Schedule of Investments - Treasury Bills and Affiliated Investments - USD ($)		Dec. 31, 2023		Dec. 31, 2022
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity		100.92%		101.54%
Investments in Securities, Value		$ 710,772,102		$ 1,089,260,788
Investments in Securities, cost		$ 710,204,874		$ 1,089,144,428
Investment, Identifier [Axis]: Affiliated Investments
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity		52.22%		48.24%
Investments in Securities, Value		$ 367,815,458		$ 517,562,602
Affiliated Investments, at Cost		$ 367,600,564		$ 517,626,772
Investment, Identifier [Axis]: Affiliated Investments Exchange-Traded Fund Invesco Short Term Treasury ETF
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[1],[2]	16.99%
Investments in Securities, Shares	[1],[2]	1,133,800
Investments in Securities, Value	[1],[2]	$ 119,734,949
Affiliated Investments, at Cost	[1],[2]	$ 119,520,055
Investment, Identifier [Axis]: Affiliated Investments Exchange-Traded Fund Invesco Treasury Collateral ETF
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[3]			8.29%
Investments in Securities, Shares	[3]			844,700
Investments in Securities, Value	[3]			$ 88,980,698
Affiliated Investments, at Cost	[4]			$ 89,044,868
Investment, Identifier [Axis]: Affiliated Investments Money Market Mutual Fund Invesco Government & Agency Portfolio, Institutional Class
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity		35.23%	[1],[5]	39.95%	[3],[6]
Investments in Securities, Shares		248,080,509	[1],[5]	428,581,904	[3],[6]
Investments in Securities, Value		$ 248,080,509	[1],[5]	$ 428,581,904	[3],[6]
Investment Interest Rate		5.29%	[1],[5]	4.22%	[3],[6]
Affiliated Investments, at Cost		$ 248,080,509	[1],[5]	$ 428,581,904	[3],[6]
Investment, Identifier [Axis]: United States Treasury Obligations
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity		48.70%	[7]	53.30%	[8]
Investments in Securities, Value		$ 342,956,644	[7]	$ 571,698,186	[8]
Investments in Securities, cost		342,604,310	[7]	571,517,656	[8]
Restricted for maintenance margin		$ 146,865,000		$ 397,240,000
Investment, Identifier [Axis]: United States Treasury Obligations U.S. Treasury Bill, 3.340% due January 5, 2023
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[8]			9.32%
United States Treasury Obligations, Principal Value	[8]			$ 100,000,000
Investments in Securities, Value	[8]			$ 99,979,833
Investment Interest Rate	[8]			3.34%
Investment Maturity Date	[8]			Jan. 05, 2023
Investment, Identifier [Axis]: United States Treasury Obligations U.S. Treasury Bill, 4.270% due March 9, 2023
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[8]			4.63%
United States Treasury Obligations, Principal Value	[8]			$ 50,000,000
Investments in Securities, Value	[8]			$ 49,617,380
Investment Interest Rate	[8]			4.27%
Investment Maturity Date	[8]			Mar. 09, 2023
Investment, Identifier [Axis]: United States Treasury Obligations U.S. Treasury Bill, 4.285% due March 2, 2023
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[4],[8]			39.35%
United States Treasury Obligations, Principal Value	[4],[8]			$ 425,000,000
Investments in Securities, Value	[4],[8]			$ 422,100,973
Investment Interest Rate	[4],[8]			4.285%
Investment Maturity Date	[4],[8]			Mar. 02, 2023
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	[7]	3.47%
United States Treasury Obligations, Principal Value	[7]	$ 25,000,000
Investments in Securities, Value	[7]	$ 24,453,458
Investment Interest Rate	[7]	5.19%
Investment Maturity Date	[7]	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	[7],[9]	41.71%
United States Treasury Obligations, Principal Value	[7],[9]	$ 300,000,000
Investments in Securities, Value	[7],[9]	$ 293,737,965
Investment Interest Rate	[7],[9]	5.24%
Investment Maturity Date	[7],[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	[7]	3.52%
United States Treasury Obligations, Principal Value	[7]	$ 25,000,000
Investments in Securities, Value	[7]	$ 24,765,221
Investment Interest Rate	[7]	5.25%
Investment Maturity Date	[7]	Mar. 07, 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] 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.

[3] 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.

[4] United States Treasury Obligations of $397,240,000 are on deposit with the Commodity Broker and held as maintenance margin for open futures contracts.

[5] The rate shown is the 7-day SEC standardized yield as of December 31, 2023.

[6] The rate shown is the 7-day SEC standardized yield as of December 31, 2022.

[7] 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.

[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 $146,865,000 are on deposit with the Commodity Broker and held as maintenance margin for open futures contracts.