| Form N-CSR Cover | 12 Months Ended |
| Oct. 31, 2024 | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | JPMorgan Trust IV |
| Entity Central Index Key | 0001659326 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Oct. 31, 2024 |
| Shareholder Report | 12 Months Ended |
| Oct. 31, 2024 USD ($) Holding | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | JPMorgan Trust IV |
| Entity Central Index Key | 0001659326 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Oct. 31, 2024 |
| C000205719 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | JPMorgan Emerging Markets Research Enhanced Equity Fund |
| Class Name | Class I Shares |
| Trading Symbol | EMREX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the JPMorgan Emerging Markets Research Enhanced Equity Fund (the "Fund") for the period of November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at www.jpmorganfunds.com/funddocuments. You can also request this information by contacting us at 1-800-480-4111 or by sending an e-mail request to Funds.Website.Support@jpmorganfunds.com or by asking any financial intermediary that offers shares of the Fund. |
| Additional Information Phone Number | 1-800-480-4111 |
| Additional Information Email | Funds.Website.Support@jpmorganfunds.com |
| Additional Information Website | www.jpmorganfunds.com/funddocuments |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund (Class) Costs of a Costs paid as a percentage JPMorgan Emerging Markets Research Enhanced Equity Fund $ 0.45 % |
| Expenses Paid, Amount | $ 50 |
| Expense Ratio, Percent | 0.45% |
| Factors Affecting Performance [Text Block] | How did the Fund Perform? The JPMorgan Emerging Markets Research Enhanced Equity Fund's Class I Shares returned 22.07% for the year ended October 31, 2024. The MSCI Emerging Markets Index (net total return) (the The Fund's holdings in China detracted from performance relative to the Index. Stock selection in India also detracted from performance relative to the Index. The Fund's stock selection in Taiwan contributed to performance relative to the Index. Stock selection in the United Arab Emirates also aided performance. |
| Performance Past Does Not Indicate Future [Text] | The performance quoted is past performance and is not a guarantee of future results. |
| Line Graph [Table Text Block] | Fund Performance |
| Average Annual Return [Table Text Block] | AVERAGE ANNUAL TOTAL RETURNS INCEPTION 1 YEAR 5 YEAR SINCE JPMorgan Emerging Markets Research Enhanced Equity Fund (Class I Shares) January 30, 2019 22.07 % 2.97 % 4.58 % MSCI Emerging Markets Index (net total return) 25.32 3.93 5.13 |
| Performance Inception Date | Jan. 30, 2019 |
| No Deduction of Taxes [Text Block] | Also, performance shown in this section does not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on gains resulting from redemptions of Fund shares. |
| Updated Performance Information Location [Text Block] | Updated performance information is available by visiting www.jpmorganfunds.com or by calling 1-800-480-4111. |
| Net Assets | $ 2,186,522,000 |
| Holdings Count | Holding | 396 |
| Advisory Fees Paid, Amount | $ 4,202,000 |
| Investment Company Portfolio Turnover | 40% |
| Additional Fund Statistics [Text Block] | Fund net assets (000's) $ Total number of portfolio holdings 396 Portfolio turnover rate 40 % Total advisory fees paid (000's) $ |
| Holdings [Text Block] | PORTFOLIO COMPOSITION - COUNTRY |
| C000205718 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | JPMorgan Emerging Markets Research Enhanced Equity Fund |
| Class Name | Class R6 Shares |
| Trading Symbol | EMRSX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the JPMorgan Emerging Markets Research Enhanced Equity Fund (the "Fund") for the period of November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at www.jpmorganfunds.com/funddocuments. You can also request this information by contacting us at 1-800-480-4111 or by sending an e-mail request to Funds.Website.Support@jpmorganfunds.com or by asking any financial intermediary that offers shares of the Fund. |
| Additional Information Phone Number | 1-800-480-4111 |
| Additional Information Email | Funds.Website.Support@jpmorganfunds.com |
| Additional Information Website | www.jpmorganfunds.com/funddocuments |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund (Class) Costs of a Costs paid as a percentage JPMorgan Emerging Markets Research Enhanced Equity Fund $ 0.35 % |
| Expenses Paid, Amount | $ 39 |
| Expense Ratio, Percent | 0.35% |
| Factors Affecting Performance [Text Block] | How did the Fund Perform? The JPMorgan Emerging Markets Research Enhanced Equity Fund's Class R6 Shares returned 22.17% for the year ended October 31, 2024. The MSCI Emerging Markets Index (net total return) (the The Fund's holdings in China detracted from performance relative to the Index. Stock selection in India also detracted from performance relative to the Index. The Fund's stock selection in Taiwan contributed to performance relative to the Index. Stock selection in the United Arab Emirates also aided performance. |
