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Shareholder Report
 6 Months Ended
Aug. 31, 2024
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSRS
Amendment Flag false
Registrant Name JPMorgan Trust I
Entity Central Index Key 0001217286
Document Period End Date Aug. 31, 2024
C000136811 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Income Fund
Class Name Class A Shares
Trading Symbol JGIAX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Income Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Income Fund
(Class A Shares)		 $33 0.65%
*
This charge is annualized.
Expenses Paid, Amount $ 33
Expense Ratio, Percent 0.65% [1]
Net Assets $ 9,890,728,000
Holdings Count | Holding 2,104
Investment Company Portfolio Turnover 134.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $9,890,728
Total number of portfolio holdings $2,104
Portfolio turnover rate $134 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000136812 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Income Fund
Class Name Class C Shares
Trading Symbol JGCGX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Income Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Income Fund
(Class C Shares)		 $62 1.20%
*
This charge is annualized.
Expenses Paid, Amount $ 62
Expense Ratio, Percent 1.20% [2]
Net Assets $ 9,890,728,000
Holdings Count | Holding 2,104
Investment Company Portfolio Turnover 134.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $9,890,728
Total number of portfolio holdings $2,104
Portfolio turnover rate $134 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000136813 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Income Fund
Class Name Class I Shares
Trading Symbol JMSIX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Income Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Income Fund
(Class I Shares)		 $20 0.40%
*
This charge is annualized.
Expenses Paid, Amount $ 20
Expense Ratio, Percent 0.40% [3]
Net Assets $ 9,890,728,000
Holdings Count | Holding 2,104
Investment Company Portfolio Turnover 134.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $9,890,728
Total number of portfolio holdings $2,104
Portfolio turnover rate $134 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000136814 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Income Fund
Class Name Class R6 Shares
Trading Symbol JMSFX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Income Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Income Fund
(Class R6 Shares)		 $20 0.39%
*
This charge is annualized.
Expenses Paid, Amount $ 20
Expense Ratio, Percent 0.39% [4]
Net Assets $ 9,890,728,000
Holdings Count | Holding 2,104
Investment Company Portfolio Turnover 134.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $9,890,728
Total number of portfolio holdings $2,104
Portfolio turnover rate $134 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000008064 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan National Municipal Income Fund
Class Name Class A Shares
Trading Symbol JITAX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan National Municipal Income Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan National Municipal Income Fund
(Class A Shares)		 $33 0.65%
*
This charge is annualized.
Expenses Paid, Amount $ 33
Expense Ratio, Percent 0.65% [5]
Net Assets $ 2,057,057,000
Holdings Count | Holding 474
Investment Company Portfolio Turnover 16.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $2,057,057
Total number of portfolio holdings $474
Portfolio turnover rate $16 %
Holdings [Text Block]
CREDIT QUALITY ALLOCATIONS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000008066 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan National Municipal Income Fund
Class Name Class C Shares
Trading Symbol JITCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan National Municipal Income Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan National Municipal Income Fund
(Class C Shares)		 $61 1.20%
*
This charge is annualized.
Expenses Paid, Amount $ 61
Expense Ratio, Percent 1.20% [6]
Net Assets $ 2,057,057,000
Holdings Count | Holding 474
Investment Company Portfolio Turnover 16.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $2,057,057
Total number of portfolio holdings $474
Portfolio turnover rate $16 %
Holdings [Text Block]
CREDIT QUALITY ALLOCATIONS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000008063 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan National Municipal Income Fund
Class Name Class I Shares
Trading Symbol JITIX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan National Municipal Income Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan National Municipal Income Fund
(Class I Shares)		 $20 0.40%
*
This charge is annualized.
Expenses Paid, Amount $ 20
Expense Ratio, Percent 0.40% [7]
Net Assets $ 2,057,057,000
Holdings Count | Holding 474
Investment Company Portfolio Turnover 16.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $2,057,057
Total number of portfolio holdings $474
Portfolio turnover rate $16 %
Holdings [Text Block]
CREDIT QUALITY ALLOCATIONS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000195047 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan National Municipal Income Fund
Class Name Class R6 Shares
Trading Symbol JITZX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan National Municipal Income Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan National Municipal Income Fund
(Class R6 Shares)		 $15 0.30%
*
This charge is annualized.
Expenses Paid, Amount $ 15
Expense Ratio, Percent 0.30% [8]
Net Assets $ 2,057,057,000
Holdings Count | Holding 474
Investment Company Portfolio Turnover 16.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $2,057,057
Total number of portfolio holdings $474
Portfolio turnover rate $16 %
Holdings [Text Block]
CREDIT QUALITY ALLOCATIONS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000033869 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Emerging Markets Debt Fund
Class Name Class A Shares
Trading Symbol JEDAX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Emerging Markets Debt Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Emerging Markets Debt Fund
(Class A Shares)		 $54 1.05%
*
This charge is annualized.
Expenses Paid, Amount $ 54
Expense Ratio, Percent 1.05% [9]
Net Assets $ 981,670,000
Holdings Count | Holding 390
Investment Company Portfolio Turnover 32.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $981,670
Total number of portfolio holdings $390
Portfolio turnover rate $32 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - COUNTRY
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000033870 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Emerging Markets Debt Fund
Class Name Class C Shares
Trading Symbol JEDCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Emerging Markets Debt Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Emerging Markets Debt Fund
(Class C Shares)		 $80 1.55%
*
This charge is annualized.
Expenses Paid, Amount $ 80
Expense Ratio, Percent 1.55% [10]
Net Assets $ 981,670,000
Holdings Count | Holding 390
Investment Company Portfolio Turnover 32.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $981,670
Total number of portfolio holdings $390
Portfolio turnover rate $32 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - COUNTRY
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000007990 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Emerging Markets Debt Fund
Class Name Class I Shares
Trading Symbol JEMDX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Emerging Markets Debt Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Emerging Markets Debt Fund
(Class I Shares)		 $41 0.80%
*
This charge is annualized.
Expenses Paid, Amount $ 41
Expense Ratio, Percent 0.80% [11]
Net Assets $ 981,670,000
Holdings Count | Holding 390
Investment Company Portfolio Turnover 32.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $981,670
Total number of portfolio holdings $390
Portfolio turnover rate $32 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - COUNTRY
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000033533 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Emerging Markets Debt Fund
Class Name Class R5 Shares
Trading Symbol JEMRX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Emerging Markets Debt Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Emerging Markets Debt Fund
(Class R5 Shares)		 $39 0.75%
*
This charge is annualized.
Expenses Paid, Amount $ 39
Expense Ratio, Percent 0.75% [12]
Net Assets $ 981,670,000
Holdings Count | Holding 390
Investment Company Portfolio Turnover 32.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $981,670
Total number of portfolio holdings $390
Portfolio turnover rate $32 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - COUNTRY
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000116218 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Emerging Markets Debt Fund
Class Name Class R6 Shares
Trading Symbol JEMVX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Emerging Markets Debt Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Emerging Markets Debt Fund
(Class R6 Shares)		 $34 0.65%
*
This charge is annualized.
Expenses Paid, Amount $ 34
Expense Ratio, Percent 0.65% [13]
Net Assets $ 981,670,000
Holdings Count | Holding 390
Investment Company Portfolio Turnover 32.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $981,670
Total number of portfolio holdings $390
Portfolio turnover rate $32 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - COUNTRY
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000008073 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan New York Tax Free Bond Fund
Class Name Class A Shares
Trading Symbol VANTX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan New York Tax Free Bond Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan New York Tax Free Bond Fund
(Class A Shares)		 $28 0.54%
*
This charge is annualized.
Expenses Paid, Amount $ 28
Expense Ratio, Percent 0.54% [14]
Net Assets $ 369,185,000
Holdings Count | Holding 166
Investment Company Portfolio Turnover 28.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $369,185
Total number of portfolio holdings $166
Portfolio turnover rate $28 %
Holdings [Text Block]
CREDIT QUALITY ALLOCATIONS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000008075 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan New York Tax Free Bond Fund
Class Name Class C Shares
Trading Symbol JCNTX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan New York Tax Free Bond Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan New York Tax Free Bond Fund
(Class C Shares)		 $53 1.04%
*
This charge is annualized.
