Shareholder Report, Line Graph (Details) LMF3600_Western Asset Intermediate Bond Fund_Class A_TSR Annual {Class A} - USD ($) |
12 Months Ended | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
May 31, 2025 |
May 31, 2024 |
May 31, 2023 |
May 31, 2022 |
May 31, 2021 |
May 31, 2020 |
May 31, 2019 |
May 31, 2018 |
May 31, 2017 |
May 31, 2016 |
May 31, 2026 |
|
| Class A | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Class A (with sales charge) | ||||||||||
| Accumulated Value | $ 11,035 | $ 10,368 | $ 10,139 | $ 10,290 | $ 11,263 | $ 10,987 | $ 10,320 | $ 9,799 | $ 9,826 | $ 9,575 | $ 11,478 |
| Bloomberg U.S. Aggregate Index | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Index | ||||||||||
| Accumulated Value | 11,258 | 10,676 | 10,538 | 10,769 | 11,734 | 11,781 | 10,768 | 10,120 | 10,158 | 10,000 | $ 11,836 |
| Bloomberg Intermediate U.S. Government/Credit Index | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Bloomberg Intermediate U.S. Government/Credit Index | ||||||||||
| Accumulated Value | $ 11,772 | $ 11,058 | $ 10,771 | $ 10,828 | $ 11,539 | $ 11,456 | $ 10,647 | $ 10,070 | $ 10,140 | $ 10,000 | $ 12,257 |