Investment Strategy |
Feb. 28, 2026 |
|---|---|
| JPMorgan Securities Lending Money Market Fund | |
| Prospectus [Line Items] | |
| Strategy [Heading] | <span style="color:#000000;font-family:Arial Narrow;font-size:11pt;font-weight:bold;">The Fund’s Main Investment Strategy</span> |
| Strategy Narrative [Text Block] | Under normal conditions, the Fund invests its assets exclusively in: ●debt securities issued or guaranteed by the U.S. government, or by U.S. government agencies or instrumentalities or Government-Sponsored Enterprises (“GSEs”), and ●repurchase agreements fully collateralized by U.S. Treasury and U.S. government securities.The Fund is a money market fund managed in the following manner: ●The Fund seeks to maintain a net asset value (“NAV”) of $1.00 per share. ●The dollar-weighted average maturity of the Fund will be 60 days or less and the dollar-weighted average life to maturity will be 120 days or less. ●The Fund will only buy securities that have remaining maturities of 397 days or less or securities otherwise permitted to be purchased because of maturity shortening provisions under applicable regulation. ●The Fund invests only in U.S. dollar-denominated securities. ●The Fund seeks to invest in securities that present minimal credit risk.The Fund may invest significantly in securities with floating or variable rates of interest. Their yields will vary as interest rates change. The Fund will at times hold some of its assets in cash. The Fund intends to qualify as a “government money market fund,” as such term is defined in or interpreted under Rule 2a-7 under the Investment Company Act of 1940, as amended (“Investment Company Act”). “Government money market funds” are required to invest at least 99.5% of their assets in (i) cash, (ii) securities issued or guaranteed by the United States or certain U.S. government agencies or instrumentalities and/or (iii) repurchase agreements that are collateralized fully, and are exempt from requirements that permit money market funds to impose a liquidity fee. While the J.P. Morgan Funds’ Board of Trustees (the “Board”) may elect to subject the Fund to liquidity fee requirements in the future, the Board has not elected to do so at this time. A government money market fund may also include investments in other government money market funds as an eligible investment for purposes of the 99.5% requirement above. The Fund may enter into lending agreements under which the Fund would lend money for temporary purposes directly to another J.P. Morgan Fund through a credit facility, subject to meeting the conditions of an SEC exemptive order granted to the Fund permitting such interfund lending. The Fund may trade securities on a when-issued, delayed settlement or forward commitment basis. The Fund’s adviser seeks to develop an appropriate portfolio by considering the differences in yields among securities of different maturities, market sectors and issuers. |
| Summary of Definition of Rule 35d-1 Term in Fund Name [Text Block] | The Fund is a money market fund managed in the following manner: ●The Fund seeks to maintain a net asset value (“NAV”) of $1.00 per share. ●The dollar-weighted average maturity of the Fund will be 60 days or less and the dollar-weighted average life to maturity will be 120 days or less. ●The Fund will only buy securities that have remaining maturities of 397 days or less or securities otherwise permitted to be purchased because of maturity shortening provisions under applicable regulation. ●The Fund invests only in U.S. dollar-denominated securities. ●The Fund seeks to invest in securities that present minimal credit risk. |
| Summary of Selection Criteria for Rule 35d-1 Term in Fund Name [Text Block] | Under normal conditions, the Fund invests its assets exclusively in: ●debt securities issued or guaranteed by the U.S. government, or by U.S. government agencies or instrumentalities or Government-Sponsored Enterprises (“GSEs”), and ●repurchase agreements fully collateralized by U.S. Treasury and U.S. government securities. |
| Agency Shares [Member] | JPMorgan Institutional Tax Free Money Market Fund | |
| Prospectus [Line Items] | |
| Strategy [Heading] | <span style="color:#000000;font-family:Arial Narrow;font-size:11pt;font-weight:bold;">The Fund’s Main Investment Strategy</span> |
| Strategy Narrative [Text Block] | Under normal conditions, the Fund invests primarily in municipal obligations, the interest on which is excluded from federal income taxes.As a fundamental policy, under normal circumstances, the Fund will invest at least 80% of the value of its Assets in municipal obligations. For purposes of this policy, “Assets” means net assets, plus the amount of borrowings for investment purposes. Municipal obligations include 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, political subdivisions and other groups with authority to act for the municipalities and instruments that provide economic exposure to such obligations, including beneficial interests in municipal trust certificates and partnership trusts (“municipal obligations”). For purposes of the Fund’s 