Shareholder Report, Line Graph (Details) 1014058_Franklin Focused Growth 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 |
Mar. 31, 2017 |
Apr. 13, 2016 |
Mar. 31, 2026 |
|
| Franklin Focused Growth ETF | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Franklin Focused Growth ETF (NAV) | ||||||||||
| Accumulated Value | $ 37,902 | $ 36,827 | $ 24,993 | $ 29,694 | $ 29,618 | $ 17,797 | $ 17,152 | $ 14,974 | $ 11,682 | $ 10,000 | $ 44,535 |
| Russell 3000 Index [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Russell 3000 Index | ||||||||||
| Accumulated Value | 30,431 | 28,382 | 21,952 | 24,012 | 21,454 | 13,200 | 14,526 | 13,355 | 11,734 | 10,000 | $ 35,935 |
| Russell 1000 Growth Index [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Russell 1000 Growth Index | ||||||||||
| Accumulated Value | $ 40,247 | $ 37,348 | $ 26,870 | $ 30,157 | $ 26,229 | $ 16,117 | $ 15,971 | $ 14,165 | $ 11,682 | $ 10,000 | $ 47,818 |