v3.26.1
Shareholder Report, Line Graph (Details) 1014065_Putnam PanAgora ESG International Equity ETF_Single Class_TSR Annual {Single Class} - USD ($)
12 Months Ended
Oct. 31, 2025
Apr. 30, 2025
Oct. 31, 2024
Apr. 30, 2024
Oct. 31, 2023
Apr. 30, 2023
Jan. 19, 2023
Apr. 30, 2026
Putnam PanAgora ESG International Equity ETF                
Account Value [Line Items]                
Line Graph and Table Measure Name               Putnam PanAgora ESG International Equity ETF (NAV)
Accumulated Value $ 15,448 $ 13,536 $ 12,245 $ 11,485 $ 9,740 $ 10,420 $ 10,000 $ 16,529
MSCI All Country World ex-U.S. Index-NR                
Account Value [Line Items]                
Line Graph and Table Measure Name               MSCI All Country World ex-U.S. Index-NR
Accumulated Value 14,510 12,306 11,615 10,994 9,342 10,057 10,000 $ 16,268
MSCI EAFE Index-NR                
Account Value [Line Items]                
Line Graph and Table Measure Name               MSCI EAFE Index-NR
Accumulated Value $ 14,378 $ 12,692 $ 11,687 $ 11,275 $ 9,504 $ 10,317 $ 10,000 $ 15,813