XML 85 R7.htm IDEA: XBRL DOCUMENT v3.25.0.1
Label Element Value
Capital | MUNICASH  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading Fund Overview Key Facts About MuniCash
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock
The investment objective of MuniCash (the “Fund”), a series of BlackRock Liquidity Funds (the “Trust”), is to seek as high a level of current income exempt from federal income tax as is consistent with liquidity and stability of principal.
Expense [Heading] rr_ExpenseHeading Fees and Expenses of the Fund
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock
This table describes the fees and expenses that you may pay if you buy, hold and sell Capital Shares of MuniCash. You may pay other fees, such as brokerage commissions and other fees to your financial professional or your selected securities dealer, broker, investment adviser, service provider or industry professional (including BlackRock Advisors, LLC (“BlackRock”) and its affiliates) (each, a “Financial Intermediary”), which are not reflected in the table and example below.
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination June 30, 2026
Expense Example [Heading] rr_ExpenseExampleHeading Example:
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock
This 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 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. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies of the Fund
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
Under normal circumstances, MuniCash invests: (i) at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in a broad range of short-term obligations issued by or on behalf of states, territories and possessions of the
United States, the District of Columbia, and their respective authorities, agencies, instrumentalities and political subdivisions and derivative securities, such as beneficial interests in municipal trust certificates and partnership trusts (“Municipal Obligations”), the interest on which, in the opinion of counsel to the issuer of the obligation, is exempt from regular federal income tax; or (ii) so that at least 80% of the income distributed by the Fund will be exempt from regular federal income tax. Municipal Obligations in which the Fund may invest will also not be subject to the federal alternative minimum tax. The Fund intends to invest solely in securities that are considered weekly liquid assets under Rule 2a-7 under the Investment Company Act of 1940, as amended (the “1940 Act”) (typically maturing in five business days or less). The Fund may invest in variable and floating rate instruments, and transact in securities on a when-issued, delayed delivery or forward commitment basis.
The securities purchased by the Fund are subject to the quality, diversification, and other requirements of Rule 2a-7 under the 1940 Act, and other rules of the Securities and Exchange Commission.
Risk [Heading] rr_RiskHeading Principal Risks of Investing in the Fund
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance Information
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock
There are currently no Capital Shares of MuniCash outstanding as of the date of this prospectus. As a result, the chart, the table and the seven-day yield shown below give you a picture of the performance for Institutional Shares of the Fund, which are not offered in this prospectus. The performance of the Fund’s Capital Shares would be substantially similar to Institutional Shares because Capital Shares and Institutional Shares are invested in the same portfolio of securities and performance would only differ to the extent that Capital Shares and Institutional Shares have different expenses. The actual returns and seven-day yields of Capital Shares would have been lower than those of the Institutional Shares because Capital Shares have higher expenses than the Institutional Shares.
The information shows you how MuniCash’s performance has varied year by year and provides some indication of the risks of investing in the Fund. As with all such investments, past performance is not an indication of future results. To the extent that dividends and distributions have been paid by the Fund, the performance information for the Fund in the chart and table assumes reinvestment of the dividends and distributions. The table includes all applicable fees. If BlackRock and its affiliates had not waived or reimbursed certain Fund expenses during these periods, the Fund’s returns would have been lower. The Fund is a money market fund managed pursuant to the requirements of Rule 2a‑7 under the 1940 Act. Prior to February 27, 2024, MuniCash did not have an investment policy that it intends to invest solely in securities that are considered weekly liquid assets under Rule 2a-7 under the 1940 Act. Fund performance shown prior to February 27, 2024 is based on the investment policies of MuniCash prior to the implementation of this change in the investment policy relating to maturity. Effective October 11, 2016, the Fund implemented additional amendments to Rule 2a‑7, including the adoption of a floating net asset value (“NAV”) per Fund share. Fund performance shown prior to October 11, 2016 is based on 1940 Act rules then in effect and is not an indication
of future returns. Updated information on the Fund’s performance can be obtained by visiting www.blackrock.com/cash or can be obtained by phone at (800) 441‑7450.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The information shows you how MuniCash’s performance has varied year by year and provides some indication of the risks of investing in the Fund.
Performance Availability Phone [Text] rr_PerformanceAvailabilityPhone (800) 441‑7450
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.blackrock.com/cash
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture As with all such investments, past performance is not an indication of future results.
Bar Chart [Heading] rr_BarChartHeading Institutional Shares ANNUAL TOTAL RETURNS MuniCash As of 12/31
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the ten-year period shown in the bar chart, the highest return for a quarter was 0.86% (quarter ended December 31, 2023) and the lowest return for a quarter was -0.01% (quarter ended March 31, 2022).
