v3.26.3
S000012738 [Member] Expense Example - Western Asset Total Return Unconstrained Fund
May 31, 2026
USD ($)
Class I  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 78
Expense Example, with Redemption, 3 Years 321
Expense Example, with Redemption, 5 Years 582
Expense Example, with Redemption, 10 Years 1,331
Class FI  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 113
Expense Example, with Redemption, 3 Years 416
Expense Example, with Redemption, 5 Years 742
Expense Example, with Redemption, 10 Years 1,665
Class IS  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 67
Expense Example, with Redemption, 3 Years 280
Expense Example, with Redemption, 5 Years 510
Expense Example, with Redemption, 10 Years 1,171
Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 481
Expense Example, with Redemption, 3 Years 766
Expense Example, with Redemption, 5 Years 1,071
Expense Example, with Redemption, 10 Years 1,937
Class C  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 284
Expense Example, with Redemption, 3 Years 632
Expense Example, with Redemption, 5 Years 1,107
Expense Example, with Redemption, 10 Years 2,230
Class R  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 138
Expense Example, with Redemption, 3 Years 518
Expense Example, with Redemption, 5 Years 924
Expense Example, with Redemption, 10 Years $ 2,060