Statements of Changes in Shareholders' Equity (Unaudited) - USD ($)	Total	General Shares [Member]	Shares [Member]
Balance - Value at Dec. 31, 2023	$ 388,681,113	$ 1,084	$ 388,680,029
Balance - Shares at Dec. 31, 2023		40	14,350,000
Purchases of Shares - Value	658,026,594		$ 658,026,594
Purchases of Shares - Shares			23,300,000
Redemption of Shares - Value	(742,731,997)		$ (742,731,997)
Redemption of Shares - Shares			(26,300,000)
Net Increase (Decrease) due to Share Transactions, value	(84,705,403)		$ (84,705,403)
Net Increase (Decrease) due to Share Transactions, shares			(3,000,000)
Net Income (Loss)
Net Investment Income (Loss)	13,036,935	$ 35	$ 13,036,900
Net Realized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Currency Futures Contracts	253,608	1	253,607
Net Change in Unrealized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Currency Futures Contracts	2,525,423	7	2,525,416
Net Income (Loss)	15,815,966	43	15,815,923
Net Change in Shareholders' Equity, value	(68,889,437)	43	$ (68,889,480)
Net Change in Shareholders' Equity, shares			(3,000,000)
Balance - Value at Sep. 30, 2024	319,791,676	$ 1,127	$ 319,790,549
Balance - Shares at Sep. 30, 2024		40	11,350,000
Balance - Value at Jun. 30, 2024	442,913,945	$ 1,166	$ 442,912,779
Balance - Shares at Jun. 30, 2024		40	15,200,000
Purchases of Shares - Value	198,623,278		$ 198,623,278
Purchases of Shares - Shares			7,050,000
Redemption of Shares - Value	(310,351,328)		$ (310,351,328)
Redemption of Shares - Shares			(10,900,000)
Net Increase (Decrease) due to Share Transactions, value	(111,728,050)		$ (111,728,050)
Net Increase (Decrease) due to Share Transactions, shares			(3,850,000)
Net Income (Loss)
Net Investment Income (Loss)	3,969,678	$ 8	$ 3,969,670
Net Realized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Currency Futures Contracts	(9,975,185)	(30)	(9,975,155)
Net Change in Unrealized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Currency Futures Contracts	(5,388,712)	(17)	(5,388,695)
Net Income (Loss)	(11,394,219)	(39)	(11,394,180)
Net Change in Shareholders' Equity, value	(123,122,269)	(39)	$ (123,122,230)
Net Change in Shareholders' Equity, shares			(3,850,000)
Balance - Value at Sep. 30, 2024	319,791,676	$ 1,127	$ 319,790,549
Balance - Shares at Sep. 30, 2024		40	11,350,000
Balance - Value at Dec. 31, 2024	429,544,547	$ 1,177	$ 429,543,370
Balance - Shares at Dec. 31, 2024		40	14,600,000
Purchases of Shares - Value	511,590,946		$ 511,590,946
Purchases of Shares - Shares			18,000,000
Redemption of Shares - Value	(762,677,527)		$ (762,677,527)
Redemption of Shares - Shares			(27,000,000)
Net Increase (Decrease) due to Share Transactions, value	(251,086,581)		$ (251,086,581)
Net Increase (Decrease) due to Share Transactions, shares			(9,000,000)
Net Income (Loss)
Net Investment Income (Loss)	7,745,509	$ 24	$ 7,745,485
Net Realized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Currency Futures Contracts	(25,007,032)	(79)	(25,006,953)
Net Change in Unrealized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Currency Futures Contracts	(7,200,031)	(22)	(7,200,009)
Net Income (Loss)	(24,461,554)	(77)	(24,461,477)
Net Change in Shareholders' Equity, value	(275,548,135)	(77)	$ (275,548,058)
Net Change in Shareholders' Equity, shares			(9,000,000)
Balance - Value at Sep. 30, 2025	153,996,412	$ 1,100	$ 153,995,312
Balance - Shares at Sep. 30, 2025		40	5,600,000
Balance - Value at Jun. 30, 2025	201,630,156	$ 1,075	$ 201,629,081
Balance - Shares at Jun. 30, 2025		40	7,500,000
Purchases of Shares - Value	83,830,420		$ 83,830,420
Purchases of Shares - Shares			3,050,000
Redemption of Shares - Value	(135,651,159)		$ (135,651,159)
Redemption of Shares - Shares			(4,950,000)
Net Increase (Decrease) due to Share Transactions, value	(51,820,739)		$ (51,820,739)
Net Increase (Decrease) due to Share Transactions, shares			(1,900,000)
Net Income (Loss)
Net Investment Income (Loss)	1,628,118	$ 2	$ 1,628,116
Net Realized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Currency Futures Contracts	(936,900)	7	(936,907)
Net Change in Unrealized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Currency Futures Contracts	3,495,777	16	3,495,761
Net Income (Loss)	4,186,995	25	4,186,970
Net Change in Shareholders' Equity, value	(47,633,744)	25	$ (47,633,769)
Net Change in Shareholders' Equity, shares			(1,900,000)
Balance - Value at Sep. 30, 2025	$ 153,996,412	$ 1,100	$ 153,995,312
Balance - Shares at Sep. 30, 2025		40	5,600,000