v3.25.2
Class C2 [Member] Investment Objectives and Goals - Class C2 - Western Asset Short Duration Municipal Income Fund
Feb. 28, 2025
Prospectus [Line Items]  
Risk/Return [Heading] WESTERN ASSET SHORT DURATION MUNICIPAL INCOME FUND
Objective [Heading] Investment objective
Objective, Primary [Text Block]
The fund seeks to generate high current income exempt from regular federal income tax while preserving capital.