Expenses Paid, Amount $ 53
Expense Ratio, Percent 1.04% [15]
Net Assets $ 369,185,000
Holdings Count | Holding 166
Investment Company Portfolio Turnover 28.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $369,185
Total number of portfolio holdings $166
Portfolio turnover rate $28 %
Holdings [Text Block]
CREDIT QUALITY ALLOCATIONS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000008072 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan New York Tax Free Bond Fund
Class Name Class I Shares
Trading Symbol JNYIX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan New York Tax Free Bond Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan New York Tax Free Bond Fund
(Class I Shares)		 $22 0.44%
*
This charge is annualized.
Expenses Paid, Amount $ 22
Expense Ratio, Percent 0.44% [16]
Net Assets $ 369,185,000
Holdings Count | Holding 166
Investment Company Portfolio Turnover 28.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $369,185
Total number of portfolio holdings $166
Portfolio turnover rate $28 %
Holdings [Text Block]
CREDIT QUALITY ALLOCATIONS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000205202 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan New York Tax Free Bond Fund
Class Name Class R6 Shares
Trading Symbol VINRX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan New York Tax Free Bond Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan New York Tax Free Bond Fund
(Class R6 Shares)		 $17 0.34%
*
This charge is annualized.
Expenses Paid, Amount $ 17
Expense Ratio, Percent 0.34% [17]
Net Assets $ 369,185,000
Holdings Count | Holding 166
Investment Company Portfolio Turnover 28.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $369,185
Total number of portfolio holdings $166
Portfolio turnover rate $28 %
Holdings [Text Block]
CREDIT QUALITY ALLOCATIONS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000100362 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Floating Rate Income Fund
Class Name Class A Shares
Trading Symbol JPHAX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Floating Rate Income Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Floating Rate Income Fund
(Class A Shares)		 $50 0.98%
*
This charge is annualized.
Expenses Paid, Amount $ 50
Expense Ratio, Percent 0.98% [18]
Net Assets $ 331,044,000
Holdings Count | Holding 233
Investment Company Portfolio Turnover 20.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $331,044
Total number of portfolio holdings $233
Portfolio turnover rate $20 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
(a)
Amount rounds to less than 0.1%.
C000100363 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Floating Rate Income Fund
Class Name Class C Shares
Trading Symbol JPHCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Floating Rate Income Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Floating Rate Income Fund
(Class C Shares)		 $76 1.48%
*
This charge is annualized.
Expenses Paid, Amount $ 76
Expense Ratio, Percent 1.48% [19]
Net Assets $ 331,044,000
Holdings Count | Holding 233
Investment Company Portfolio Turnover 20.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $331,044
Total number of portfolio holdings $233
Portfolio turnover rate $20 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
(a)
Amount rounds to less than 0.1%.
C000100364 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Floating Rate Income Fund
Class Name Class I Shares
Trading Symbol JPHSX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Floating Rate Income Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Floating Rate Income Fund
(Class I Shares)		 $37 0.73%
*
This charge is annualized.
Expenses Paid, Amount $ 37
Expense Ratio, Percent 0.73% [20]
Net Assets $ 331,044,000
Holdings Count | Holding 233
Investment Company Portfolio Turnover 20.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $331,044
Total number of portfolio holdings $233
Portfolio turnover rate $20 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
(a)
Amount rounds to less than 0.1%.
C000132280 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Floating Rate Income Fund
Class Name Class R6 Shares
Trading Symbol JPHRX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Floating Rate Income Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Floating Rate Income Fund
(Class R6 Shares)		 $32 0.63%
*
This charge is annualized.
Expenses Paid, Amount $ 32
Expense Ratio, Percent 0.63% [21]
Net Assets $ 331,044,000
Holdings Count | Holding 233
Investment Company Portfolio Turnover 20.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $331,044
Total number of portfolio holdings $233
Portfolio turnover rate $20 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
(a)
Amount rounds to less than 0.1%.
C000123825 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Short Duration Core Plus Fund
Class Name Class A Shares
Trading Symbol JSDHX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Short Duration Core Plus Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Short Duration Core Plus Fund
(Class A Shares)		 $33 0.64%
*
This charge is annualized.
Expenses Paid, Amount $ 33
Expense Ratio, Percent 0.64% [22]
Net Assets $ 3,846,032,000
Holdings Count | Holding 858
Investment Company Portfolio Turnover 26.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $3,846,032
Total number of portfolio holdings $858
Portfolio turnover rate $26 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000123826 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Short Duration Core Plus Fund
Class Name Class C Shares
Trading Symbol JSDCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Short Duration Core Plus Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Short Duration Core Plus Fund
(Class C Shares)		 $58 1.14%
*
This charge is annualized.
Expenses Paid, Amount $ 58
Expense Ratio, Percent 1.14% [23]
Net Assets $ 3,846,032,000
Holdings Count | Holding 858
Investment Company Portfolio Turnover 26.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $3,846,032
Total number of portfolio holdings $858
Portfolio turnover rate $26 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000123827 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Short Duration Core Plus Fund
Class Name Class I Shares
Trading Symbol JSDSX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Short Duration Core Plus Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Short Duration Core Plus Fund
(Class I Shares)		 $20 0.39%
*
This charge is annualized.
Expenses Paid, Amount $ 20
Expense Ratio, Percent 0.39% [24]
Net Assets $ 3,846,032,000
Holdings Count | Holding 858
Investment Company Portfolio Turnover 26.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $3,846,032
Total number of portfolio holdings $858
Portfolio turnover rate $26 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000123828 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Short Duration Core Plus Fund
Class Name Class R6 Shares
Trading Symbol JSDRX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Short Duration Core Plus Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Short Duration Core Plus Fund
(Class R6 Shares)		 $17 0.33%
*
This charge is annualized.
Expenses Paid, Amount $ 17
Expense Ratio, Percent 0.33% [25]
Net Assets $ 3,846,032,000
Holdings Count | Holding 858
Investment Company Portfolio Turnover 26.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $3,846,032
Total number of portfolio holdings $858
Portfolio turnover rate $26 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000066240 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Total Return Fund
Class Name Class A Shares
Trading Symbol JMTAX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Total Return Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Total Return Fund
(Class A Shares)		 $32 0.62%
*
This charge is annualized.
Expenses Paid, Amount $ 32
Expense Ratio, Percent 0.62% [26]
Net Assets $ 160,354,000
Holdings Count | Holding 314
Investment Company Portfolio Turnover 231.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $160,354
Total number of portfolio holdings $314
Portfolio turnover rate $231 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000066241 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Total Return Fund
Class Name Class C Shares
Trading Symbol JMTCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Total Return Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Total Return Fund
(Class C Shares)		 $65 1.27%
*
This charge is annualized.
Expenses Paid, Amount $ 65
Expense Ratio, Percent 1.27% [27]
Net Assets $ 160,354,000
Holdings Count | Holding 314
Investment Company Portfolio Turnover 231.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $160,354
Total number of portfolio holdings $314
Portfolio turnover rate $231 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000066239 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Total Return Fund
Class Name Class I Shares
Trading Symbol JMTSX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Total Return Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Total Return Fund
(Class I Shares)		 $27 0.52%
*
This charge is annualized.
Expenses Paid, Amount $ 27
Expense Ratio, Percent 0.52% [28]
Net Assets $ 160,354,000
Holdings Count | Holding 314
Investment Company Portfolio Turnover 231.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $160,354
Total number of portfolio holdings $314
Portfolio turnover rate $231 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000138090 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Total Return Fund
Class Name Class R2 Shares
Trading Symbol JMTTX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Total Return Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Total Return Fund
(Class R2 Shares)		 $58 1.12%
*
This charge is annualized.
Expenses Paid, Amount $ 58
Expense Ratio, Percent 1.12% [29]
Net Assets $ 160,354,000
Holdings Count | Holding 314
Investment Company Portfolio Turnover 231.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $160,354
Total number of portfolio holdings $314
Portfolio turnover rate $231 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000066242 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Total Return Fund
Class Name Class R5 Shares
Trading Symbol JMTRX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Total Return Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Total Return Fund
(Class R5 Shares)		 $22 0.42%
*
This charge is annualized.
Expenses Paid, Amount $ 22
Expense Ratio, Percent 0.42% [30]
Net Assets $ 160,354,000
Holdings Count | Holding 314
Investment Company Portfolio Turnover 231.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $160,354
Total number of portfolio holdings $314
Portfolio turnover rate $231 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000138091 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Total Return Fund
Class Name Class R6 Shares
Trading Symbol JMTIX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Total Return Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Total Return Fund
(Class R6 Shares)		 $19 0.37%
*
This charge is annualized.
