Shareholder Report, Line Graph (Details) 1014022_Franklin FTSE Asia Ex Japan 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 |
Feb. 06, 2018 |
Mar. 31, 2026 |
|
| Franklin FTSE Asia Ex Japan ETF | ||||||||||
| Account Value [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Franklin FTSE Asia Ex Japan ETF (NAV) | |||||||||
| Accumulated Value | $ 11,694 | $ 10,560 | $ 10,150 | $ 11,167 | $ 12,886 | $ 8,148 | $ 9,461 | $ 9,979 | $ 10,000 | $ 15,003 |
| FTSE Asia Pacific ex Japan Australia and New Zealand Index-NR [Member] | ||||||||||
| Account Value [Line Items] | ||||||||||
| Line Graph and Table Measure Name | FTSE Asia Pacific ex Japan Australia and New Zealand Index-NR | |||||||||
| Accumulated Value | 11,798 | 10,638 | 10,099 | 11,108 | 12,737 | 8,008 | 9,298 | 9,830 | 10,000 | $ 15,124 |
| FTSE Asia ex Japan Capped Index-NR [Member] | ||||||||||
| Account Value [Line Items] | ||||||||||
| Line Graph and Table Measure Name | FTSE Asia ex Japan Capped Index-NR | |||||||||
| Accumulated Value | $ 11,827 | $ 10,634 | $ 10,124 | $ 11,135 | $ 12,769 | $ 8,031 | $ 9,324 | $ 9,815 | $ 10,000 | $ 15,161 |