Label	Element	Value
Putnam PanAgora ESG Emerging Markets Equity ETF | Other Countries [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	0.40%
Putnam PanAgora ESG Emerging Markets Equity ETF | Cash and Equivalents [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	0.30%
Putnam PanAgora ESG Emerging Markets Equity ETF | China
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	31.50%
Putnam PanAgora ESG Emerging Markets Equity ETF | Taiwan
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	18.00%
Putnam PanAgora ESG Emerging Markets Equity ETF | India
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	15.20%
Putnam PanAgora ESG Emerging Markets Equity ETF | South Korea
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	10.30%
Putnam PanAgora ESG Emerging Markets Equity ETF | South Africa
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	4.20%
Putnam PanAgora ESG Emerging Markets Equity ETF | United Arab Emirates
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	3.40%
Putnam PanAgora ESG Emerging Markets Equity ETF | Brazil
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	3.20%
Putnam PanAgora ESG Emerging Markets Equity ETF | Saudi Arabia
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	3.00%
Putnam PanAgora ESG Emerging Markets Equity ETF | Mexico
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	2.40%
Putnam PanAgora ESG Emerging Markets Equity ETF | Indonesia
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	2.10%
Putnam PanAgora ESG Emerging Markets Equity ETF | Thailand
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	1.60%
Putnam PanAgora ESG Emerging Markets Equity ETF | Poland
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	1.50%
Putnam PanAgora ESG Emerging Markets Equity ETF | United Kingdom
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	1.30%
Putnam PanAgora ESG Emerging Markets Equity ETF | Chile
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	1.10%
Putnam PanAgora ESG Emerging Markets Equity ETF | Malaysia
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	0.50%