Expenses Paid, Amount $ 19
Expense Ratio, Percent 0.37% [31]
Net Assets $ 160,354,000
Holdings Count | Holding 314
Investment Company Portfolio Turnover 231.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $160,354
Total number of portfolio holdings $314
Portfolio turnover rate $231 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000093101 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Unconstrained Debt Fund
Class Name Class A Shares
Trading Symbol JSIAX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Unconstrained Debt Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Unconstrained Debt Fund
(Class A Shares)		 $45 0.89%
*
This charge is annualized.
Expenses Paid, Amount $ 45
Expense Ratio, Percent 0.89% [32]
Net Assets $ 1,091,887,000
Holdings Count | Holding 1,428
Investment Company Portfolio Turnover 118.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $1,091,887
Total number of portfolio holdings $1,428
Portfolio turnover rate $118 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000093102 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Unconstrained Debt Fund
Class Name Class C Shares
Trading Symbol JINCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Unconstrained Debt Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Unconstrained Debt Fund
(Class C Shares)		 $71 1.39%
*
This charge is annualized.
Expenses Paid, Amount $ 71
Expense Ratio, Percent 1.39% [33]
Net Assets $ 1,091,887,000
Holdings Count | Holding 1,428
Investment Company Portfolio Turnover 118.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $1,091,887
Total number of portfolio holdings $1,428
Portfolio turnover rate $118 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000093103 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Unconstrained Debt Fund
Class Name Class I Shares
Trading Symbol JSISX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Unconstrained Debt Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Unconstrained Debt Fund
(Class I Shares)		 $33 0.64%
*
This charge is annualized.
Expenses Paid, Amount $ 33
Expense Ratio, Percent 0.64% [34]
Net Assets $ 1,091,887,000
Holdings Count | Holding 1,428
Investment Company Portfolio Turnover 118.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $1,091,887
Total number of portfolio holdings $1,428
Portfolio turnover rate $118 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000093104 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Unconstrained Debt Fund
Class Name Class R2 Shares
Trading Symbol JISZX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Unconstrained Debt Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Unconstrained Debt Fund
(Class R2 Shares)		 $63 1.24%
*
This charge is annualized.
Expenses Paid, Amount $ 63
Expense Ratio, Percent 1.24% [35]
Net Assets $ 1,091,887,000
Holdings Count | Holding 1,428
Investment Company Portfolio Turnover 118.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $1,091,887
Total number of portfolio holdings $1,428
Portfolio turnover rate $118 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000093105 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Unconstrained Debt Fund
Class Name Class R5 Shares
Trading Symbol JSIRX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Unconstrained Debt Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Unconstrained Debt Fund
(Class R5 Shares)		 $30 0.59%
*
This charge is annualized.
Expenses Paid, Amount $ 30
Expense Ratio, Percent 0.59% [36]
Net Assets $ 1,091,887,000
Holdings Count | Holding 1,428
Investment Company Portfolio Turnover 118.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $1,091,887
Total number of portfolio holdings $1,428
Portfolio turnover rate $118 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000106117 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Unconstrained Debt Fund
Class Name Class R6 Shares
Trading Symbol JSIMX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Unconstrained Debt Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Unconstrained Debt Fund
(Class R6 Shares)		 $25 0.49%
*
This charge is annualized.
Expenses Paid, Amount $ 25
Expense Ratio, Percent 0.49% [37]
Net Assets $ 1,091,887,000
Holdings Count | Holding 1,428
Investment Company Portfolio Turnover 118.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $1,091,887
Total number of portfolio holdings $1,428
Portfolio turnover rate $118 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000123395 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Corporate Bond Fund
Class Name Class A Shares
Trading Symbol CBRAX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Corporate Bond Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Corporate Bond Fund
(Class A Shares)		 $38 0.74%
*
This charge is annualized.
Expenses Paid, Amount $ 38
Expense Ratio, Percent 0.74% [38]
Net Assets $ 307,507,000
Holdings Count | Holding 763
Investment Company Portfolio Turnover 41.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $307,507
Total number of portfolio holdings $763
Portfolio turnover rate $41 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000123396 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Corporate Bond Fund
Class Name Class C Shares
Trading Symbol CBRCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Corporate Bond Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Corporate Bond Fund
(Class C Shares)		 $64 1.24%
*
This charge is annualized.
Expenses Paid, Amount $ 64
Expense Ratio, Percent 1.24% [39]
Net Assets $ 307,507,000
Holdings Count | Holding 763
Investment Company Portfolio Turnover 41.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $307,507
Total number of portfolio holdings $763
Portfolio turnover rate $41 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000123397 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Corporate Bond Fund
Class Name Class I Shares
Trading Symbol CBFSX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Corporate Bond Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Corporate Bond Fund
(Class I Shares)		 $25 0.49%
*
This charge is annualized.
Expenses Paid, Amount $ 25
Expense Ratio, Percent 0.49% [40]
Net Assets $ 307,507,000
Holdings Count | Holding 763
Investment Company Portfolio Turnover 41.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $307,507
Total number of portfolio holdings $763
Portfolio turnover rate $41 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000210339 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan California Municipal Money Market Fund
Class Name Agency Shares
Trading Symbol JOYXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan California Municipal Money Market Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 1-800-766-7722 or by sending an e-mail request to global_liquidity_funds_services_us@jpmorganfunds.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-800-766-7722
Additional Information Email global_liquidity_funds_services_us@jpmorganfunds.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan California Municipal Money Market Fund
(Agency Shares)		 $13 0.26%
*
This charge is annualized.
Expenses Paid, Amount $ 13
Expense Ratio, Percent 0.26% [41]
Net Assets $ 328,207,000
Holdings Count | Holding 90
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $328,207
Total number of portfolio holdings $90
Holdings [Text Block]
EFFECTIVE MATURITY
(% of total investments)
2–7 calendar days 27.0
8–30 calendar days 49.3
31–60 calendar days 14.6
61–90 calendar days 1.1
91–180 calendar days 3.7
181+ calendar days 4.3
C000210338 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan California Municipal Money Market Fund
Class Name Institutional Class Shares
Trading Symbol JGCXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan California Municipal Money Market Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 1-800-766-7722 or by sending an e-mail request to global_liquidity_funds_services_us@jpmorganfunds.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-800-766-7722
Additional Information Email global_liquidity_funds_services_us@jpmorganfunds.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan California Municipal Money Market Fund
(Institutional Class Shares)		 $11 0.21%
*
This charge is annualized.
Expenses Paid, Amount $ 11
Expense Ratio, Percent 0.21% [42]
Net Assets $ 328,207,000
Holdings Count | Holding 90
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $328,207
Total number of portfolio holdings $90
Holdings [Text Block]
EFFECTIVE MATURITY
(% of total investments)
2–7 calendar days 27.0
8–30 calendar days 49.3
31–60 calendar days 14.6
61–90 calendar days 1.1
91–180 calendar days 3.7
181+ calendar days 4.3
C000008122 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan California Municipal Money Market Fund
Class Name Morgan Shares
Trading Symbol VCAXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan California Municipal Money Market Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan California Municipal Money Market Fund
(Morgan Shares)		 $30 0.59%
*
This charge is annualized.
Expenses Paid, Amount $ 30
Expense Ratio, Percent 0.59% [43]
Net Assets $ 328,207,000
Holdings Count | Holding 90
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $328,207
Total number of portfolio holdings $90
Holdings [Text Block]
EFFECTIVE MATURITY
(% of total investments)
2–7 calendar days 27.0
8–30 calendar days 49.3
31–60 calendar days 14.6
61–90 calendar days 1.1
91–180 calendar days 3.7
181+ calendar days 4.3
C000165403 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan California Municipal Money Market Fund
Class Name Premier Shares
Trading Symbol JCRXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan California Municipal Money Market Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 1-800-766-7722 or by sending an e-mail request to global_liquidity_funds_services_us@jpmorganfunds.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-800-766-7722
Additional Information Email global_liquidity_funds_services_us@jpmorganfunds.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan California Municipal Money Market Fund
(Premier Shares)		 $23 0.45%
*
This charge is annualized.
