JPMorgan US Large Cap Core Plus Fund Investment Risks - R2 R5 R6 Shares [Member] - JPMorgan US Large Cap Core Plus Fund	Jun. 30, 2026
Equity Market Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Equity Market Risk. The price of equity securities may rise or fall because of changes in the broad market or changes in a company’s financial condition, sometimes rapidly or unpredictably. These price movements may result from factors affecting individual companies, sectors or industries selected for the Fund’s portfolio or the securities market as a whole, such as changes in economic or political conditions. When the value of the Fund’s securities goes down, your investment in the Fund decreases in value.
General Market Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	General Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions. Securities in the Fund’s portfolio may underperform in comparison to securities in general financial markets, a particular financial market or other asset classes due to a number of factors, including inflation (or expectations for inflation), deflation (or expectations for deflation), interest rates, global demand for particular products or resources, market instability, financial system instability, debt crises and downgrades, embargoes, tariffs, trade wars, retaliatory trade measures, sanctions and other trade barriers, supply chain disruptions, regulatory events, other governmental trade or market control programs and related geopolitical events. In addition, the value of the Fund’s investments may be negatively affected by the occurrence of global events such as war, terrorism, environmental disasters, natural disasters or events, country instability, and infectious disease epidemics or pandemics or the threat or potential of one or more such factors and occurrences.
Short Selling Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Short Selling Risk. The Fund will incur a loss as a result of a short sale or other short equity position if the price of the security sold short increases in value between the date of the short sale and the date on which the fund purchases the security to replace the borrowed security or is required to pay under the swap agreement. In addition, when the Fund engages in short sales, a lender may request, or market conditions may dictate, that securities sold short be returned to the lender on short notice, and the Fund may have to buy the securities sold short at an unfavorable price. If this occurs, any anticipated gain to the Fund may be reduced or eliminated or the short sale may result in a loss. The Fund’s losses are potentially unlimited in a short sale transaction or other short equity position. Short sales or other short equity positions are speculative transactions and involve special risks, including greater reliance on the adviser’s ability to accurately anticipate the future value of a security. Furthermore, taking short positions in securities results in a form of leverage which may cause the Fund to be more volatile.
Swap Agreement Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Swap Agreement Risk. In addition to the risks associated with derivatives in general, the Fund will also be subject to risks related to swap agreements. The Fund may use swaps to establish both long and short positions in order to gain the desired exposure. Because certain swap agreements are not cleared and exchange-traded, but are private contracts into which the Fund and a swap counterparty enter as principals, the Fund may experience a loss or delay in recovering assets if the counterparty defaults on its obligations.
Large Cap Company Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Large Cap Company Risk. Because the Fund invests principally in large cap company securities, it may underperform other funds during periods when the Fund’s large cap securities are out of favor.
Derivatives Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Derivatives Risk. Derivatives, including swaps, may be riskier than other types of investments and may increase the volatility of the Fund. Derivatives may be sensitive to changes in economic and market conditions and may create leverage, which could result in losses that significantly exceed the Fund’s original investment. The Fund may be more volatile than if the Fund had not been leveraged because the leverage tends to exaggerate any effect on the value of the Fund’s portfolio securities. Certain derivatives expose the Fund to counterparty risk, which is the risk that the derivative counterparty will not fulfill its contractual obligations (and includes credit risk associated with the counterparty). Certain derivatives are synthetic instruments that attempt to replicate the performance of certain reference assets. With regard to such derivatives, the Fund does not have a claim on the reference assets and is subject to enhanced counterparty risk. Derivatives may not perform as expected, so the Fund may not realize the intended benefits. When used for hedging, the change in value of a derivative may not correlate as expected with the security or other risk being hedged. In addition, given their complexity, derivatives expose the Fund to risks of mispricing or improper valuation. Derivatives also can expose the Fund to derivative liquidity risk, which includes risks involving the liquidity demands that derivatives can create to make payments of margin, collateral, or settlement payments to counterparties, legal risk, which includes the risk of loss resulting from insufficient or unenforceable contractual documentation, insufficient capacity or authority of the Fund’s counterparty and operational risk, which includes documentation or settlement issues, system failures, inadequate controls and human error. Certain of the Fund’s transactions in foreign currency derivatives and other derivatives could also affect the amount, timing and character of distributions to shareholders which may result in the Fund realizing more ordinary income and short-term capital gain subject to tax at ordinary income tax rates than it would if it did not engage in such transactions, which may adversely impact the Fund’s after-tax returns.
High Portfolio Turnover Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	High Portfolio Turnover Risk. The Fund may engage in active and frequent trading leading to increased portfolio turnover, higher transaction costs, and the possibility that the recognition of capital gains will be accelerated, including short-term capital gains that will generally be taxable to shareholders as ordinary income.
