v3.24.0.1
Schedule of Investments - Short-Term U.S. Government and Agency Obligations (Detail) - U.S. Government Agencies Short-term Debt Securities [Member] - USD ($)
Dec. 31, 2023
Dec. 31, 2022
Schedule of Investments [Line Items]    
Short-term U.S. government and agency obligations, value $ 690,474,277 $ 1,466,680,542
ProShares Short VIX Short-Term Futures ETF [Member]    
Schedule of Investments [Line Items]    
Short-term U.S. government and agency obligations, value 109,410,342 144,307,676
ProShares Short VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 3.807% due 01/03/23 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1]   50,000,000
Short-term U.S. government and agency obligations, value [1]   49,995,780
ProShares Short VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 4.037% due 02/07/23 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1]   20,000,000
Short-term U.S. government and agency obligations, value [1]   19,923,876
ProShares Short VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 4.268% due 02/23/23 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1]   25,000,000
Short-term U.S. government and agency obligations, value [1]   24,849,655
ProShares Short VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 4.258% due 03/09/23 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1]   25,000,000
Short-term U.S. government and agency obligations, value [1]   24,808,837
ProShares Short VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 4.401% due 04/04/23 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1]   25,000,000
Short-term U.S. government and agency obligations, value [1]   24,729,528
ProShares Short VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 5.442% due 01/18/24 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1] 25,000,000  
Short-term U.S. government and agency obligations, value [1] 24,941,223  
ProShares Short VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 5.345% due 02/01/24 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1] 50,000,000  
Short-term U.S. government and agency obligations, value [1] 49,780,000  
ProShares Short VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 5.417% due 02/20/24 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1] 15,000,000  
Short-term U.S. government and agency obligations, value [1] 14,892,507  
ProShares Short VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 5.382% due 03/12/24 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1] 20,000,000  
Short-term U.S. government and agency obligations, value [1] 19,796,612  
ProShares Ultra Bloomberg Crude Oil [Member]    
Schedule of Investments [Line Items]    
Short-term U.S. government and agency obligations, value 233,476,941 313,465,007
ProShares Ultra Bloomberg Crude Oil [Member] | U.S. Treasury Bills 3.807% due 01/03/23 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1]   100,000,000
Short-term U.S. government and agency obligations, value [1]   99,991,560
ProShares Ultra Bloomberg Crude Oil [Member] | U.S. Treasury Bills 4.037% due 02/07/23 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1],[2]   40,000,000
Short-term U.S. government and agency obligations, value [1],[2]   39,847,752
ProShares Ultra Bloomberg Crude Oil [Member] | U.S. Treasury Bills 4.268% due 02/23/23 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1],[2]   75,000,000
Short-term U.S. government and agency obligations, value [1],[2]   74,548,965
ProShares Ultra Bloomberg Crude Oil [Member] | U.S. Treasury Bills 4.258% due 03/09/23 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1],[2]   50,000,000
Short-term U.S. government and agency obligations, value [1],[2]   49,617,675
ProShares Ultra Bloomberg Crude Oil [Member] | U.S. Treasury Bills 4.401% due 04/04/23 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1],[2]   50,000,000
Short-term U.S. government and agency obligations, value [1],[2]   49,459,055
ProShares Ultra Bloomberg Crude Oil [Member] | U.S. Treasury Bills 5.442% due 01/18/24 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1] 40,000,000  
Short-term U.S. government and agency obligations, value [1] 39,905,956  
ProShares Ultra Bloomberg Crude Oil [Member] | U.S. Treasury Bills 5.345% due 02/01/24 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1],[2] 70,000,000  
Short-term U.S. government and agency obligations, value [1],[2] 69,692,000  
ProShares Ultra Bloomberg Crude Oil [Member] | U.S. Treasury Bills 5.417% due 02/20/24 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1],[2] 50,000,000  
Short-term U.S. government and agency obligations, value [1],[2] 49,641,690  
ProShares Ultra Bloomberg Crude Oil [Member] | U.S. Treasury Bills 5.382% due 03/12/24 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1] 75,000,000  
Short-term U.S. government and agency obligations, value [1] 74,237,295  
ProShares Ultra Bloomberg Natural Gas [Member]    
Schedule of Investments [Line Items]    
Short-term U.S. government and agency obligations, value 64,459,117 263,260,158
ProShares Ultra Bloomberg Natural Gas [Member] | U.S. Treasury Bills 3.807% due 01/03/23 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1]   35,000,000
Short-term U.S. government and agency obligations, value [1]   34,997,046
ProShares Ultra Bloomberg Natural Gas [Member] | U.S. Treasury Bills 4.037% due 02/07/23 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1]   40,000,000
Short-term U.S. government and agency obligations, value [1]   39,847,752
