Statements of Financial Condition (Parenthetical) - USD ($)	Dec. 31, 2023	Dec. 31, 2022
Investments in Securities, cost	$ 710,204,874	$ 1,089,144,428
US Treasury Bill Securities [Member]
Investments in Securities, cost	342,604,310	571,517,656
Affiliated Investments [Member]
Affiliated Investments, at Cost	$ 367,600,564	$ 517,626,772