Schedule of Investments - Affiliated Investments (Parenthetical) (Detail)	Jun. 30, 2026 USD ($)
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES SHORT VIX SHORT TERM FUTURES ETF \| 34% of shareholders equity
Schedule of Investments [Line Items]
Short-term U.S. government and agency obligations percentage of shareholders' equity	34.00%
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES SHORT VIX SHORT TERM FUTURES ETF \| ProShares Genius Money Market ETF 3.54% cost $75,046,500
Schedule of Investments [Line Items]
Money market investment interest rate	3.54%
Affiliated investments, cost	$ 75,046,500
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES SHORT VIX SHORT TERM FUTURES ETF \| Total Investments in Securities cost $119,694,205
Schedule of Investments [Line Items]
Affiliated investments, cost	$ 119,694,205
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES ULTRA BLOOMBERG CRUDE OIL \| 22% of shareholders equity
Schedule of Investments [Line Items]
Short-term U.S. government and agency obligations percentage of shareholders' equity	22.00%
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES ULTRA BLOOMBERG CRUDE OIL \| ProShares Genius Money Market ETF 3.54% cost $70,028,000
Schedule of Investments [Line Items]
Money market investment interest rate	3.54%
Affiliated investments, cost	$ 70,028,000
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES ULTRA BLOOMBERG CRUDE OIL \| Total Investments in Securities cost $318,672,399
Schedule of Investments [Line Items]
Affiliated investments, cost	$ 318,672,399
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES ULTRA BLOOMBERG NATURAL GAS \| 33% of shareholders equity
Schedule of Investments [Line Items]
Short-term U.S. government and agency obligations percentage of shareholders' equity	33.00%
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES ULTRA BLOOMBERG NATURAL GAS \| ProShares Genius Money Market ETF 3.54% cost $100,049,500
Schedule of Investments [Line Items]
Money market investment interest rate	3.54%
Affiliated investments, cost	$ 100,049,500
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES ULTRA BLOOMBERG NATURAL GAS \| Total Investments in Securities cost $199,694,450
Schedule of Investments [Line Items]
Affiliated investments, cost	$ 199,694,450
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES ULTRA GOLD \| 28% of shareholders equity
Schedule of Investments [Line Items]
Short-term U.S. government and agency obligations percentage of shareholders' equity	28.00%
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES ULTRA GOLD \| ProShares Genius Money Market ETF 3.54% cost $180,072,000
Schedule of Investments [Line Items]
Money market investment interest rate	3.54%
Affiliated investments, cost	$ 180,072,000
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES ULTRA GOLD \| Total Investments in Securities cost $578,579,049
Schedule of Investments [Line Items]
Affiliated investments, cost	$ 578,579,049
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES ULTRA SILVER \| 22% of shareholders equity
Schedule of Investments [Line Items]
Short-term U.S. government and agency obligations percentage of shareholders' equity	22.00%
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES ULTRA SILVER \| ProShares Genius Money Market ETF 3.54% cost $280,112,000
Schedule of Investments [Line Items]
Money market investment interest rate	3.54%
Affiliated investments, cost	$ 280,112,000
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES ULTRA SILVER \| Total Investments in Securities cost $1,219,845,563
Schedule of Investments [Line Items]
Affiliated investments, cost	$ 1,219,845,563
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES ULTRA VIX SHORT TERM FUTURES ETF \| 36% of shareholders equity
Schedule of Investments [Line Items]
Short-term U.S. government and agency obligations percentage of shareholders' equity	20.00%
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES ULTRA VIX SHORT TERM FUTURES ETF \| ProShares Genius Money Market ETF 3.52% cost $105,058,700
Schedule of Investments [Line Items]
Money market investment interest rate	3.54%
Affiliated investments, cost	$ 50,020,000
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES ULTRA YEN \| 35% of shareholders equity
Schedule of Investments [Line Items]
Short-term U.S. government and agency obligations percentage of shareholders' equity	35.00%
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES ULTRA YEN \| ProShares Genius Money Market ETF 3.54% cost $11,004,400
Schedule of Investments [Line Items]
Money market investment interest rate	3.54%
Affiliated investments, cost	$ 11,004,400
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES ULTRA YEN \| Total Investments in Securities cost $17,984,373
