Shareholder Report, Average Annual Return (Details) 1014049_Franklin Intelligent Machines ETF_Single Class_TSR Annual {Single Class} |
12 Months Ended | 60 Months Ended | 73 Months Ended |
|---|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2026 |
Mar. 31, 2026 |
|
| Franklin Intelligent Machines ETF | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Franklin Intelligent Machines ETF (NAV) | ||
| Average Annual Return, Percent | 55.55% | 15.37% | 23.02% |
| Russell 3000 Index [Member] | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Russell 3000 Index | ||
| Average Annual Return, Percent | 18.09% | 10.87% | 13.94% |