Shareholder Report, Average Annual Return (Details) 1014060_Putnam Focused Large Cap Growth ETF_Single Class_TSR Annual {Single Class} |
12 Months Ended | 60 Months Ended | 63 Months Ended |
|---|---|---|---|
Aug. 31, 2026 |
Aug. 31, 2026 |
Aug. 31, 2026 |
|
| Putnam Focused Large Cap Growth ETF | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Putnam Focused Large Cap Growth ETF (NAV) | ||
| Average Annual Return, Percent | 10.41% | 10.28% | 12.77% |
| Russell 3000 Index [Member] | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Russell 3000 Index | ||
| Average Annual Return, Percent | 20.10% | 11.80% | 12.77% |
| Russell 1000 Growth Index [Member] | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Russell 1000 Growth Index | ||
| Average Annual Return, Percent | 10.82% | 11.88% | 14.05% |