary7Member"
      decimals="INF"
      id="ixv-50790"
      unitRef="pure">0.0002</oef:Component3OtherExpensesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20260131_20260131_C000223306Member_S000000113Member_S000000113Summary7Member"
      decimals="INF"
      id="ixv-50791"
      unitRef="pure">0.0027</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20260131_20260131_C000223306Member_S000000113Member_S000000113Summary7Member"
      decimals="INF"
      id="ixv-50792"
      unitRef="pure">0.0047</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20260131_20260131_C000223306Member_S000000113Member_S000000113Summary7Member"
      decimals="INF"
      id="_501_"
      unitRef="pure">-0.0003</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20260131_20260131_C000223306Member_S000000113Member_S000000113Summary7Member"
      decimals="INF"
      id="ixv-50794"
      unitRef="pure">0.0044</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary7Member"
      id="ixv-50795">Example</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary7Member"
      id="ixv-13664">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;The Example 
is intended to help you compare the cost of investing in the fund with the cost of investing in other 
mutual funds.  The Example assumes that you invest $10,000 in the fund for the time periods indicated 
and then hold or redeem all of your shares at the end of those periods.  The Example also assumes that 
your investment has a 5% return each year and that the fund's operating expenses remain the same.  The 
one-year example and the first year of the three-, five- and ten-years examples are based on net operating 
expenses, which reflect the contractual undertaking by BNY Mellon Investment Adviser, Inc.  Although 
your actual costs may be higher or lower, based on these assumptions your costs would be:&lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20260131_20260131_C000223306Member_S000000113Member_S000000113Summary7Member"
      decimals="INF"
      id="ixv-50796"
      unitRef="usd">45</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20260131_20260131_C000223306Member_S000000113Member_S000000113Summary7Member"
      decimals="INF"
      id="ixv-50797"
      unitRef="usd">148</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20260131_20260131_C000223306Member_S000000113Member_S000000113Summary7Member"
      decimals="INF"
      id="ixv-50798"
      unitRef="usd">260</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20260131_20260131_C000223306Member_S000000113Member_S000000113Summary7Member"
      decimals="INF"
      id="ixv-50799"
      unitRef="usd">589</oef:ExpenseExampleYear10>
    <oef:StrategyHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary7Member"
      id="ixv-50800">Principal Investment Strategy</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary7Member"
      id="ixv-13697">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;The 
fund pursues its investment objective by investing only in U.S. Treasury securities, including those 
with floating or variable rates of interest, and cash.  The fund is a money market fund subject to the 
maturity, quality, liquidity and diversification requirements of Rule 2a-7 under the Investment Company 
Act of 1940, as amended, and seeks to maintain a stable share price of $1.00.&lt;/p&gt;&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;The 
fund is a "government money market fund," as that term is defined in Rule 2a-7, and as such is required 
to invest at least 99.5% of its total assets in securities issued or guaranteed as to principal and interest 
by the U.S. government or its agencies or instrumentalities, repurchase agreements collateralized solely 
by cash and/or government securities, and cash.  The fund typically invests exclusively in U.S. Treasury 
securities.&lt;/p&gt;&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;By investing exclusively in U.S. Treasury securities, income paid by the fund 
generally will be exempt from state and local taxes.  Because rules regarding the state and local taxation 
of dividend income can differ from state to state, investors are urged to consult their tax advisers 
about the taxation of the fund's dividend income in their state and locality.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_PrincipalRisks2_S000000113Summary7Member"
      id="ixv-13705">&lt;div style="border-bottom:0.25pt; border-bottom-style:solid; border-bottom-color:#000000; margin-bottom:12pt; padding:0pt 0pt 1pt 0pt;"&gt;&lt;div style="font-size:12.0pt; font-family:Arial; text-align:left; color:#000000; font-weight:bold;"&gt;&lt;span style="font-size:12.0pt; font-family:Arial; font-style:normal; color:#000000; font-weight:bold; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/div&gt;&lt;/div&gt;&lt;p style="margin-top:revert; margin-bottom:revert;font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;An investment in the fund is not a bank account 
