v3.26.3
Shareholder Report, Holdings (Details)
Jul. 31, 2026
C000275993 [Member] | Net Other Assets and Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000275993 [Member] | U S Treasury Floating Rate Notes [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000275993 [Member] | US Government Corporations and Agencies Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 18.70%
C000275993 [Member] | Repurchase Agreements [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 44.10%
C000275993 [Member] | US Treasury Bill Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.10%
C000275993 [Member] | US Treasury Notes Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000275994 [Member] | Net Other Assets and Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000275994 [Member] | U S Treasury Floating Rate Notes [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000275994 [Member] | US Government Corporations and Agencies Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 18.70%
C000275994 [Member] | Repurchase Agreements [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 44.10%
C000275994 [Member] | US Treasury Bill Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.20%
C000275994 [Member] | US Treasury Notes Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000250287 [Member] | Net Other Assets and Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000250287 [Member] | U S Treasury Floating Rate Notes [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000250287 [Member] | US Government Corporations and Agencies Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 18.70%
C000250287 [Member] | Repurchase Agreements [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 44.10%
C000250287 [Member] | US Treasury Bill Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.10%
C000250287 [Member] | US Treasury Notes Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000243326 [Member] | Net Other Assets and Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000243326 [Member] | U S Treasury Floating Rate Notes [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000243326 [Member] | US Government Corporations and Agencies Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 18.70%
C000243326 [Member] | Repurchase Agreements [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 44.10%
C000243326 [Member] | US Treasury Bill Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.10%
C000243326 [Member] | US Treasury Notes Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000233952 [Member] | Net Other Assets and Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000233952 [Member] | U S Treasury Floating Rate Notes [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000233952 [Member] | US Government Corporations and Agencies Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 18.70%
C000233952 [Member] | Repurchase Agreements [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 44.10%
C000233952 [Member] | US Treasury Bill Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.10%
C000233952 [Member] | US Treasury Notes Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000223301 [Member] | Net Other Assets and Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000223301 [Member] | U S Treasury Floating Rate Notes [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000223301 [Member] | US Government Corporations and Agencies Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 18.70%
C000223301 [Member] | Repurchase Agreements [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 44.10%
C000223301 [Member] | US Treasury Bill Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.10%
C000223301 [Member] | US Treasury Notes Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000223302 [Member] | Net Other Assets and Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000223302 [Member] | U S Treasury Floating Rate Notes [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000223302 [Member] | US Government Corporations and Agencies Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 18.70%
C000223302 [Member] | Repurchase Agreements [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 44.10%
C000223302 [Member] | US Treasury Bill Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.10%
C000223302 [Member] | US Treasury Notes Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000000289 [Member] | Net Other Assets and Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000000289 [Member] | U S Treasury Floating Rate Notes [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000000289 [Member] | US Government Corporations and Agencies Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 18.70%
C000000289 [Member] | Repurchase Agreements [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 44.10%
C000000289 [Member] | US Treasury Bill Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.10%
C000000289 [Member] | US Treasury Notes Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000000288 [Member] | Net Other Assets and Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000000288 [Member] | U S Treasury Floating Rate Notes [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000000288 [Member] | US Government Corporations and Agencies Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 18.70%
C000000288 [Member] | Repurchase Agreements [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 44.10%
C000000288 [Member] | US Treasury Bill Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.10%
C000000288 [Member] | US Treasury Notes Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000000286 [Member] | Net Other Assets and Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000000286 [Member] | U S Treasury Floating Rate Notes [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000000286 [Member] | US Government Corporations and Agencies Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 18.70%
C000000286 [Member] | Repurchase Agreements [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 44.10%
C000000286 [Member] | US Treasury Bill Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.10%
C000000286 [Member] | US Treasury Notes Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000000287 [Member] | Net Other Assets and Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000000287 [Member] | U S Treasury Floating Rate Notes [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000000287 [Member] | US Government Corporations and Agencies Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 18.70%
C000000287 [Member] | Repurchase Agreements [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 44.10%
C000000287 [Member] | US Treasury Bill Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.10%
C000000287 [Member] | US Treasury Notes Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000000291 [Member] | Net Other Assets and Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (3.60%)
C000000291 [Member] | U S Treasury Floating Rate Notes [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000000291 [Member] | US Government Corporations and Agencies Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 34.80%
C000000291 [Member] | US Treasury Bill Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 55.80%
C000000291 [Member] | US Treasury Notes Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
C000000290 [Member] | Net Other Assets and Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (3.60%)
C000000290 [Member] | U S Treasury Floating Rate Notes [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000000290 [Member] | US Government Corporations and Agencies Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 34.80%
C000000290 [Member] | US Treasury Bill Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 55.80%
C000000290 [Member] | US Treasury Notes Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
C000000292 [Member] | Net Other Assets and Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (3.60%)
C000000292 [Member] | U S Treasury Floating Rate Notes [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000000292 [Member] | US Government Corporations and Agencies Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 34.80%
C000000292 [Member] | US Treasury Bill Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 55.80%
C000000292 [Member] | US Treasury Notes Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
C000000293 [Member] | Net Other Assets and Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (3.60%)
C000000293 [Member] | U S Treasury Floating Rate Notes [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000000293 [Member] | US Government Corporations and Agencies Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 34.80%
C000000293 [Member] | US Treasury Bill Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 55.80%
C000000293 [Member] | US Treasury Notes Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%