Shareholder Report, Average Annual Return (Details) LMF2200_Western Asset Corporate Bond Fund_Class I_TSR Annual {Class I}	12 Months Ended	60 Months Ended	120 Months Ended
	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
Class I
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Class I
Average Annual Return, Percent	8.65%	(0.11%)	3.64%
Bloomberg U.S. Aggregate Index [Member]
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Bloomberg U.S. Aggregate Index
Average Annual Return, Percent	7.30%	(0.36%)	2.01%
Bloomberg U.S. Credit Index [Member]
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Bloomberg U.S. Credit Index
Average Annual Return, Percent	7.83%	(0.05%)	3.15%