or a bank deposit.  It is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) 
or any other government agency.  You could lose money by investing in the fund.  Although the fund seeks 
to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so.  The 
fund's yield will fluctuate as the short-term securities in its portfolio mature or are sold and the 
proceeds are reinvested in securities with different interest rates.  BNY Mellon Investment Adviser, 
Inc. and its affiliates are not required to reimburse the fund for losses, and you should not expect 
that BNY Mellon Investment Adviser, Inc. or its affiliates will provide financial support to the fund 
at any time, including during periods of market stress.  The fund is subject to the following principal 
risks:&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_RiskNotInsuredMember_S000000113Summary7Member"
      id="ixv-50801">An investment in the fund is not a bank account 
or a bank deposit.  It is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) 
or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_RiskLoseMoneyMember_S000000113Summary7Member"
      id="ixv-50802">  You could lose money by investing in the fund.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_RiskMoneyMarketFundMayNotPreserveDollarMember_S000000113Summary7Member"
      id="ixv-50803">Although the fund seeks 
to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_RiskMoneyMarketFundPriceFluctuatesMember_S000000113Summary7Member"
      id="ixv-50804">The 
fund's yield will fluctuate as the short-term securities in its portfolio mature or are sold and the 
proceeds are reinvested in securities with different interest rates.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_Interestraterisk2_S000000113Summary7Member"
      id="ixv-13710">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; text-align:left; color:#000000; text-indent:-8.65pt; font-weight:normal; margin-left:8.65pt; font-style:normal;"&gt;&lt;span style="font-size:10.0pt; font-family:Symbol; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;&#xb7;&lt;/span&gt;&lt;span style="word-spacing:5.325pt;"&gt;&#160;&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:italic; color:#000000; font-weight:normal; text-decoration:none;"&gt;Interest 
rate risk:&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;  This risk refers to the decline in the prices of fixed-income 
securities that may accompany a rise in the overall level of interest rates.  A sharp and unexpected 
rise in interest rates could impair the fund's ability to maintain a stable net &lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;asset 
value.  A wide variety of market factors can cause interest rates to rise, including central bank monetary 
policy, rising inflation and changes in general economic conditions.  It is difficult to predict the 
pace at which central banks or monetary authorities may increase (or decrease) interest rates or the 
timing, frequency, or magnitude of such changes.  Changing interest rates may have unpredictable effects 
on markets&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;, may result in heightened market volatility and may detract 
from fund performance.  For floating and variable rate obligations, there may be a lag between an actual 
change in the underlying interest rate benchmark and the reset time for an interest payment of such an 
obligation, which could harm or benefit the fund, depending on the interest rate environment or other 
circumstances.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_Liquidityrisk2_S000000113Summary7Member"
      id="ixv-13718">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; text-align:left; color:#000000; text-indent:-8.65pt; font-weight:normal; margin-left:8.65pt; font-style:normal;"&gt;&lt;span style="font-size:10.0pt; font-family:Symbol; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;&#xb7;&lt;/span&gt;&lt;span style="word-spacing:5.325pt;"&gt;&#160;&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:italic; color:#000000; font-weight:normal; text-decoration:none;"&gt;Liquidity risk:&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;  &lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;When 
there is little or no active trading market for specific types of securities, it can become more difficult 
to sell the securities in a timely manner at or near their perceived value.  In such a market, the value 
of such securities may fall dramatically, potentially impairing the fund's ability to maintain a stable 
net asset value.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_USTreasurysecuritiesrisk2_S000000113Summary7Member"
