v3.24.0.1
Schedule of Investments - Futures Contracts Sold (Detail) - Futures Contracts [Member] - Contracts to Sell [Member]
Dec. 31, 2023
USD ($)
Contract
Dec. 31, 2022
USD ($)
Contract
ProShares Short VIX Short-Term Futures ETF [Member]    
Schedule of Investments [Line Items]    
Unrealized Appreciation (Depreciation) $ 12,640,624 $ 11,092,381
ProShares Short VIX Short-Term Futures ETF [Member] | VIX Futures - Cboe, expires January 2023 [Member]    
Schedule of Investments [Line Items]    
Number of Contracts | Contract   4,215
Notional Amount at Value   $ 97,358,492
Unrealized Appreciation (Depreciation)   $ 10,597,402
ProShares Short VIX Short-Term Futures ETF [Member] | VIX Futures - Cboe, expires February 2023 [Member]    
Schedule of Investments [Line Items]    
Number of Contracts | Contract   2,951
Notional Amount at Value   $ 72,433,180
Unrealized Appreciation (Depreciation)   494,979
ProShares Short VIX Short-Term Futures ETF [Member] | VIX Futures - Cboe, expires January 2024 [Member]    
Schedule of Investments [Line Items]    
Number of Contracts | Contract 5,412  
Notional Amount at Value $ 76,045,095  
Unrealized Appreciation (Depreciation) $ 10,168,009  
ProShares Short VIX Short-Term Futures ETF [Member] | VIX Futures - Cboe, expires February 2024 [Member]    
Schedule of Investments [Line Items]    
Number of Contracts | Contract 3,778  
Notional Amount at Value $ 57,786,021  
Unrealized Appreciation (Depreciation) 2,472,615  
ProShares UltraShort Bloomberg Crude Oil [Member]    
Schedule of Investments [Line Items]    
Unrealized Appreciation (Depreciation) $ 22,436,319 $ 10,244,893
ProShares UltraShort Bloomberg Crude Oil [Member] | WTI Crude Oil - NYMEX, expires March 2023 [Member]    
Schedule of Investments [Line Items]    
Number of Contracts | Contract   1,780
Notional Amount at Value   $ 143,201,000
Unrealized Appreciation (Depreciation)   $ (2,958,031)
ProShares UltraShort Bloomberg Crude Oil [Member] | WTI Crude Oil - NYMEX, expires June 2023 [Member]    
Schedule of Investments [Line Items]    
Number of Contracts | Contract   1,875
Notional Amount at Value   $ 150,375,000
Unrealized Appreciation (Depreciation)   $ 11,831,888
ProShares UltraShort Bloomberg Crude Oil [Member] | WTI Crude Oil - NYMEX, expires December 2023 [Member]    
Schedule of Investments [Line Items]    
Number of Contracts | Contract   1,963
Notional Amount at Value   $ 151,759,530
Unrealized Appreciation (Depreciation)   $ 1,371,036
ProShares UltraShort Bloomberg Crude Oil [Member] | WTI Crude Oil - NYMEX, expires March 2024 [Member]    
Schedule of Investments [Line Items]    
Number of Contracts | Contract 1,688  
Notional Amount at Value $ 121,265,920  
Unrealized Appreciation (Depreciation) $ 2,345,922  
ProShares UltraShort Bloomberg Crude Oil [Member] | WTI Crude Oil - NYMEX, expires June 2024 [Member]    
Schedule of Investments [Line Items]    
Number of Contracts | Contract 1,769  
Notional Amount at Value $ 127,580,280  
Unrealized Appreciation (Depreciation) $ 8,633,394  
ProShares UltraShort Bloomberg Crude Oil [Member] | WTI Crude Oil - NYMEX, expires December 2024 [Member]    
Schedule of Investments [Line Items]    
Number of Contracts | Contract 1,836  
Notional Amount at Value $ 129,070,800  
Unrealized Appreciation (Depreciation) $ 11,457,003  
ProShares UltraShort Bloomberg Natural Gas [Member] | Natural Gas - NYMEX, expires March 2023 [Member]    
Schedule of Investments [Line Items]    
Number of Contracts | Contract   6,533
Notional Amount at Value   $ 268,114,320
Unrealized Appreciation (Depreciation)   $ 85,889,398
ProShares UltraShort Bloomberg Natural Gas [Member] | Natural Gas—NYMEX, expires March 2024 [Member]    
Schedule of Investments [Line Items]    
Number of Contracts | Contract 12,109  
Notional Amount at Value $ 281,776,430  
Unrealized Appreciation (Depreciation) $ (3,553,507)  
ProShares UltraShort Gold [Member] | Gold Futures - COMEX, expires February 2024 [Member]    
Schedule of Investments [Line Items]    
Number of Contracts | Contract 31  
Notional Amount at Value $ 6,422,580  
Unrealized Appreciation (Depreciation) $ (144,231)  
ProShares UltraShort Gold [Member] | Gold Futures—COMEX, expires February 2023 [Member]    
Schedule of Investments [Line Items]    
Number of Contracts | Contract   35
Notional Amount at Value   $ 6,391,700
Unrealized Appreciation (Depreciation)   $ (98,886)
ProShares UltraShort Silver [Member] | Silver Futures—COMEX, expires March 2023 [Member]    
Schedule of Investments [Line Items]    
Number of Contracts | Contract   330
Notional Amount at Value   $ 39,666,000
Unrealized Appreciation (Depreciation)   $ (940,500)
ProShares UltraShort Silver [Member] | Silver Futures – COMEX, expires March 2024 [Member]    
Schedule of Investments [Line Items]    
Number of Contracts | Contract 610  
Notional Amount at Value $ 73,462,300  
Unrealized Appreciation (Depreciation) $ 1,689,046