Bar Chart, Returns for Class Not Offered in Prospectus [Text] rr_BarChartReturnsForClassNotOfferedInProspectus There are currently no Capital Shares of MuniCash outstanding as of the date of this prospectus. As a result, the chart, the table and the seven-day yield shown below give you a picture of the performance for Institutional Shares of the Fund, which are not offered in this prospectus.
Performance Table Heading rr_PerformanceTableHeading For the periods ended 12/31/24 Average Annual Total Returns
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock
Current Yield: You may obtain the Fund’s current 7‑day yield by calling (800) 441‑7450 or by visiting the Fund’s website at www.blackrock.com/cash.
Money Market Seven Day Yield Phone rr_MoneyMarketSevenDayYieldPhone (800) 441‑7450
Capital | MUNICASH | Risk Lose Money [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock You could lose money by investing in the Fund.
Capital | MUNICASH | Risk Money Market Fund Price Fluctuates [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Because the share price of the Fund will fluctuate, when you sell your shares they may be worth more or less than what you originally paid for them.
Capital | MUNICASH | Risk Money Market Fund May Impose Fees or Suspend Sales [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock The Fund may impose a fee upon the sale of your shares. The Fund generally must impose a fee when net sales of Fund shares exceed certain levels.
Capital | MUNICASH | Risk Money Market Fund Sponsor May Not Provide Support [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock The Fund’s sponsor is not required to reimburse the Fund for losses, and you should not expect that the sponsor will provide financial support to the Fund at any time, including during periods of market stress.
Capital | MUNICASH | Risk Not Insured Depository Institution [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock An investment in the Fund is not a bank account and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Capital | MUNICASH | Credit Risks [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
◾  
Credit Risk — Credit risk refers to the possibility that the issuer of a debt security (i.e., the borrower) will be unable or unwilling to make timely payments of interest and principal when due or otherwise honor their obligations. Changes in an issuer’s credit rating or the market’s perception of an issuer’s creditworthiness may also adversely affect the value of the Fund’s investment in that issuer.
Capital | MUNICASH | Interest Rate Risks [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
◾  
Interest Rate Risk — Interest rate risk is the risk that the value of a debt security may fall when interest rates rise. In general, the market price of debt securities with longer maturities will go up or down more in response to changes in interest rates than the market price of shorter-term securities. Due to fluctuations in interest rates, the market value of such securities may vary during the period shareholders own shares of the Fund. Very low or negative interest rates may magnify interest rate risk. During periods of very low or negative interest rates, the Fund may be unable to maintain positive returns or pay dividends to Fund shareholders. The Fund may be subject to a greater risk of rising interest rates during a period of historically low interest rates. Changing interest rates may have unpredictable effects on markets, may result in heightened market volatility and may detract from the Fund’s ability to achieve its investment objective.
Capital | MUNICASH | Discretionary Liquidity Fee Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
◾  
Discretionary Liquidity Fee Risk — The Board, or its delegate, has discretion to impose a liquidity fee of up to 2% upon sale of your shares if such fee is determined to be in the best interests of the Fund. Accordingly, your redemptions may be subject to a liquidity fee when you sell your shares at certain times.
Capital | MUNICASH | Foreign Exposure Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
◾  
Foreign Exposure Risk — Securities issued or supported by foreign entities, including foreign banks and corporations, may involve additional risks and considerations. Extensive public information about the foreign issuer may not be available, and unfavorable political, economic or governmental developments in the foreign country involved could affect the payment of principal and interest.
Capital | MUNICASH | Income Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
◾  
Income Risk — Income risk is the risk that the Fund’s yield will vary as short-term securities in its portfolio mature and the proceeds are reinvested in securities with different interest rates.
Capital | MUNICASH | Mandatory Liquidity Fee Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
◾  
Mandatory Liquidity Fee Risk — The Board, or its delegate, must impose a mandatory liquidity fee upon the sale of your shares if the Fund’s net redemptions on any business day exceed 5% of the Fund’s net assets, unless the liquidity costs are de minimis. Accordingly, your redemptions may be subject to a liquidity fee when you sell your shares at certain times.
Capital | MUNICASH | Market Risk and Selection Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
◾  
Market Risk and Selection Risk — Market risk is the risk that one or more markets in which the Fund invests will go down in value, including the possibility that the markets will go down sharply and unpredictably. The value of a security or other asset may decline due to changes in general market conditions, economic trends or events that are not specifically related to the issuer of the security or other asset, or factors that affect a particular issuer or issuers, exchange, country, group of countries, region, market, industry, group of industries, sector or asset class. Local, regional or global events such as war, acts of terrorism, the spread of infectious illness or other public health issues like pandemics or epidemics, recessions, or other events could have a significant impact on the Fund and its investments. Selection risk is the risk that the securities selected by Fund management will underperform the markets, the relevant indices or the securities selected by other funds with similar investment objectives and investment strategies. This means you may lose money.