      id="ixv-13725">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; text-align:left; color:#000000; text-indent:-8.65pt; font-weight:normal; margin-left:8.65pt; font-style:normal;"&gt;&lt;span style="font-size:10.0pt; font-family:Symbol; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;&#xb7;&lt;/span&gt;&lt;span style="word-spacing:5.325pt;"&gt;&#160;&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:italic; color:#000000; font-weight:normal; text-decoration:none;"&gt;U.S. Treasury securities risk:&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt; 
 A security backed by the U.S. Treasury or the full faith and credit of the United States is guaranteed 
only as to the timely payment of interest and principal when held to maturity, but the market prices 
for such securities are not guaranteed and will fluctuate.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_Marketrisk2_S000000113Summary7Member"
      id="ixv-13731">&lt;p style="margin-top:revert; margin-bottom:revert;font-size:10.0pt; font-family:Serif; text-align:left; color:#000000; text-indent:-8.65pt; font-weight:normal; margin-left:8.65pt; font-style:normal;"&gt;&lt;span style="font-size:10.0pt; font-family:Symbol; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;&#xb7;&lt;/span&gt;&lt;span style="word-spacing:5.325pt;"&gt;&#160;&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:italic; color:#000000; font-weight:normal; text-decoration:none;"&gt;Market 
risk:&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;  The value of the securities in which the fund invests may be affected by political, 
regulatory, economic and social developments.&#160; In addition, turbulence in financial markets and reduced 
liquidity in fixed-income markets may negatively affect many issuers, which could adversely affect the 
fund.  Global economies and financial markets are becoming increasingly interconnected, and conditions 
and events in one country, region or financial market may adversely impact issuers in a different country, 
region or financial market.  These risks may be magnified if certain events or developments adversely 
interrupt the global supply chain; in these and other circumstances, such risks might affect companies 
world-wide.  Local, regional or global events such as war, acts of terrorism, natural disasters, the 
spread of infectious illness or other public health issues, recessions, elevated levels of government 
debt, changes in trade regulation or economic sanctions, internal unrest and discord, or other events 
could have a significant impact on the fund and its investments.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary7Member"
      id="ixv-50805">Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary7Member"
      id="ixv-13740">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:10.0pt; font-family:Serif; font-style:normal; text-align:left; color:#000000; font-weight:normal; text-decoration:none;"&gt;The following bar chart and table provide some indication of the risks of investing 
in the fund.  The bar chart shows changes in the performance of the fund's Wealth shares from year to 
year.  The table shows the average annual total returns of the fund's Wealth shares over time.  The fund's 
past performance is not necessarily an indication of how the fund will perform in the future.  More recent 
performance information may be available at www.dreyfus.com.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary7Member"
      id="ixv-50806">The following bar chart and table provide some indication of the risks of investing 
in the fund.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary7Member"
      id="ixv-50807">The fund's 
past performance is not necessarily an indication of how the fund will perform in the future.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary7Member"
      id="ixv-50808">www.dreyfus.com</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:BarChartHeading
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary7Member"
      id="ixv-50809">Year-by-Year Total Returns&#x2005;as of 12/31 each year (%)</oef:BarChartHeading>
    <oef:BarChartClosingTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary7Member"
      id="ixv-13760">&lt;p style="font-size:10.0pt; font-family:Serif; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:italic; font-weight:normal; text-decoration:none;"&gt;During the periods shown in the chart:&lt;/span&gt;&lt;br/&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; font-weight:bold; text-decoration:none;"&gt;Best&lt;/span&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; font-weight:bold; text-decoration:none;"&gt; Quarter&lt;/span&gt;&lt;br/&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; font-weight:normal; text-decoration:none;"&gt;2023, 
Q4: 1.26&lt;/span&gt;&lt;br/&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; font-weight:bold; text-decoration:none;"&gt;Worst Quarter&lt;/span&gt;&lt;br/&gt;&lt;span style="font-size:10.0pt; font-family:Serif; font-style:normal; font-weight:normal; text-decoration:none;"&gt;2022, Q1: 0.00&lt;/span&gt;&lt;/p&gt; &lt;p style="margin-top:revert; margin-bottom:revert;font-size:9.0pt; font-family:Serif; text-align:left; color:#000000; text-indent:-4.3pt; font-weight:normal; margin-left:8.6pt; text-decoration:none; font-style:italic;"&gt;The year-to-date total 
