Shareholder Report, Average Annual Return (Details) 1014057_Western Asset Bond ETF_Single Class_TSR Annual {Single Class} |
12 Months Ended | 30 Months Ended |
|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2026 |
|
| Western Asset Bond ETF | ||
| Average Annual Return [Line Items] | ||
| Line Graph and Table Measure Name | Western Asset Bond ETF (NAV) | |
| Average Annual Return, Percent | 4.75% | 5.88% |
| Bloomberg U.S. Aggregate Index [Member] | ||
| Average Annual Return [Line Items] | ||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Index | |
| Average Annual Return, Percent | 4.35% | 5.48% |