| Performance Past Does Not Indicate Future [Text] | The performance quoted is past performance and is not a guarantee of future results. |
| Line Graph [Table Text Block] | Fund Performance |
| Average Annual Return [Table Text Block] | AVERAGE ANNUAL TOTAL RETURNS INCEPTION 1 YEAR 5 YEAR SINCE JPMorgan Emerging Markets Research Enhanced Equity Fund (Class R6 Shares) December 11, 2018 22.17 % 3.07 % 4.69 % MSCI Emerging Markets Index (net total return) 25.32 3.93 5.13 |
| Performance Inception Date | Dec. 11, 2018 |
| No Deduction of Taxes [Text Block] | Also, performance shown in this section does not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on gains resulting from redemptions of Fund shares. |
| Updated Performance Information Location [Text Block] | Updated performance information is available by visiting www.jpmorganfunds.com or by calling 1-800-480-4111. |
| Net Assets | $ 2,186,522,000 |
| Holdings Count | Holding | 396 |
| Advisory Fees Paid, Amount | $ 4,202,000 |
| Investment Company Portfolio Turnover | 40% |
| Additional Fund Statistics [Text Block] | Fund net assets (000's) $ Total number of portfolio holdings 396 Portfolio turnover rate 40 % Total advisory fees paid (000's) $ |
| Holdings [Text Block] | PORTFOLIO COMPOSITION - COUNTRY |
| C000205721 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | JPMorgan International Hedged Equity Fund |
| Class Name | Class A Shares |
| Trading Symbol | JIHAX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the JPMorgan International Hedged Equity Fund (the "Fund") |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at www.jpmorganfunds.com/funddocuments. You can also request this information by contacting us at 1-800-480-4111 or by sending an e-mail request to Funds.Website.Support@jpmorganfunds.com or by asking any financial intermediary that offers shares of the Fund. |
| Material Fund Change Notice [Text Block] | This report describes changes to the Fund that occurred during the reporting period. |
| Additional Information Phone Number | 1-800-480-4111 |
| Additional Information Email | Funds.Website.Support@jpmorganfunds.com |
| Additional Information Website | www.jpmorganfunds.com/funddocuments |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund (Class) Costs of a Costs paid as a percentage JPMorgan International Hedged Equity Fund $ 0.85 % |
| Expenses Paid, Amount | $ 91 |
| Expense Ratio, Percent | 0.85% |
| Factors Affecting Performance [Text Block] | How did the Fund Perform? The JPMorgan International Hedged Equity Fund's Class A Shares, without a sales charge, returned 14.84% for the year ended October 31, 2024. The MSCI EAFE Index (net total return) (the "Index") returned 22.97% and the ICE BofA 3-Month US Treasury Bill Index returned 5.39% for the year ended October 31, 2024. The Fund’s security selection in the consumer staples and technology-software sectors detracted from performance relative to the Index. The Fund’s security selection in the basic industries and consumer cyclical & services sectors contributed to performance relative to the Index. |
| Performance Past Does Not Indicate Future [Text] | The performance quoted is past performance and is not a guarantee of future results. |
| Line Graph [Table Text Block] | Fund Performance |
| Average Annual Return [Table Text Block] | AVERAGE ANNUAL TOTAL RETURNS INCEPTION 1 YEAR 5 YEAR SINCE JPMorgan International Hedged Equity Fund (Class A Shares) March 15, 2019 8.84 % 2.39 % 2.81 % JPMorgan International Hedged Equity Fund (Class A Shares) - excluding sales charge 14.84 3.50 3.79 MSCI EAFE Index (net total return) 22.97 6.24 6.59 ICE BofA 3-Month US Treasury Bill Index 5.39 2.37 2.37 |
| Performance Inception Date | Mar. 15, 2019 |
| No Deduction of Taxes [Text Block] | Also, performance shown in this section does not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on gains resulting from redemptions of Fund shares. |
| Updated Performance Information Location [Text Block] | Updated performance information is available by visiting www.jpmorganfunds.com or by calling 1-800-480-4111. |
| Net Assets | $ 183,031,000 |
| Holdings Count | Holding | 203 |
| Advisory Fees Paid, Amount | $ 178,000 |
| Investment Company Portfolio Turnover | 27% |
| Additional Fund Statistics [Text Block] | Fund net assets (000's) $ Total number of portfolio holdings 203 Portfolio turnover rate 27 % Total advisory fees paid (000's) $ |
| Holdings [Text Block] | PORTFOLIO COMPOSITION - COUNTRY |