return of the fund's Wealth shares as of March 31, 2026 was 0.81%.&lt;/p&gt;</oef:BarChartClosingTextBlock>
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      contextRef="Context_20260131_20260131_C000223306Member_S000000113Member_S000000113Summary7Member"
      id="ixv-50810">Best Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20260131_20260131_C000223306Member_S000000113Member_S000000113Summary7Member"
      id="ixv-50811">2023-12-31</oef:BarChartHighestQuarterlyReturnDate>
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      contextRef="Context_20260131_20260131_C000223306Member_S000000113Member_S000000113Summary7Member"
      decimals="INF"
      id="ixv-50812"
      unitRef="pure">0.0126</oef:BarChartHighestQuarterlyReturn>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20260131_20260131_C000223306Member_S000000113Member_S000000113Summary7Member"
      id="ixv-50813">Worst Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20260131_20260131_C000223306Member_S000000113Member_S000000113Summary7Member"
      id="ixv-50814">2022-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20260131_20260131_C000223306Member_S000000113Member_S000000113Summary7Member"
      decimals="INF"
      id="ixv-50815"
      unitRef="pure">0.0000</oef:BarChartLowestQuarterlyReturn>
    <oef:YearToDateReturnLabel
      contextRef="Context_20260131_20260131_C000223306Member_S000000113Member_S000000113Summary7Member"
      id="ixv-50816">The year-to-date total 
return of the fund's Wealth shares as of</oef:YearToDateReturnLabel>
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      contextRef="Context_20260131_20260131_C000223306Member_S000000113Member_S000000113Summary7Member"
      id="ixv-50817">2026-03-31</oef:BarChartYearToDateReturnDate>
    <oef:BarChartYearToDateReturn
      contextRef="Context_20260131_20260131_C000223306Member_S000000113Member_S000000113Summary7Member"
      decimals="INF"
      id="ixv-50818"
      unitRef="pure">0.0081</oef:BarChartYearToDateReturn>
    <oef:AverageAnnualReturnCaption
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary7Member"
      id="ixv-50819">Average 
Annual Total Returns as of 12/31/25</oef:AverageAnnualReturnCaption>
    <oef:PerfInceptionDate
      contextRef="Context_20201116_20251231_C000223306Member_S000000113Member_S000000113Summary7Member"
      id="ixv-50820">2020-11-16</oef:PerfInceptionDate>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000223306Member_S000000113Member_S000000113Summary7Member"
      decimals="INF"
      id="ixv-50821"
      unitRef="pure">0.0387</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20201116_20251231_C000223306Member_S000000113Member_S000000113Summary7Member"
      decimals="INF"
      id="ixv-50822"
      unitRef="pure">0.0284</oef:AvgAnnlRtrPct>
    <oef:PerformanceTableClosingTextBlock
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary7Member"
      id="ixv-13810">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:9.0pt; font-family:Serif; text-align:left; color:#000000; font-weight:normal; margin-left:4.3pt; text-decoration:none; font-style:italic;"&gt;For the current yield for Wealth shares, call toll-free 1-800-373-9387 
(inside the U.S. only).&lt;/p&gt;</oef:PerformanceTableClosingTextBlock>
    <oef:MoneyMarketSevenDayYieldPhone
      contextRef="Context_20260131_20260131_S000000113Member_S000000113Summary7Member"
      id="ixv-50823">1-800-373-9387</oef:MoneyMarketSevenDayYieldPhone>
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    <dei:DocumentPeriodEndDate contextRef="Context_20260131_20260131" id="ixv-50827">2026-01-31</dei:DocumentPeriodEndDate>
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    <dei:AmendmentFlag contextRef="Context_20260131_20260131" id="ixv-50829">false</dei:AmendmentFlag>
    <dei:DocumentCreationDate contextRef="Context_20260131_20260131" id="ixv-50830">2026-05-29</dei:DocumentCreationDate>
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      contextRef="Context_20241231_20241231_C000000256Member_S000000113Member_S000000113Summary3Member"
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      contextRef="Context_20211231_20211231_C000223306Member_S000000113Member_S000000113Summary7Member"
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      contextRef="Context_20221231_20221231_C000223306Member_S000000113Member_S000000113Summary7Member"
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      unitRef="pure">0.0467</oef:AnnlRtrPct>
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      contextRef="Context_20241231_20241231_C000223306Member_S000000113Member_S000000113Summary7Member"