80% policy, the Fund may invest in municipal obligations by (1) purchasing instruments evidencing direct ownership of interest payments or principal payments, or both, on municipal obligations, such as tender option bonds, or (2) purchasing participation interests in all or part of specific holdings of municipal obligations. The Fund generally invests in short-term money market instruments such as private activity and industrial development bonds, tax anticipation notes, variable rate demand notes and participations in pools of municipal obligations. These investments may include privately placed securities. For purposes of the 80% policy above, the Fund will only invest in municipal obligations if the issuer receives assurances from legal counsel that the interest payable on the securities is exempt from federal income tax.As a non-fundamental policy, the Fund will ordinarily invest, under normal circumstances, 100% if its total assets in weekly liquid assets (as defined under Rule 2a-7 of the Investment Company Act of 1940 (the "Investment Company Act")). The maturity restrictions applicable to weekly liquid assets may reduce the Fund's yield and performance. Up to 20% of the Fund’s Assets may be invested in securities subject to federal income tax or the federal alternative minimum tax. The Fund is a money market fund managed in the following manner: ●The Fund calculates its net asset value to four decimals (e.g., $1.0000) using market-based pricing and operates with a floating net asset value. ●The dollar-weighted average maturity of the Fund will be 60 days or less and the dollar-weighted average life to maturity will be 120 days or less. ●The Fund will only buy securities that have remaining maturities of 397 days or less or securities otherwise permitted to be purchased because of maturity shortening provisions under applicable regulation. ●The Fund invests only in U.S. dollar-denominated securities. ●The Fund seeks to invest in securities that present minimal credit risk.The Fund may invest significantly in securities with floating or variable rates of interest. Their yields will vary as interest rates change. The Fund will at times hold some of its assets in cash. The Fund’s adviser seeks to develop an appropriate portfolio by considering the differences in yields among securities of different maturities, market sectors and issuers. Liquidity Fees The Fund’s policies and procedures require the Fund to impose a mandatory liquidity fee if the Fund experiences total daily net redemptions (based on flow information available within a reasonable period after the last computation of the Fund’s net asset value on that day) exceeding 5% of net assets, unless the amount of the mandatory liquidity fee would be de minimis. The size of the mandatory liquidity fee to be charged will be based on a good faith estimate, supported by data, of the costs the Fund would incur if it sold a pro rata amount of each security in its portfolio to satisfy the amount of the net redemptions. If these costs cannot be determined in good faith, a 1% default fee will be applied. If the amount of the mandatory liquidity fee would be de minimis (i.e., less than 0.01% of the value of the shares redeemed), the Fund is not required to charge a mandatory liquidity fee. In addition, the Fund’s policies and procedures permit the Fund to impose a discretionary liquidity fee on redemptions of up to 2% of the value of the shares redeemed if the adviser, as the delegate of the Board, determines it is in the best interests of the Fund. |
| Summary of Definition of Rule 35d-1 Term in Fund Name [Text Block] | The Fund is a money market fund managed in the following manner: ●The Fund calculates its net asset value to four decimals (e.g., $1.0000) using market-based pricing and operates with a floating net asset value. ●The dollar-weighted average maturity of the Fund will be 60 days or less and the dollar-weighted average life to maturity will be 120 days or less. ●The Fund will only buy securities that have remaining maturities of 397 days or less or securities otherwise permitted to be purchased because of maturity shortening provisions under applicable regulation. ●The Fund invests only in U.S. dollar-denominated securities. ●The Fund seeks to invest in securities that present minimal credit risk. |
| Summary of Selection Criteria for Rule 35d-1 Term in Fund Name [Text Block] | Under normal conditions, the Fund invests primarily in municipal obligations, the interest on which is excluded from federal income taxes. |
