JPMorgan Ultra-Short Municipal Fund Average Annual Total Returns - A I Shares [Member] |
12 Months Ended | 60 Months Ended | 115 Months Ended | |
|---|---|---|---|---|
Feb. 28, 2026 |
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
|
| BLOOMBERG US MUNICIPAL INDEX(Reflects No Deduction for Fees, Expenses, or Taxes)[Member] | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 4.25% | 0.80% | 2.16% | |
| BLOOMBERG 1 YEAR MUNICIPAL BOND INDEX(Reflects No Deduction for Fees, Expenses, or Taxes)[Member] | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 3.47% | 1.73% | 1.60% | |
| Class A | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 0.78% | 1.20% | 1.09% | |
| Class I | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 3.21% | 1.83% | 1.53% | |
| Performance Inception Date | May 31, 2016 | |||
| Class I | After Taxes on Distributions | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 3.21% | 1.82% | 1.52% | |
| Class I | After Taxes on Distributions and Sales | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 3.09% | 1.85% | 1.51% |