v3.26.1
Shareholder Report, Line Graph (Details) 1014036_Franklin FTSE China ETF_Single Class_TSR Annual {Single Class} - USD ($)
12 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2023
Mar. 31, 2022
Mar. 31, 2021
Mar. 31, 2020
Mar. 31, 2019
Mar. 31, 2018
Nov. 02, 2017
Mar. 31, 2026
Franklin FTSE China ETF                    
Account Value [Line Items]                    
Line Graph and Table Measure Name                   Franklin FTSE China ETF (NAV)
Accumulated Value $ 9,883 $ 7,095 $ 8,626 $ 9,145 $ 13,376 $ 9,246 $ 9,798 $ 10,417 $ 10,000 $ 10,466
FTSE China Index-NR [Member]                    
Account Value [Line Items]                    
Line Graph and Table Measure Name                   FTSE China Index-NR
Accumulated Value 9,916 7,114 8,619 9,140 13,350 9,199 9,727 10,378 10,000 $ 10,526
FTSE China Capped Index-NR [Member]                    
Account Value [Line Items]                    
Line Graph and Table Measure Name                   FTSE China Capped Index-NR
Accumulated Value $ 9,984 $ 7,153 $ 8,678 $ 9,203 $ 13,442 $ 9,262 $ 9,794 $ 10,394 $ 10,000 $ 10,599