Statement of Changes in Shareholders' Equity (Unaudited) - USD ($)	Total	General Shares [Member]	Shares [Member]
Balance - Value at Dec. 31, 2022	$ 2,637,450,891	$ 986	$ 2,637,449,905
Balance - Shares at Dec. 31, 2022		40	107,000,000
Purchases of Shares - Value	176,116,800		$ 176,116,800
Purchases of Shares - Shares			7,450,000
Redemption of Shares - Value	(670,232,831)		$ (670,232,831)
Redemption of Shares - Shares			(28,500,000)
Net Increase (Decrease) due to Share Transactions, value	(494,116,031)		$ (494,116,031)
Net Increase (Decrease) due to Share Transactions, shares			(21,050,000)
Net Income (Loss)
Net Investment Income (Loss)	43,208,090	$ 17	$ 43,208,073
Net Realized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Commodity Futures Contracts	(215,376,359)	(87)	(215,376,272)
Net Change in Unrealized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Commodity Futures Contracts	(18,390,951)	(7)	(18,390,944)
Net Income (Loss)	(190,559,220)	(77)	(190,559,143)
Net Change in Shareholders' Equity, value	(684,675,251)	(77)	$ (684,675,174)
Net Change in Shareholders' Equity, shares			(21,050,000)
Balance - Value at Jun. 30, 2023	1,952,775,640	$ 909	$ 1,952,774,731
Balance - Shares at Jun. 30, 2023		40	85,950,000
Balance - Value at Mar. 31, 2023	2,166,917,671	$ 950	$ 2,166,916,721
Balance - Shares at Mar. 31, 2023		40	91,200,000
Purchases of Shares - Value	114,436,659		$ 114,436,659
Purchases of Shares - Shares			4,850,000
Redemption of Shares - Value	(233,587,859)		$ (233,587,859)
Redemption of Shares - Shares			(10,100,000)
Net Increase (Decrease) due to Share Transactions, value	(119,151,200)		$ (119,151,200)
Net Increase (Decrease) due to Share Transactions, shares			(5,250,000)
Net Income (Loss)
Net Investment Income (Loss)	21,316,765	$ 9	$ 21,316,756
Net Realized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Commodity Futures Contracts	(145,076,459)	(61)	(145,076,398)
Net Change in Unrealized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Commodity Futures Contracts	28,768,863	11	28,768,852
Net Income (Loss)	(94,990,831)	(41)	(94,990,790)
Net Change in Shareholders' Equity, value	(214,142,031)	(41)	$ (214,141,990)
Net Change in Shareholders' Equity, shares			(5,250,000)
Balance - Value at Jun. 30, 2023	1,952,775,640	$ 909	$ 1,952,774,731
Balance - Shares at Jun. 30, 2023		40	85,950,000
Balance - Value at Dec. 31, 2023	1,683,432,356	$ 882	$ 1,683,431,474
Balance - Shares at Dec. 31, 2023		40	76,350,000
Purchases of Shares - Value	156,614,262		$ 156,614,262
Purchases of Shares - Shares			6,850,000
Redemption of Shares - Value	(186,951,114)		$ (186,951,114)
Redemption of Shares - Shares			(8,300,000)
Net Increase (Decrease) due to Share Transactions, value	(30,336,852)		$ (30,336,852)
Net Increase (Decrease) due to Share Transactions, shares			(1,450,000)
Net Income (Loss)
Net Investment Income (Loss)	37,881,458	$ 21	$ 37,881,437
Net Realized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Commodity Futures Contracts	(42,185,603)	(23)	(42,185,580)
Net Change in Unrealized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Commodity Futures Contracts	92,735,389	50	92,735,339
Net Income (Loss)	88,431,244	48	88,431,196
Net Change in Shareholders' Equity, value	58,094,392	48	$ 58,094,344
Net Change in Shareholders' Equity, shares			(1,450,000)
Balance - Value at Jun. 30, 2024	1,741,526,748	$ 930	$ 1,741,525,818
Balance - Shares at Jun. 30, 2024		40	74,900,000
Balance - Value at Mar. 31, 2024	1,716,827,951	$ 919	$ 1,716,827,032
Balance - Shares at Mar. 31, 2024		40	74,700,000
Purchases of Shares - Value	78,485,537		$ 78,485,537
Purchases of Shares - Shares			3,350,000
Redemption of Shares - Value	(73,234,516)		$ (73,234,516)
Redemption of Shares - Shares			(3,150,000)
Net Increase (Decrease) due to Share Transactions, value	5,251,021		$ 5,251,021
Net Increase (Decrease) due to Share Transactions, shares			200,000
Net Income (Loss)
Net Investment Income (Loss)	19,159,846	$ 11	$ 19,159,835
Net Realized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Commodity Futures Contracts	(39,615,425)	(22)	(39,615,403)
Net Change in Unrealized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Commodity Futures Contracts	39,903,355	22	39,903,333
Net Income (Loss)	19,447,776	11	19,447,765
Net Change in Shareholders' Equity, value	24,698,797	11	$ 24,698,786
Net Change in Shareholders' Equity, shares			200,000
Balance - Value at Jun. 30, 2024	$ 1,741,526,748	$ 930	$ 1,741,525,818
Balance - Shares at Jun. 30, 2024		40	74,900,000