Schedule of Investments (Unaudited) - Treasury Bills and Money Market Fund - USD ($)		Jun. 30, 2022		Dec. 31, 2021
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity		105.56%		99.87%
United States Treasury Obligations, Value		$ 1,757,250,292		$ 622,017,111
Affiliated Investments, Value		2,667,017,135		2,004,216,762
Investments in Securities, Value		4,424,267,427		2,626,233,873
Investments in Securities, Cost		$ 4,427,542,452		$ 2,625,803,722
Affiliated Investments [Member]
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity		63.63%		76.21%
Affiliated Investments, Value		$ 2,667,017,135		$ 2,004,216,762
Affiliated Investments, at Cost		2,666,639,784		2,003,793,764
Affiliated Investments [Member] | Invesco Government & Agency Portfolio, Institutional Class [Member]
Schedule of Investments [Line Items]
Affiliated Investments, Value		$ 2,474,202,095		$ 1,811,356,075
U.S. Treasury Bills, 0.860% due July 21, 2022 [Member]
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[1],[2]	1.43%
United States Treasury Obligations, Value	[1],[2]	$ 59,966,959
United States Treasury Obligations, Principal Value	[1],[2]	$ 60,000,000
Investment Interest Rate	[1],[2]	0.86%
Investment Maturity Date	[1],[2]	Jul. 21, 2022
U.S. Treasury Bills, 0.890% due July 28, 2022 [Member]
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[1],[2]	2.38%
United States Treasury Obligations, Value	[1],[2]	$ 99,928,000
United States Treasury Obligations, Principal Value	[1],[2]	$ 100,000,000
Investment Interest Rate	[1],[2]	0.89%
Investment Maturity Date	[1],[2]	Jul. 28, 2022
U.S. Treasury Bills, 1.050% due August 18, 2022 [Member]
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[1],[2]	3.10%
United States Treasury Obligations, Value	[1],[2]	$ 129,769,467
United States Treasury Obligations, Principal Value	[1],[2]	$ 130,000,000
Investment Interest Rate	[1],[2]	1.05%
Investment Maturity Date	[1],[2]	Aug. 18, 2022
U.S. Treasury Bills, 1.250% due October 20, 2022 [Member]
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[1],[2]	7.12%
United States Treasury Obligations, Value	[1],[2]	$ 298,239,030
United States Treasury Obligations, Principal Value	[1],[2]	$ 300,000,000
Investment Interest Rate	[1],[2]	1.25%
Investment Maturity Date	[1],[2]	Oct. 20, 2022
U.S. Treasury Bills, 1.370% due October 27, 2022 [Member]
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[1],[2]	2.37%
United States Treasury Obligations, Value	[1],[2]	$ 99,372,797
United States Treasury Obligations, Principal Value	[1],[2]	$ 100,000,000
Investment Interest Rate	[1],[2]	1.37%
Investment Maturity Date	[1],[2]	Oct. 27, 2022
U.S. Treasury Bills, 1.490% due November 17, 2022 [Member]
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[1],[2]	3.08%
United States Treasury Obligations, Value	[1],[2]	$ 128,974,778
United States Treasury Obligations, Principal Value	[1],[2]	$ 130,000,000
Investment Interest Rate	[1],[2]	1.49%
Investment Maturity Date	[1],[2]	Nov. 17, 2022
U.S. Treasury Bills, 1.580% due December 1, 2022 [Member]
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[1]	17.73%
United States Treasury Obligations, Value	[1]	$ 742,991,483
United States Treasury Obligations, Principal Value	[1]	$ 750,000,000
Investment Interest Rate	[1]	1.58%
Investment Maturity Date	[1]	Dec. 01, 2022
U.S. Treasury Bills, 1.710% due December 8, 2022 [Member]
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[1],[2]	4.72%
United States Treasury Obligations, Value	[1],[2]	$ 198,007,778
United States Treasury Obligations, Principal Value	[1],[2]	$ 200,000,000
Investment Interest Rate	[1],[2]	1.71%
Investment Maturity Date	[1],[2]	Dec. 08, 2022
