Statement of Changes in Shareholders' Equity (Unaudited) - USD ($)	Total	General Shares [Member]	Shares [Member]
Balance - Value at Dec. 31, 2020	$ 366,185,815	$ 970	$ 366,184,845
Balance - Shares at Dec. 31, 2020		40	15,100,000
Purchases of Shares - Value	216,360,170		$ 216,360,170
Purchases of Shares - Shares			8,800,000
Redemption of Shares - Value	(218,266,804)		$ (218,266,804)
Redemption of Shares - Shares			(8,900,000)
Net Increase (Decrease) due to Share Transactions, value	(1,906,634)		$ (1,906,634)
Net Increase (Decrease) due to Share Transactions, shares			(100,000)
Net Income (Loss)
Net Investment Income (Loss)	(618,996)	$ (2)	$ (618,994)
Net Realized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Currency Futures Contracts	3,101,877	9	3,101,868
Net Change in Unrealized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Currency Futures Contracts	9,918,720	27	9,918,693
Net Income (Loss)	12,401,601	34	12,401,567
Net Change in Shareholders' Equity, value	10,494,967	34	$ 10,494,933
Net Change in Shareholders' Equity, shares			(100,000)
Balance - Value at Mar. 31, 2021	376,680,782	$ 1,004	$ 376,679,778
Balance - Shares at Mar. 31, 2021		40	15,000,000
Balance - Value at Dec. 31, 2021	717,345,170	$ 1,025	$ 717,344,145
Balance - Shares at Dec. 31, 2021		40	28,000,000
Purchases of Shares - Value	404,351,335		$ 404,351,335
Purchases of Shares - Shares			15,700,000
Redemption of Shares - Value	(172,381,374)		$ (172,381,374)
Redemption of Shares - Shares			(6,700,000)
Net Increase (Decrease) due to Share Transactions, value	231,969,961		$ 231,969,961
Net Increase (Decrease) due to Share Transactions, shares			9,000,000
Net Income (Loss)
Net Investment Income (Loss)	(1,339,327)	$ (2)	$ (1,339,325)
Net Realized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Currency Futures Contracts	22,793,178	26	22,793,152
Net Change in Unrealized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Currency Futures Contracts	2,097,892	3	2,097,889
Net Income (Loss)	23,551,743	27	23,551,716
Net Change in Shareholders' Equity, value	255,521,704	27	$ 255,521,677
Net Change in Shareholders' Equity, shares			9,000,000
Balance - Value at Mar. 31, 2022	$ 972,866,874	$ 1,052	$ 972,865,822
Balance - Shares at Mar. 31, 2022		40	37,000,000