v3.24.4
Form N-1A Cover
Aug. 31, 2024
Prospectus [Line Items]  
Document Type 485BPOS
Amendment Flag false
Registrant Name SHORT-TERM INVESTMENTS TRUST
Entity Central Index Key 0000205007
Entity Investment Company Type N-1A
Document Period End Date Aug. 31, 2024
Prospectus Date Dec. 20, 2024