Exchange-Traded Fund [Member] | Affiliated Investments [Member]
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[3]	4.60%		7.33%
Affiliated Investments, Value	[3]	$ 192,815,040		$ 192,860,687
Affiliated Investments, Shares	[3]	1,825,900		1,825,900
Investments in Securities, Cost	[3]	$ 192,437,689		$ 192,437,689
United States Treasury Obligations [Member]
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[1]	41.93%		23.66%
United States Treasury Obligations, Value	[1]	$ 1,757,250,292		$ 622,017,111
Investments in Securities, Cost	[1]	1,760,902,668		$ 622,009,958
US Treasury Bills, 0.170% Due September 10, 2020 [Member]
Schedule of Investments [Line Items]
Restricted for maintenance margin		$ 696,603,000
U.S. Treasury Bills, 0.055% due January 20, 2022 [Member]
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[1]			4.56%
United States Treasury Obligations, Value	[1]			$ 119,999,575
United States Treasury Obligations, Principal Value	[1]			$ 120,000,000
Investment Interest Rate	[1]			0.055%
Investment Maturity Date	[1]			Jan. 20, 2022
U.S. Treasury Bills, 0.040% due January 6, 2022 [Member]
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[1]			3.80%
United States Treasury Obligations, Value	[1]			$ 100,000,008
United States Treasury Obligations, Principal Value	[1]			$ 100,000,000
Investment Interest Rate	[1]			0.04%
Investment Maturity Date	[1]			Jan. 06, 2022
U.S. Treasury Bills, 0.055% due January 27, 2022 [Member]
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[1],[4]			7.62%
United States Treasury Obligations, Value	[1],[4]			$ 199,997,000
United States Treasury Obligations, Principal Value	[1],[4]			$ 200,000,000
Investment Interest Rate	[1],[4]			0.055%
Investment Maturity Date	[1],[4]			Jan. 27, 2022
U.S. Treasury Bills, 0.050% due February 3, 2022 [Member]
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[1],[4]			3.88%
United States Treasury Obligations, Value	[1],[4]			$ 102,027,403
United States Treasury Obligations, Principal Value	[1],[4]			$ 102,029,600
Investment Interest Rate	[1],[4]			0.05%
Investment Maturity Date	[1],[4]			Feb. 03, 2022
U.S. Treasury Bills, 0.070% due March 10, 2022 [Member]
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[1],[4]			3.80%
United States Treasury Obligations, Value	[1],[4]			$ 99,993,125
United States Treasury Obligations, Principal Value	[1],[4]			$ 100,000,000
Investment Interest Rate	[1],[4]			0.07%
Investment Maturity Date	[1],[4]			Mar. 10, 2022
Money Market Mutual Fund [Member] | Affiliated Investments [Member]
Schedule of Investments [Line Items]
Investment Interest Rate	[3]	1.39%	[5]	0.03%	[6]
Affiliated Investments, at Cost	[3]	$ 2,474,202,095	[5]	$ 1,811,356,075	[6]
Money Market Mutual Fund [Member] | Affiliated Investments [Member] | Invesco Government & Agency Portfolio, Institutional Class [Member]
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[3]	59.03%	[5]	68.88%	[6]
Affiliated Investments, Value	[3]	$ 2,474,202,095	[5]	$ 1,811,356,075	[6]
Affiliated Investments, Shares	[3]	2,474,202,095	[5]	1,811,356,075	[6]
U.S. Treasury Bills, 0.085% due February 25, 2021 [Member]
Schedule of Investments [Line Items]
Restricted for maintenance margin				$ 299,970,000

[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] United States Treasury Obligations of $696,603,000 are on deposit with the Commodity Broker and held as maintenance margin for open futures contracts.

[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 $299,970,000 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 June 30, 2022.

[6] The rate shown is the 7-day SEC standardized yield as of December 31, 2021.