| Rule 35d-1 Eighty Percent Investment Policy [Text Block] | As a fundamental policy, under normal circumstances, the Fund will invest at least 80% of the value of its Assets in municipal obligations. For purposes of this policy, “Assets” means net assets, plus the amount of borrowings for investment purposes. Municipal obligations include 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, political subdivisions and other groups with authority to act for the municipalities and instruments that provide economic exposure to such obligations, including beneficial interests in municipal trust certificates and partnership trusts (“municipal obligations”). For purposes of the Fund’s 80% policy, the Fund may invest in municipal obligations by (1) purchasing instruments evidencing direct ownership of interest payments or principal payments, or both, on municipal obligations, such as tender option bonds, or (2) purchasing participation interests in all or part of specific holdings of municipal obligations. The Fund generally invests in short-term money market instruments such as private activity and industrial development bonds, tax anticipation notes, variable rate demand notes and participations in pools of municipal obligations. These investments may include privately placed securities. For purposes of the 80% policy above, the Fund will only invest in municipal obligations if the issuer receives assurances from legal counsel that the interest payable on the securities is exempt from federal income tax. |
| Capital Shares [Member] | JPMorgan Institutional Tax Free Money Market Fund | |
| Prospectus [Line Items] | |
| Strategy [Heading] | <span style="color:#000000;font-family:Arial Narrow;font-size:11pt;font-weight:bold;">The Fund’s Main Investment Strategy</span> |
| Strategy Narrative [Text Block] | Under normal conditions, the Fund invests primarily in municipal obligations, the interest on which is excluded from federal income taxes.As a fundamental policy, under normal circumstances, the Fund will invest at least 80% of the value of its Assets in municipal obligations. For purposes of this policy, “Assets” means net assets, plus the amount of borrowings for investment purposes. Municipal obligations include 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, political subdivisions and other groups with authority to act for the municipalities and instruments that provide economic exposure to such obligations, including beneficial interests in municipal trust certificates and partnership trusts (“municipal obligations”). For purposes of the Fund’s 80% policy, the Fund may invest in municipal obligations by (1) purchasing instruments evidencing direct ownership of interest payments or principal payments, or both, on municipal obligations, such as tender option bonds, or (2) purchasing participation interests in all or part of specific holdings of municipal obligations. The Fund generally invests in short-term money market instruments such as private activity and industrial development bonds, tax anticipation notes, variable rate demand notes and participations in pools of municipal obligations. These investments may include privately placed securities. For purposes of the 80% policy above, the Fund will only invest in municipal obligations if the issuer receives assurances from legal counsel that the interest payable on the securities is exempt from federal income tax.As a non-fundamental policy, the Fund will ordinarily invest, under normal circumstances, 100% if its total assets in weekly liquid assets (as defined under Rule 2a-7 of the Investment Company Act of 1940 (the "Investment Company Act")). The maturity restrictions applicable to weekly liquid assets may reduce the Fund's yield and performance. Up to 20% of the Fund’s Assets may be invested in securities subject to federal income tax or the federal alternative minimum tax. The Fund is a money market fund managed in the following manner: ●The Fund calculates its net asset value to four decimals (e.g., $1.0000) using market-based pricing and operates with a floating net asset value. ●The dollar-weighted average maturity of the Fund will be 60 days or less and the dollar-weighted average life to maturity will be 120 days or less. ●The Fund will only buy securities that have remaining maturities of 397 days or less or securities otherwise permitted to be purchased because of maturity shortening provisions under applicable regulation. ●The Fund invests only in U.S. dollar-denominated securities. ●The Fund seeks to invest in securities that present minimal credit risk.The Fund may invest significantly in securities with floating or variable rates of interest. Their yields will vary as interest rates change. The Fund will at times hold some of its assets in cash. The Fund’s adviser seeks to develop an appropriate portfolio by considering the differences in yields among securities of different maturities, market sectors and issuers. Liquidity Fees The Fund’s policies and procedures require the Fund to impose a mandatory liquidity fee if the Fund experiences total daily net redemptions (based on flow information available within a reasonable period after the last computation of the Fund’s net asset value on that day) exceeding 5% of net assets, unless the amount of the mandatory liquidity fee would be de minimis. The size of the mandatory liquidity fee to be charged will be based on a good faith estimate, supported by data, of the costs the Fund would incur if it sold a pro rata amount of each security in its portfolio to satisfy the amount of the net redemptions. If these costs cannot be determined in good faith, a 1% default fee will be applied. If the amount of the mandatory liquidity fee would be de minimis (i.e., less than 0.01% of the value of the shares redeemed), the Fund is not required to charge a mandatory liquidity fee. In addition, the Fund’s policies and procedures permit the Fund to impose a discretionary liquidity fee on redemptions of up to 2% of the value of the shares redeemed if the adviser, as the delegate of the Board, determines it is in the best interests of the Fund. |