ProShares Ultra Bloomberg Natural Gas [Member] | U.S. Treasury Bills 4.268% due 02/23/23 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1]   65,000,000
Short-term U.S. government and agency obligations, value [1]   64,609,103
ProShares Ultra Bloomberg Natural Gas [Member] | U.S. Treasury Bills 4.258% due 03/09/23 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1]   50,000,000
Short-term U.S. government and agency obligations, value [1]   49,617,675
ProShares Ultra Bloomberg Natural Gas [Member] | U.S. Treasury Bills 4.401% due 04/04/23 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1]   75,000,000
Short-term U.S. government and agency obligations, value [1]   74,188,582
ProShares Ultra Bloomberg Natural Gas [Member] | U.S. Treasury Bills 5.417% due 02/20/24 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1] 40,000,000  
Short-term U.S. government and agency obligations, value [1] 39,713,352  
ProShares Ultra Bloomberg Natural Gas [Member] | U.S. Treasury Bills 5.382% due 03/12/24 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1] 25,000,000  
Short-term U.S. government and agency obligations, value [1] 24,745,765  
ProShares Ultra Gold [Member]    
Schedule of Investments [Line Items]    
Short-term U.S. government and agency obligations, value 59,507,594 129,123,489
ProShares Ultra Gold [Member] | U.S. Treasury Bills 4.037% due 02/07/23 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1]   30,000,000
Short-term U.S. government and agency obligations, value [1]   29,885,814
ProShares Ultra Gold [Member] | U.S. Treasury Bills 4.268% due 02/23/23 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1],[2]   50,000,000
Short-term U.S. government and agency obligations, value [1],[2]   49,699,310
ProShares Ultra Gold [Member] | U.S. Treasury Bills 4.258% due 03/09/23 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1]   25,000,000
Short-term U.S. government and agency obligations, value [1]   24,808,838
ProShares Ultra Gold [Member] | U.S. Treasury Bills 4.401% due 04/04/23 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1]   25,000,000
Short-term U.S. government and agency obligations, value [1]   24,729,527
ProShares Ultra Gold [Member] | U.S. Treasury Bills 5.345% due 02/01/24 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1] 10,000,000  
Short-term U.S. government and agency obligations, value [1] 9,956,000  
ProShares Ultra Gold [Member] | U.S. Treasury Bills 5.417% due 02/20/24 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1],[2] 20,000,000  
Short-term U.S. government and agency obligations, value [1],[2] 19,856,676  
ProShares Ultra Gold [Member] | U.S. Treasury Bills 5.382% due 03/12/24 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1],[2] 30,000,000  
Short-term U.S. government and agency obligations, value [1],[2] 29,694,918  
ProShares Ultra Silver [Member]    
Schedule of Investments [Line Items]    
Short-term U.S. government and agency obligations, value 114,276,025 228,657,634
ProShares Ultra Silver [Member] | U.S. Treasury Bills 3.807% due 01/03/23 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1]   50,000,000
Short-term U.S. government and agency obligations, value [1]   49,995,780
ProShares Ultra Silver [Member] | U.S. Treasury Bills 4.037% due 02/07/23 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1]   30,000,000
Short-term U.S. government and agency obligations, value [1]   29,885,814
ProShares Ultra Silver [Member] | U.S. Treasury Bills 4.268% due 02/23/23 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1],[2]   50,000,000
Short-term U.S. government and agency obligations, value [1],[2]   49,699,310
ProShares Ultra Silver [Member] | U.S. Treasury Bills 4.258% due 03/09/23 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1],[2]   50,000,000
Short-term U.S. government and agency obligations, value [1],[2]   49,617,675
ProShares Ultra Silver [Member] | U.S. Treasury Bills 4.401% due 04/04/23 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1],[2]   50,000,000
Short-term U.S. government and agency obligations, value [1],[2]   49,459,055
ProShares Ultra Silver [Member] | U.S. Treasury Bills 5.442% due 01/18/24 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1] 40,000,000  
Short-term U.S. government and agency obligations, value [1] 39,905,956  
ProShares Ultra Silver [Member] | U.S. Treasury Bills 5.345% due 02/01/24 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1],[2] 10,000,000  
Short-term U.S. government and agency obligations, value [1],[2] 9,956,000  
ProShares Ultra Silver [Member] | U.S. Treasury Bills 5.417% due 02/20/24 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1],[2] 25,000,000  
Short-term U.S. government and agency obligations, value [1],[2] 24,820,845  
ProShares Ultra Silver [Member] | U.S. Treasury Bills 5.382% due 03/12/24 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1],[2] 40,000,000  
Short-term U.S. government and agency obligations, value [1],[2] 39,593,224  
ProShares Ultra VIX Short-Term Futures ETF [Member]    
Schedule of Investments [Line Items]    
Short-term U.S. government and agency obligations, value 0 34,732,372
ProShares Ultra VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 4.258% due 03/09/23 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1]   35,000,000
Short-term U.S. government and agency obligations, value [1]   34,732,372
ProShares UltraShort Bloomberg Crude Oil [Member]    
Schedule of Investments [Line Items]    
