S000071712 [Member] Expense Example - Putnam Sustainable Leaders ETF - C000227198	Aug. 31, 2025 USD ($)
Prospectus [Line Items]
Expense Example, with Redemption, 1 Year	$ 60
Expense Example, with Redemption, 3 Years	191
Expense Example, with Redemption, 5 Years	334
Expense Example, with Redemption, 10 Years	$ 749

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