Shareholder Report, Line Graph (Details) 9046791_Putnam International Stock ETF_Single Class_TSR Annual {Single Class} - USD ($) |
12 Months Ended | ||||||
|---|---|---|---|---|---|---|---|
Feb. 28, 2026 |
Jan. 31, 2026 |
Dec. 31, 2025 |
Nov. 30, 2025 |
Oct. 31, 2025 |
Oct. 21, 2025 |
Mar. 31, 2026 |
|
| Putnam International Stock ETF | |||||||
| Account Value [Line Items] | |||||||
| Line Graph and Table Measure Name | Putnam International Stock ETF (NAV) | ||||||
| Accumulated Value | $ 10,793 | $ 10,445 | $ 9,904 | $ 9,884 | $ 9,936 | $ 10,000 | $ 9,540 |
| MSCI All Country World ex-U.S. Index-NR [Member] | |||||||
| Account Value [Line Items] | |||||||
| Line Graph and Table Measure Name | MSCI All Country World ex-U.S. Index-NR | ||||||
| Accumulated Value | 11,461 | 10,913 | 10,297 | 9,997 | 10,000 | 10,000 | $ 10,224 |
| MSCI All Country World ex-US Growth Index-NR [Member] | |||||||
| Account Value [Line Items] | |||||||
| Line Graph and Table Measure Name | MSCI All Country World ex-US Growth Index-NR | ||||||
| Accumulated Value | $ 10,987 | $ 10,568 | $ 10,015 | $ 9,820 | $ 10,000 | $ 10,000 | $ 9,652 |