| Material Fund Change [Text Block] | Material changes to the Fund during the period At a meeting held on November 19-21, 2024, the Fund’s Board of Trustees agreed to consider the reorganization (the “Reorganization”) of the Fund into a newly created exchange-traded fund, JPMorgan International Hedged Equity Laddered Overlay ETF. If approved at a meeting in February 2025, the Reorganization is expected to occur as of the close of business on or about July 11, 2025. This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund’s prospectus at www.jpmorganfunds.com/funddocuments or upon request at 1-800-480-4111. |
| Summary of Change Legend [Text Block] | This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund’s prospectus at www.jpmorganfunds.com/funddocuments or upon request at 1-800-480-4111. |
| Updated Prospectus Phone Number | 1-800-480-4111 |
| Updated Prospectus Web Address | www.jpmorganfunds.com/funddocuments |
| C000205724 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | JPMorgan International Hedged Equity Fund |
| Class Name | Class C Shares |
| Trading Symbol | JIHCX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the JPMorgan International Hedged Equity Fund (the "Fund") |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at www.jpmorganfunds.com/funddocuments. You can also request this information by contacting us at 1-800-480-4111 or by sending an e-mail request to Funds.Website.Support@jpmorganfunds.com or by asking any financial intermediary that offers shares of the Fund. |
| Material Fund Change Notice [Text Block] | This report describes changes to the Fund that occurred during the reporting period. |
| Additional Information Phone Number | 1-800-480-4111 |
| Additional Information Email | Funds.Website.Support@jpmorganfunds.com |
| Additional Information Website | www.jpmorganfunds.com/funddocuments |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund (Class) Costs of a Costs paid as a percentage JPMorgan International Hedged Equity Fund $ 1.35 % |
| Expenses Paid, Amount | $ 144 |
| Expense Ratio, Percent | 1.35% |
| Factors Affecting Performance [Text Block] | How did the Fund Perform? The JPMorgan International Hedged Equity Fund's Class C Shares, without a sales charge, returned 14.25% for the year ended October 31, 2024. The MSCI EAFE Index (net total return) (the "Index") returned 22.97% and the ICE BofA 3-Month US Treasury Bill Index returned 5.39% for the year ended October 31, 2024. The Fund’s security selection in the consumer staples and technology-software sectors detracted from performance relative to the Index. The Fund’s security selection in the basic industries and consumer cyclical & services sectors contributed to performance relative to the Index. |
| Performance Past Does Not Indicate Future [Text] | The performance quoted is past performance and is not a guarantee of future results. |
| Line Graph [Table Text Block] | Fund Performance |
| Average Annual Return [Table Text Block] | AVERAGE ANNUAL TOTAL RETURNS INCEPTION 1 YEAR 5 YEAR SINCE JPMorgan International Hedged Equity Fund (Class C Shares) March 15, 2019 13.25 % 2.97 % 3.27 % JPMorgan International Hedged Equity Fund (Class C Shares) - excluding sales charge 14.25 2.97 3.27 MSCI EAFE Index (net total return) 22.97 6.24 6.59 ICE BofA 3-Month US Treasury Bill Index 5.39 2.37 2.37 |
| Performance Inception Date | Mar. 15, 2019 |
| No Deduction of Taxes [Text Block] | Also, performance shown in this section does not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on gains resulting from redemptions of Fund shares. |
| Updated Performance Information Location [Text Block] | Updated performance information is available by visiting www.jpmorganfunds.com or by calling 1-800-480-4111. |
| Net Assets | $ 183,031,000 |
| Holdings Count | Holding | 203 |
| Advisory Fees Paid, Amount | $ 178,000 |
| Investment Company Portfolio Turnover | 27% |
| Additional Fund Statistics [Text Block] | Fund net assets (000's) $ Total number of portfolio holdings 203 Portfolio turnover rate 27 % Total advisory fees paid (000's) $ |
| Holdings [Text Block] | PORTFOLIO COMPOSITION - COUNTRY |
| Material Fund Change [Text Block] | Material changes to the Fund during the period At a meeting held on November 19-21, 2024, the Fund’s Board of Trustees agreed to consider the reorganization (the “Reorganization”) of the Fund into a newly created exchange-traded fund, JPMorgan International Hedged Equity Laddered Overlay ETF. If approved at a meeting in February 2025, the Reorganization is expected to occur as of the close of business on or about July 11, 2025. This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund’s prospectus at www.jpmorganfunds.com/funddocuments or upon request at 1-800-480-4111. |
| Summary of Change Legend [Text Block] | This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund’s prospectus at www.jpmorganfunds.com/funddocuments or upon request at 1-800-480-4111. |
| Updated Prospectus Phone Number | 1-800-480-4111 |
