Schedule of Investments (Unaudited) - Treasury Bills and Money Market Fund - USD ($)		Sep. 30, 2023		Dec. 31, 2022
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity		99.99%		100.37%
United States Treasury Obligations, Value		$ 296,995,717		$ 666,431,938
Total Investments in Securities		530,244,852		1,649,582,526
Investments in Securities, Cost		$ 530,172,968		$ 1,649,547,064
Investment, Identifier [Axis]: Affiliated Investments
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity				59.82%
Investments in Securities, Value				$ 983,150,588
Affiliated Investments, at Cost				$ 983,344,642
Investment, Identifier [Axis]: Affiliated Investments Exchange-Traded Fund Invesco Treasury Collateral ETF
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[1]			4.48%
Affiliated Investments, Shares	[1]			698,600
Investments in Securities, Value	[1]			$ 73,590,524
Affiliated Investments, at Cost	[1]			$ 73,784,578
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	[1],[2]			55.34%
Affiliated Investments, Shares	[1],[2]			909,560,064
Investments in Securities, Value	[1],[2]			$ 909,560,064
Investment Interest Rate	[1],[2]			4.22%
Affiliated Investments, at Cost	[1],[2]			$ 909,560,064
Investment, Identifier [Axis]: Affiliated Investments Money Market Mutual Fund Invesco Government & Agency Portfolio, Institutional Class, 5.26%
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[3],[4]	43.98%
Affiliated Investments, Shares	[3],[4]	233,249,135
Investments in Securities, Value	[3],[4]	$ 233,249,135
Investment Interest Rate	[3],[4]	5.26%
Affiliated Investments, at Cost	[3],[4]	$ 233,249,135
Investment, Identifier [Axis]: United States Treasury Obligations
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity		56.01%	[5]	40.55%	[6]
United States Treasury Obligations, Value		$ 296,995,717	[5]	$ 666,431,938	[6]
Investments in Securities, Cost		296,923,833	[5]	666,202,422	[6]
Restricted for maintenance margin		$ 69,384,000		$ 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, 5.300% Due March 7, 2024
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[5]	4.61%
United States Treasury Obligations, Value	[5]	$ 24,420,862
United States Treasury Obligations, Principal Value	[5]	$ 25,000,000
Investment Interest Rate	[5]	5.30%
Investment Maturity Date	[5]	Mar. 07, 2024
Investment, Identifier [Axis]: United States Treasury Obligations U.S. Treasury Bills, 5.315% Due December 7, 2023
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[5]	4.67%
United States Treasury Obligations, Value	[5]	$ 24,756,625
United States Treasury Obligations, Principal Value	[5]	$ 25,000,000
Investment Interest Rate	[5]	5.315%
Investment Maturity Date	[5]	Dec. 07, 2023
Investment, Identifier [Axis]: United States Treasury Obligations U.S. Treasury Bills, 5.340% Due November 30, 2023
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[5],[8]	46.73%
United States Treasury Obligations, Value	[5],[8]	$ 247,818,230
United States Treasury Obligations, Principal Value	[5],[8]	$ 250,000,000
Investment Interest Rate	[5],[8]	5.34%
Investment Maturity Date	[5],[8]	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] The rate shown is the 7-day SEC standardized yield as of December 31, 2022.

[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] The rate shown is the 7-day SEC standardized yield as of September 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 $69,384,000 are on deposit with the Commodity Broker and held as maintenance margin for open futures contracts.