Schedule of Investments - Treasury Bills and Affiliated Investments - USD ($)		Dec. 31, 2025		Dec. 31, 2024
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity		81.58%		97.50%
Investments in Securities, Value		$ 589,685,144		$ 767,686,990
Investments in Securities, Cost		589,419,229		$ 767,216,178
Restricted for maintenance margin		$ 134,602,431
Investment, Identifier [Axis]: Affiliated Investments Exchange-Traded Fund Invesco Short Term Treasury ETF
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity		16.57%	[1]	15.20%	[2]
Investments in Securities, Shares		1,133,800	[1]	1,133,800	[2]
Investments in Securities, Value		$ 119,785,970	[1]	$ 119,729,280	[2]
Affiliated Investments, at Cost		$ 119,520,055	[1]	$ 119,520,055	[2]
Investment, Identifier [Axis]: Affiliated Investments Money Market Mutual Fund Invesco Government & Agency Portfolio, Institutional Class
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity		65.01%	[1],[3]	51.08%	[2],[4]
Investments in Securities, Shares		469,899,174	[1],[3]	402,174,495	[2],[4]
Investments in Securities, Value		$ 469,899,174	[1],[3]	$ 402,174,495	[2],[4]
Investment Interest Rate		3.68%	[1],[3]	4.43%	[2],[4]
Investment Maturity Date	[5],[6]	Dec. 31, 2025		Dec. 31, 2024
Affiliated Investments, at Cost		$ 469,899,174	[1],[3]	$ 402,174,495	[2],[4]
Investment, Identifier [Axis]: United States Treasury Obligations
Schedule of Investments [Line Items]
Restricted for maintenance margin				$ 147,450,000
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	[5]			31.22%
United States Treasury Obligations, Principal Value	[5],[6]			$ 250,000,000
Investments in Securities, Value	[5],[6]			$ 245,783,215
Investment Interest Rate	[5],[6]			4.34%
Investment Maturity Date	[5],[6]			May 29, 2025
Investment, Affiliated Issuer [Member]
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity		81.58%		66.28%
Investments in Securities, Value		$ 589,685,144		$ 521,903,775
Affiliated Investments, at Cost		589,419,229		$ 521,694,550
US Treasury Bill Securities [Member]
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[5]			31.22%
Investments in Securities, Value	[5]			$ 245,783,215
Investments in Securities, Cost		$ 0		$ 245,521,628	[5]

[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, 2025.

[4] The rate shown is the 7-day SEC standardized yield as of December 31, 2024.

[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] United States Treasury Obligations of $147,450,000 are on deposit with the Commodity Broker and held as maintenance margin for open futures contracts.