v3.24.1.u1
Schedule of Investments - Futures Contracts Sold (Detail) - Futures Contracts [Member] - Contracts to Sell [Member]
Mar. 31, 2024
USD ($)
Contract
Dec. 31, 2023
USD ($)
ProShares Short VIX Short-Term Futures ETF [Member]    
Schedule of Investments [Line Items]    
Unrealized Appreciation (Depreciation) $ 8,013,037  
ProShares Short VIX Short-Term Futures ETF [Member] | VIX Futures - Cboe, expires April 2024 [Member]    
Schedule of Investments [Line Items]    
Number of Contracts | Contract 6,720  
Notional Amount at Value $ 96,557,664  
Unrealized Appreciation (Depreciation) $ 7,932,302  
ProShares Short VIX Short-Term Futures ETF [Member] | VIX Futures - Cboe, expires May 2024 [Member]    
Schedule of Investments [Line Items]    
Number of Contracts | Contract 3,920  
Notional Amount at Value $ 60,440,520  
Unrealized Appreciation (Depreciation) 80,735  
ProShares UltraShort Bloomberg Crude Oil [Member]    
Schedule of Investments [Line Items]    
Unrealized Appreciation (Depreciation) $ (11,995,111)  
ProShares UltraShort Bloomberg Crude Oil [Member] | WTI Crude Oil - NYMEX, expires June 2025 [Member]    
Schedule of Investments [Line Items]    
Number of Contracts | Contract 1,758  
Notional Amount at Value $ 131,252,280  
Unrealized Appreciation (Depreciation) $ (5,461,484)  
ProShares UltraShort Bloomberg Crude Oil [Member] | WTI Crude Oil - NYMEX, expires June 2024 [Member]    
Schedule of Investments [Line Items]    
Number of Contracts | Contract 1,601  
Notional Amount at Value $ 131,954,420  
Unrealized Appreciation (Depreciation) $ (6,262,875)  
ProShares UltraShort Bloomberg Crude Oil [Member] | WTI Crude Oil - NYMEX, expires December 2024 [Member]    
Schedule of Investments [Line Items]    
Number of Contracts | Contract 1,693  
Notional Amount at Value $ 131,783,120  
Unrealized Appreciation (Depreciation) $ (270,752)  
ProShares UltraShort Bloomberg Natural Gas [Member] | Natural Gas - NYMEX, expires May 2024 [Member]    
Schedule of Investments [Line Items]    
Number of Contracts | Contract 10,700  
Notional Amount at Value $ 188,641,000  
Unrealized Appreciation (Depreciation) $ 20,277,127  
ProShares UltraShort Gold [Member] | Gold Futures - COMEX, expires June 2024 [Member]    
Schedule of Investments [Line Items]    
Number of Contracts | Contract 55  
Notional Amount at Value   $ 12,311,200
Unrealized Appreciation (Depreciation) $ (207,050)  
ProShares UltraShort Silver [Member] | Silver Futures - COMEX, expires May 2024 [Member]    
Schedule of Investments [Line Items]    
Number of Contracts | Contract 163  
Notional Amount at Value $ 20,306,540  
Unrealized Appreciation (Depreciation) $ (61,220)