v3.26.1
Shareholder Report, Line Graph (Details) 1014056_Franklin Income Focus ETF_Single Class_TSR Annual {Single Class} - USD ($)
12 Months Ended
Dec. 31, 2025
Sep. 30, 2025
Jun. 30, 2025
Mar. 31, 2025
Dec. 31, 2024
Sep. 30, 2024
Jun. 30, 2024
Mar. 31, 2024
Dec. 31, 2023
Sep. 30, 2023
Jun. 30, 2023
Jun. 06, 2023
Mar. 31, 2026
Franklin Income Focus ETF                          
Account Value [Line Items]                          
Line Graph and Table Measure Name                         Franklin Income Focus ETF (NAV)
Accumulated Value $ 12,790 $ 12,472 $ 12,011 $ 11,691 $ 11,335 $ 11,627 $ 10,924 $ 10,840 $ 10,606 $ 9,827 $ 10,100 $ 10,000 $ 13,287
Russell 3000 Index [Member]                          
Account Value [Line Items]                          
Line Graph and Table Measure Name                         Russell 3000 Index
Accumulated Value 15,725 15,356 14,196 12,790 13,424 13,079 12,313 11,929 10,843 9,675 10,000 10,000 $ 15,103
Blended Benchmark [Member]                          
Account Value [Line Items]                          
Line Graph and Table Measure Name                         Blended Benchmark
Accumulated Value 12,995 12,829 12,358 12,182 11,807 12,149 11,313 11,376 10,922 10,137 10,318 10,000 $ 13,358
Bloomberg U.S. Aggregate Index [Member]                          
Account Value [Line Items]                          
Line Graph and Table Measure Name                         Bloomberg U.S. Aggregate Index
Accumulated Value $ 11,230 $ 11,108 $ 10,887 $ 10,757 $ 10,466 $ 10,796 $ 10,263 $ 10,256 $ 10,337 $ 9,677 $ 10,000 $ 10,000 $ 11,225