| Updated Prospectus Web Address | www.jpmorganfunds.com/funddocuments |
| C000205722 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | JPMorgan International Hedged Equity Fund |
| Class Name | Class I Shares |
| Trading Symbol | JIHIX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the JPMorgan International Hedged Equity Fund (the "Fund") |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at www.jpmorganfunds.com/funddocuments. You can also request this information by contacting us at 1-800-480-4111 or by sending an e-mail request to Funds.Website.Support@jpmorganfunds.com or by asking any financial intermediary that offers shares of the Fund. |
| Material Fund Change Notice [Text Block] | This report describes changes to the Fund that occurred during the reporting period. |
| Additional Information Phone Number | 1-800-480-4111 |
| Additional Information Email | Funds.Website.Support@jpmorganfunds.com |
| Additional Information Website | www.jpmorganfunds.com/funddocuments |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund (Class) Costs of a Costs paid as a percentage JPMorgan International Hedged Equity Fund $ 0.60 % |
| Expenses Paid, Amount | $ 64 |
| Expense Ratio, Percent | 0.60% |
| Factors Affecting Performance [Text Block] | How did the Fund Perform? The JPMorgan International Hedged Equity Fund's Class I Shares returned 15.07% for the year ended October 31, 2024. The MSCI EAFE Index (net total return) (the "Index") returned 22.97% and the ICE BofA 3-Month US Treasury Bill Index returned 5.39% for the year ended October 31, 2024. The Fund’s security selection in the consumer staples and technology-software sectors detracted from performance relative to the Index. The Fund’s security selection in the basic industries and consumer cyclical & services sectors contributed to performance relative to the Index. |
| Performance Past Does Not Indicate Future [Text] | The performance quoted is past performance and is not a guarantee of future results. |
| Line Graph [Table Text Block] | Fund Performance |
| Average Annual Return [Table Text Block] | AVERAGE ANNUAL TOTAL RETURNS INCEPTION 1 YEAR 5 YEAR SINCE JPMorgan International Hedged Equity Fund (Class I Shares) March 15, 2019 15.07 % 3.75 % 4.06 % MSCI EAFE Index (net total return) 22.97 6.24 6.59 ICE BofA 3-Month US Treasury Bill Index 5.39 2.37 2.37 |
| Performance Inception Date | Mar. 15, 2019 |
| No Deduction of Taxes [Text Block] | Also, performance shown in this section does not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on gains resulting from redemptions of Fund shares. |
| Updated Performance Information Location [Text Block] | Updated performance information is available by visiting www.jpmorganfunds.com or by calling 1-800-480-4111. |
| Net Assets | $ 183,031,000 |
| Holdings Count | Holding | 203 |
| Advisory Fees Paid, Amount | $ 178,000 |
| Investment Company Portfolio Turnover | 27% |
| Additional Fund Statistics [Text Block] | Fund net assets (000's) $ Total number of portfolio holdings 203 Portfolio turnover rate 27 % Total advisory fees paid (000's) $ |
| Holdings [Text Block] | PORTFOLIO COMPOSITION - COUNTRY |
| Material Fund Change [Text Block] | Material changes to the Fund during the period At a meeting held on November 19-21, 2024, the Fund’s Board of Trustees agreed to consider the reorganization (the “Reorganization”) of the Fund into a newly created exchange-traded fund, JPMorgan International Hedged Equity Laddered Overlay ETF. If approved at a meeting in February 2025, the Reorganization is expected to occur as of the close of business on or about July 11, 2025. This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund’s prospectus at www.jpmorganfunds.com/funddocuments or upon request at 1-800-480-4111. |
| Summary of Change Legend [Text Block] | This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund’s prospectus at www.jpmorganfunds.com/funddocuments or upon request at 1-800-480-4111. |
| Updated Prospectus Phone Number | 1-800-480-4111 |
| Updated Prospectus Web Address | www.jpmorganfunds.com/funddocuments |
| C000205723 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | JPMorgan International Hedged Equity Fund |
| Class Name | Class R5 Shares |
| Trading Symbol | JIHYX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the JPMorgan International Hedged Equity Fund (the "Fund") for the period of November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at www.jpmorganfunds.com/funddocuments. You can also request this information by contacting us at 1-800-480-4111 or by sending an e-mail request to Funds.Website.Support@jpmorganfunds.com or by asking any financial intermediary that offers shares of the Fund. |
| Material Fund Change Notice [Text Block] | This report describes changes to the Fund that occurred during the reporting period. |
| Additional Information Phone Number | 1-800-480-4111 |
