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Schedule of Investments (Unaudited) - Treasury Bills and Money Market Fund - USD ($)
Sep. 30, 2024
Dec. 31, 2023
Schedule of Investments [Line Items]    
Percentage of Shareholders' Equity 98.74% 100.54%
Investments in Securities, Value $ 1,412,195,428 $ 1,692,470,773
Investments in Securities, Cost $ 1,411,024,278 $ 1,691,344,447
Investment, Identifier [Axis]: Affiliated Investments    
Schedule of Investments [Line Items]    
Percentage of Shareholders' Equity 50.18% 53.95%
Investments in Securities, Value $ 717,613,302 $ 908,120,125
Affiliated Investments, at Cost $ 717,146,908 $ 907,765,903
Investment, Identifier [Axis]: Affiliated Investments Exchange-Traded Fund Invesco Short Term Treasury ETF    
Schedule of Investments [Line Items]    
Percentage of Shareholders' Equity 15.07% [1] 12.80% [2],[3]
Investments in Securities, Value $ 215,493,570 [1] $ 215,381,398 [2],[3]
Investments in Securities, Shares 2,039,500 [1] 2,039,500 [2],[3]
Investments in Securities, Cost $ 215,027,176 [1] $ 215,027,176 [2],[3]
Investment, Identifier [Axis]: Affiliated Investments Money Market Mutual Fund Invesco Government & Agency Portfolio, Institutional Class    
Schedule of Investments [Line Items]    
Percentage of Shareholders' Equity 35.11% [1],[4] 41.15% [2],[5]
Investments in Securities, Value $ 502,119,732 [1],[4] $ 692,738,727 [2],[5]
Investment Interest Rate 4.85% [1],[4] 5.29% [2],[5]
Investments in Securities, Shares 502,119,732 [1],[4] 692,738,727 [2],[5]
Affiliated Investments, at Cost $ 502,119,732 [1],[4] $ 692,738,727 [2],[5]
Investment, Identifier [Axis]: United States Treasury Obligation U.S. Treasury Bills, 4.980% due November 29, 2024    
Schedule of Investments [Line Items]    
Percentage of Shareholders' Equity [6],[7] 41.63%  
Investments in Securities, Value [6],[7] $ 595,396,770  
United States Treasury Obligations, Principal Value [6],[7] $ 600,000,000  
Investment Interest Rate [6],[7] 4.98%  
Investment Maturity Date [6],[7] Nov. 29, 2024  
Investment, Identifier [Axis]: United States Treasury Obligations    
Schedule of Investments [Line Items]    
Percentage of Shareholders' Equity 48.56% [6] 46.59% [8]
Investments in Securities, Value $ 694,582,126 [6] $ 784,350,648 [8]
Investments in Securities, Cost 693,877,370 [6] 783,578,544 [8]
Restricted for maintenance margin $ 396,920,000 $ 391,640,000
Investment, Identifier [Axis]: United States Treasury Obligations U.S. Treasury Bill, 5.190% due June 6, 2024    
Schedule of Investments [Line Items]    
Percentage of Shareholders' Equity [8]   5.81%
Investments in Securities, Value [8]   $ 97,813,833
United States Treasury Obligations, Principal Value [8]   $ 100,000,000
Investment Interest Rate [8]   5.19%
Investment Maturity Date [8]   Jun. 06, 2024
Investment, Identifier [Axis]: United States Treasury Obligations U.S. Treasury Bill, 5.240% due May 30, 2024    
Schedule of Investments [Line Items]    
Percentage of Shareholders' Equity [8],[9]   34.90%
Investments in Securities, Value [8],[9]   $ 587,475,930
United States Treasury Obligations, Principal Value [8],[9]   $ 600,000,000
Investment Interest Rate [8],[9]   5.24%
Investment Maturity Date [8],[9]   May 30, 2024
Investment, Identifier [Axis]: United States Treasury Obligations U.S. Treasury Bill, 5.250% due March 7, 2024    
Schedule of Investments [Line Items]    
Percentage of Shareholders' Equity [8]   5.88%
Investments in Securities, Value [8]   $ 99,060,885
United States Treasury Obligations, Principal Value [8]   $ 100,000,000
Investment Interest Rate [8]   5.25%
Investment Maturity Date [8]   Mar. 07, 2024
Investment, Identifier [Axis]: United States Treasury Obligations U.S. Treasury Bills, 4.970% due December 5, 2024    
Schedule of Investments [Line Items]    
Percentage of Shareholders' Equity [6] 6.93%  
Investments in Securities, Value [6] $ 99,185,356  
United States Treasury Obligations, Principal Value [6] $ 100,000,000  
Investment Interest Rate [6],[7] 4.97%  
Investment Maturity Date [6],[7] Dec. 05, 2024  
[1] Affiliated issuer. The issuer and/or the Fund is a wholly-owned subsidiary of Invesco Ltd., or is affiliated by having an investment adviser that is under common control of Invesco Ltd. See Note 8.
[2] Affiliated issuer. The issuer and/or the Fund is a wholly-owned subsidiary of Invesco Ltd., or is affiliated by having an investment adviser that is under common control of Invesco Ltd. See Note 8
[3] Effective after the close of markets on August 25, 2023, the fund’s name changed from Invesco Treasury Collateral ETF to Invesco Short Term Treasury ETF.
[4] The rate shown is the 7-day SEC standardized yield as of September 30, 2024.
[5] The rate shown is the 7-day SEC standardized yield as of December 31, 2023.
[6] Security may be traded on a discount basis. The interest rate shown represents the discount rate at the most recent auction date of the security prior to period end.
[7] United States Treasury Obligations of $396,920,000 are on deposit with the Commodity Broker and held as maintenance margin for open futures contracts.
[8] Security may be traded on a discount basis. The interest rate shown represents the discount rate at the most recent auction date of the security prior to period end.
[9] United States Treasury Obligations of $391,640,000 are on deposit with the Commodity Broker and held as maintenance margin for open futures contracts.