| Summary of Definition of Rule 35d-1 Term in Fund Name [Text Block] | The Fund is a money market fund managed in the following manner: ●The Fund calculates its net asset value to four decimals (e.g., $1.0000) using market-based pricing and operates with a floating net asset value. ●The dollar-weighted average maturity of the Fund will be 60 days or less and the dollar-weighted average life to maturity will be 120 days or less. ●The Fund will only buy securities that have remaining maturities of 397 days or less or securities otherwise permitted to be purchased because of maturity shortening provisions under applicable regulation. ●The Fund invests only in U.S. dollar-denominated securities. ●The Fund seeks to invest in securities that present minimal credit risk. |
| Summary of Selection Criteria for Rule 35d-1 Term in Fund Name [Text Block] | Under normal conditions, the Fund invests primarily in municipal obligations, the interest on which is excluded from federal income taxes. |
| Rule 35d-1 Eighty Percent Investment Policy [Text Block] | As a fundamental policy, under normal circumstances, the Fund will invest at least 80% of the value of its Assets in municipal obligations. For purposes of this policy, “Assets” means net assets, plus the amount of borrowings for investment purposes. Municipal obligations include 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, political subdivisions and other groups with authority to act for the municipalities and instruments that provide economic exposure to such obligations, including beneficial interests in municipal trust certificates and partnership trusts (“municipal obligations”). For purposes of the Fund’s 80% policy, the Fund may invest in municipal obligations by (1) purchasing instruments evidencing direct ownership of interest payments or principal payments, or both, on municipal obligations, such as tender option bonds, or (2) purchasing participation interests in all or part of specific holdings of municipal obligations. The Fund generally invests in short-term money market instruments such as private activity and industrial development bonds, tax anticipation notes, variable rate demand notes and participations in pools of municipal obligations. These investments may include privately placed securities. For purposes of the 80% policy above, the Fund will only invest in municipal obligations if the issuer receives assurances from legal counsel that the interest payable on the securities is exempt from federal income tax. |
| IM Shares [Member] | JPMorgan Institutional Tax Free Money Market Fund | |
| Prospectus [Line Items] | |
| Strategy [Heading] | <span style="color:#000000;font-family:Arial Narrow;font-size:11pt;font-weight:bold;">The Fund’s Main Investment Strategy</span> |
| Strategy Narrative [Text Block] | Under normal conditions, the Fund invests primarily in municipal obligations, the interest on which is excluded from federal income taxes.As a fundamental policy, under normal circumstances, the Fund will invest at least 80% of the value of its Assets in municipal obligations. For purposes of this policy, “Assets” means net assets, plus the amount of borrowings for investment purposes. Municipal obligations include 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, political subdivisions and other groups with authority to act for the municipalities and instruments that provide economic exposure to such obligations, including beneficial interests in municipal trust certificates and partnership trusts (“municipal obligations”). For purposes of the Fund’s 80% policy, the Fund may invest in municipal obligations by (1) purchasing instruments evidencing direct ownership of interest payments or principal payments, or both, on municipal obligations, such as tender option bonds, or (2) purchasing participation interests in all or part of specific holdings of municipal obligations. The Fund generally invests in short-term money market instruments such as private activity and industrial development bonds, tax anticipation notes, variable rate demand notes and participations in pools of municipal obligations. These investments may include privately placed securities. For purposes of the 80% policy above, the Fund will only invest in municipal obligations if the issuer receives assurances from legal counsel that the interest payable on the securities is exempt from federal income tax.As a non-fundamental policy, the Fund will ordinarily invest, under normal circumstances, 100% if its total assets in weekly liquid assets (as defined under Rule 2a-7 of the Investment Company Act of 1940 (the "Investment Company Act")). The