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      unitRef="pure">0.0487</oef:AnnlRtrPct>
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      unitRef="pure">0.0386999988555908</oef:AnnlRtrPct>
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      contextRef="Context_20260131_20260131_C000223305Member_S000000113Member_S000000113Summary5Member"
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1, 2027</oef:FeeWaiverOrReimbursementOverAssetsDateOfTermination>
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    <link:footnoteLink
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        <link:footnote id="fn1_" xlink:label="fn1_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:span style="font-size:9.0pt; font-family:Serif; font-style:italic; color:#000000; font-weight:normal; text-decoration:none;"> 
 The fund's investment adviser, BNY Mellon Investment Adviser, Inc., has contractually agreed, until 
June 1, 2027, to waive receipt of a portion of its management fee in the amount of .03% of the value 
of the fund's average daily net assets.  On or after June 1, 2027, BNY Mellon Investment Adviser, Inc. 
may terminate this waiver agreement at any time.</xhtml:span></link:footnote>
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        <link:footnote id="fn2_" xlink:label="fn2_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:span style="font-size:9.0pt; font-family:Serif; font-style:italic; color:#000000; font-weight:normal; text-decoration:none;">  Amount 
represents less than .01%.</xhtml:span></link:footnote>
        <link:footnoteArc
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          xlink:from="_101_"
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        <link:footnote id="fn3_" xlink:label="fn3_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:span style="font-size:9.0pt; font-family:Serif; font-style:italic; color:#000000; font-weight:normal; text-decoration:none;"> 
 The fund's investment adviser, BNY Mellon Investment Adviser, Inc., has contractually agreed, until 
June 1, 2027, to waive receipt of a portion of its management fee in the amount of .03% of the value 
of the fund's average daily net assets.  On or after June 1, 2027, BNY Mellon Investment Adviser, Inc. 
may terminate this waiver agreement at any time.</xhtml:span></link:footnote>
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        <link:footnote id="fn4_" xlink:label="fn4_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:span style="font-size:9.0pt; font-family:Serif; font-style:italic; color:#000000; font-weight:normal; text-decoration:none;">Amount 
represents less than .01%.</xhtml:span></link:footnote>
        <link:footnoteArc
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          xlink:from="_182_"
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        <link:loc
          xlink:href="#_185_"
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        <link:footnote id="fn5_" xlink:label="fn5_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:span style="font-size:9.0pt; font-family:Serif; font-style:italic; color:#000000; font-weight:normal; text-decoration:none;">The fund's investment adviser, BNY Mellon Investment Adviser, Inc., has contractually 
agreed, until June 1, 2027, to waive receipt of a portion of its management fee in the amount of .03% 
of the value of the fund's average daily net assets.  On or after June 1, 2027, BNY Mellon Investment 
Adviser, Inc. may terminate this waiver agreement at any time.</xhtml:span></link:footnote>
        <link:footnoteArc
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          xlink:from="_185_"
          xlink:to="fn5_"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#_263_"
          xlink:label="_263_"
          xlink:type="locator"/>
        <link:footnote id="fn6_" xlink:label="fn6_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:span style="font-size:9.0pt; font-family:Serif; font-style:italic; color:#000000; font-weight:normal; text-decoration:none;">  Amount 
represents less than .01%.</xhtml:span></link:footnote>
        <link:footnoteArc
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          xlink:from="_263_"
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        <link:loc
          xlink:href="#_266_"
          xlink:label="_266_"
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        <link:footnote id="fn7_" xlink:label="fn7_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:span style="font-size:9.0pt; font-family:Serif; font-style:italic; color:#000000; font-weight:normal; text-decoration:none;"> 
 The fund's investment adviser, BNY Mellon Investment Adviser, Inc., has contractually agreed, until 
June 1, 2027, to waive receipt of a portion of its management fee in the amount of .03% of the value 
of the fund's average daily net assets.  On or after June 1, 2027, BNY Mellon Investment Adviser, Inc. 