Short-term U.S. government and agency obligations, value 49,683,885 89,426,935
ProShares UltraShort Bloomberg Crude Oil [Member] | U.S. Treasury Bills 4.037% due 02/07/23 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1]   40,000,000
Short-term U.S. government and agency obligations, value [1]   39,847,752
ProShares UltraShort Bloomberg Crude Oil [Member] | U.S. Treasury Bills 4.268% due 02/23/23 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1]   25,000,000
Short-term U.S. government and agency obligations, value [1]   24,849,655
ProShares UltraShort Bloomberg Crude Oil [Member] | U.S. Treasury Bills 4.401% due 04/04/23 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1]   25,000,000
Short-term U.S. government and agency obligations, value [1]   24,729,528
ProShares UltraShort Bloomberg Crude Oil [Member] | U.S. Treasury Bills 5.442% due 01/18/24 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1] 15,000,000  
Short-term U.S. government and agency obligations, value [1] 14,964,734  
ProShares UltraShort Bloomberg Crude Oil [Member] | U.S. Treasury Bills 5.417% due 02/20/24 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1] 25,000,000  
Short-term U.S. government and agency obligations, value [1] 24,820,845  
ProShares UltraShort Bloomberg Crude Oil [Member] | U.S. Treasury Bills 5.382% due 03/12/24 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1] 10,000,000  
Short-term U.S. government and agency obligations, value [1] 9,898,306  
ProShares UltraShort Bloomberg Natural Gas [Member]    
Schedule of Investments [Line Items]    
Short-term U.S. government and agency obligations, value 0 61,482,526
ProShares UltraShort Bloomberg Natural Gas [Member] | U.S. Treasury Bills 4.268% due 02/23/23 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1]   22,000,000
Short-term U.S. government and agency obligations, value [1]   21,867,696
ProShares UltraShort Bloomberg Natural Gas [Member] | U.S. Treasury Bills 4.258% due 03/09/23 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1]   15,000,000
Short-term U.S. government and agency obligations, value [1]   14,885,303
ProShares UltraShort Bloomberg Natural Gas [Member] | U.S. Treasury Bills 4.401% due 04/04/23 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1]   25,000,000
Short-term U.S. government and agency obligations, value [1]   24,729,527
ProShares UltraShort Euro [Member]    
Schedule of Investments [Line Items]    
Short-term U.S. government and agency obligations, value 0 39,996,624
ProShares UltraShort Euro [Member] | U.S. Treasury Bills 3.807% due 01/03/23 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1],[3]   40,000,000
Short-term U.S. government and agency obligations, value [1],[3]   39,996,624
ProShares UltraShort Yen [Member]    
Schedule of Investments [Line Items]    
Short-term U.S. government and agency obligations, value 0 22,998,059
ProShares UltraShort Yen [Member] | U.S. Treasury Bills 3.807% due 01/03/23 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1]   23,000,000
Short-term U.S. government and agency obligations, value [1]   22,998,059
ProShares VIX Mid-Term Futures ETF [Member]    
Schedule of Investments [Line Items]    
Short-term U.S. government and agency obligations, value 0 49,882,348
ProShares VIX Mid-Term Futures ETF [Member] | U.S. Treasury Bills 3.807% due 01/03/23 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1]   35,000,000
Short-term U.S. government and agency obligations, value [1]   34,997,046
ProShares VIX Mid-Term Futures ETF [Member] | U.S. Treasury Bills 4.258% due 03/09/23 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1]   15,000,000
Short-term U.S. government and agency obligations, value [1]   14,885,302
ProShares VIX Short-Term Futures ETF [Member]    
Schedule of Investments [Line Items]    
Short-term U.S. government and agency obligations, value 59,660,373 89,347,714
ProShares VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 4.037% due 02/07/23 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1]   30,000,000
Short-term U.S. government and agency obligations, value [1]   29,885,814
ProShares VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 4.258% due 03/09/23 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1]   35,000,000
Short-term U.S. government and agency obligations, value [1]   34,732,372
ProShares VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 4.401% due 04/04/23 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1]   25,000,000
Short-term U.S. government and agency obligations, value [1]   $ 24,729,528
ProShares VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 5.442% due 01/18/24 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1] 25,000,000  
Short-term U.S. government and agency obligations, value [1] 24,941,222  
ProShares VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 5.417% due 02/20/24 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1] 25,000,000  
Short-term U.S. government and agency obligations, value [1] 24,820,845  
ProShares VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 5.382% due 03/12/24 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1] 10,000,000  
Short-term U.S. government and agency obligations, value [1] $ 9,898,306  
[1] Rates shown represent discount rate at the time of purchase.
[2] All or partial amount pledged as collateral for swap agreements.
[3] All or partial amount pledged as collateral for foreign currency forward contracts.