| Additional Information Email | Funds.Website.Support@jpmorganfunds.com |
| Additional Information Website | www.jpmorganfunds.com/funddocuments |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund (Class) Costs of a Costs paid as a percentage JPMorgan International Hedged Equity Fund $ 0.45 % |
| Expenses Paid, Amount | $ 48 |
| Expense Ratio, Percent | 0.45% |
| Factors Affecting Performance [Text Block] | How did the Fund Perform? The JPMorgan International Hedged Equity Fund's Class R5 Shares returned 15.27% for the year ended October 31, 2024. The MSCI EAFE Index (net total return) (the "Index") returned 22.97% and the ICE BofA 3-Month US Treasury Bill Index returned 5.39% for the year ended October 31, 2024. The Fund’s security selection in the consumer staples and technology-software sectors detracted from performance relative to the Index. The Fund’s security selection in the basic industries and consumer cyclical & services sectors contributed to performance relative to the Index. |
| Performance Past Does Not Indicate Future [Text] | The performance quoted is past performance and is not a guarantee of future results. |
| Line Graph [Table Text Block] | Fund Performance |
| Average Annual Return [Table Text Block] | AVERAGE ANNUAL TOTAL RETURNS INCEPTION 1 YEAR 5 YEAR SINCE JPMorgan International Hedged Equity Fund (Class R5 Shares) March 15, 2019 15.27 % 3.91 % 4.21 % MSCI EAFE Index (net total return) 22.97 6.24 6.59 ICE BofA 3-Month US Treasury Bill Index 5.39 2.37 2.37 |
| Performance Inception Date | Mar. 15, 2019 |
| No Deduction of Taxes [Text Block] | Also, performance shown in this section does not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on gains resulting from redemptions of Fund shares. |
| Updated Performance Information Location [Text Block] | Updated performance information is available by visiting www.jpmorganfunds.com or by calling 1-800-480-4111. |
| Net Assets | $ 183,031,000 |
| Holdings Count | Holding | 203 |
| Advisory Fees Paid, Amount | $ 178,000 |
| Investment Company Portfolio Turnover | 27% |
| Additional Fund Statistics [Text Block] | Fund net assets (000's) $ Total number of portfolio holdings 203 Portfolio turnover rate 27 % Total advisory fees paid (000's) $ |
| Holdings [Text Block] | PORTFOLIO COMPOSITION - COUNTRY |
| Material Fund Change [Text Block] | Material changes to the Fund during the period At a meeting held on November 19-21, 2024, the Fund’s Board of Trustees agreed to consider the reorganization (the “Reorganization”) of the Fund into a newly created exchange-traded fund, JPMorgan International Hedged Equity Laddered Overlay ETF. If approved at a meeting in February 2025, the Reorganization is expected to occur as of the close of business on or about July 11, 2025. At a meeting held on November 19-21, 2024, the JPM Trust IV Board approved the liquidation of Class R5 Shares of Fund, which occurred on December 10, 2024. This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund’s prospectus at www.jpmorganfunds.com/funddocuments or upon request at 1-800-480-4111. |
| Summary of Change Legend [Text Block] | This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund’s prospectus at www.jpmorganfunds.com/funddocuments or upon request at 1-800-480-4111. |
| Updated Prospectus Phone Number | 1-800-480-4111 |
| Updated Prospectus Web Address | www.jpmorganfunds.com/funddocuments |
| C000205720 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | JPMorgan International Hedged Equity Fund |
| Class Name | Class R6 Shares |
| Trading Symbol | JIHRX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the JPMorgan International Hedged Equity Fund (the "Fund") |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at www.jpmorganfunds.com/funddocuments. You can also request this information by contacting us at 1-800-480-4111 or by sending an e-mail request to Funds.Website.Support@jpmorganfunds.com or by asking any financial intermediary that offers shares of the Fund. |
| Material Fund Change Notice [Text Block] | This report describes changes to the Fund that occurred during the reporting period. |
| Additional Information Phone Number | 1-800-480-4111 |
| Additional Information Email | Funds.Website.Support@jpmorganfunds.com |
| Additional Information Website | www.jpmorganfunds.com/funddocuments |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund (Class) Costs of a Costs paid as a percentage JPMorgan International Hedged Equity Fund $ 0.35 % |
| Expenses Paid, Amount | $ 37 |
| Expense Ratio, Percent | 0.35% |