Schedule of Investments [Line Items]
Affiliated investments, cost	$ 17,984,373
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES ULTRASHORT BLOOMBERG CRUDE OIL \| 34% of shareholders equity
Schedule of Investments [Line Items]
Short-term U.S. government and agency obligations percentage of shareholders' equity	34.00%
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES ULTRASHORT BLOOMBERG CRUDE OIL \| ProShares Genius Money Market ETF 3.54% cost $300,255,420
Schedule of Investments [Line Items]
Money market investment interest rate	3.54%
Affiliated investments, cost	$ 300,255,420
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES ULTRASHORT BLOOMBERG CRUDE OIL \| Total Investments in Securities cost $579,203,503
Schedule of Investments [Line Items]
Affiliated investments, cost	$ 579,203,503
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES ULTRASHORT BLOOMBERG NATURAL GAS \| 32% of shareholders equity
Schedule of Investments [Line Items]
Short-term U.S. government and agency obligations percentage of shareholders' equity	32.00%
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES ULTRASHORT BLOOMBERG NATURAL GAS \| ProShares Genius Money Market ETF 3.54% cost $45,018,000
Schedule of Investments [Line Items]
Money market investment interest rate	3.54%
Affiliated investments, cost	$ 45,018,000
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES ULTRASHORT BLOOMBERG NATURAL GAS \| Total Investments in Securities cost $45,018,000
Schedule of Investments [Line Items]
Affiliated investments, cost	$ 45,018,000
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES ULTRASHORT EURO \| 28% of shareholders equity
Schedule of Investments [Line Items]
Short-term U.S. government and agency obligations percentage of shareholders' equity	28.00%
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES ULTRASHORT EURO \| ProShares Genius Money Market ETF 3.54% cost $10,004,000
Schedule of Investments [Line Items]
Money market investment interest rate	3.54%
Affiliated investments, cost	$ 10,004,000
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES ULTRASHORT EURO \| Total Investments in Securities cost $19,975,389
Schedule of Investments [Line Items]
Affiliated investments, cost	$ 19,975,389
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES ULTRASHORT GOLD \| 27% of shareholders equity
Schedule of Investments [Line Items]
Short-term U.S. government and agency obligations percentage of shareholders' equity	27.00%
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES ULTRASHORT GOLD \| ProShares Genius Money Market ETF 3.54% cost $30,014,500
Schedule of Investments [Line Items]
Money market investment interest rate	3.54%
Affiliated investments, cost	$ 30,014,500
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES ULTRASHORT GOLD \| Total Investments in Securities cost $69,871,690
Schedule of Investments [Line Items]
Affiliated investments, cost	$ 69,871,690
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES ULTRASHORT SILVER \| 22% of shareholders equity
Schedule of Investments [Line Items]
Short-term U.S. government and agency obligations percentage of shareholders' equity	22.00%
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES ULTRASHORT SILVER \| ProShares Genius Money Market ETF 3.54% cost $20,015,950
Schedule of Investments [Line Items]
Money market investment interest rate	3.54%
Affiliated investments, cost	$ 20,015,950
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES ULTRASHORT SILVER \| Total Investments in Securities cost $64,642,809
Schedule of Investments [Line Items]
Affiliated investments, cost	$ 64,642,809
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES ULTRASHORT YEN \| 23% of shareholders equity
Schedule of Investments [Line Items]
Short-term U.S. government and agency obligations percentage of shareholders' equity	23.00%
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES ULTRASHORT YEN \| ProShares Genius Money Market ETF 3.54% cost $7,002,800
Schedule of Investments [Line Items]
Money market investment interest rate	3.54%
Affiliated investments, cost	$ 7,002,800
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES ULTRASHORT YEN \| Total Investments in Securities cost $16,974,189
Schedule of Investments [Line Items]
Affiliated investments, cost	$ 16,974,189
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES VIX MID TERM FUTURES ETF \| 37% of shareholders equity
Schedule of Investments [Line Items]
Short-term U.S. government and agency obligations percentage of shareholders' equity	37.00%
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES VIX MID TERM FUTURES ETF \| ProShares Genius Money Market ETF 3.52% cost $15,006,000
