Statements of Financial Condition (Parenthetical) - U.S. Government Agencies Short-term Debt Securities [Member] - USD ($)	Mar. 31, 2024	Dec. 31, 2023
Short-term U.S. government and agency obligations, cost	$ 1,101,228,826	$ 690,346,244
ProShares Short VIX Short-Term Futures ETF [Member]
Short-term U.S. government and agency obligations, cost	148,766,040	109,391,681
ProShares Ultra Bloomberg Crude Oil [Member]
Short-term U.S. government and agency obligations, cost	301,987,549	233,435,026
ProShares Ultra Bloomberg Natural Gas [Member]
Short-term U.S. government and agency obligations, cost	0	64,445,510
ProShares Ultra Gold [Member]
Short-term U.S. government and agency obligations, cost	138,592,669	59,496,177
ProShares Ultra Silver [Member]
Short-term U.S. government and agency obligations, cost	205,091,268	114,255,151
ProShares Ultra VIX Short-Term Futures ETF [Member]
Short-term U.S. government and agency obligations, cost	59,312,431	0
ProShares UltraShort Bloomberg Crude Oil [Member]
Short-term U.S. government and agency obligations, cost	123,822,272	49,673,923
ProShares UltraShort Bloomberg Natural Gas [Member]
Short-term U.S. government and agency obligations, cost	54,451,445	0
ProShares VIX Short-Term Futures ETF [Member]
Short-term U.S. government and agency obligations, cost	$ 69,205,152	$ 59,648,776