v3.26.1
Shareholder Report, Average Annual Return (Details) 1014033_Franklin FTSE Japan 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 Japan ETF      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Franklin FTSE Japan ETF (NAV)    
Average Annual Return, Percent 26.40% 6.53% 6.46%
FTSE Japan Index-NR (USD) [Member]      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name FTSE Japan Index-NR (USD)    
Average Annual Return, Percent 26.36% 6.52% 6.41%
FTSE Japan Capped Index-NR [Member]      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name FTSE Japan Capped Index-NR    
Average Annual Return, Percent 26.36% 6.52% 6.41%