Schedule of Investments - Treasury Bills and Money Market Fund - USD ($)		Dec. 31, 2023		Dec. 31, 2022
Schedule of Investments [Line Items]
United States Treasury Obligations, Value		$ 294,000,317		$ 666,431,938
Total Investments in Securities		$ 405,534,374		$ 1,649,582,526
Investment, Identifier [Axis]: Affiliated Investments
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity		28.70%	[1]	59.82%
Investments in Securities, Value		$ 111,534,057		$ 983,150,588
Affiliated Investments, at Cost		$ 111,534,057		$ 983,344,642
Investment, Identifier [Axis]: Affiliated Investments Exchange-Traded Fund Invesco Treasury Collateral ETF
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[2]			4.48%
Affiliated Investments, Shares	[2]			698,600
Investments in Securities, Value				$ 73,590,524
Affiliated Investments, at Cost	[2]			$ 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	[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, 5.29%
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[4],[5]	28.70%
Affiliated Investments, Shares	[4],[5]	111,534,057
Investments in Securities, Value	[4],[5]	$ 111,534,057
Investment Interest Rate	[4],[5]	5.29%
Affiliated Investments, at Cost	[4],[5]	$ 111,534,057
Investment, Identifier [Axis]: Investments in Securities
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity		104.34%		100.37%
Total Investments in Securities		$ 405,534,374		$ 1,649,582,526
Investments in Securities, Cost		$ 405,235,143		$ 1,649,547,064
Investment, Identifier [Axis]: United States Treasury Obligations
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[1]	75.64%		40.55%
United States Treasury Obligations, Value	[1]	$ 294,000,317		$ 666,431,938
Investments in Securities, Cost		293,701,086	[1]	666,202,422	[6]
Restricted for maintenance margin		$ 68,537,000		$ 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	[1],[8]			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]			9.08%
United States Treasury Obligations, Value	[6]			$ 149,254,979
United States Treasury Obligations, Principal Value	[6]			$ 150,000,000
Investment Interest Rate	[1]			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	[1]			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	[1]			4.285%
Investment Maturity Date	[6]			Mar. 02, 2023
Investment, Identifier [Axis]: United States Treasury Obligations U.S. Treasury Bills, 5.190% Due June 6, 2024
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[1]	6.29%
United States Treasury Obligations, Value	[1],[8]	$ 24,453,458
United States Treasury Obligations, Principal Value	[1],[8]	$ 25,000,000
Investment Interest Rate	[1]	5.19%
Investment Maturity Date	[1]	Jun. 06, 2024
Investment, Identifier [Axis]: United States Treasury Obligations U.S. Treasury Bills, 5.240% Due May 30, 2024
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[1],[8]	62.98%
United States Treasury Obligations, Value	[1],[8]	$ 244,781,638
United States Treasury Obligations, Principal Value	[1],[8]	$ 250,000,000
Investment Interest Rate	[1],[8]	5.24%
Investment Maturity Date	[1],[8]	May 30, 2024
Investment, Identifier [Axis]: United States Treasury Obligations U.S. Treasury Bills, 5.250% Due March 7, 2024
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[1]	6.37%
United States Treasury Obligations, Value	[1]	$ 24,765,221
United States Treasury Obligations, Principal Value	[1]	$ 25,000,000
Investment Interest Rate	[1]	5.25%
Investment Maturity Date	[1]	Mar. 07, 2024

[1] 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.

[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] 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.

[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 $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 $68,537,000 are on deposit with the Commodity Broker and held as maintenance margin for open futures contracts.