v3.26.1
Shareholder Report, Average Annual Return (Details) 1014028_Franklin FTSE Switzerland ETF_Single Class_TSR Annual {Single Class}
12 Months Ended 60 Months Ended 98 Months Ended
Mar. 31, 2026
Mar. 31, 2026
Mar. 31, 2026
Franklin FTSE Switzerland ETF      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Franklin FTSE Switzerland ETF (NAV)    
Average Annual Return, Percent 15.04% 7.93% 8.99%
FTSE Switzerland Index-NR [Member]      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name FTSE Switzerland Index-NR    
Average Annual Return, Percent 15.20% 7.60% 8.46%
FTSE Switzerland Capped Index-NR [Member]      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name FTSE Switzerland Capped Index-NR    
Average Annual Return, Percent 14.81% 7.59% 8.55%