v3.26.3
S000000716 [Member] Expense Example, No Redemption - Western Asset High Yield Fund
May 31, 2026
USD ($)
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
Class IS  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 66
Expense Example, No Redemption, 3 Years 234
Expense Example, No Redemption, 5 Years 416
Expense Example, No Redemption, 10 Years 943
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 176
Expense Example, No Redemption, 3 Years 546
Expense Example, No Redemption, 5 Years 940
Expense Example, No Redemption, 10 Years 1,847
Class R  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 132
Expense Example, No Redemption, 3 Years 460
Expense Example, No Redemption, 5 Years 812
Expense Example, No Redemption, 10 Years $ 1,803