JPMorgan California Tax Free Bond Fund Average Annual Total Returns - R6 Shares [Member] |
12 Months Ended | 60 Months Ended | 120 Months Ended | ||||||
|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2024 |
Dec. 31, 2024 |
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| BLOOMBERG US MUNICIPAL INDEX(Reflects No Deduction for Fees, Expenses, or Taxes)[Member] | |||||||||
| Prospectus [Line Items] | |||||||||
| Average Annual Return, Percent | [1],[2] | 1.05% | 0.99% | 2.25% | |||||
| BLOOMBERG CALIFORNIA MUNICIPAL BOND INDEX(Reflects No Deduction for Fees, Expenses, or Taxes)[Member] | |||||||||
| Prospectus [Line Items] | |||||||||
| Average Annual Return, Percent | [3] | 1.02% | 0.96% | 2.23% | |||||
| BLOOMBERG LB CALIFORNIA 1-17 YEAR MUNI INDEX(Reflects No Deduction for Fees, Expenses, or Taxes)[Member] | |||||||||
| Prospectus [Line Items] | |||||||||
| Average Annual Return, Percent | 0.83% | 1.00% | 1.94% | ||||||
| Class R6 | |||||||||
| Prospectus [Line Items] | |||||||||
| Average Annual Return, Percent | 1.51% | 0.77% | 1.61% | ||||||
| Class R6 | After Taxes on Distributions | |||||||||
| Prospectus [Line Items] | |||||||||
| Average Annual Return, Percent | 1.50% | 0.75% | 1.59% | ||||||
| Class R6 | After Taxes on Distributions and Sales | |||||||||
| Prospectus [Line Items] | |||||||||
| Average Annual Return, Percent | 2.15% | 1.09% | 1.79% | ||||||
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