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Goldman Sachs Financial Square Treasury Instruments Fund Average Annual Total Returns - Service Shares [Member] - Service Shares
12 Months Ended 60 Months Ended 120 Months Ended
Nov. 30, 2025
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Prospectus [Line Items]        
Average Annual Return, Percent   3.63% 2.74% 1.68%
Performance Inception Date Mar. 05, 1997