v3.26.1
Shareholder Report, Average Annual Return (Details) 1014023_Franklin FTSE Eurozone ETF_Single Class_TSR Annual {Single Class}
12 Months Ended 60 Months Ended 101 Months Ended
Mar. 31, 2026
Mar. 31, 2026
Mar. 31, 2026
Franklin FTSE Eurozone ETF      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Franklin FTSE Eurozone ETF (NAV)    
Average Annual Return, Percent 20.09% 11.43% 9.50%
FTSE Developed Eurozone Index-NR [Member]      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name FTSE Developed Eurozone Index-NR    
Average Annual Return, Percent 19.80% 9.09% 7.02%
Linked FTSE Developed Eurozone Index-NR [Member]      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Linked FTSE Developed Eurozone Index-NR    
Average Annual Return, Percent [1] 19.80% 11.26% 9.37%
[1]
The Linked FTSE Developed Eurozone Index-NR measures the performance of the Fund’s previous underlying index (the FTSE Developed Europe Capped Hedged Index-NR) from Fund inception through July 31, 2023 followed by the performance of the Fund’s Underlying Index thereafter.