| Factors Affecting Performance [Text Block] | How did the Fund Perform? The JPMorgan International Hedged Equity Fund's Class R6 Shares returned 15.37% for the year ended October 31, 2024. The MSCI EAFE Index (net total return) (the "Index") returned 22.97% and the ICE BofA 3-Month US Treasury Bill Index returned 5.39% for the year ended October 31, 2024. The Fund’s security selection in the consumer staples and technology-software sectors detracted from performance relative to the Index. The Fund’s security selection in the basic industries and consumer cyclical & services sectors contributed to performance relative to the Index. |
| Performance Past Does Not Indicate Future [Text] | The performance quoted is past performance and is not a guarantee of future results. |
| Line Graph [Table Text Block] | Fund Performance |
| Average Annual Return [Table Text Block] | AVERAGE ANNUAL TOTAL RETURNS INCEPTION 1 YEAR 5 YEAR SINCE JPMorgan International Hedged Equity Fund (Class R6 Shares) March 15, 2019 15.37 % 4.00 % 4.31 % MSCI EAFE Index (net total return) 22.97 6.24 6.59 ICE BofA 3-Month US Treasury Bill Index 5.39 2.37 2.37 |
| Performance Inception Date | Mar. 15, 2019 |
| No Deduction of Taxes [Text Block] | Also, performance shown in this section does not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on gains resulting from redemptions of Fund shares. |
| Updated Performance Information Location [Text Block] | Updated performance information is available by visiting www.jpmorganfunds.com or by calling 1-800-480-4111. |
| Net Assets | $ 183,031,000 |
| Holdings Count | Holding | 203 |
| Advisory Fees Paid, Amount | $ 178,000 |
| Investment Company Portfolio Turnover | 27% |
| Additional Fund Statistics [Text Block] | Fund net assets (000's) $ Total number of portfolio holdings 203 Portfolio turnover rate 27 % Total advisory fees paid (000's) $ |
| Holdings [Text Block] | PORTFOLIO COMPOSITION - COUNTRY |
| Material Fund Change [Text Block] | Material changes to the Fund during the period At a meeting held on November 19-21, 2024, the Fund’s Board of Trustees agreed to consider the reorganization (the “Reorganization”) of the Fund into a newly created exchange-traded fund, JPMorgan International Hedged Equity Laddered Overlay ETF. If approved at a meeting in February 2025, the Reorganization is expected to occur as of the close of business on or about July 11, 2025. This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund’s prospectus at www.jpmorganfunds.com/funddocuments or upon request at 1-800-480-4111. |
| Summary of Change Legend [Text Block] | This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund’s prospectus at www.jpmorganfunds.com/funddocuments or upon request at 1-800-480-4111. |
| Updated Prospectus Phone Number | 1-800-480-4111 |
| Updated Prospectus Web Address | www.jpmorganfunds.com/funddocuments |
| Shareholder Report, Line Graph (Details) - USD ($) | 12 Months Ended | 60 Months Ended | 68 Months Ended | 69 Months Ended | 71 Months Ended | |||||||
| Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2023 | Oct. 31, 2022 | Oct. 31, 2021 | Oct. 31, 2020 | Oct. 31, 2019 | Mar. 15, 2019 | Dec. 11, 2018 | |
| C000205719 [Member] | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | JPMorgan Emerging Markets Research Enhanced Equity Fund (Class I Shares) | |||||||||||
| Account Value | $ 1,301,894 | $ 1,301,894 | $ 1,301,894 | $ 1,301,894 | $ 1,301,894 | $ 1,066,499 | $ 959,679 | $ 1,422,482 | $ 1,216,326 | $ 1,124,644 | $ 1,000,000 | |
| Average Annual Return, Percent | 22.07% | 2.97% | 4.58% | |||||||||
| C000205718 [Member] | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | JPMorgan Emerging Markets Research Enhanced Equity Fund (Class R6 Shares) | |||||||||||
| Account Value | $ 6,549,318 | $ 6,549,318 | 6,549,318 | $ 6,549,318 | $ 6,549,318 | 5,360,947 | 4,816,924 | 7,133,713 | 6,096,133 | 5,629,921 | 5,000,000 | |
| Average Annual Return, Percent | 22.17% | 3.07% | 4.69% | |||||||||
| C000205721 [Member] | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | JPMorgan International Hedged Equity Fund (Class A Shares) | |||||||||||
| Account Value | $ 11,686 | $ 11,686 | $ 11,686 | 11,686 | $ 11,686 | 10,176 | 9,402 | 10,918 | 9,053 | 9,842 | $ 9,476 | |
| Average Annual Return, Percent | 8.84% | 2.39% | 2.81% | |||||||||
| C000205721 [Member] | Without Sales Load [Member] | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | JPMorgan International Hedged Equity Fund (Class A Shares) - excluding sales charge | |||||||||||
| Average Annual Return, Percent | 14.84% | 3.50% | 3.79% | |||||||||
| C000205724 [Member] | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | JPMorgan International Hedged Equity Fund (Class C Shares) | |||||||||||
| Account Value | $ 11,987 | $ 11,987 | $ 11,987 | 11,987 | 11,987 | 10,492 | 9,737 | 11,370 | 9,477 | 10,353 | 10,000 | |
| Average Annual Return, Percent | 13.25% | 2.97% | 3.27% | |||||||||
| C000205724 [Member] | Without Sales Load [Member] | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | JPMorgan International Hedged Equity Fund (Class C Shares) - excluding sales charge | |||||||||||