Expenses Paid, Amount $ 23
Expense Ratio, Percent 0.45% [44]
Net Assets $ 328,207,000
Holdings Count | Holding 90
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $328,207
Total number of portfolio holdings $90
Holdings [Text Block]
EFFECTIVE MATURITY
(% of total investments)
2–7 calendar days 27.0
8–30 calendar days 49.3
31–60 calendar days 14.6
61–90 calendar days 1.1
91–180 calendar days 3.7
181+ calendar days 4.3
C000073382 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan California Municipal Money Market Fund
Class Name Service Shares
Trading Symbol JCVXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan California Municipal Money Market Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 1-800-766-7722 or by sending an e-mail request to global_liquidity_funds_services_us@jpmorganfunds.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-800-766-7722
Additional Information Email global_liquidity_funds_services_us@jpmorganfunds.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan California Municipal Money Market Fund
(Service Shares)		 $53 1.05%
*
This charge is annualized.
Expenses Paid, Amount $ 53
Expense Ratio, Percent 1.05% [45]
Net Assets $ 328,207,000
Holdings Count | Holding 90
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $328,207
Total number of portfolio holdings $90
Holdings [Text Block]
EFFECTIVE MATURITY
(% of total investments)
2–7 calendar days 27.0
8–30 calendar days 49.3
31–60 calendar days 14.6
61–90 calendar days 1.1
91–180 calendar days 3.7
181+ calendar days 4.3
C000212345 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Prime Money Market Fund
Class Name Academy Shares
Trading Symbol JPAXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Prime Money Market Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at www.jpmorgan.com/academy. You can also request this information by contacting us at 1-646-341-6869 or by sending an e-mail request to funds@academysecurities.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-646-341-6869
Additional Information Email funds@academysecurities.com
Additional Information Website www.jpmorgan.com/academy
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Prime Money Market Fund
(Academy Shares)		 $9 0.17%
*
This charge is annualized.
Expenses Paid, Amount $ 9
Expense Ratio, Percent 0.17% [46]
Net Assets $ 82,333,535,000
Holdings Count | Holding 504
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $82,333,535
Total number of portfolio holdings $504
Holdings [Text Block]
EFFECTIVE MATURITY
(% of total investments)
2–7 calendar days 66.2
8–30 calendar days 9.2
31–60 calendar days 7.8
61–90 calendar days 3.0
91–180 calendar days 7.3
181+ calendar days 6.5
C000008138 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Prime Money Market Fund
Class Name Agency Shares
Trading Symbol VMIXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Prime Money Market Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 1-800-766-7722 or by sending an e-mail request to global_liquidity_funds_services_us@jpmorganfunds.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-800-766-7722
Additional Information Email global_liquidity_funds_services_us@jpmorganfunds.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Prime Money Market Fund
(Agency Shares)		 $13 0.26%
*
This charge is annualized.
Expenses Paid, Amount $ 13
Expense Ratio, Percent 0.26% [47]
Net Assets $ 82,333,535,000
Holdings Count | Holding 504
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $82,333,535
Total number of portfolio holdings $504
Holdings [Text Block]
EFFECTIVE MATURITY
(% of total investments)
2–7 calendar days 66.2
8–30 calendar days 9.2
31–60 calendar days 7.8
61–90 calendar days 3.0
91–180 calendar days 7.3
181+ calendar days 6.5
C000008134 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Prime Money Market Fund
Class Name Capital Shares
Trading Symbol CJPXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Prime Money Market Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 1-800-766-7722 or by sending an e-mail request to global_liquidity_funds_services_us@jpmorganfunds.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-800-766-7722
Additional Information Email global_liquidity_funds_services_us@jpmorganfunds.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Prime Money Market Fund
(Capital Shares)		 $9 0.17%
*
This charge is annualized.
Expenses Paid, Amount $ 9
Expense Ratio, Percent 0.17% [48]
Net Assets $ 82,333,535,000
Holdings Count | Holding 504
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $82,333,535
Total number of portfolio holdings $504
Holdings [Text Block]
EFFECTIVE MATURITY
(% of total investments)
2–7 calendar days 66.2
8–30 calendar days 9.2
31–60 calendar days 7.8
61–90 calendar days 3.0
91–180 calendar days 7.3
181+ calendar days 6.5
C000225257 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Prime Money Market Fund
Class Name Empower Shares
Trading Symbol EJPXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Prime Money Market Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Prime Money Market Fund
(Empower Shares)		 $9 0.18%
*
This charge is annualized.
Expenses Paid, Amount $ 9
Expense Ratio, Percent 0.18% [49]
Net Assets $ 82,333,535,000
Holdings Count | Holding 504
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $82,333,535
Total number of portfolio holdings $504
Holdings [Text Block]
EFFECTIVE MATURITY
(% of total investments)
2–7 calendar days 66.2
8–30 calendar days 9.2
31–60 calendar days 7.8
61–90 calendar days 3.0
91–180 calendar days 7.3
181+ calendar days 6.5
C000115390 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Prime Money Market Fund
Class Name IM Shares
Trading Symbol JIMXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Prime Money Market Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at www.jpmorganfunds.com/jpmfpages/imshares. You can also request this information by contacting us at 1-800-766-7722 or by sending an e-mail request to global_liquidity_funds_services_us@jpmorganfunds.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-800-766-7722
Additional Information Email global_liquidity_funds_services_us@jpmorganfunds.com
Additional Information Website www.jpmorganfunds.com/jpmfpages/imshares
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Prime Money Market Fund
(IM Shares)		 $6 0.12%
*
This charge is annualized.
Expenses Paid, Amount $ 6
Expense Ratio, Percent 0.12% [50]
Net Assets $ 82,333,535,000
Holdings Count | Holding 504
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $82,333,535
Total number of portfolio holdings $504
Holdings [Text Block]
EFFECTIVE MATURITY
(% of total investments)
2–7 calendar days 66.2
8–30 calendar days 9.2
31–60 calendar days 7.8
61–90 calendar days 3.0
91–180 calendar days 7.3
181+ calendar days 6.5
C000008130 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Prime Money Market Fund
Class Name Institutional Class Shares
Trading Symbol JINXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Prime Money Market Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 1-800-766-7722 or by sending an e-mail request to global_liquidity_funds_services_us@jpmorganfunds.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-800-766-7722
Additional Information Email global_liquidity_funds_services_us@jpmorganfunds.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Prime Money Market Fund
(Institutional Class Shares)		 $11 0.21%
*
This charge is annualized.
Expenses Paid, Amount $ 11
Expense Ratio, Percent 0.21% [51]
Net Assets $ 82,333,535,000
Holdings Count | Holding 504
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $82,333,535
Total number of portfolio holdings $504
Holdings [Text Block]
EFFECTIVE MATURITY
(% of total investments)
2–7 calendar days 66.2
8–30 calendar days 9.2
31–60 calendar days 7.8
61–90 calendar days 3.0
91–180 calendar days 7.3
181+ calendar days 6.5
C000008135 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Prime Money Market Fund
Class Name Morgan Shares
Trading Symbol VMVXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Prime Money Market Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Prime Money Market Fund
(Morgan Shares)		 $24 0.48%
*
This charge is annualized.
Expenses Paid, Amount $ 24
Expense Ratio, Percent 0.48% [52]
Net Assets $ 82,333,535,000
Holdings Count | Holding 504
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $82,333,535
Total number of portfolio holdings $504
Holdings [Text Block]
EFFECTIVE MATURITY
(% of total investments)
2–7 calendar days 66.2
8–30 calendar days 9.2
31–60 calendar days 7.8
61–90 calendar days 3.0
91–180 calendar days 7.3
181+ calendar days 6.5
C000008136 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Prime Money Market Fund
Class Name Premier Shares
Trading Symbol VPMXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Prime Money Market Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 1-800-766-7722 or by sending an e-mail request to global_liquidity_funds_services_us@jpmorganfunds.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-800-766-7722
Additional Information Email global_liquidity_funds_services_us@jpmorganfunds.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Prime Money Market Fund
(Premier Shares)		 $22 0.42%
*
This charge is annualized.
Expenses Paid, Amount $ 22
Expense Ratio, Percent 0.42% [53]
Net Assets $ 82,333,535,000
Holdings Count | Holding 504
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $82,333,535
Total number of portfolio holdings $504
Holdings [Text Block]
EFFECTIVE MATURITY
(% of total investments)
2–7 calendar days 66.2
8–30 calendar days 9.2
31–60 calendar days 7.8
61–90 calendar days 3.0
91–180 calendar days 7.3
181+ calendar days 6.5
C000008137 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Prime Money Market Fund
Class Name Reserve Shares
Trading Symbol JRVXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Prime Money Market Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 1-800-766-7722 or by sending an e-mail request to global_liquidity_funds_services_us@jpmorganfunds.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-800-766-7722
Additional Information Email global_liquidity_funds_services_us@jpmorganfunds.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Prime Money Market Fund
(Reserve Shares)		 $36 0.70%
*
This charge is annualized.
