Shareholder Report, Average Annual Return (Details) 9046791_Putnam International Stock ETF_Single Class_TSR Annual {Single Class} |
5 Months Ended | 12 Months Ended |
|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2026 |
|
| Putnam International Stock ETF | ||
| Average Annual Return [Line Items] | ||
| Line Graph and Table Measure Name | Putnam International Stock ETF (NAV) | |
| Average Annual Return, Percent | (4.60%) | |
| MSCI All Country World ex-U.S. Index-NR [Member] | ||
| Average Annual Return [Line Items] | ||
| Line Graph and Table Measure Name | MSCI All Country World ex-U.S. Index-NR | |
| Average Annual Return, Percent | 2.34% | |
| MSCI All Country World ex-US Growth Index-NR [Member] | ||
| Average Annual Return [Line Items] | ||
| Line Graph and Table Measure Name | MSCI All Country World ex-US Growth Index-NR | |
| Average Annual Return, Percent | 7.23% |