Statement of Changes in Shareholders' Equity - USD ($)	Total	General Shares [Member]	Shares [Member]
Balance - Value at Dec. 31, 2020	$ 1,341,324,637	$ 586	$ 1,341,324,051
Balance - Shares at Dec. 31, 2020		40	91,500,000
Purchases of Shares - Value	1,798,847,084		$ 1,798,847,084
Purchases of Shares - Shares			97,500,000
Redemption of Shares - Value	(1,169,186,522)		$ (1,169,186,522)
Redemption of Shares - Shares			(62,100,000)
Net Increase (Decrease) due to Share Transactions, value	629,660,562		$ 629,660,562
Net Increase (Decrease) due to Share Transactions, shares			35,400,000
Net Income (Loss)
Net Investment Income (Loss)	(19,067,689)	$ (7)	$ (19,067,682)
Net Realized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Commodity Futures Contracts	663,208,727	245	663,208,482
Net Change in Unrealized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Commodity Futures Contracts	14,418,878	5	14,418,873
Net Income (Loss)	658,559,916	243	658,559,673
Net Change in Shareholders' Equity, value	1,288,220,478	243	$ 1,288,220,235
Net Change in Shareholders' Equity, shares			35,400,000
Balance - Value at Dec. 31, 2021	2,629,545,115	$ 829	$ 2,629,544,286
Balance - Shares at Dec. 31, 2021		40	126,900,000
Purchases of Shares - Value	2,336,302,006		$ 2,336,302,006
Purchases of Shares - Shares			92,400,000
Redemption of Shares - Value	(2,864,026,655)		$ (2,864,026,655)
Redemption of Shares - Shares			(112,300,000)
Net Increase (Decrease) due to Share Transactions, value	(527,724,649)		$ (527,724,649)
Net Increase (Decrease) due to Share Transactions, shares			(19,900,000)
Return of Capital Distributions	(16,159,645)	$ (6)	$ (16,159,639)
Net Income (Loss)
Net Investment Income (Loss)	19,356,347	7	19,356,340
Net Realized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Commodity Futures Contracts	732,256,477	215	732,256,262
Net Change in Unrealized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Commodity Futures Contracts	(199,822,754)	(59)	(199,822,695)
Net Income (Loss)	551,790,070	163	551,789,907
Net Change in Shareholders' Equity, value	7,905,776	157	$ 7,905,619
Net Change in Shareholders' Equity, shares			(19,900,000)
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	370,325,566		$ 370,325,566
Purchases of Shares - Shares			15,400,000
Redemption of Shares - Value	(1,087,834,781)		$ (1,087,834,781)
Redemption of Shares - Shares			(46,050,000)
Net Increase (Decrease) due to Share Transactions, value	(717,509,215)		$ (717,509,215)
Net Increase (Decrease) due to Share Transactions, shares			(30,650,000)
Return of Capital Distributions	(84,798,935)	$ (44)	$ (84,798,891)
Net Income (Loss)
Net Investment Income (Loss)	90,199,945	46	90,199,899
Net Realized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Commodity Futures Contracts	(248,497,642)	(109)	(248,497,533)
Net Change in Unrealized Gain (Loss) on United States Treasury Obligations, Affiliated Investments and Commodity Futures Contracts	6,587,312	3	6,587,309
Net Income (Loss)	(151,710,385)	(60)	(151,710,325)
Net Change in Shareholders' Equity, value	(954,018,535)	(104)	$ (954,018,431)
Net Change in Shareholders' Equity, shares			(30,650,000)
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