may terminate this waiver agreement at any time.</xhtml:span></link:footnote>
        <link:footnoteArc
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          xlink:from="_266_"
          xlink:to="fn7_"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#_347_"
          xlink:label="_347_"
          xlink:type="locator"/>
        <link:footnote id="fn8_" xlink:label="fn8_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:span style="font-size:9.0pt; font-family:Serif; font-style:italic; color:#000000; font-weight:normal; text-decoration:none;">The 
fund's investment adviser, BNY Mellon Investment Adviser, Inc., has contractually agreed, until June 
1, 2027, to waive receipt of a portion of its management fee in the amount of .03% of the value of the 
fund's average daily net assets.  On or after June 1, 2027, BNY Mellon Investment Adviser, Inc. may terminate 
this waiver agreement at any time.</xhtml:span></link:footnote>
        <link:footnoteArc
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          xlink:from="_347_"
          xlink:to="fn8_"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#_421_"
          xlink:label="_421_"
          xlink:type="locator"/>
        <link:footnote id="fn9_" xlink:label="fn9_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:span style="font-size:9.0pt; font-family:Serif; font-style:italic; color:#000000; font-weight:normal; text-decoration:none;"> 
 The fund's investment adviser, BNY Mellon Investment Adviser, Inc., has contractually agreed, until 
June 1, 2027 to waive receipt of a portion of its management fee in the amount of .03% of the value of 
the fund's average daily net assets.  On or after June 1, 2027, BNY Mellon Investment Adviser, Inc. may 
terminate this waiver agreement at any time.</xhtml:span></link:footnote>
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          xlink:from="_421_"
          xlink:to="fn9_"
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        <link:loc
          xlink:href="#_483_"
          xlink:label="_483_"
          xlink:type="locator"/>
        <link:loc
          xlink:href="#_485_"
          xlink:label="_485_"
          xlink:type="locator"/>
        <link:loc
          xlink:href="#_484_"
          xlink:label="_484_"
          xlink:type="locator"/>
        <link:footnote id="fn10_" xlink:label="fn10_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:span style="font-size:9.0pt; font-family:Serif; font-style:italic; font-weight:normal; text-decoration:none;">Reflects the performance 
of the fund's Institutional shares, which are offered in a separate prospectus. </xhtml:span></link:footnote>
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          xlink:from="_485_"
          xlink:to="fn10_"
          xlink:type="arc"/>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="_484_"
          xlink:to="fn10_"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#_501_"
          xlink:label="_501_"
          xlink:type="locator"/>
        <link:footnote id="fn11_" xlink:label="fn11_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:span style="font-size:9.0pt; font-family:Serif; font-style:italic; color:#000000; font-weight:normal; text-decoration:none;">  The fund's investment 
adviser, BNY Mellon Investment Adviser, Inc., has contractually agreed, until June 1, 2027, to waive 
receipt of a portion of its management fee in the amount of .03% of the value of the fund's average daily 
net assets.  On or after June 1, 2027, BNY Mellon Investment Adviser, Inc. may terminate this waiver 
agreement at any time.</xhtml:span></link:footnote>
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          xlink:to="fn11_"
          xlink:type="arc"/>
    </link:footnoteLink>
</xbrl>