maturity restrictions applicable to weekly liquid assets may reduce the Fund's yield and performance. Up to 20% of the Fund’s Assets may be invested in securities subject to federal income tax or the federal alternative minimum tax. The Fund is a money market fund managed in the following manner: ●The Fund calculates its net asset value to four decimals (e.g., $1.0000) using market-based pricing and operates with a floating net asset value. ●The dollar-weighted average maturity of the Fund will be 60 days or less and the dollar-weighted average life to maturity will be 120 days or less. ●The Fund will only buy securities that have remaining maturities of 397 days or less or securities otherwise permitted to be purchased because of maturity shortening provisions under applicable regulation. ●The Fund invests only in U.S. dollar-denominated securities. ●The Fund seeks to invest in securities that present minimal credit risk.The Fund may invest significantly in securities with floating or variable rates of interest. Their yields will vary as interest rates change. The Fund will at times hold some of its assets in cash. The Fund’s adviser seeks to develop an appropriate portfolio by considering the differences in yields among securities of different maturities, market sectors and issuers. Liquidity Fees The Fund’s policies and procedures require the Fund to impose a mandatory liquidity fee if the Fund experiences total daily net redemptions (based on flow information available within a reasonable period after the last computation of the Fund’s net asset value on that day) exceeding 5% of net assets, unless the amount of the mandatory liquidity fee would be de minimis. The size of the mandatory liquidity fee to be charged will be based on a good faith estimate, supported by data, of the costs the Fund would incur if it sold a pro rata amount of each security in its portfolio to satisfy the amount of the net redemptions. If these costs cannot be determined in good faith, a 1% default fee will be applied. If the amount of the mandatory liquidity fee would be de minimis (i.e., less than 0.01% of the value of the shares redeemed), the Fund is not required to charge a mandatory liquidity fee. In addition, the Fund’s policies and procedures permit the Fund to impose a discretionary liquidity fee on redemptions of up to 2% of the value of the shares redeemed if the adviser, as the delegate of the Board, determines it is in the best interests of the Fund. |
| Summary of Definition of Rule 35d-1 Term in Fund Name [Text Block] | The Fund is a money market fund managed in the following manner: ●The Fund calculates its net asset value to four decimals (e.g., $1.0000) using market-based pricing and operates with a floating net asset value. ●The dollar-weighted average maturity of the Fund will be 60 days or less and the dollar-weighted average life to maturity will be 120 days or less. ●The Fund will only buy securities that have remaining maturities of 397 days or less or securities otherwise permitted to be purchased because of maturity shortening provisions under applicable regulation. ●The Fund invests only in U.S. dollar-denominated securities. ●The Fund seeks to invest in securities that present minimal credit risk. |
| Summary of Selection Criteria for Rule 35d-1 Term in Fund Name [Text Block] | Under normal conditions, the Fund invests primarily in municipal obligations, the interest on which is excluded from federal income taxes. |
| Rule 35d-1 Eighty Percent Investment Policy [Text Block] | As a fundamental policy, under normal circumstances, the Fund will invest at least 80% of the value of its Assets in municipal obligations. For purposes of this policy, “Assets” means net assets, plus the amount of borrowings for investment purposes. Municipal obligations include 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, political subdivisions and other groups with authority to act for the municipalities and instruments that provide economic exposure to such obligations, including beneficial interests in municipal trust certificates and partnership trusts (“municipal obligations”). For purposes of the Fund’s 80% policy, the Fund may invest in municipal obligations by (1) purchasing instruments evidencing direct ownership of interest payments or principal payments, or both, on municipal obligations, such as tender option bonds, or (2) purchasing participation interests in all or part of specific holdings of municipal obligations. The Fund generally invests in short-term money market instruments such as private activity and industrial development bonds, tax anticipation notes, variable rate demand notes and participations in pools of municipal obligations. These investments may include privately placed securities. For purposes of the 80% policy above, the Fund will only invest in municipal obligations if the issuer receives assurances from legal counsel that the interest payable on the securities is exempt from federal income tax. |
| Institutional Shares [Member] | JPMorgan Institutional Tax Free Money Market Fund | |
| Prospectus [Line Items] | |