Expenses Paid, Amount $ 36
Expense Ratio, Percent 0.70% [54]
Net Assets $ 82,333,535,000
Holdings Count | Holding 504
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $82,333,535
Total number of portfolio holdings $504
Holdings [Text Block]
EFFECTIVE MATURITY
(% of total investments)
2–7 calendar days 66.2
8–30 calendar days 9.2
31–60 calendar days 7.8
61–90 calendar days 3.0
91–180 calendar days 7.3
181+ calendar days 6.5
C000066702 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Strategic Income Opportunities Fund
Class Name Class A Shares
Trading Symbol JSOAX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Strategic Income Opportunities Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Strategic Income Opportunities Fund
(Class A Shares)		 $48 0.94%
*
This charge is annualized.
Expenses Paid, Amount $ 48
Expense Ratio, Percent 0.94% [55]
Net Assets $ 10,027,843,000
Holdings Count | Holding 571
Investment Company Portfolio Turnover 260.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $10,027,843
Total number of portfolio holdings $571
Portfolio turnover rate $260 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000066703 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Strategic Income Opportunities Fund
Class Name Class C Shares
Trading Symbol JSOCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Strategic Income Opportunities Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Strategic Income Opportunities Fund
(Class C Shares)		 $73 1.44%
*
This charge is annualized.
Expenses Paid, Amount $ 73
Expense Ratio, Percent 1.44% [56]
Net Assets $ 10,027,843,000
Holdings Count | Holding 571
Investment Company Portfolio Turnover 260.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $10,027,843
Total number of portfolio holdings $571
Portfolio turnover rate $260 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000066701 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Strategic Income Opportunities Fund
Class Name Class I Shares
Trading Symbol JSOSX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Strategic Income Opportunities Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Strategic Income Opportunities Fund
(Class I Shares)		 $35 0.69%
*
This charge is annualized.
Expenses Paid, Amount $ 35
Expense Ratio, Percent 0.69% [57]
Net Assets $ 10,027,843,000
Holdings Count | Holding 571
Investment Company Portfolio Turnover 260.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $10,027,843
Total number of portfolio holdings $571
Portfolio turnover rate $260 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000066704 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Strategic Income Opportunities Fund
Class Name Class R5 Shares
Trading Symbol JSORX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Strategic Income Opportunities Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Strategic Income Opportunities Fund
(Class R5 Shares)		 $27 0.54%
*
This charge is annualized.
Expenses Paid, Amount $ 27
Expense Ratio, Percent 0.54% [58]
Net Assets $ 10,027,843,000
Holdings Count | Holding 571
Investment Company Portfolio Turnover 260.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $10,027,843
Total number of portfolio holdings $571
Portfolio turnover rate $260 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000123398 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Corporate Bond Fund
Class Name Class R6 Shares
Trading Symbol CBFVX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Corporate Bond Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Corporate Bond Fund
(Class R6 Shares)		 $20 0.39%
*
This charge is annualized.
Expenses Paid, Amount $ 20
Expense Ratio, Percent 0.39% [59]
Net Assets $ 307,507,000
Holdings Count | Holding 763
Investment Company Portfolio Turnover 41.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $307,507
Total number of portfolio holdings $763
Portfolio turnover rate $41 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000195119 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Strategic Income Opportunities Fund
Class Name Class R6 Shares
Trading Symbol JSOZX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Strategic Income Opportunities Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Strategic Income Opportunities Fund
(Class R6 Shares)		 $22 0.44%
*
This charge is annualized.
Expenses Paid, Amount $ 22
Expense Ratio, Percent 0.44% [60]
Net Assets $ 10,027,843,000
Holdings Count | Holding 571
Investment Company Portfolio Turnover 260.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $10,027,843
Total number of portfolio holdings $571
Portfolio turnover rate $260 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000008127 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Federal Money Market Fund
Class Name Agency Shares
Trading Symbol VFIXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Federal Money Market Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 1-800-766-7722 or by sending an e-mail request to global_liquidity_funds_services_us@jpmorganfunds.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-800-766-7722
Additional Information Email global_liquidity_funds_services_us@jpmorganfunds.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Federal Money Market Fund
(Agency Shares)		 $13 0.26%
*
This charge is annualized.
Expenses Paid, Amount $ 13
Expense Ratio, Percent 0.26% [61]
Net Assets $ 7,289,789,000
Holdings Count | Holding 75
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $7,289,789
Total number of portfolio holdings $75
Holdings [Text Block]
EFFECTIVE MATURITY
(% of total investments)
2–7 calendar days 14.5
8–30 calendar days 22.4
31–60 calendar days 33.3
61–90 calendar days 13.0
91–180 calendar days 15.2
181+ calendar days 1.6
C000008123 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Federal Money Market Fund
Class Name Institutional Class Shares
Trading Symbol JFMXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Federal Money Market Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 1-800-766-7722 or by sending an e-mail request to global_liquidity_funds_services_us@jpmorganfunds.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-800-766-7722
Additional Information Email global_liquidity_funds_services_us@jpmorganfunds.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Federal Money Market Fund
(Institutional Class Shares)		 $11 0.21%
*
This charge is annualized.
Expenses Paid, Amount $ 11
Expense Ratio, Percent 0.21% [62]
Net Assets $ 7,289,789,000
Holdings Count | Holding 75
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $7,289,789
Total number of portfolio holdings $75
Holdings [Text Block]
EFFECTIVE MATURITY
(% of total investments)
2–7 calendar days 14.5
8–30 calendar days 22.4
31–60 calendar days 33.3
61–90 calendar days 13.0
91–180 calendar days 15.2
181+ calendar days 1.6
C000008124 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Federal Money Market Fund
Class Name Morgan Shares
Trading Symbol VFVXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Federal Money Market Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Federal Money Market Fund
(Morgan Shares)		 $30 0.58%
*
This charge is annualized.
Expenses Paid, Amount $ 30
Expense Ratio, Percent 0.58% [63]
Net Assets $ 7,289,789,000
Holdings Count | Holding 75
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $7,289,789
Total number of portfolio holdings $75
Holdings [Text Block]
EFFECTIVE MATURITY
(% of total investments)
2–7 calendar days 14.5
8–30 calendar days 22.4
31–60 calendar days 33.3
61–90 calendar days 13.0
91–180 calendar days 15.2
181+ calendar days 1.6
C000008125 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Federal Money Market Fund
Class Name Premier Shares
Trading Symbol VFPXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Federal Money Market Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 1-800-766-7722 or by sending an e-mail request to global_liquidity_funds_services_us@jpmorganfunds.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-800-766-7722
Additional Information Email global_liquidity_funds_services_us@jpmorganfunds.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Federal Money Market Fund
(Premier Shares)		 $22 0.43%
*
This charge is annualized.
Expenses Paid, Amount $ 22
Expense Ratio, Percent 0.43% [64]
Net Assets $ 7,289,789,000
Holdings Count | Holding 75
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $7,289,789
Total number of portfolio holdings $75
Holdings [Text Block]
EFFECTIVE MATURITY
(% of total investments)
2–7 calendar days 14.5
8–30 calendar days 22.4
31–60 calendar days 33.3
61–90 calendar days 13.0
91–180 calendar days 15.2
181+ calendar days 1.6
C000008143 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Tax Free Money Market Fund
Class Name Agency Shares
Trading Symbol VTIXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Tax Free Money Market Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 1-800-766-7722 or by sending an e-mail request to global_liquidity_funds_services_us@jpmorganfunds.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-800-766-7722
Additional Information Email global_liquidity_funds_services_us@jpmorganfunds.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Tax Free Money Market Fund
(Agency Shares)		 $13 0.26%
*
This charge is annualized.
