v3.26.3
Shareholder Report, Average Annual Return (Details) LMF7300_ClearBridge SMASh Series EM Fund_Single Class_TSR Annual {Single Class}
12 Months Ended 60 Months Ended 103 Months Ended
Jul. 31, 2026
Jul. 31, 2026
Jul. 31, 2026
ClearBridge SMASh Series EM Fund      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name ClearBridge SMASh Series EM Fund    
Average Annual Return, Percent 79.66% 8.08% 8.50%
MSCI Emerging Markets Index-NR [Member]      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name MSCI Emerging Markets Index-NR    
Average Annual Return, Percent 36.44% 8.03% 6.44%