v3.26.1
Label Element Value
Putnam BDC Income ETF | Investments in Underlying Funds [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Total Investments oef_PctOfTotalInv 99.20%
Putnam BDC Income ETF | Short-Term Investments [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Total Investments oef_PctOfTotalInv 0.80%