Schedule of Investments (Unaudited) - Treasury Bills and Money Market Fund - USD ($)		Jun. 30, 2023		Dec. 31, 2022
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity		98.96%		100.37%
United States Treasury Obligations, Value		$ 313,931,580		$ 666,431,938
Total Investments in Securities		629,350,960		1,649,582,526
Investments in Securities, Cost		$ 629,221,493		$ 1,649,547,064
Investment, Identifier [Axis]: Affiliated Investments
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity		49.60%		59.82%
Investments in Securities, Value		$ 315,419,380		$ 983,150,588
Affiliated Investments, at Cost		$ 315,522,616		$ 983,344,642
Investment, Identifier [Axis]: Affiliated Investments Exchange-Traded Fund Invesco Treasury Collateral ETF
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity		11.59%	[1]	4.48%	[2]
Affiliated Investments, Shares		698,600	[1]	698,600	[2]
Investments in Securities, Value		$ 73,681,342	[1]	$ 73,590,524	[2]
Affiliated Investments, at Cost		$ 73,784,578	[1]	$ 73,784,578	[2]
Investment, Identifier [Axis]: Affiliated Investments Money Market Mutual Fund Invesco Government & Agency Portfolio, Institutional Class, 4.22%
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[2],[3]			55.34%
Affiliated Investments, Shares	[2],[3]			909,560,064
Investments in Securities, Value	[2],[3]			$ 909,560,064
Investment Interest Rate	[2],[3]			4.22%
Affiliated Investments, at Cost	[2],[3]			$ 909,560,064
Investment, Identifier [Axis]: Affiliated Investments Money Market Mutual Fund Invesco Government & Agency Portfolio, Institutional Class, 5.05%
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[1],[4]	38.01%
Affiliated Investments, Shares	[1],[4]	241,738,038
Investments in Securities, Value	[1],[4]	$ 241,738,038
Investment Interest Rate	[1],[4]	5.05%
Affiliated Investments, at Cost	[1],[4]	$ 241,738,038
Investment, Identifier [Axis]: United States Treasury Obligations
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity		49.36%	[5]	40.55%	[6]
United States Treasury Obligations, Value		$ 313,931,580	[5]	$ 666,431,938	[6]
Investments in Securities, Cost		313,698,877	[5]	666,202,422	[6]
Restricted for maintenance margin		$ 68,481,000		$ 99,830,000
Investment, Identifier [Axis]: United States Treasury Obligations U.S. Treasury Bills, 3.820% Due January 19, 2023
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[6],[7]			9.11%
United States Treasury Obligations, Value	[6],[7]			$ 149,759,000
United States Treasury Obligations, Principal Value	[6],[7]			$ 150,000,000
Investment Interest Rate	[6],[7]			3.82%
Investment Maturity Date	[6],[7]			Jan. 19, 2023
Investment, Identifier [Axis]: United States Treasury Obligations U.S. Treasury Bills, 4.155% Due February 16, 2023
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[6],[7]			9.08%
United States Treasury Obligations, Value	[6],[7]			$ 149,254,978
United States Treasury Obligations, Principal Value	[6],[7]			$ 150,000,000
Investment Interest Rate	[6],[7]			4.155%
Investment Maturity Date	[6]			Feb. 16, 2023
Investment, Identifier [Axis]: United States Treasury Obligations U.S. Treasury Bills, 4.270% Due March 9, 2023
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[6]			4.23%
United States Treasury Obligations, Value	[6]			$ 69,464,332
United States Treasury Obligations, Principal Value	[6]			$ 70,000,000
Investment Interest Rate	[6]			4.27%
Investment Maturity Date	[6]			Mar. 09, 2023
Investment, Identifier [Axis]: United States Treasury Obligations U.S. Treasury Bills, 4.285% Due March 2, 2023
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[6]			18.13%
United States Treasury Obligations, Value	[6]			$ 297,953,628
United States Treasury Obligations, Principal Value	[6]			$ 300,000,000
Investment Interest Rate	[6]			4.285%
Investment Maturity Date	[6]			Mar. 02, 2023
Investment, Identifier [Axis]: United States Treasury Obligations U.S. Treasury Bills, 5.220% Due Sep 7, 2023
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[5]	10.90%
United States Treasury Obligations, Value	[5]	$ 69,341,650
United States Treasury Obligations, Principal Value	[5]	$ 70,000,000
Investment Interest Rate	[5]	5.22%
Investment Maturity Date	[5]	Sep. 07, 2023
Investment, Identifier [Axis]: United States Treasury Obligations U.S. Treasury Bills, 5.290% Due Nov 30, 2023
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[5],[8]	38.46%
United States Treasury Obligations, Value	[5],[8]	$ 244,589,930
United States Treasury Obligations, Principal Value	[5],[8]	$ 250,000,000
Investment Interest Rate	[5]	5.29%
Investment Maturity Date	[5]	Nov. 30, 2023

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

[4] The rate shown is the 7-day SEC standardized yield as of June 30, 2023.

[5] 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.

[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 $99,830,000 are on deposit with the Commodity Broker and held as maintenance margin for open futures contracts.

[8] United States Treasury Obligations of $68,481,000 are on deposit with the Commodity Broker and held as maintenance margin for open futures contracts.