v3.26.3
S000000711 [Member] Expense Example - Western Asset Intermediate Bond Fund
May 31, 2026
USD ($)
Class I  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 67
Expense Example, with Redemption, 3 Years 210
Expense Example, with Redemption, 5 Years 367
Expense Example, with Redemption, 10 Years 822
Class IS  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 47
Expense Example, with Redemption, 3 Years 169
Expense Example, with Redemption, 5 Years 302
Expense Example, with Redemption, 10 Years 691
Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 460
Expense Example, with Redemption, 3 Years 642
Expense Example, with Redemption, 5 Years 838
Expense Example, with Redemption, 10 Years 1,406
Class C  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 267
Expense Example, with Redemption, 3 Years 517
Expense Example, with Redemption, 5 Years 891
Expense Example, with Redemption, 10 Years 1,737
Class R  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 118
Expense Example, with Redemption, 3 Years 389
Expense Example, with Redemption, 5 Years 681
Expense Example, with Redemption, 10 Years $ 1,512