v3.26.1
Schedule of Investments - Futures Contracts Sold (Detail) - Futures Contracts [Member] - Contracts to Sell [Member]
Jun. 30, 2026
USD ($)
Contract
ProShares Short VIX Short-Term Futures ETF [Member]  
Schedule of Investments [Line Items]  
Unrealized Appreciation (Depreciation)/Value $ 11,931,229
ProShares Short VIX Short-Term Futures ETF [Member] | VIX Futures - Cboe, expires July 2026 [Member]  
Schedule of Investments [Line Items]  
Number of Contracts | Contract 3,674
Notional Amount at Value $ 65,950,872
Unrealized Appreciation (Depreciation)/Value $ 10,054,253
ProShares Short VIX Short-Term Futures ETF [Member] | VIX Futures Cboe Expires August Two Thousand And Twenty Six [Member]  
Schedule of Investments [Line Items]  
Number of Contracts | Contract 2,368
Notional Amount at Value $ 44,871,232
Unrealized Appreciation (Depreciation)/Value 1,876,976
ProShares UltraShort Bloomberg Crude Oil [Member]  
Schedule of Investments [Line Items]  
Unrealized Appreciation (Depreciation)/Value $ 285,027,123
ProShares UltraShort Bloomberg Crude Oil [Member] | WTI Crude Oil - NYMEX, expires September 2026 [Member]  
Schedule of Investments [Line Items]  
Number of Contracts | Contract 8,124
Notional Amount at Value $ 562,749,480
Unrealized Appreciation (Depreciation)/Value $ 140,697,627
ProShares UltraShort Bloomberg Crude Oil [Member] | WTI Crude Oil - NYMEX, expires December 2026 [Member]  
Schedule of Investments [Line Items]  
Number of Contracts | Contract 8,754
Notional Amount at Value $ 598,335,900
Unrealized Appreciation (Depreciation)/Value $ 84,094,539
ProShares UltraShort Bloomberg Crude Oil [Member] | WTI Crude Oil - NYMEX, expires June 2027 [Member]  
Schedule of Investments [Line Items]  
Number of Contracts | Contract 9,046
Notional Amount at Value $ 603,006,360
Unrealized Appreciation (Depreciation)/Value $ 60,234,957
ProShares UltraShort Bloomberg Natural Gas [Member] | Natural Gas - NYMEX, expires September 2026 [Member]  
Schedule of Investments [Line Items]  
Number of Contracts | Contract 8,765
Notional Amount at Value $ 279,954,100
Unrealized Appreciation (Depreciation)/Value $ 577,621
ProShares UltraShort Gold [Member] | Gold Futures - COMEX, expires August 2026 [Member]  
Schedule of Investments [Line Items]  
Number of Contracts | Contract 372
Notional Amount at Value $ 150,232,200
Unrealized Appreciation (Depreciation)/Value $ 14,999,402
ProShares UltraShort Silver [Member] | Silver Futures - COMEX, expires September 2026 [Member]  
Schedule of Investments [Line Items]  
Number of Contracts | Contract 341
Notional Amount at Value $ 102,167,010
Unrealized Appreciation (Depreciation)/Value $ 10,415,810