Expenses Paid, Amount $ 13
Expense Ratio, Percent 0.26% [65]
Net Assets $ 10,181,313,000
Holdings Count | Holding 528
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $10,181,313
Total number of portfolio holdings $528
Holdings [Text Block]
EFFECTIVE MATURITY
(% of total investments)
2–7 calendar days 26.6
8–30 calendar days 46.1
31–60 calendar days 9.8
61–90 calendar days 6.1
91–180 calendar days 7.1
181+ calendar days 4.3
C000008139 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Tax Free Money Market Fund
Class Name Institutional Class Shares
Trading Symbol JTFXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Tax Free Money Market Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 1-800-766-7722 or by sending an e-mail request to global_liquidity_funds_services_us@jpmorganfunds.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-800-766-7722
Additional Information Email global_liquidity_funds_services_us@jpmorganfunds.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Tax Free Money Market Fund
(Institutional Class Shares)		 $11 0.21%
*
This charge is annualized.
Expenses Paid, Amount $ 11
Expense Ratio, Percent 0.21% [66]
Net Assets $ 10,181,313,000
Holdings Count | Holding 528
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $10,181,313
Total number of portfolio holdings $528
Holdings [Text Block]
EFFECTIVE MATURITY
(% of total investments)
2–7 calendar days 26.6
8–30 calendar days 46.1
31–60 calendar days 9.8
61–90 calendar days 6.1
91–180 calendar days 7.1
181+ calendar days 4.3
C000008140 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Tax Free Money Market Fund
Class Name Morgan Shares
Trading Symbol VTMXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Tax Free Money Market Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Tax Free Money Market Fund
(Morgan Shares)		 $30 0.59%
*
This charge is annualized.
Expenses Paid, Amount $ 30
Expense Ratio, Percent 0.59% [67]
Net Assets $ 10,181,313,000
Holdings Count | Holding 528
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $10,181,313
Total number of portfolio holdings $528
Holdings [Text Block]
EFFECTIVE MATURITY
(% of total investments)
2–7 calendar days 26.6
8–30 calendar days 46.1
31–60 calendar days 9.8
61–90 calendar days 6.1
91–180 calendar days 7.1
181+ calendar days 4.3
C000008141 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Tax Free Money Market Fund
Class Name Premier Shares
Trading Symbol VXPXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Tax Free Money Market Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 1-800-766-7722 or by sending an e-mail request to global_liquidity_funds_services_us@jpmorganfunds.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-800-766-7722
Additional Information Email global_liquidity_funds_services_us@jpmorganfunds.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Tax Free Money Market Fund
(Premier Shares)		 $22 0.43%
*
This charge is annualized.
Expenses Paid, Amount $ 22
Expense Ratio, Percent 0.43% [68]
Net Assets $ 10,181,313,000
Holdings Count | Holding 528
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $10,181,313
Total number of portfolio holdings $528
Holdings [Text Block]
EFFECTIVE MATURITY
(% of total investments)
2–7 calendar days 26.6
8–30 calendar days 46.1
31–60 calendar days 9.8
61–90 calendar days 6.1
91–180 calendar days 7.1
181+ calendar days 4.3
C000008142 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Tax Free Money Market Fund
Class Name Reserve Shares
Trading Symbol RTJXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Tax Free Money Market Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 1-800-766-7722 or by sending an e-mail request to global_liquidity_funds_services_us@jpmorganfunds.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-800-766-7722
Additional Information Email global_liquidity_funds_services_us@jpmorganfunds.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Tax Free Money Market Fund
(Reserve Shares)		 $34 0.68%
*
This charge is annualized.
Expenses Paid, Amount $ 34
Expense Ratio, Percent 0.68% [69]
Net Assets $ 10,181,313,000
Holdings Count | Holding 528
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $10,181,313
Total number of portfolio holdings $528
Holdings [Text Block]
EFFECTIVE MATURITY
(% of total investments)
2–7 calendar days 26.6
8–30 calendar days 46.1
31–60 calendar days 9.8
61–90 calendar days 6.1
91–180 calendar days 7.1
181+ calendar days 4.3
C000190446 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Managed Income Fund
Class Name Class I Shares
Trading Symbol JMGLX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Managed Income Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Managed Income Fund
(Class I Shares)		 $20 0.39%
*
This charge is annualized.
Expenses Paid, Amount $ 20
Expense Ratio, Percent 0.39% [70]
Net Assets $ 5,693,478,000
Holdings Count | Holding 418
Investment Company Portfolio Turnover 47.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $5,693,478
Total number of portfolio holdings $418
Portfolio turnover rate $47 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000090816 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Managed Income Fund
Class Name Class L Shares
Trading Symbol JMGIX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Managed Income Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Managed Income Fund
(Class L Shares)		 $12 0.24%
*
This charge is annualized.
Expenses Paid, Amount $ 12
Expense Ratio, Percent 0.24% [71]
Net Assets $ 5,693,478,000
Holdings Count | Holding 418
Investment Company Portfolio Turnover 47.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $5,693,478
Total number of portfolio holdings $418
Portfolio turnover rate $47 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000008060 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan California Tax Free Bond Fund
Class Name Class A Shares
Trading Symbol JCBAX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan California Tax Free Bond Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan California Tax Free Bond Fund
(Class A Shares)		 $28 0.54%
*
This charge is annualized.
Expenses Paid, Amount $ 28
Expense Ratio, Percent 0.54% [72]
Net Assets $ 305,172,000
Holdings Count | Holding 186
Investment Company Portfolio Turnover 22.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $305,172
Total number of portfolio holdings $186
Portfolio turnover rate $22 %
Holdings [Text Block]
CREDIT QUALITY ALLOCATIONS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000008061 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan California Tax Free Bond Fund
Class Name Class C Shares
Trading Symbol JCBCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan California Tax Free Bond Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan California Tax Free Bond Fund
(Class C Shares)		 $53 1.04%
*
This charge is annualized.
Expenses Paid, Amount $ 53
Expense Ratio, Percent 1.04% [73]
Net Assets $ 305,172,000
Holdings Count | Holding 186
Investment Company Portfolio Turnover 22.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $305,172
Total number of portfolio holdings $186
Portfolio turnover rate $22 %
Holdings [Text Block]
CREDIT QUALITY ALLOCATIONS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000008059 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan California Tax Free Bond Fund
Class Name Class I Shares
Trading Symbol JPICX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan California Tax Free Bond Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan California Tax Free Bond Fund
(Class I Shares)		 $22 0.44%
*
This charge is annualized.
Expenses Paid, Amount $ 22
Expense Ratio, Percent 0.44% [74]
Net Assets $ 305,172,000
Holdings Count | Holding 186
Investment Company Portfolio Turnover 22.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $305,172
Total number of portfolio holdings $186
Portfolio turnover rate $22 %
Holdings [Text Block]
CREDIT QUALITY ALLOCATIONS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000205201 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan California Tax Free Bond Fund
Class Name Class R6 Shares
Trading Symbol JCBSX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan California Tax Free Bond Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan California Tax Free Bond Fund
(Class R6 Shares)		 $17 0.34%
*
This charge is annualized.
Expenses Paid, Amount $ 17
Expense Ratio, Percent 0.34% [75]
Net Assets $ 305,172,000
Holdings Count | Holding 186
Investment Company Portfolio Turnover 22.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $305,172
Total number of portfolio holdings $186
Portfolio turnover rate $22 %
Holdings [Text Block]
CREDIT QUALITY ALLOCATIONS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000222400 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan 100% U.S. Treasury Securities Money Market Fund
Class Name Academy Shares
Trading Symbol JACXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan 100% U.S. Treasury Securities Money Market Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at www.jpmorgan.com/academy. You can also request this information by contacting us at 1-646-341-6869 or by sending an e-mail request to funds@academysecurities.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-646-341-6869
Additional Information Email funds@academysecurities.com
Additional Information Website www.jpmorgan.com/academy
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan 100% U.S. Treasury Securities Money Market Fund
(Academy Shares)		 $9 0.17%
*
This charge is annualized.
Expenses Paid, Amount $ 9
Expense Ratio, Percent 0.17% [76]
Net Assets $ 198,326,798,000
Holdings Count | Holding 61
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $198,326,798
Total number of portfolio holdings $61
Holdings [Text Block]
EFFECTIVE MATURITY
(% of total investments)
2–7 calendar days 17.9
8–30 calendar days 31.3
31–60 calendar days 31.2
61–90 calendar days 4.6
91–180 calendar days 12.1
181+ calendar days 2.9
C000008121 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan 100% U.S. Treasury Securities Money Market Fund
Class Name Agency Shares
Trading Symbol VPIXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan 100% U.S. Treasury Securities Money Market Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 1-800-766-7722 or by sending an e-mail request to global_liquidity_funds_services_us@jpmorganfunds.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-800-766-7722
Additional Information Email global_liquidity_funds_services_us@jpmorganfunds.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan 100% U.S. Treasury Securities Money Market Fund
(Agency Shares)		 $13 0.26%
*
This charge is annualized.