Foreign Securities Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Foreign Securities Risk. Investments in foreign issuers and foreign securities (including depositary receipts) are subject to additional risks, including political and economic risks, unstable governments, greater volatility, decreased market liquidity, civil conflicts and war, currency fluctuations, sanctions or other measures by the United States or other governments, expropriation and nationalization risks, higher transaction costs, delayed settlement, possible foreign controls on investment and less stringent investor protection and disclosure standards of foreign markets. The securities markets of many foreign countries are relatively small, with a limited number of companies representing a small number of industries. In certain markets where securities and other instruments are not traded “delivery versus payment,” the Fund may not receive timely payment for securities or other instruments it has delivered or receive delivery of securities paid for and may be subject to increased risk that the counterparty will fail to make payments or delivery when due or default completely. Foreign market trading hours, clearance and settlement procedures, and holiday schedules may limit the Fund's ability to buy and sell securities. Events and evolving conditions in certain economies or markets may alter the risks associated with investments tied to countries or regions that historically were perceived as comparatively stable becoming riskier and more volatile.
Significant Holdings Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Significant Holdings Risk. Although the Fund is considered “diversified” under applicable law, a relatively large portion of its portfolio at times may be invested in a relatively small number of securities, or investments (including futures) whose performance relates in part to the economic results of a relatively small number of securities, or in a combination of the foregoing. These investments increase the risk that the value of the Fund’s shares is more sensitive to economic results of the underlying securities. The value of the shares of the Fund may also be more volatile than a fund that allocates its investments to a larger number of smaller positions or to investments whose performance is related to a larger number of securities.
Industry and Sector Focus Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Industry and Sector Focus Risk. At times, the Fund may increase the relative emphasis of its investments in a particular industry or sector. The prices of securities of issuers in a particular industry or sector may be more susceptible to fluctuations due to changes in economic or business conditions, government regulations, availability of basic resources or supplies, contagion risk within a particular industry or sector or to other industries or sectors, or other events that affect that industry or sector more than securities of issuers in other industries and sectors. To the extent that the Fund increases the relative emphasis of its investments in a particular industry or sector, the value of the Fund’s shares may fluctuate in response to events affecting that industry or sector.
Technology Sector Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Technology Sector Risk. Market or economic factors impacting technology companies could have an impact on the value of the Fund’s investments. The value of stocks of technology companies is particularly vulnerable to rapid changes in technology product cycles, rapid product obsolescence and frequent new product introduction, unpredictable changes in growth rates, competition for the services of qualified personnel,government regulation and competition, both domestically and internationally, including competition from foreign competitors with lower production costs, all of which may have an adverse effect on their profit margins. Stocks of technology companies, especially those of smaller, less-seasoned companies, tend to be more volatile than the overall market. Technology companies are heavily dependent on patent and intellectual property rights, the loss or impairment of which may adversely affect their profitability.
Financials Sector Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Financials Sector Risk. Financial services companies are subject to extensive governmental regulation which may limit both the amounts and types of loans and other financial commitments they can make, the interest rates and fees they can charge, the scope of their activities, the prices they can charge and the amount of capital they must maintain. Profitability is largely dependent on the availability and cost of capital funds and can fluctuate significantly when interest rates change or due to increased competition. In addition, deterioration of the credit markets generally may cause an adverse impact in a broad range of markets, including U.S. and international credit and interbank money markets generally, thereby affecting a wide range of financial institutions and markets. Certain events in the financials sector may cause an unusually high degree of volatility in the financial markets, both domestic and foreign, and cause certain financial services companies to incur large losses. Securities of financial services companies may experience a dramatic decline in value when such companies experience substantial declines in the valuations of their assets, take action to raise capital (such as the issuance of debt or equity securities), or cease operations. Credit losses resulting from financial difficulties of borrowers and financial losses associated with investment activities can negatively impact the sector. Insurance companies may be subject to severe price competition. Adverse economic, business or political developments could adversely affect financial institutions engaged in mortgage finance or other lending or investing activities directly or indirectly connected to the value of real estate.
Transactions Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Transactions Risk. The Fund could experience a loss and its liquidity may be negatively impacted when selling securities to meet redemption requests. The risk of loss increases if the redemption requests are unusually large or frequent or occur in times of overall market turmoil or declining prices for securities held long (or appreciating prices of securities held short). Similarly, large purchases of Fund shares may adversely affect the Fund’s performance to the extent that the Fund is delayed in investing new cash and is required to maintain a larger cash position than it ordinarily would.
Risk Lose Money [Member]
Prospectus [Line Items]
Risk [Text Block]	You could lose money investing in the Fund.
Risk Not Insured Depository Institution [Member]
Prospectus [Line Items]
Risk [Text Block]	Investments in the Fund are not deposits or obligations of, or guaranteed or endorsed by, any bank and are not insured or guaranteed by the FDIC, the Federal Reserve Board or any other government agency.