Schedule of Investments [Line Items]
Money market investment interest rate	3.52%
Affiliated investments, cost	$ 15,006,000
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES VIX MID TERM FUTURES ETF \| Total Investments in Securities cost $24,970,100
Schedule of Investments [Line Items]
Affiliated investments, cost	$ 24,970,100
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES VIX SHORT TERM FUTURES ETF \| 33% of shareholders equity
Schedule of Investments [Line Items]
Short-term U.S. government and agency obligations percentage of shareholders' equity	33.00%
Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund \| PROSHARES VIX SHORT TERM FUTURES ETF \| ProShares Genius Money Market ETF 3.54% cost $65,037,250
Schedule of Investments [Line Items]
Money market investment interest rate	3.54%
Affiliated investments, cost	$ 65,037,250
Investment, Identifier [Axis]: U.S. Government Agencies Short-term Debt Securities \| ProShares Short VIX Short-Term Futures ETF
Schedule of Investments [Line Items]
Short-term U.S. government and agency obligations percentage of shareholders' equity	20.00%
Affiliated investments, cost	$ 44,647,705
Investment, Identifier [Axis]: U.S. Government Agencies Short-term Debt Securities \| ProShares Ultra Bloomberg Crude Oil
Schedule of Investments [Line Items]
Short-term U.S. government and agency obligations percentage of shareholders' equity	80.00%
Affiliated investments, cost	$ 248,644,399
Investment, Identifier [Axis]: U.S. Government Agencies Short-term Debt Securities \| ProShares Ultra Bloomberg Natural Gas
Schedule of Investments [Line Items]
Short-term U.S. government and agency obligations percentage of shareholders' equity	32.00%
Affiliated investments, cost	$ 99,644,950
Investment, Identifier [Axis]: U.S. Government Agencies Short-term Debt Securities \| ProShares Ultra Gold
Schedule of Investments [Line Items]
Short-term U.S. government and agency obligations percentage of shareholders' equity	62.00%
Affiliated investments, cost	$ 398,507,049
Investment, Identifier [Axis]: U.S. Government Agencies Short-term Debt Securities \| ProShares Ultra Silver
Schedule of Investments [Line Items]
Short-term U.S. government and agency obligations percentage of shareholders' equity	74.00%
Affiliated investments, cost	$ 939,733,563
Investment, Identifier [Axis]: U.S. Government Agencies Short-term Debt Securities \| ProShares Ultra Yen
Schedule of Investments [Line Items]
Short-term U.S. government and agency obligations percentage of shareholders' equity	22.00%
Affiliated investments, cost	$ 6,979,973
Investment, Identifier [Axis]: U.S. Government Agencies Short-term Debt Securities \| ProShares UltraShort Bloomberg Crude Oil
Schedule of Investments [Line Items]
Short-term U.S. government and agency obligations percentage of shareholders' equity	32.00%
Affiliated investments, cost	$ 278,948,083
Investment, Identifier [Axis]: U.S. Government Agencies Short-term Debt Securities \| ProShares UltraShort Euro
Schedule of Investments [Line Items]
Short-term U.S. government and agency obligations percentage of shareholders' equity	28.00%
Affiliated investments, cost	$ 9,971,389
Investment, Identifier [Axis]: U.S. Government Agencies Short-term Debt Securities \| ProShares UltraShort Gold
Schedule of Investments [Line Items]
Short-term U.S. government and agency obligations percentage of shareholders' equity	36.00%
Affiliated investments, cost	$ 39,857,190
Investment, Identifier [Axis]: U.S. Government Agencies Short-term Debt Securities \| ProShares UltraShort Silver
Schedule of Investments [Line Items]
Short-term U.S. government and agency obligations percentage of shareholders' equity	49.00%
Affiliated investments, cost	$ 44,626,859
Investment, Identifier [Axis]: U.S. Government Agencies Short-term Debt Securities \| ProShares UltraShort Yen
Schedule of Investments [Line Items]
Short-term U.S. government and agency obligations percentage of shareholders' equity	32.00%
Affiliated investments, cost	$ 9,971,389
Investment, Identifier [Axis]: U.S. Government Agencies Short-term Debt Securities \| ProShares VIX Mid-Term Futures ETF
Schedule of Investments [Line Items]
Short-term U.S. government and agency obligations percentage of shareholders' equity	25.00%
Affiliated investments, cost	$ 9,964,100
Investment, Identifier [Axis]: U.S. Government Agencies Short-term Debt Securities \| Proshares Ultra Euro
Schedule of Investments [Line Items]
Short-term U.S. government and agency obligations percentage of shareholders' equity	40.00%
Affiliated investments, cost	$ 1,994,278

Investment, Identifier [Axis]: Affiliated Investments Exchange Traded Fund | PROSHARES SHORT VIX SHORT TERM FUTURES ETF | 34% of shareholders equity