| Strategy [Heading] | <span style="color:#000000;font-family:Arial Narrow;font-size:11pt;font-weight:bold;">The Fund’s Main Investment Strategy</span> |
| Strategy Narrative [Text Block] | Under normal conditions, the Fund invests primarily in municipal obligations, the interest on which is excluded from federal income taxes.As a fundamental policy, under normal circumstances, the Fund will invest at least 80% of the value of its Assets in municipal obligations. For purposes of this policy, “Assets” means net assets, plus the amount of borrowings for investment purposes. Municipal obligations include 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, political subdivisions and other groups with authority to act for the municipalities and instruments that provide economic exposure to such obligations, including beneficial interests in municipal trust certificates and partnership trusts (“municipal obligations”). For purposes of the Fund’s 80% policy, the Fund may invest in municipal obligations by (1) purchasing instruments evidencing direct ownership of interest payments or principal payments, or both, on municipal obligations, such as tender option bonds, or (2) purchasing participation interests in all or part of specific holdings of municipal obligations. The Fund generally invests in short-term money market instruments such as private activity and industrial development bonds, tax anticipation notes, variable rate demand notes and participations in pools of municipal obligations. These investments may include privately placed securities. For purposes of the 80% policy above, the Fund will only invest in municipal obligations if the issuer receives assurances from legal counsel that the interest payable on the securities is exempt from federal income tax.As a non-fundamental policy, the Fund will ordinarily invest, under normal circumstances, 100% if its total assets in weekly liquid assets (as defined under Rule 2a-7 of the Investment Company Act of 1940 (the "Investment Company Act")). The maturity restrictions applicable to weekly liquid assets may reduce the Fund's yield and performance. Up to 20% of the Fund’s Assets may be invested in securities subject to federal income tax or the federal alternative minimum tax. The Fund is a money market fund managed in the following manner: ●The Fund calculates its net asset value to four decimals (e.g., $1.0000) using market-based pricing and operates with a floating net asset value. ●The dollar-weighted average maturity of the Fund will be 60 days or less and the dollar-weighted average life to maturity will be 120 days or less. ●The Fund will only buy securities that have remaining maturities of 397 days or less or securities otherwise permitted to be purchased because of maturity shortening provisions under applicable regulation. ●The Fund invests only in U.S. dollar-denominated securities. ●The Fund seeks to invest in securities that present minimal credit risk.The Fund may invest significantly in securities with floating or variable rates of interest. Their yields will vary as interest rates change. The Fund will at times hold some of its assets in cash. The Fund’s adviser seeks to develop an appropriate portfolio by considering the differences in yields among securities of different maturities, market sectors and issuers. Liquidity Fees The Fund’s policies and procedures require the Fund to impose a mandatory liquidity fee if the Fund experiences total daily net redemptions (based on flow information available within a reasonable period after the last computation of the Fund’s net asset value on that day) exceeding 5% of net assets, unless the amount of the mandatory liquidity fee would be de minimis. The size of the mandatory liquidity fee to be charged will be based on a good faith estimate, supported by data, of the costs the Fund would incur if it sold a pro rata amount of each security in its portfolio to satisfy the amount of the net redemptions. If these costs cannot be determined in good faith, a 1% default fee will be applied. If the amount of the mandatory liquidity fee would be de minimis (i.e., less than 0.01% of the value of the shares redeemed), the Fund is not required to charge a mandatory liquidity fee. In addition, the Fund’s policies and procedures permit the Fund to impose a discretionary liquidity fee on redemptions of up to 2% of the value of the shares redeemed if the adviser, as the delegate of the Board, determines it is in the best interests of the Fund. |
| Summary of Definition of Rule 35d-1 Term in Fund Name [Text Block] | The Fund is a money market fund managed in the following manner: ●The Fund calculates its net asset value to four decimals (e.g., $1.0000) using market-based pricing and operates with a floating net asset value. ●The dollar-weighted average maturity of the Fund will be 60 days or less and the dollar-weighted average life to maturity will be 120 days or less. ●The Fund will only buy securities that have remaining maturities of 397 days or less or securities otherwise permitted to be purchased because of maturity shortening provisions under applicable regulation. ●The Fund invests only in U.S. dollar-denominated securities. ●The Fund seeks to invest in securities that present minimal credit risk. |