JPMorgan US Large Cap Core Plus Fund Investment Risks - R2 R5 R6 Shares [Member] - JPMorgan US Large Cap Core Plus Fund

Jun. 30, 2026

Equity Market Risk. The price of equity securities may rise or fall because of changes in the broad market or changes in a company’s financial condition, sometimes rapidly or unpredictably. These price movements may result from factors affecting individual companies, sectors or industries selected for the Fund’s portfolio or the securities market as a whole, such as changes in economic or political conditions. When the value of the Fund’s securities goes down, your investment in the Fund decreases in value.

Prospectus [Line Items]

Risk [Text Block]

General Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions. Securities in the Fund’s portfolio may underperform in comparison to securities in general financial markets, a particular financial market or other asset classes due to a number of factors, including inflation (or expectations for inflation), deflation (or expectations for deflation), interest rates, global demand for particular products or resources, market instability, financial system instability, debt crises and downgrades, embargoes, tariffs, trade wars, retaliatory trade measures, sanctions and other trade barriers, supply chain disruptions, regulatory events, other governmental trade or market control programs and related geopolitical events. In addition, the value of the Fund’s investments may be negatively affected by the occurrence of global events such as war, terrorism, environmental disasters, natural disasters or events, country instability, and infectious disease epidemics or pandemics or the threat or potential of one or more such factors and occurrences.

Short Selling Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Short Selling Risk. The Fund will incur a loss as a result of a short sale or other short equity position if the price of the security sold short increases in value between the date of the short sale and the date on which the fund purchases the security to replace the borrowed security or is required to pay under the swap agreement. In addition, when the Fund engages in short sales, a lender may request, or market conditions may dictate, that securities sold short be returned to the lender on short notice, and the Fund may have to buy the securities sold short at an unfavorable price. If this occurs, any anticipated gain to the Fund may be reduced or eliminated or the short sale may result in a loss. The Fund’s losses are potentially unlimited in a short sale transaction or other short equity position. Short sales or other short equity positions are speculative transactions and involve special risks, including greater reliance on the adviser’s ability to accurately anticipate the future value of a security. Furthermore, taking short positions in securities results in a form of leverage which may cause the Fund to be more volatile.

