v3.26.3
Shareholder Report, Holdings (Details)
Jul. 31, 2026
C000260907 [Member] | Net Other Assets And Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (3.90%)
C000260907 [Member] | U S Treasury Floating Rate Notes [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.70%
C000260907 [Member] | US Treasury Bill Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 83.60%
C000260907 [Member] | US Treasury Notes Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.60%
C000223305 [Member] | Net Other Assets And Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (3.90%)
C000223305 [Member] | U S Treasury Floating Rate Notes [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.70%
C000223305 [Member] | US Treasury Bill Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 83.60%
C000223305 [Member] | US Treasury Notes Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.60%
C000223306 [Member] | Net Other Assets And Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (3.90%)
C000223306 [Member] | U S Treasury Floating Rate Notes [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.70%
C000223306 [Member] | US Treasury Bill Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 83.60%
C000223306 [Member] | US Treasury Notes Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.60%
C000000258 [Member] | Net Other Assets And Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (3.90%)
C000000258 [Member] | U S Treasury Floating Rate Notes [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.70%
C000000258 [Member] | US Treasury Bill Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 83.60%
C000000258 [Member] | US Treasury Notes Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.60%
C000000257 [Member] | Net Other Assets And Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (3.90%)
C000000257 [Member] | U S Treasury Floating Rate Notes [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.70%
C000000257 [Member] | US Treasury Bill Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 83.60%
C000000257 [Member] | US Treasury Notes Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.60%
C000000256 [Member] | Net Other Assets And Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (3.90%)
C000000256 [Member] | U S Treasury Floating Rate Notes [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.70%
C000000256 [Member] | US Treasury Bill Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 83.60%
C000000256 [Member] | US Treasury Notes Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.60%
C000000255 [Member] | Net Other Assets And Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (3.90%)
C000000255 [Member] | U S Treasury Floating Rate Notes [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.70%
C000000255 [Member] | US Treasury Bill Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 83.60%
C000000255 [Member] | US Treasury Notes Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.60%