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Condensed Schedule of Investments (Parenthetical) | 6 Months Ended
--- | ---
Jun. 30, 2016 USD ($)
Collateral Amount On Open Futures Contracts | $ 624,604,749
United States [Member] | US Treasury Bill Securities One [Member] | US Treasury Securities [Member] | Cash Equivalent [Member] |
Interest rate | 0.32%
Expiration date | 07/07/2016
United States [Member] | US Treasury Bill Securities Two [Member] | US Treasury Securities [Member] | Cash Equivalent [Member] |
Interest rate | 0.32%
Expiration date | 07/14/2016
United States [Member] | US Treasury Bill Securities Three [Member] | US Treasury Securities [Member] | Cash Equivalent [Member] |
Interest rate | 0.38%
Expiration date | 07/21/2016
United States [Member] | US Treasury Bill Securities Four [Member] | US Treasury Securities [Member] | Cash Equivalent [Member] |
Interest rate | 0.43%
Expiration date | 07/28/2016
United States [Member] | US Treasury Bill Securities Five [Member] | US Treasury Securities [Member] | Cash Equivalent [Member] |
Interest rate | 0.42%
Expiration date | 08/04/2016
United States [Member] | US Treasury Bill Securities Six [Member] | US Treasury Securities [Member] | Cash Equivalent [Member] |
Interest rate | 0.41%
Expiration date | 08/11/2016
United States [Member] | US Treasury Bill Securities Seven [Member] | US Treasury Securities [Member] | Cash Equivalent [Member] |
Interest rate | 0.43%
Expiration date | 08/18/2016
United States [Member] | US Treasury Bill Securities Eight [Member] | US Treasury Securities [Member] | Cash Equivalent [Member] |
Interest rate | 0.45%
Expiration date | 08/25/2016
United States [Member] | US Treasury Bill Securities Nine [Member] | US Treasury Securities [Member] | Cash Equivalent [Member] |
Interest rate | 0.48%
Expiration date | 09/01/2016
United States [Member] | US Treasury Bill Securities Ten [Member] | US Treasury Securities [Member] | Cash Equivalent [Member] |
Interest rate | 0.46%
Expiration date | 09/08/2016
United States [Member] | US Treasury Bill Securities Eleven [Member] | US Treasury Securities [Member] | Cash Equivalent [Member] |
Interest rate | 0.45%
Expiration date | 09/15/2016
United States [Member] | US Treasury Bill Securities Twelve [Member] | US Treasury Securities [Member] | Cash Equivalent [Member] |
Interest rate | 0.44%
Expiration date | 09/22/2016
United States [Member] | US Treasury Bill Securities Thirteen [Member] | US Treasury Securities [Member] | Cash Equivalent [Member] |
Interest rate | 0.38%
Expiration date | 09/29/2016
United States [Member] | US Treasury Bill Securities Fourteen [Member] | US Treasury Securities [Member] | Cash Equivalent [Member] |
Interest rate | 0.34%
Expiration date | 10/06/2016
United States [Member] | US Treasury Bill Securities Fifteen [Member] | US Treasury Securities [Member] | Cash Equivalent [Member] |
Interest rate | 0.35%
Expiration date | 10/13/2016
United States [Member] | US Treasury Bill Securities Sixteen [Member] | US Treasury Securities [Member] | Cash Equivalent [Member] |
Interest rate | 0.34%
Expiration date | 10/20/2016
United States [Member] | US Treasury Bill Securities Seventeen [Member] | US Treasury Securities [Member] | Cash Equivalent [Member] |
Interest rate | 0.39%
Expiration date | 10/27/2016
United States [Member] | US Treasury Bill Securities Eighteen [Member] | US Treasury Securities [Member] | Cash Equivalent [Member] |
Interest rate | 0.37%
Expiration date | 11/03/2016
United States [Member] | US Treasury Bill Securities Nineteen [Member] | US Treasury Securities [Member] | Cash Equivalent [Member] |
Interest rate | 0.36%
Expiration date | 11/10/2016
United States [Member] | US Treasury Bill Securities Twenty [Member] | US Treasury Securities [Member] | Cash Equivalent [Member] |
Interest rate | 0.39%
Expiration date | 11/17/2016
United States [Member] | US Treasury Bill Securities Twenty One [Member] | US Treasury Securities [Member] | Cash Equivalent [Member] |
Interest rate | 0.46%
Expiration date | 11/25/2016
United States [Member] | US Treasury Bill Securities Twenty Two [Member] | US Treasury Securities [Member] | Cash Equivalent [Member] |
Interest rate | 0.47%
Expiration date | 12/01/2016
United States [Member] | US Treasury Bill Securities Twenty Three [Member] | US Treasury Securities [Member] | Cash Equivalent [Member] |
Interest rate | 0.41%
Expiration date | 12/08/2016
United States [Member] | US Treasury Bill Securities Twenty Four [Member] | US Treasury Securities [Member] | Cash Equivalent [Member] |
Interest rate | 0.34%
Expiration date | 12/15/2016
United States [Member] | US Treasury Bill Securities Twenty Five [Member] | US Treasury Securities [Member] | Cash Equivalent [Member] |
Interest rate | 0.34%
Expiration date | 12/22/2016
United States [Member] | US Treasury Bill Securities Twenty Six [Member] | US Treasury Securities [Member] | Cash Equivalent [Member] |
Interest rate | 0.34%
Expiration date | 12/29/2016

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