Expenses Paid, Amount $ 13
Expense Ratio, Percent 0.26% [77]
Net Assets $ 198,326,798,000
Holdings Count | Holding 61
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $198,326,798
Total number of portfolio holdings $61
Holdings [Text Block]
EFFECTIVE MATURITY
(% of total investments)
2–7 calendar days 17.9
8–30 calendar days 31.3
31–60 calendar days 31.2
61–90 calendar days 4.6
91–180 calendar days 12.1
181+ calendar days 2.9
C000008117 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan 100% U.S. Treasury Securities Money Market Fund
Class Name Capital Shares
Trading Symbol CJTXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan 100% U.S. Treasury Securities Money Market Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 1-800-766-7722 or by sending an e-mail request to global_liquidity_funds_services_us@jpmorganfunds.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-800-766-7722
Additional Information Email global_liquidity_funds_services_us@jpmorganfunds.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan 100% U.S. Treasury Securities Money Market Fund
(Capital Shares)		 $9 0.17%
*
This charge is annualized.
Expenses Paid, Amount $ 9
Expense Ratio, Percent 0.17% [78]
Net Assets $ 198,326,798,000
Holdings Count | Holding 61
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $198,326,798
Total number of portfolio holdings $61
Holdings [Text Block]
EFFECTIVE MATURITY
(% of total investments)
2–7 calendar days 17.9
8–30 calendar days 31.3
31–60 calendar days 31.2
61–90 calendar days 4.6
91–180 calendar days 12.1
181+ calendar days 2.9
C000225256 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan 100% U.S. Treasury Securities Money Market Fund
Class Name Empower Shares
Trading Symbol EJTXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan 100% U.S. Treasury Securities Money Market Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan 100% U.S. Treasury Securities Money Market Fund
(Empower Shares)		 $9 0.17%
*
This charge is annualized.
Expenses Paid, Amount $ 9
Expense Ratio, Percent 0.17% [79]
Net Assets $ 198,326,798,000
Holdings Count | Holding 61
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $198,326,798
Total number of portfolio holdings $61
Holdings [Text Block]
EFFECTIVE MATURITY
(% of total investments)
2–7 calendar days 17.9
8–30 calendar days 31.3
31–60 calendar days 31.2
61–90 calendar days 4.6
91–180 calendar days 12.1
181+ calendar days 2.9
C000217004 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan 100% U.S. Treasury Securities Money Market Fund
Class Name IM Shares
Trading Symbol JSMXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan 100% U.S. Treasury Securities Money Market Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at www.jpmorganfunds.com/jpmfpages/imshares. You can also request this information by contacting us at 1-800-766-7722 or by sending an e-mail request to global_liquidity_funds_services_us@jpmorganfunds.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-800-766-7722
Additional Information Email global_liquidity_funds_services_us@jpmorganfunds.com
Additional Information Website www.jpmorganfunds.com/jpmfpages/imshares
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan 100% U.S. Treasury Securities Money Market Fund
(IM Shares)		 $6 0.12%
*
This charge is annualized.
Expenses Paid, Amount $ 6
Expense Ratio, Percent 0.12% [80]
Net Assets $ 198,326,798,000
Holdings Count | Holding 61
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $198,326,798
Total number of portfolio holdings $61
Holdings [Text Block]
EFFECTIVE MATURITY
(% of total investments)
2–7 calendar days 17.9
8–30 calendar days 31.3
31–60 calendar days 31.2
61–90 calendar days 4.6
91–180 calendar days 12.1
181+ calendar days 2.9
C000008116 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan 100% U.S. Treasury Securities Money Market Fund
Class Name Institutional Class Shares
Trading Symbol JTSXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan 100% U.S. Treasury Securities Money Market Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 1-800-766-7722 or by sending an e-mail request to global_liquidity_funds_services_us@jpmorganfunds.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-800-766-7722
Additional Information Email global_liquidity_funds_services_us@jpmorganfunds.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan 100% U.S. Treasury Securities Money Market Fund
(Institutional Class Shares)		 $11 0.21%
*
This charge is annualized.
Expenses Paid, Amount $ 11
Expense Ratio, Percent 0.21% [81]
Net Assets $ 198,326,798,000
Holdings Count | Holding 61
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $198,326,798
Total number of portfolio holdings $61
Holdings [Text Block]
EFFECTIVE MATURITY
(% of total investments)
2–7 calendar days 17.9
8–30 calendar days 31.3
31–60 calendar days 31.2
61–90 calendar days 4.6
91–180 calendar days 12.1
181+ calendar days 2.9
C000008118 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan 100% U.S. Treasury Securities Money Market Fund
Class Name Morgan Shares
Trading Symbol HTSXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan 100% U.S. Treasury Securities Money Market Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan 100% U.S. Treasury Securities Money Market Fund
(Morgan Shares)		 $29 0.57%
*
This charge is annualized.
Expenses Paid, Amount $ 29
Expense Ratio, Percent 0.57% [82]
Net Assets $ 198,326,798,000
Holdings Count | Holding 61
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $198,326,798
Total number of portfolio holdings $61
Holdings [Text Block]
EFFECTIVE MATURITY
(% of total investments)
2–7 calendar days 17.9
8–30 calendar days 31.3
31–60 calendar days 31.2
61–90 calendar days 4.6
91–180 calendar days 12.1
181+ calendar days 2.9
C000008119 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan 100% U.S. Treasury Securities Money Market Fund
Class Name Premier Shares
Trading Symbol VHPXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan 100% U.S. Treasury Securities Money Market Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 1-800-766-7722 or by sending an e-mail request to global_liquidity_funds_services_us@jpmorganfunds.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-800-766-7722
Additional Information Email global_liquidity_funds_services_us@jpmorganfunds.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan 100% U.S. Treasury Securities Money Market Fund
(Premier Shares)		 $21 0.42%
*
This charge is annualized.
Expenses Paid, Amount $ 21
Expense Ratio, Percent 0.42% [83]
Net Assets $ 198,326,798,000
Holdings Count | Holding 61
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $198,326,798
Total number of portfolio holdings $61
Holdings [Text Block]
EFFECTIVE MATURITY
(% of total investments)
2–7 calendar days 17.9
8–30 calendar days 31.3
31–60 calendar days 31.2
61–90 calendar days 4.6
91–180 calendar days 12.1
181+ calendar days 2.9
C000008120 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan 100% U.S. Treasury Securities Money Market Fund
Class Name Reserve Shares
Trading Symbol RJTXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan 100% U.S. Treasury Securities Money Market Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 1-800-766-7722 or by sending an e-mail request to global_liquidity_funds_services_us@jpmorganfunds.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-800-766-7722
Additional Information Email global_liquidity_funds_services_us@jpmorganfunds.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan 100% U.S. Treasury Securities Money Market Fund
(Reserve Shares)		 $34 0.67%
*
This charge is annualized.
Expenses Paid, Amount $ 34
Expense Ratio, Percent 0.67% [84]
Net Assets $ 198,326,798,000
Holdings Count | Holding 61
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $198,326,798
Total number of portfolio holdings $61
Holdings [Text Block]
EFFECTIVE MATURITY
(% of total investments)
2–7 calendar days 17.9
8–30 calendar days 31.3
31–60 calendar days 31.2
61–90 calendar days 4.6
91–180 calendar days 12.1
181+ calendar days 2.9
C000210341 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan New York Municipal Money Market Fund
Class Name Agency Shares
Trading Symbol JONXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan New York Municipal Money Market Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 1-800-766-7722 or by sending an e-mail request to global_liquidity_funds_services_us@jpmorganfunds.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-800-766-7722
Additional Information Email global_liquidity_funds_services_us@jpmorganfunds.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan New York Municipal Money Market Fund
(Agency Shares)		 $13 0.26%
*
This charge is annualized.
