v3.25.2
S000000716 [Member] Expense Example, No Redemption - Western Asset High Yield Fund
May 31, 2025
USD ($)
Class IS  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year $ 66
Expense Example, No Redemption, 3 Years 225
Expense Example, No Redemption, 5 Years 398
Expense Example, No Redemption, 10 Years 899
Class A  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 472
Expense Example, No Redemption, 3 Years 678
Expense Example, No Redemption, 5 Years 901
Expense Example, No Redemption, 10 Years 1,541
Class C  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 178
Expense Example, No Redemption, 3 Years 552
Expense Example, No Redemption, 5 Years 950
Expense Example, No Redemption, 10 Years 1,862
Class R  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 132
Expense Example, No Redemption, 3 Years 456
Expense Example, No Redemption, 5 Years 804
Expense Example, No Redemption, 10 Years 1,785
Class I  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 77
Expense Example, No Redemption, 3 Years 251
Expense Example, No Redemption, 5 Years 439
Expense Example, No Redemption, 10 Years $ 985