v3.24.1.u1
Schedule of Investments - Foreign Currency Forward Contracts (Detail) - 3 months ended Mar. 31, 2024 - Foreign Currency Forward Contracts [Member]
USD ($)
EUR (€)
JPY (¥)
ProShares Ultra Euro [Member] | Euro Contract [Member] | Contracts to Purchase [Member]      
Schedule of Investments [Line Items]      
Unrealized Appreciation (Depreciation)/Value [1] $ (203,530)    
ProShares Ultra Euro [Member] | Euro Contract [Member] | Contracts to Purchase [Member] | Goldman Sachs International [Member]      
Schedule of Investments [Line Items]      
Settlement Date [1] Apr. 05, 2024    
Contract to Purchase [1] $ 6,127,948 € 5,678,921  
Unrealized Appreciation (Depreciation)/Value [1] $ (90,225)    
ProShares Ultra Euro [Member] | Euro Contract [Member] | Contracts to Purchase [Member] | UBS AG [Member]      
Schedule of Investments [Line Items]      
Settlement Date [1] Apr. 05, 2024    
Contract to Purchase [1] $ 7,719,122 7,153,502  
Unrealized Appreciation (Depreciation)/Value [1] (113,305)    
ProShares Ultra Euro [Member] | Euro Contract [Member] | Contracts to Sell [Member]      
Schedule of Investments [Line Items]      
Unrealized Appreciation (Depreciation)/Value [1] $ 965    
ProShares Ultra Euro [Member] | Euro Contract [Member] | Contracts to Sell [Member] | UBS AG [Member]      
Schedule of Investments [Line Items]      
Settlement Date [1] Apr. 05, 2024    
Contract to Sell [1] $ (238,475) (221,000)  
Unrealized Appreciation (Depreciation)/Value [1] 965    
ProShares Ultra Yen [Member] | Yen Contract [Member] | Contracts to Purchase [Member]      
Schedule of Investments [Line Items]      
Unrealized Appreciation (Depreciation)/Value [1] $ (2,065,194)    
ProShares Ultra Yen [Member] | Yen Contract [Member] | Contracts to Purchase [Member] | Goldman Sachs International [Member]      
Schedule of Investments [Line Items]      
Settlement Date [1] Apr. 05, 2024    
Contract to Purchase [1] $ 41,644,228   ¥ 6,299,288,056
Unrealized Appreciation (Depreciation)/Value [1] $ (954,143)    
ProShares Ultra Yen [Member] | Yen Contract [Member] | Contracts to Purchase [Member] | UBS AG [Member]      
Schedule of Investments [Line Items]      
Settlement Date [1] Apr. 05, 2024    
Contract to Purchase [1] $ 42,608,876   6,445,204,856
Unrealized Appreciation (Depreciation)/Value [1] (1,111,051)    
ProShares Ultra Yen [Member] | Yen Contract [Member] | Contracts to Sell [Member]      
Schedule of Investments [Line Items]      
Unrealized Appreciation (Depreciation)/Value [1] $ 5,548    
ProShares Ultra Yen [Member] | Yen Contract [Member] | Contracts to Sell [Member] | Goldman Sachs International [Member]      
Schedule of Investments [Line Items]      
Settlement Date [1] Apr. 05, 2024    
Contract to Sell [1] $ (241,399)   (36,515,000)
Unrealized Appreciation (Depreciation)/Value [1] 5,548    
ProShares UltraShort Euro [Member] | Euro Contract [Member] | Contracts to Purchase [Member]      
Schedule of Investments [Line Items]      
Unrealized Appreciation (Depreciation)/Value [1] $ (45,109)    
ProShares UltraShort Euro [Member] | Euro Contract [Member] | Contracts to Purchase [Member] | Goldman Sachs International [Member]      
Schedule of Investments [Line Items]      
Settlement Date [1] Apr. 05, 2024    
Contract to Purchase [1] $ 2,254,174 2,089,000  
Unrealized Appreciation (Depreciation)/Value [1] $ (24,577)    
ProShares UltraShort Euro [Member] | Euro Contract [Member] | Contracts to Purchase [Member] | UBS AG [Member]      
Schedule of Investments [Line Items]      
Settlement Date [1] Apr. 05, 2024    
Contract to Purchase [1] $ 2,589,766 2,400,000  
Unrealized Appreciation (Depreciation)/Value [1] (20,532)    
ProShares UltraShort Euro [Member] | Euro Contract [Member] | Contracts to Sell [Member]      
Schedule of Investments [Line Items]      
Unrealized Appreciation (Depreciation)/Value [1] $ 1,164,063    
ProShares UltraShort Euro [Member] | Euro Contract [Member] | Contracts to Sell [Member] | Goldman Sachs International [Member]      
Schedule of Investments [Line Items]      
Settlement Date [1] Apr. 05, 2024    
Contract to Sell [1] $ (42,036,495) (38,956,263)  
Unrealized Appreciation (Depreciation)/Value [1] $ 611,935    
ProShares UltraShort Euro [Member] | Euro Contract [Member] | Contracts to Sell [Member] | UBS AG [Member]      
Schedule of Investments [Line Items]      
Settlement Date [1] Apr. 05, 2024    
Contract to Sell [1] $ (40,220,352) € (37,273,199)  
Unrealized Appreciation (Depreciation)/Value [1] 552,128    
ProShares UltraShort Yen [Member] | Yen Contract [Member] | Contracts to Purchase [Member]      
Schedule of Investments [Line Items]      
Unrealized Appreciation (Depreciation)/Value [1] $ (217)    
ProShares UltraShort Yen [Member] | Yen Contract [Member] | Contracts to Purchase [Member] | UBS AG [Member]      
Schedule of Investments [Line Items]      
Settlement Date [1] Apr. 05, 2024    
Contract to Purchase [1] $ 306,840   46,414,000
Unrealized Appreciation (Depreciation)/Value [1] (217)    
ProShares UltraShort Yen [Member] | Yen Contract [Member] | Contracts to Sell [Member]      
Schedule of Investments [Line Items]      
Unrealized Appreciation (Depreciation)/Value [1] $ 1,626,444    
ProShares UltraShort Yen [Member] | Yen Contract [Member] | Contracts to Sell [Member] | Goldman Sachs International [Member]      
Schedule of Investments [Line Items]      
Settlement Date [1] Apr. 05, 2024    
Contract to Sell [1] $ (28,241,787)   (4,271,976,165)
Unrealized Appreciation (Depreciation)/Value [1] $ 715,090    
ProShares UltraShort Yen [Member] | Yen Contract [Member] | Contracts to Sell [Member] | UBS AG [Member]      
Schedule of Investments [Line Items]      
Settlement Date [1] Apr. 05, 2024    
Contract to Sell [1] $ (37,318,203)   ¥ (5,644,914,574)
Unrealized Appreciation (Depreciation)/Value [1] $ 911,354    
[1] The positions and counterparties herein are as of March 31, 2024. The Fund continually evaluates different counterparties for their transactions and counterparties are subject to change. New counterparties can be added at any time.