Capital | MUNICASH | Risk of Investing in the United States [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
◾  
Risk of Investing in the United States — Certain changes in the U.S. economy, such as when the U.S. economy weakens or when its financial markets decline, may have an adverse effect on the securities to which the Fund has exposure.
Capital | MUNICASH | Treasury Obligations Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
◾  
Treasury Obligations Risk — Direct obligations of the U.S. Treasury have historically involved little risk of loss of principal if held to maturity. However, due to fluctuations in interest rates, the market value of such securities may vary during the period shareholders own shares of the Fund. In addition, notwithstanding that U.S. Treasury obligations are backed by the
 
full faith and credit of the United States, circumstances could arise that could prevent the timely payment of interest or principal, such as reaching the legislative “debt ceiling.” Such non-payment could result in losses to the Fund and substantial negative consequences for the U.S. economy and the global financial system.
Capital | MUNICASH | U S Government Obligations Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
◾  
U.S. Government Obligations Risk — Certain securities in which the Fund may invest, including securities issued by certain U.S. Government agencies and U.S. Government sponsored enterprises, are not guaranteed by the U.S. Government or supported by the full faith and credit of the United States. In addition, circumstances could arise that could prevent the timely payment of interest or principal on U.S. Government obligations, such as reaching the legislative “debt ceiling.” Such non-payment could result in losses to the Fund and substantial negative consequences for the U.S. economy and the global financial system.
Capital | MUNICASH | Variable and Floating Rate Instrument Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
◾  
Variable and Floating Rate Instrument Risk — Variable and floating rate securities provide for periodic adjustment in the interest rate paid on the securities. Securities with floating or variable interest rates can be less sensitive to interest rate changes than securities with fixed interest rates, but may decline in value if their coupon rates do not reset as high, or as quickly, as comparable market interest rates, and generally carry lower yields than fixed securities of the same maturity. These securities will not generally increase in value if interest rates decline. A decline in interest rates may result in a reduction in income received from variable and floating rate securities held by the Fund and may adversely affect the value of the Fund’s shares. Certain of these securities may be subject to greater illiquidity risk than other fixed income securities, meaning the absence of an active market for these securities could make it difficult for the Fund to dispose of them at any given time. Floating rate securities generally are subject to legal or contractual restrictions on resale, may trade infrequently, and their value may be impaired when the Fund needs to liquidate such loans. Benchmark interest rates may not accurately track market interest rates. Although floating rate securities are less sensitive to interest rate risk than fixed-rate securities, they are subject to credit risk and default risk, which could impair their value.
Capital | MUNICASH | When Issued and Delayed Delivery Securities and Forward Commitments Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
◾  
When-Issued and Delayed Delivery Securities and Forward Commitments Risk — When-issued and delayed delivery securities and forward commitments involve the risk that the security the Fund buys will lose value prior to its delivery. There also is the risk that the security will not be issued or that the other party to the transaction will not meet its obligation. If this occurs, the Fund may lose both the investment opportunity for the assets it set aside to pay for the security and any gain in the security’s price.
Capital | MUNICASH | Municipal Securities Risks [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
◾  
Municipal Securities Risks — Municipal securities risks include the ability of the issuer to repay the obligation, the relative lack of information about certain issuers of municipal securities, and the possibility of future legislative changes which could affect the market for and value of municipal securities. Budgetary constraints of local, state, and federal governments upon which the issuers may be relying for funding may also impact municipal securities. These risks include:
General Obligation Bonds Risks — Timely payments depend on the issuer’s credit quality, ability to raise tax revenues and ability to maintain an adequate tax base.
Revenue Bonds Risks — These payments depend on the money earned by the particular facility or class of facilities, or the amount of revenues derived from another source.
Private Activity Bonds Risks — Municipalities and other public authorities issue private activity bonds to finance development of industrial facilities for use by a private enterprise. The private enterprise pays the principal and interest on the bond, and the issuer does not pledge its full faith, credit and taxing power for repayment.
Moral Obligation Bonds Risks — Moral obligation bonds are generally issued by special purpose public authorities of a state or municipality. If the issuer is unable to meet its obligations, repayment of these bonds becomes a moral commitment, but not a legal obligation, of the state or municipality.
Municipal Notes Risks — Municipal notes are shorter term municipal debt obligations. If there is a shortfall in the anticipated proceeds, the notes may not be fully repaid and the Fund may lose money.
