Shareholder Report, Line Graph (Details) 9046789_Franklin Multisector Income ETF_Single Class_TSR Annual {Single Class} - USD ($) |
12 Months Ended | ||||||||
|---|---|---|---|---|---|---|---|---|---|
Feb. 28, 2026 |
Jan. 31, 2026 |
Dec. 31, 2025 |
Nov. 30, 2025 |
Oct. 31, 2025 |
Sep. 30, 2025 |
Aug. 31, 2025 |
Aug. 26, 2025 |
Mar. 31, 2026 |
|
| Franklin Multisector Income ETF | |||||||||
| Account Value [Line Items] | |||||||||
| Line Graph and Table Measure Name | Franklin Multisector Income ETF (NAV) | ||||||||
| Accumulated Value | $ 10,394 | $ 10,292 | $ 10,260 | $ 10,213 | $ 10,147 | $ 10,104 | $ 10,072 | $ 10,000 | $ 10,266 |
| Bloomberg U.S. Aggregate Index [Member] | |||||||||
| Account Value [Line Items] | |||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Index | ||||||||
| Accumulated Value | $ 10,399 | $ 10,231 | $ 10,220 | $ 10,235 | $ 10,172 | $ 10,109 | $ 10,000 | $ 10,000 | $ 10,216 |