Shareholder Report, Average Annual Return (Details) LMF3600_Western Asset Intermediate Bond Fund_Class I_TSR Annual {Class I} |
12 Months Ended | 60 Months Ended | 120 Months Ended |
|---|---|---|---|
May 31, 2026 |
May 31, 2026 |
May 31, 2026 |
|
| Class I | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Class I | ||
| Average Annual Return, Percent | 4.24% | 0.61% | 2.14% |
| Bloomberg U.S. Aggregate Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Index | ||
| Average Annual Return, Percent | 5.13% | 0.17% | 1.70% |
| Bloomberg Intermediate U.S. Government/Credit Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Bloomberg Intermediate U.S. Government/Credit Index | ||
| Average Annual Return, Percent | 4.13% | 1.22% | 2.06% |