Municipal Lease Obligations Risks — In a municipal lease obligation, the issuer agrees to make payments when due on the lease obligation. Although the issuer does not pledge its unlimited taxing power for payment of the lease obligation, the lease obligation is secured by the leased property.
Tax‑Exempt Status Risk — The Fund and its investment manager will rely on the opinion of issuers’ bond counsel and, in the case of derivative securities, sponsors’ counsel, on the tax‑exempt status of interest on municipal bonds and payments under derivative securities. Neither the Fund nor its investment manager will independently review the bases for those tax opinions, which may ultimately be determined to be incorrect and subject the Fund and its shareholders to substantial tax liabilities.
Capital | MUNICASH | Municipal Securities Concentration Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
◾  
Municipal Securities Concentration Risk — From time to time the Fund may invest a substantial amount of its assets in municipal securities whose interest is paid solely from revenues of similar projects. If the Fund concentrates its investments in this manner, it assumes the legal and economic risks relating to such projects and this may have a significant impact on the Fund’s investment performance.
Capital | MUNICASH | Taxability Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
◾  
Taxability Risk — Future laws, regulations, rulings or court decisions may cause interest on municipal securities to be subject, directly or indirectly, to U.S. federal income taxation or currently exempt interest on state municipal securities to be subject to state or local income taxation, or the value of state municipal securities that are currently exempt to be subject to state or local intangible personal property tax, or may otherwise prevent the Fund from realizing the full current benefit of the tax-exempt status of such securities. Any such change could also affect the market price of such securities, and thus the value of an investment in the Fund.
Legal Opinion Risk — The Fund will rely on legal opinions of counsel to issuers of municipal securities as to the tax-exempt status of investments and will not do its own analysis. The status of a municipal security as tax-exempt may be affected by events that occur after the municipal security is issued.
Capital | MUNICASH | Capital Shares  
Risk/Return: rr_RiskReturnAbstract  
Management Fee rr_ManagementFeesOverAssets 0.29% [1]
Distribution (12b‑1) Fees rr_DistributionAndService12b1FeesOverAssets none [1]
Shareholder Servicing Fees rr_Component1OtherExpensesOverAssets 0.05% [1]
Miscellaneous/Other Expenses rr_Component2OtherExpensesOverAssets 0.01% [1]
Interest Expense rr_Component3OtherExpensesOverAssets 0.01% [1]
Other Expenses rr_OtherExpensesOverAssets 0.07% [1]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.36% [1]
Fee Waivers and/or Expense Reimbursements rr_FeeWaiverOrReimbursementOverAssets (0.10%) [1],[2]
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements rr_NetExpensesOverAssets 0.26% [1],[2]
1 Year rr_ExpenseExampleYear01 $ 27
3 Years rr_ExpenseExampleYear03 106
5 Years rr_ExpenseExampleYear05 192
10 Years rr_ExpenseExampleYear10 $ 446
Capital | MUNICASH | Institutional Shares  
Risk/Return: rr_RiskReturnAbstract  
2015 rr_AnnualReturn2015 0.02%
2016 rr_AnnualReturn2016 0.38%
2017 rr_AnnualReturn2017 0.68%
2018 rr_AnnualReturn2018 1.25%
2019 rr_AnnualReturn2019 1.29%
2020 rr_AnnualReturn2020 0.40%
2021 rr_AnnualReturn2021 none
2022 rr_AnnualReturn2022 0.92%
2023 rr_AnnualReturn2023 3.06%
2024 rr_AnnualReturn2024 3.06%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest return
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Dec. 31, 2023
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 0.86%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest return
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Mar. 31, 2022
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (0.01%)
1 Year rr_AverageAnnualReturnYear01 3.06%
5 Years rr_AverageAnnualReturnYear05 1.48%
10 Years rr_AverageAnnualReturnYear10 1.10%
7-Day Yield As of December 31, 2024 rr_MoneyMarketSevenDayYield 3.38%
[1]
Fund currently active, but no assets in share class as of the fiscal year ended October 31, 2024.
[2]
As described in the “Management of the Funds” section of the Fund’s prospectus beginning on page 56, BlackRock, the Fund’s investment manager, has contractually agreed to waive fees and/or reimburse ordinary operating expenses in order to keep combined Management Fees and Miscellaneous/Other Expenses (excluding Dividend Expense, Interest Expense, Acquired Fund Fees and Expenses and certain other Fund expenses) from exceeding 0.20% of average daily net assets through June 30, 2026. The agreement may be terminated upon 90 days’ notice by a majority of the non‑interested trustees of the Trust or by a vote of a majority of the outstanding voting securities of the Fund.