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	348,465,413		$ 348,465,413
Purchases of Shares - Shares			14,200,000
Redemption of Shares - Value	(294,350,661)		$ (294,350,661)
Redemption of Shares - Shares			(12,000,000)
Net Increase (Decrease) due to Share Transactions, value	54,114,752		$ 54,114,752
Net Increase (Decrease) due to Share Transactions, shares			2,200,000
Net Income (Loss)
Net Investment Income (Loss)	(1,314,226)	$ (3)	$ (1,314,223)
Net Realized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Currency Futures Contracts	(3,541,320)	(9)	(3,541,311)
Net Change in Unrealized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Currency Futures Contracts	14,580,555	36	14,580,519
Net Income (Loss)	9,725,009	24	9,724,985
Net Change in Shareholders' Equity, value	63,839,761	24	$ 63,839,737
Net Change in Shareholders' Equity, shares			2,200,000
Balance - Value at Jun. 30, 2021	430,025,576	$ 994	$ 430,024,582
Balance - Shares at Jun. 30, 2021		40	17,300,000
Balance - Value at Mar. 31, 2021	376,680,782	$ 1,004	$ 376,679,778
Balance - Shares at Mar. 31, 2021		40	15,000,000
Purchases of Shares - Value	132,105,243		$ 132,105,243
Purchases of Shares - Shares			5,400,000
Redemption of Shares - Value	(76,083,857)		$ (76,083,857)
Redemption of Shares - Shares			(3,100,000)
Net Increase (Decrease) due to Share Transactions, value	56,021,386		$ 56,021,386
Net Increase (Decrease) due to Share Transactions, shares			2,300,000
Net Income (Loss)
Net Investment Income (Loss)	(695,230)	$ (1)	$ (695,229)
Net Realized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Currency Futures Contracts	(6,643,197)	(18)	(6,643,179)
Net Change in Unrealized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Currency Futures Contracts	4,661,835	9	4,661,826
Net Income (Loss)	(2,676,592)	(10)	(2,676,582)
Net Change in Shareholders' Equity, value	53,344,794	(10)	$ 53,344,804
Net Change in Shareholders' Equity, shares			2,300,000
Balance - Value at Jun. 30, 2021	430,025,576	$ 994	$ 430,024,582
Balance - Shares at Jun. 30, 2021		40	17,300,000
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	1,313,865,239		$ 1,313,865,239
Purchases of Shares - Shares			48,700,000
Redemption of Shares - Value	(400,567,149)		$ (400,567,149)
Redemption of Shares - Shares			(15,000,000)
Net Increase (Decrease) due to Share Transactions, value	913,298,090		$ 913,298,090
Net Increase (Decrease) due to Share Transactions, shares			33,700,000
Net Income (Loss)
Net Investment Income (Loss)	(1,145,313)	$ (1)	$ (1,145,312)
Net Realized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Currency Futures Contracts	61,560,280	61	61,560,219
Net Change in Unrealized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Currency Futures Contracts	32,916,554	33	32,916,521
Net Income (Loss)	93,331,521	93	93,331,428
Net Change in Shareholders' Equity, value	1,006,629,611	93	$ 1,006,629,518
Net Change in Shareholders' Equity, shares			33,700,000
Balance - Value at Jun. 30, 2022	1,723,974,781	$ 1,118	$ 1,723,973,663
Balance - Shares at Jun. 30, 2022		40	61,700,000
Balance - Value at Mar. 31, 2022	972,866,874	$ 1,052	$ 972,865,822
Balance - Shares at Mar. 31, 2022		40	37,000,000
Purchases of Shares - Value	909,513,904		$ 909,513,904
Purchases of Shares - Shares			33,000,000
Redemption of Shares - Value	(228,185,775)		$ (228,185,775)
Redemption of Shares - Shares			(8,300,000)
Net Increase (Decrease) due to Share Transactions, value	681,328,129		$ 681,328,129
Net Increase (Decrease) due to Share Transactions, shares			24,700,000
Net Income (Loss)
Net Investment Income (Loss)	194,014	$ 1	$ 194,013
Net Realized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Currency Futures Contracts	38,767,102	35	38,767,067
Net Change in Unrealized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Currency Futures Contracts	30,818,662	30	30,818,632
Net Income (Loss)	69,779,778	66	69,779,712
Net Change in Shareholders' Equity, value	751,107,907	66	$ 751,107,841
Net Change in Shareholders' Equity, shares			24,700,000
Balance - Value at Jun. 30, 2022	$ 1,723,974,781	$ 1,118	$ 1,723,973,663
Balance - Shares at Jun. 30, 2022		40	61,700,000