v3.24.3
Schedule of Investments - Short-Term U.S. Government and Agency Obligations (Detail) - U.S. Government Agencies Short-term Debt Securities [Member] - USD ($)
Jun. 30, 2024
Dec. 31, 2023
Schedule of Investments [Line Items]    
Short-term U.S. government and agency obligations, value $ 1,566,273,968 $ 690,474,277
ProShares Short VIX Short-Term Futures ETF [Member]    
Schedule of Investments [Line Items]    
Short-term U.S. government and agency obligations, value 169,047,283 109,410,342
ProShares Short VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 5.288% due 07/09/24 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1] 80,000,000  
Short-term U.S. government and agency obligations, value [1] 79,906,936  
ProShares Short VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 5.321% due 09/05/24 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1] 90,000,000  
Short-term U.S. government and agency obligations, value [1] 89,140,347  
ProShares Ultra Bloomberg Crude Oil [Member]    
Schedule of Investments [Line Items]    
Short-term U.S. government and agency obligations, value 387,833,913 233,476,941
ProShares Ultra Bloomberg Crude Oil [Member] | U.S. Treasury Bills 5.349% due 07/09/24 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1],[2] 90,000,000  
Short-term U.S. government and agency obligations, value [1],[2] 89,895,303  
ProShares Ultra Bloomberg Crude Oil [Member] | U.S. Treasury Bills 5.311% due 08/08/24 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1],[2] 200,000,000  
Short-term U.S. government and agency obligations, value [1],[2] 198,893,780  
ProShares Ultra Bloomberg Crude Oil [Member] | U.S. Treasury Bills 5.310% due 09/05/24 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1],[2] 100,000,000  
Short-term U.S. government and agency obligations, value [1],[2] 99,044,830  
ProShares Ultra Gold [Member]    
Schedule of Investments [Line Items]    
Short-term U.S. government and agency obligations, value 194,012,992 59,507,594
ProShares Ultra Gold [Member] | U.S. Treasury Bills 5.309% due 07/09/24 [Member].    
Schedule of Investments [Line Items]    
Principal Amount [1],[2] 90,000,000  
Short-term U.S. government and agency obligations, value [1],[2] 89,895,303  
ProShares Ultra Gold [Member] | U.S. Treasury Bills 5.311% due 08/08/24 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1],[2] 30,000,000  
Short-term U.S. government and agency obligations, value [1],[2] 29,834,067  
ProShares Ultra Gold [Member] | U.S. Treasury Bills 5.315% due 09/05/24 [Member].    
Schedule of Investments [Line Items]    
Principal Amount [1],[2] 75,000,000  
Short-term U.S. government and agency obligations, value [1],[2] 74,283,622  
ProShares Ultra Silver [Member]    
Schedule of Investments [Line Items]    
Short-term U.S. government and agency obligations, value 457,266,538 114,276,025
ProShares Ultra Silver [Member] | U.S. Treasury Bills 5.290% due 07/09/24 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1],[2] 150,000,000  
Short-term U.S. government and agency obligations, value [1],[2] 149,825,505  
ProShares Ultra Silver [Member] | U.S. Treasury Bills 5.311% due 08/08/24 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1],[2] 100,000,000  
Short-term U.S. government and agency obligations, value [1],[2] 99,446,890  
ProShares Ultra Silver [Member] | U.S. Treasury Bills 5.326% due 09/05/24 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1],[2] 210,000,000  
Short-term U.S. government and agency obligations, value [1],[2] 207,994,143  
ProShares Ultra VIX Short-Term Futures ETF [Member]    
Schedule of Investments [Line Items]    
Short-term U.S. government and agency obligations, value 49,941,835 0
ProShares Ultra VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 5.304% due 07/09/24 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1] 50,000,000  
Short-term U.S. government and agency obligations, value [1] 49,941,835  
ProShares UltraShort Bloomberg Crude Oil [Member]    
Schedule of Investments [Line Items]    
Short-term U.S. government and agency obligations, value 104,416,492 49,683,885
ProShares UltraShort Bloomberg Crude Oil [Member] | U.S. Treasury Bills 5.304% due 07/09/24 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1] 50,000,000  
Short-term U.S. government and agency obligations, value [1] 49,941,835  
ProShares UltraShort Bloomberg Crude Oil [Member] | U.S. Treasury Bills 5.327% due 09/05/24 [Member].    
Schedule of Investments [Line Items]    
Principal Amount [1] 55,000,000  
Short-term U.S. government and agency obligations, value [1] 54,474,657  
ProShares UltraShort Bloomberg Natural Gas [Member]    
Schedule of Investments [Line Items]    
Short-term U.S. government and agency obligations, value 89,475,883 0
ProShares UltraShort Bloomberg Natural Gas [Member] | U.S. Treasury Bills 5.260% due 07/09/24 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1] 40,000,000  
Short-term U.S. government and agency obligations, value [1] 39,953,468  
ProShares UltraShort Bloomberg Natural Gas [Member] | U.S. Treasury Bills 5.354% due 09/05/24 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1] 50,000,000  
Short-term U.S. government and agency obligations, value [1] 49,522,415  
ProShares VIX Mid-Term Futures ETF [Member]    
Schedule of Investments [Line Items]    
Short-term U.S. government and agency obligations, value 49,522,415 0
ProShares VIX Mid-Term Futures ETF [Member] | U.S. Treasury Bills 5.295% due 09/05/24 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1] 50,000,000  
Short-term U.S. government and agency obligations, value [1] 49,522,415  
ProShares VIX Short-Term Futures ETF [Member]    
Schedule of Investments [Line Items]    
Short-term U.S. government and agency obligations, value 64,756,617 $ 59,660,373
ProShares VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 5.300% due 07/09/24 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1] 45,000,000  
Short-term U.S. government and agency obligations, value [1] 44,947,651  
ProShares VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 5.354% due 09/05/24 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1] 20,000,000  
Short-term U.S. government and agency obligations, value [1] $ 19,808,966  
[1] Rates shown represent discount rate at the time of purchase.
[2] All or partial amount pledged as collateral for swap agreements.