| Average Annual Return, Percent | 14.25% | 2.97% | 3.27% | |||||||||
| C000205722 [Member] | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | JPMorgan International Hedged Equity Fund (Class I Shares) | |||||||||||
| Account Value | $ 1,250,979 | $ 1,250,979 | $ 1,250,979 | 1,250,979 | 1,250,979 | 1,087,165 | 1,001,494 | 1,160,215 | 959,665 | 1,040,667 | 1,000,000 | |
| Average Annual Return, Percent | 15.07% | 3.75% | 4.06% | |||||||||
| C000205723 [Member] | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | JPMorgan International Hedged Equity Fund (Class R5 Shares) | |||||||||||
| Account Value | $ 12,614 | $ 12,614 | $ 12,614 | 12,614 | 12,614 | 10,942 | 10,064 | 11,642 | 9,614 | 10,413 | 10,000 | |
| Average Annual Return, Percent | 15.27% | 3.91% | 4.21% | |||||||||
| C000205720 [Member] | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | JPMorgan International Hedged Equity Fund (Class R6 Shares) | |||||||||||
| Account Value | $ 6,340,291 | $ 6,340,291 | $ 6,340,291 | 6,340,291 | 6,340,291 | 5,495,465 | 5,049,149 | 5,838,382 | 4,817,547 | 5,210,000 | 5,000,000 | |
| Average Annual Return, Percent | 15.37% | 4% | 4.31% | |||||||||
| MSCI Emerging Markets Index net total return [Member] | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | MSCI Emerging Markets Index (net total return) | |||||||||||
| Account Value | $ 1,342,679 | $ 1,342,679 | $ 1,342,679 | $ 1,342,679 | $ 1,342,679 | 1,071,440 | 967,010 | 1,401,999 | 1,198,696 | 1,107,324 | $ 1,000,000 | |
| Average Annual Return, Percent | 25.32% | 3.93% | 5.13% | 5.13% | ||||||||
| MSCI EAFE Index net total return [Member] | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | MSCI EAFE Index (net total return) | |||||||||||
| Account Value | $ 14,320 | $ 14,320 | $ 14,320 | $ 14,320 | $ 14,320 | 11,646 | 10,180 | 13,220 | 9,853 | 10,579 | 10,000 | |
| Average Annual Return, Percent | 22.97% | 6.24% | 6.59% | |||||||||
| ICE BofA 3 Month US Treasury Bill Index [Member] | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | ICE BofA 3-Month US Treasury Bill Index | |||||||||||
| Account Value | $ 11,410 | $ 11,410 | $ 11,410 | $ 11,410 | $ 11,410 | $ 10,826 | $ 10,330 | $ 10,249 | $ 10,244 | $ 10,151 | $ 10,000 | |
| Average Annual Return, Percent | 5.39% | 2.37% | 2.37% |
| Shareholder Report, Holdings (Details) | Oct. 31, 2024 |
| C000205719 [Member] | Others each less than 3 0 [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 16.20% |
| C000205719 [Member] | CHINA | |
| Holdings [Line Items] | |
| Percent of Total Investments | 26.70% |
| C000205719 [Member] | INDIA | |
| Holdings [Line Items] | |
| Percent of Total Investments | 17.70% |
| C000205719 [Member] | TAIWAN | |
| Holdings [Line Items] | |
| Percent of Total Investments | 17.50% |
| C000205719 [Member] | KOREA, REPUBLIC OF | |
| Holdings [Line Items] | |
| Percent of Total Investments | 10% |
| C000205719 [Member] | BRAZIL | |
| Holdings [Line Items] | |
| Percent of Total Investments | 5.20% |
| C000205719 [Member] | SAUDI ARABIA | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.30% |
| C000205719 [Member] | Short-Term Investments [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.40% |
| C000205718 [Member] | Others each less than 3 0 [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 16.20% |
| C000205718 [Member] | CHINA | |
| Holdings [Line Items] | |
| Percent of Total Investments | 26.70% |
| C000205718 [Member] | INDIA | |
| Holdings [Line Items] | |
| Percent of Total Investments | 17.70% |
| C000205718 [Member] | TAIWAN | |
| Holdings [Line Items] | |
| Percent of Total Investments | 17.50% |
| C000205718 [Member] | KOREA, REPUBLIC OF | |
| Holdings [Line Items] | |
| Percent of Total Investments | 10% |
| C000205718 [Member] | BRAZIL | |
| Holdings [Line Items] | |
| Percent of Total Investments | 5.20% |
| C000205718 [Member] | SAUDI ARABIA | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.30% |
| C000205718 [Member] | Short-Term Investments [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.40% |
| C000205721 [Member] | Others each less than 3 0 [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 11.10% |
| C000205721 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Total Investments | 22.10% |
| C000205721 [Member] | UNITED STATES | |
| Holdings [Line Items] | |
| Percent of Total Investments | 13.10% |
| C000205721 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Total Investments | 12.40% |
| C000205721 [Member] | FRANCE | |
| Holdings [Line Items] | |
| Percent of Total Investments | 11.90% |
| C000205721 [Member] | GERMANY | |
| Holdings [Line Items] | |
| Percent of Total Investments | 8.60% |
| C000205721 [Member] | AUSTRALIA | |
| Holdings [Line Items] | |
| Percent of Total Investments | 7.30% |
| C000205721 [Member] | SWITZERLAND | |
| Holdings [Line Items] | |
| Percent of Total Investments | 5.20% |