Swap Agreement Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Swap Agreement Risk. In addition to the risks associated with derivatives in general, the Fund will also be subject to risks related to swap agreements. The Fund may use swaps to establish both long and short positions in order to gain the desired exposure. Because certain swap agreements are not cleared and exchange-traded, but are private contracts into which the Fund and a swap counterparty enter as principals, the Fund may experience a loss or delay in recovering assets if the counterparty defaults on its obligations.

Large Cap Company Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Large Cap Company Risk. Because the Fund invests principally in large cap company securities, it may underperform other funds during periods when the Fund’s large cap securities are out of favor.

Derivatives Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Derivatives Risk. Derivatives, including swaps, may be riskier than other types of investments and may increase the volatility of the Fund. Derivatives may be sensitive to changes in economic and market conditions and may create leverage, which could result in losses that significantly exceed the Fund’s original investment. The Fund may be more volatile than if the Fund had not been leveraged because the leverage tends to exaggerate any effect on the value of the Fund’s portfolio securities. Certain derivatives expose the Fund to counterparty risk, which is the risk that the derivative counterparty will not fulfill its contractual obligations (and includes credit risk associated with the counterparty). Certain derivatives are synthetic instruments that attempt to replicate the performance of certain reference assets. With regard to such derivatives, the Fund does not have a claim on the reference assets and is subject to enhanced counterparty risk. Derivatives may not perform as expected, so the Fund may not realize the intended benefits. When used for hedging, the change in value of a derivative may not correlate as expected with the security or other risk being hedged. In addition, given their complexity, derivatives expose the Fund to risks of mispricing or improper valuation. Derivatives also can expose the Fund to derivative liquidity risk, which includes risks involving the liquidity demands that derivatives can create to make payments of margin, collateral, or settlement payments to counterparties, legal risk, which includes the risk of loss resulting from insufficient or unenforceable contractual documentation, insufficient capacity or authority of the Fund’s counterparty and operational risk, which includes documentation or settlement issues, system failures, inadequate controls and human error. Certain of the Fund’s transactions in foreign currency derivatives and other derivatives could also affect the amount, timing and character of distributions to shareholders which may result in the Fund realizing more ordinary income and short-term capital gain subject to tax at ordinary income tax rates than it would if it did not engage in such transactions, which may adversely impact the Fund’s after-tax returns.

High Portfolio Turnover Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

High Portfolio Turnover Risk. The Fund may engage in active and frequent trading leading to increased portfolio turnover, higher transaction costs, and the possibility that the recognition of capital gains will be accelerated, including short-term capital gains that will generally be taxable to shareholders as ordinary income.

Foreign Securities Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Foreign Securities Risk. Investments in foreign issuers and foreign securities (including depositary receipts) are subject to additional risks, including political and economic risks, unstable governments, greater volatility, decreased market liquidity, civil conflicts and war, currency fluctuations, sanctions or other measures by the United States or other governments, expropriation and nationalization risks, higher transaction costs, delayed settlement, possible foreign controls on investment and less stringent investor protection and disclosure standards of foreign markets. The securities markets of many foreign countries are relatively small, with a limited number of companies representing a small number of industries. In certain markets where securities and other instruments are not traded “delivery versus payment,” the Fund may not receive timely payment for securities or other instruments it has delivered or receive delivery of securities paid for and may be subject to increased risk that the counterparty will fail to make payments or delivery when due or default completely. Foreign market trading hours, clearance and settlement procedures, and holiday schedules may limit the Fund's ability to buy and sell securities. Events and evolving conditions in certain economies or markets may alter the risks associated with investments tied to countries or regions that historically were perceived as comparatively stable becoming riskier and more volatile.