| Summary of Selection Criteria for Rule 35d-1 Term in Fund Name [Text Block] | Under normal conditions, the Fund invests primarily in municipal obligations, the interest on which is excluded from federal income taxes. |
| Rule 35d-1 Eighty Percent Investment Policy [Text Block] | As a fundamental policy, under normal circumstances, the Fund will invest at least 80% of the value of its Assets in municipal obligations. For purposes of this policy, “Assets” means net assets, plus the amount of borrowings for investment purposes. Municipal obligations include 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, political subdivisions and other groups with authority to act for the municipalities and instruments that provide economic exposure to such obligations, including beneficial interests in municipal trust certificates and partnership trusts (“municipal obligations”). For purposes of the Fund’s 80% policy, the Fund may invest in municipal obligations by (1) purchasing instruments evidencing direct ownership of interest payments or principal payments, or both, on municipal obligations, such as tender option bonds, or (2) purchasing participation interests in all or part of specific holdings of municipal obligations. The Fund generally invests in short-term money market instruments such as private activity and industrial development bonds, tax anticipation notes, variable rate demand notes and participations in pools of municipal obligations. These investments may include privately placed securities. For purposes of the 80% policy above, the Fund will only invest in municipal obligations if the issuer receives assurances from legal counsel that the interest payable on the securities is exempt from federal income tax. |
| A I Shares [Member] | JPMorgan Ultra-Short Municipal Fund | |
| Prospectus [Line Items] | |
| Strategy [Heading] | <span style="color:#000000;font-family:Arial Narrow;font-size:11pt;font-weight:bold;">What are the Fund’s main investment strategies?</span> |
| Strategy Narrative [Text Block] | Under normal circumstances, the Fund invests at least 80% of its Assets in municipal securities, the income from which is exempt from federal income tax. This is a fundamental policy. For purposes of this policy, “Assets” means net assets, plus the amount of borrowings for investment purposes. Up to 25% of the Fund's Assets may be invested in municipal securities, the interest on which may be subject to the federal alternative minimum tax for individuals. The Fund invests in a portfolio of municipal securities with an average weighted maturity of two years or less. Average weighted maturity is the average of all the current maturities (that is, the term of the securities) of the individual securities in the Fund calculated so as to count most heavily those securities with the highest dollar value. Average weighted maturity is important to investors as an indication of the Fund’s sensitivity to changes in interest rates. Usually, the longer the average weighted maturity, the more fluctuation in share price you can expect.Municipal securities are securities issued by or on behalf of states, territories and possessions of the United States, including the District of Columbia, and their respective authorities, political subdivisions, agencies and instrumentalities and other groups with the authority to act for the municipalities, the interest on which is exempt from federal income tax. The securities are issued to raise funds for various public and private purposes. Municipal securities may include, but are not limited to, variable rate demand obligations, short-term municipal notes, municipal bonds, tax exempt commercial paper, private activity and industrial development bonds, tax anticipation notes, and participations in pools of municipal securities. Municipal securities also include instruments evidencing direct ownership of interest payments or principal payments, or both, on municipal securities, such as tender option bonds and participation interests in all or part of specific holdings of municipal obligations, provided that the applicable issuer receives assurances from legal counsel that the interest payable on the securities is exempt from federal income tax. Additionally, municipal securities include all other instruments that directly or indirectly provide economic exposure to income which is derived from municipalities (such as municipal leases). The securities in which the Fund invests may have fixed rates of return or floating or variable rates. Up to 100% of the Fund’s assets may be invested in short-term municipal instruments such as variable rate demand notes, short-term municipal notes and tax-exempt commercial paper. Their yields will vary as interest rates change. The Fund also invests in municipal mortgage-backed and asset-backed securities, as well as auction rate securities and restricted securities. The Fund may invest a significant portion