| C000205721 [Member] | NETHERLANDS | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.40% |
| C000205721 [Member] | DENMARK | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.10% |
| C000205721 [Member] | Short-Term Investments [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.80% |
| C000205724 [Member] | Others each less than 3 0 [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 11.10% |
| C000205724 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Total Investments | 22.10% |
| C000205724 [Member] | UNITED STATES | |
| Holdings [Line Items] | |
| Percent of Total Investments | 13.10% |
| C000205724 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Total Investments | 12.40% |
| C000205724 [Member] | FRANCE | |
| Holdings [Line Items] | |
| Percent of Total Investments | 11.90% |
| C000205724 [Member] | GERMANY | |
| Holdings [Line Items] | |
| Percent of Total Investments | 8.60% |
| C000205724 [Member] | AUSTRALIA | |
| Holdings [Line Items] | |
| Percent of Total Investments | 7.30% |
| C000205724 [Member] | SWITZERLAND | |
| Holdings [Line Items] | |
| Percent of Total Investments | 5.20% |
| C000205724 [Member] | NETHERLANDS | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.40% |
| C000205724 [Member] | DENMARK | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.10% |
| C000205724 [Member] | Short-Term Investments [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.80% |
| C000205722 [Member] | Others each less than 3 0 [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 11.10% |
| C000205722 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Total Investments | 22.10% |
| C000205722 [Member] | UNITED STATES | |
| Holdings [Line Items] | |
| Percent of Total Investments | 13.10% |
| C000205722 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Total Investments | 12.40% |
| C000205722 [Member] | FRANCE | |
| Holdings [Line Items] | |
| Percent of Total Investments | 11.90% |
| C000205722 [Member] | GERMANY | |
| Holdings [Line Items] | |
| Percent of Total Investments | 8.60% |
| C000205722 [Member] | AUSTRALIA | |
| Holdings [Line Items] | |
| Percent of Total Investments | 7.30% |
| C000205722 [Member] | SWITZERLAND | |
| Holdings [Line Items] | |
| Percent of Total Investments | 5.20% |
| C000205722 [Member] | NETHERLANDS | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.40% |
| C000205722 [Member] | DENMARK | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.10% |
| C000205722 [Member] | Short-Term Investments [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.80% |
| C000205723 [Member] | Others each less than 3 0 [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 11.10% |
| C000205723 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Total Investments | 22.10% |
| C000205723 [Member] | UNITED STATES | |
| Holdings [Line Items] | |
| Percent of Total Investments | 13.10% |
| C000205723 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Total Investments | 12.40% |
| C000205723 [Member] | FRANCE | |
| Holdings [Line Items] | |
| Percent of Total Investments | 11.90% |
| C000205723 [Member] | GERMANY | |
| Holdings [Line Items] | |
| Percent of Total Investments | 8.60% |
| C000205723 [Member] | AUSTRALIA | |
| Holdings [Line Items] | |
| Percent of Total Investments | 7.30% |
| C000205723 [Member] | SWITZERLAND | |
| Holdings [Line Items] | |
| Percent of Total Investments | 5.20% |
| C000205723 [Member] | NETHERLANDS | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.40% |
| C000205723 [Member] | DENMARK | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.10% |
| C000205723 [Member] | Short-Term Investments [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.80% |
| C000205720 [Member] | Others each less than 3 0 [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 11.10% |
| C000205720 [Member] | JAPAN | |
| Holdings [Line Items] | |
| Percent of Total Investments | 22.10% |
| C000205720 [Member] | UNITED STATES | |
| Holdings [Line Items] | |
| Percent of Total Investments | 13.10% |
| C000205720 [Member] | UNITED KINGDOM | |
| Holdings [Line Items] | |
| Percent of Total Investments | 12.40% |
| C000205720 [Member] | FRANCE | |
| Holdings [Line Items] | |
| Percent of Total Investments | 11.90% |
| C000205720 [Member] | GERMANY | |
| Holdings [Line Items] | |
| Percent of Total Investments | 8.60% |
| C000205720 [Member] | AUSTRALIA | |
| Holdings [Line Items] | |
| Percent of Total Investments | 7.30% |
| C000205720 [Member] | SWITZERLAND | |
| Holdings [Line Items] | |
| Percent of Total Investments | 5.20% |
| C000205720 [Member] | NETHERLANDS | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.40% |
| C000205720 [Member] | DENMARK | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.10% |
| C000205720 [Member] | Short-Term Investments [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.80% |