Significant Holdings Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Significant Holdings Risk. Although the Fund is considered “diversified” under applicable law, a relatively large portion of its portfolio at times may be invested in a relatively small number of securities, or investments (including futures) whose performance relates in part to the economic results of a relatively small number of securities, or in a combination of the foregoing. These investments increase the risk that the value of the Fund’s shares is more sensitive to economic results of the underlying securities. The value of the shares of the Fund may also be more volatile than a fund that allocates its investments to a larger number of smaller positions or to investments whose performance is related to a larger number of securities.

Industry and Sector Focus Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Industry and Sector Focus Risk. At times, the Fund may increase the relative emphasis of its investments in a particular industry or sector. The prices of securities of issuers in a particular industry or sector may be more susceptible to fluctuations due to changes in economic or business conditions, government regulations, availability of basic resources or supplies, contagion risk within a particular industry or sector or to other industries or sectors, or other events that affect that industry or sector more than securities of issuers in other industries and sectors. To the extent that the Fund increases the relative emphasis of its investments in a particular industry or sector, the value of the Fund’s shares may fluctuate in response to events affecting that industry or sector.

Technology Sector Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Technology Sector Risk. Market or economic factors impacting technology companies could have an impact on the value of the Fund’s investments. The value of stocks of technology companies is particularly vulnerable to rapid changes in technology product cycles, rapid product obsolescence and frequent new product introduction, unpredictable changes in growth rates, competition for the services of qualified personnel,government regulation and competition, both domestically and internationally, including competition from foreign competitors with lower production costs, all of which may have an adverse effect on their profit margins. Stocks of technology companies, especially those of smaller, less-seasoned companies, tend to be more volatile than the overall market. Technology companies are heavily dependent on patent and intellectual property rights, the loss or impairment of which may adversely affect their profitability.

Financials Sector Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Financials Sector Risk. Financial services companies are subject to extensive governmental regulation which may limit both the amounts and types of loans and other financial commitments they can make, the interest rates and fees they can charge, the scope of their activities, the prices they can charge and the amount of capital they must maintain. Profitability is largely dependent on the availability and cost of capital funds and can fluctuate significantly when interest rates change or due to increased competition. In addition, deterioration of the credit markets generally may cause an adverse impact in a broad range of markets, including U.S. and international credit and interbank money markets generally, thereby affecting a wide range of financial institutions and markets. Certain events in the financials sector may cause an unusually high degree of volatility in the financial markets, both domestic and foreign, and cause certain financial services companies to incur large losses. Securities of financial services companies may experience a dramatic decline in value when such companies experience substantial declines in the valuations of their assets, take action to raise capital (such as the issuance of debt or equity securities), or cease operations. Credit losses resulting from financial difficulties of borrowers and financial losses associated with investment activities can negatively impact the sector. Insurance companies may be subject to severe price competition. Adverse economic, business or political developments could adversely affect financial institutions engaged in mortgage finance or other lending or investing activities directly or indirectly connected to the value of real estate.

Transactions Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Transactions Risk. The Fund could experience a loss and its liquidity may be negatively impacted when selling securities to meet redemption requests. The risk of loss increases if the redemption requests are unusually large or frequent or occur in times of overall market turmoil or declining prices for securities held long (or appreciating prices of securities held short). Similarly, large purchases of Fund shares may adversely affect the Fund’s performance to the extent that the Fund is delayed in investing new cash and is required to maintain a larger cash position than it ordinarily would.

Risk Lose Money [Member]

Prospectus [Line Items]

Risk [Text Block]

You could lose money investing in the Fund.

Risk Not Insured Depository Institution [Member]

Prospectus [Line Items]

Risk [Text Block]

Investments in the Fund are not deposits or obligations of, or guaranteed or endorsed by, any bank and are not insured or guaranteed by the FDIC, the Federal Reserve Board or any other government agency.