v3.25.2
S000000711 [Member] Expense Example, No Redemption - Western Asset Intermediate Bond Fund
May 31, 2025
USD ($)
Class I  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year $ 59
Expense Example, No Redemption, 3 Years 186
Expense Example, No Redemption, 5 Years 323
Expense Example, No Redemption, 10 Years 725
Class IS  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 46
Expense Example, No Redemption, 3 Years 151
Expense Example, No Redemption, 5 Years 266
Expense Example, No Redemption, 10 Years 601
CLASS A  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 453
Expense Example, No Redemption, 3 Years 618
Expense Example, No Redemption, 5 Years 798
Expense Example, No Redemption, 10 Years 1,317
CLASS C  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 159
Expense Example, No Redemption, 3 Years 493
Expense Example, No Redemption, 5 Years 851
Expense Example, No Redemption, 10 Years 1,650
CLASS R  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 117
Expense Example, No Redemption, 3 Years 376
Expense Example, No Redemption, 5 Years 655
Expense Example, No Redemption, 10 Years $ 1,450