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Statements of Financial Condition (Parenthetical) - U.S. Government Agencies Short-term Debt Securities [Member] - USD ($)	Dec. 31, 2025	Dec. 31, 2024
Short-term U.S. government and agency obligations, cost	$ 2,258,570,523	$ 473,690,268
ProShares Short VIX Short-Term Futures ETF [Member]
Short-term U.S. government and agency obligations, cost	59,898,070	24,931,067
ProShares Ultra Bloomberg Crude Oil [Member]
Short-term U.S. government and agency obligations, cost	149,544,793	99,724,267
ProShares Ultra Bloomberg Natural Gas [Member]
Short-term U.S. government and agency obligations, cost	234,217,281	99,724,267
ProShares Ultra Gold [Member]
Short-term U.S. government and agency obligations, cost	548,601,553	74,793,200
ProShares Ultra Silver [Member]
Short-term U.S. government and agency obligations, cost	967,111,002	124,655,333
ProShares Ultra VIX Short-Term Futures ETF [Member]
Short-term U.S. government and agency obligations, cost	99,753,597	24,931,067
ProShares UltraShort Bloomberg Crude Oil [Member]
Short-term U.S. government and agency obligations, cost	44,906,073	0
ProShares UltraShort Bloomberg Natural Gas [Member]
Short-term U.S. government and agency obligations, cost	69,807,867	0
ProShares VIX Short-Term Futures ETF [Member]
Short-term U.S. government and agency obligations, cost	$ 84,730,287	$ 24,931,067

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- Definition

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