Statements of Financial Condition (Parenthetical) - U.S. Government Agencies Short-term Debt Securities [Member] - USD ($)	Jun. 30, 2025	Dec. 31, 2024
Short-term U.S. government and agency obligations, cost	$ 319,748,936	$ 473,690,268
ProShares Short VIX Short-Term Futures ETF [Member]
Short-term U.S. government and agency obligations, cost	0	24,931,067
ProShares Ultra Bloomberg Crude Oil [Member]
Short-term U.S. government and agency obligations, cost	49,958,924	99,724,267
ProShares Ultra Bloomberg Natural Gas [Member]
Short-term U.S. government and agency obligations, cost	19,983,569	99,724,267
ProShares Ultra Gold [Member]
Short-term U.S. government and agency obligations, cost	74,938,385	74,793,200
ProShares Ultra Silver [Member]
Short-term U.S. government and agency obligations, cost	119,913,242	124,655,333
ProShares Ultra VIX Short-Term Futures ETF [Member]
Short-term U.S. government and agency obligations, cost	14,987,677	24,931,067
ProShares UltraShort Bloomberg Natural Gas [Member]
Short-term U.S. government and agency obligations, cost	39,967,139	0
ProShares VIX Short-Term Futures ETF [Member]
Short-term U.S. government and agency obligations, cost	$ 0	$ 24,931,067