Expenses Paid, Amount $ 13
Expense Ratio, Percent 0.26% [85]
Net Assets $ 2,197,380,000
Holdings Count | Holding 289
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $2,197,380
Total number of portfolio holdings $289
Holdings [Text Block]
EFFECTIVE MATURITY
(% of total investments)
2–7 calendar days 19.6
8–30 calendar days 62.3
31–60 calendar days 3.9
61–90 calendar days 0.8
91–180 calendar days 2.6
181+ calendar days 10.8
C000210340 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan New York Municipal Money Market Fund
Class Name Institutional Class Shares
Trading Symbol JGNXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan New York Municipal Money Market Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 1-800-766-7722 or by sending an e-mail request to global_liquidity_funds_services_us@jpmorganfunds.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-800-766-7722
Additional Information Email global_liquidity_funds_services_us@jpmorganfunds.com
Additional Information Website www.jpmorganfunds.com/funddocuments.
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan New York Municipal Money Market Fund
(Institutional Class Shares)		 $11 0.21%
*
This charge is annualized.
Expenses Paid, Amount $ 11
Expense Ratio, Percent 0.21% [86]
Net Assets $ 2,197,380,000
Holdings Count | Holding 289
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $2,197,380
Total number of portfolio holdings $289
Holdings [Text Block]
EFFECTIVE MATURITY
(% of total investments)
2–7 calendar days 19.6
8–30 calendar days 62.3
31–60 calendar days 3.9
61–90 calendar days 0.8
91–180 calendar days 2.6
181+ calendar days 10.8
C000008128 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan New York Municipal Money Market Fund
Class Name Morgan Shares
Trading Symbol VNYXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan New York Municipal Money Market Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan New York Municipal Money Market Fund
(Morgan Shares)		 $30 0.59%
*
This charge is annualized.
Expenses Paid, Amount $ 30
Expense Ratio, Percent 0.59% [87]
Net Assets $ 2,197,380,000
Holdings Count | Holding 289
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $2,197,380
Total number of portfolio holdings $289
Holdings [Text Block]
EFFECTIVE MATURITY
(% of total investments)
2–7 calendar days 19.6
8–30 calendar days 62.3
31–60 calendar days 3.9
61–90 calendar days 0.8
91–180 calendar days 2.6
181+ calendar days 10.8
C000165406 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan New York Municipal Money Market Fund
Class Name Premier Shares
Trading Symbol JNPXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan New York Municipal Money Market Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 1-800-766-7722 or by sending an e-mail request to global_liquidity_funds_services_us@jpmorganfunds.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-800-766-7722
Additional Information Email global_liquidity_funds_services_us@jpmorganfunds.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan New York Municipal Money Market Fund
(Premier Shares)		 $22 0.43%
*
This charge is annualized.
Expenses Paid, Amount $ 22
Expense Ratio, Percent 0.43% [88]
Net Assets $ 2,197,380,000
Holdings Count | Holding 289
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $2,197,380
Total number of portfolio holdings $289
Holdings [Text Block]
EFFECTIVE MATURITY
(% of total investments)
2–7 calendar days 19.6
8–30 calendar days 62.3
31–60 calendar days 3.9
61–90 calendar days 0.8
91–180 calendar days 2.6
181+ calendar days 10.8
C000008129 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan New York Municipal Money Market Fund
Class Name Reserve Shares
Trading Symbol JNYXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan New York Municipal Money Market Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 1-800-766-7722 or by sending an e-mail request to global_liquidity_funds_services_us@jpmorganfunds.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-800-766-7722
Additional Information Email global_liquidity_funds_services_us@jpmorganfunds.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan New York Municipal Money Market Fund
(Reserve Shares)		 $35 0.69%
*
This charge is annualized.
Expenses Paid, Amount $ 35
Expense Ratio, Percent 0.69% [89]
Net Assets $ 2,197,380,000
Holdings Count | Holding 289
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $2,197,380
Total number of portfolio holdings $289
Holdings [Text Block]
EFFECTIVE MATURITY
(% of total investments)
2–7 calendar days 19.6
8–30 calendar days 62.3
31–60 calendar days 3.9
61–90 calendar days 0.8
91–180 calendar days 2.6
181+ calendar days 10.8
C000073383 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan New York Municipal Money Market Fund
Class Name Service Shares
Trading Symbol JNVXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan New York Municipal Money Market Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 1-800-766-7722 or by sending an e-mail request to global_liquidity_funds_services_us@jpmorganfunds.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-800-766-7722
Additional Information Email global_liquidity_funds_services_us@jpmorganfunds.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan New York Municipal Money Market Fund
(Service Shares)		 $52 1.04%
*
This charge is annualized.
Expenses Paid, Amount $ 52
Expense Ratio, Percent 1.04% [90]
Net Assets $ 2,197,380,000
Holdings Count | Holding 289
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $2,197,380
Total number of portfolio holdings $289
Holdings [Text Block]
EFFECTIVE MATURITY
(% of total investments)
2–7 calendar days 19.6
8–30 calendar days 62.3
31–60 calendar days 3.9
61–90 calendar days 0.8
91–180 calendar days 2.6
181+ calendar days 10.8
C000116841 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Global Bond Opportunities Fund
Class Name Class A Shares
Trading Symbol GBOAX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Global Bond Opportunities Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Global Bond Opportunities Fund
(Class A Shares)		 $46 0.89%
*
This charge is annualized.
Expenses Paid, Amount $ 46
Expense Ratio, Percent 0.89% [91]
Net Assets $ 3,521,239,000
Holdings Count | Holding 1,513
Investment Company Portfolio Turnover 89.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $3,521,239
Total number of portfolio holdings $1,513
Portfolio turnover rate $89 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000116842 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Global Bond Opportunities Fund
Class Name Class C Shares
Trading Symbol GBOCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Global Bond Opportunities Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Global Bond Opportunities Fund
(Class C Shares)		 $66 1.29%
*
This charge is annualized.
Expenses Paid, Amount $ 66
Expense Ratio, Percent 1.29% [92]
Net Assets $ 3,521,239,000
Holdings Count | Holding 1,513
Investment Company Portfolio Turnover 89.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $3,521,239
Total number of portfolio holdings $1,513
Portfolio turnover rate $89 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000116843 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Global Bond Opportunities Fund
Class Name Class I Shares
Trading Symbol GBOSX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Global Bond Opportunities Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Global Bond Opportunities Fund
(Class I Shares)		 $33 0.64%
*
This charge is annualized.
Expenses Paid, Amount $ 33
Expense Ratio, Percent 0.64% [93]
Net Assets $ 3,521,239,000
Holdings Count | Holding 1,513
Investment Company Portfolio Turnover 89.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $3,521,239
Total number of portfolio holdings $1,513
Portfolio turnover rate $89 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000116844 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Global Bond Opportunities Fund
Class Name Class R6 Shares
Trading Symbol GBONX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Global Bond Opportunities Fund for the period March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on a hypothetical $10,000 investment)
Fund (Class) Costs of a
$10,000 investment		 Costs paid as a percentage
of a $10,000 investment*
JPMorgan Global Bond Opportunities Fund
(Class R6 Shares)		 $25 0.49%
*
This charge is annualized.
Expenses Paid, Amount $ 25
Expense Ratio, Percent 0.49% [94]
Net Assets $ 3,521,239,000
Holdings Count | Holding 1,513
Investment Company Portfolio Turnover 89.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets (000's) $3,521,239
Total number of portfolio holdings $1,513
Portfolio turnover rate $89 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
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[58] This charge is annualized.
[59] This charge is annualized.
[60] This charge is annualized.
[61] This charge is annualized.
[62] This charge is annualized.
[63] This charge is annualized.
[64] This charge is annualized.
[65] This charge is annualized.
[66] This charge is annualized.
[67] This charge is annualized.
[68] This charge is annualized.
[69] This charge is annualized.
[70] This charge is annualized.
[71] This charge is annualized.
[72] This charge is annualized.
[73] This charge is annualized.
[74] This charge is annualized.
[75] This charge is annualized.
[76] This charge is annualized.
[77] This charge is annualized.
[78] This charge is annualized.
[79] This charge is annualized.
[80] This charge is annualized.
[81] This charge is annualized.
[82] This charge is annualized.
[83] This charge is annualized.
[84] This charge is annualized.
[85] This charge is annualized.
[86] This charge is annualized.
[87] This charge is annualized.
[88] This charge is annualized.
[89] This charge is annualized.
[90] This charge is annualized.
[91] This charge is annualized.
[92] This charge is annualized.
[93] This charge is annualized.
[94] This charge is annualized.