JPMorgan Equity Premium Income Fund Average Annual Total Returns - R5 R6 Shares [Member] |
12 Months Ended | 58 Months Ended | 60 Months Ended | 88 Months Ended | |
|---|---|---|---|---|---|
Jun. 30, 2026 |
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
|
| S&P 500 INDEX(Reflects No Deduction for Fees, Expenses, or Taxes)[Member] | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 17.88% | 14.55% | 14.42% | 14.25% | |
| ICE BOFA 3-MONTH US TREASURY BILL INDEX(Reflects No Deduction for Fees, Expenses, or Taxes)[Member] | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 4.18% | 3.29% | 3.18% | 2.66% | |
| Class R5 | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 7.90% | 9.28% | 8.87% | ||
| Class R6 | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 8.02% | 9.38% | 8.97% | ||
| Performance Inception Date | Aug. 31, 2018 | ||||
| Class R6 | After Taxes on Distributions | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 4.62% | 5.71% | 5.18% | ||
| Class R6 | After Taxes on Distributions and Sales | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 4.89% | 5.70% | 5.29% |