or all of its assets in municipal mortgage-backed securities at the adviser’s discretion. The Fund may invest more than 25% of its total assets in municipal housing authority obligations. As part of its investments in municipal securities, the Fund invests primarily in investment grade securities or the unrated equivalent. The "unrated equivalent" refers to securities that are unrated but deemed by the adviser to be of comparable quality. Investment grade securities carry a minimum rating of Baa3, BBB–, or BBB– by Moody’s Investors Service Inc. (Moody’s), S&P Global Ratings (S&P), or Fitch Ratings (Fitch), respectively, or are unrated but deemed by the adviser to be of comparable quality. Up to 10% of the Fund’s total assets may be invested in securities rated below investment grade (junk bonds). Junk bonds also include unrated securities that the adviser believes to be of comparable quality to debt securities that are rated below investment grade. Junk bonds are also called “high yield bonds” and “non-investment grade bonds.” These securities generally are rated in the fifth or lower rating categories (for example, BB+ or lower by S&P and Ba1 or lower by Moody’s). These securities generally offer a higher yield than investment grade securities, but involve a high degree of risk. A security’s quality is determined at the time of purchase and securities that are rated investment grade or the unrated equivalent may be downgraded or decline in credit quality such that subsequently they would be deemed to be below investment grade. The Fund may also invest in zero-coupon securities. Up to 20% of the Fund’s net assets may be invested in securities subject to federal income tax. The Fund is not a money market fund and is not subject to the special regulatory requirements (including maturity and credit quality constraints) designed to enable money market funds to maintain a stable share price. Investment Process: The adviser buys and sells securities and investments for the Fund based on its view of individual securities and market sectors. The adviser looks for individual fixed income investments that it believes will perform well over market cycles. The adviser is value oriented and makes decisions to purchase and sell individual securities and instruments after performing a risk/reward analysis that includes an evaluation of interest rate risk, credit risk, duration, liquidity and the legal and technical structure of the transaction. As part of its investment process, the adviser seeks to assess the impact of environmental, social and governance (ESG) factors on certain issuers in the universe in which the Fund may invest. The adviser’s assessment is based on an analysis of key opportunities and risks across industries to seek to identify financially material issues with respect to the Fund’s investments in municipal issues and ascertain key issues that merit engagement with municipal issuers. These assessments may not be conclusive and securities of issuers that may be negatively impacted by such factors may be purchased and retained by the Fund while the Fund may divest or not invest in securities of issuers that may be positively impacted by such factors. |
| Summary of Definition of Rule 35d-1 Term in Fund Name [Text Block] | Under normal circumstances, the Fund invests at least 80% of its Assets in municipal securities, the income from which is exempt from federal income tax. This is a fundamental policy. For purposes of this policy, “Assets” means net assets, plus the amount of borrowings for investment purposes. Up to 25% of the Fund's Assets may be invested in municipal securities, the interest on which may be subject to the federal alternative minimum tax for individuals. The Fund invests in a portfolio of municipal securities with an average weighted maturity of two years or less. Average weighted maturity is the average of all the current maturities (that is, the term of the securities) of the individual securities in the Fund calculated so as to count most heavily those securities with the highest dollar value. Average weighted maturity is important to investors as an indication of the Fund’s sensitivity to changes in interest rates. Usually, the longer the average weighted maturity, the more fluctuation in share price you can expect. |
| Summary of Selection Criteria for Rule 35d-1 Term in Fund Name [Text Block] | As part of its investments in municipal securities, the Fund invests primarily in investment grade securities or the unrated equivalent. The "unrated equivalent" refers to securities that are unrated but deemed by the adviser to be of comparable quality. Investment grade securities carry a minimum rating of Baa3, BBB–, or BBB– by Moody’s Investors Service Inc. (Moody’s), S&P Global Ratings (S&P), or Fitch Ratings (Fitch), respectively, or are unrated but deemed by the adviser to be of comparable quality. |
| Rule 35d-1 Eighty Percent Investment Policy [Text Block] | Under normal circumstances, the Fund invests at least 80% of its Assets in municipal securities, the income from which is exempt from federal income tax. |