Statements of Financial Condition (Parenthetical) - USD ($)	Dec. 31, 2023	Dec. 31, 2022
Investments in Securities, cost	$ 1,691,344,447	$ 2,697,401,369
US Treasury Bill Securities [Member]
Investments in Securities, cost	783,578,544	1,271,951,210
Affiliated Investments [Member]
Affiliated Investments, at Cost	$ 907,765,903	$ 1,425,450,159