|ProShares Trust II - ProShares Ultra Bloomberg Natural Gas|
|The manager intends to meet its investment objective by taking long or short positions in natural gas futures contracts.
The Natural Gas Funds may also invest in swaps if the market for a specific futures contract experiences emergencies (e.g., natural disaster, terrorist attack or an act of God) or disruptions (e.g., a trading halt or a flash crash) that prevent the Natural Gas Fund from obtaining the appropriate amount of investment exposure to the affected natural gas futures contracts directly or other futures contracts.|
| ||BOIL||Category Avg|
|Annual Report Expense Ratio (net)||1.13%||N/A|
|Annual Holdings Turnover||NaN||N/A|
|Total Net Assets||NaN||N/A|