v3.22.2
Statements of Financial Condition (Parenthetical) - U.S. Government Agencies Short-term Debt Securities [Member] - USD ($)
Jun. 30, 2022
Dec. 31, 2021
Short-term U.S. government and agency obligations, cost $ 2,087,271,449 $ 2,505,722,885
ProShares Short VIX Short-Term Futures ETF [Member]    
Short-term U.S. government and agency obligations, cost 151,906,089 147,851,244
ProShares Ultra Bloomberg Crude Oil [Member]    
Short-term U.S. government and agency obligations, cost 527,457,948 848,800,309
ProShares Ultra Bloomberg Natural Gas [Member]    
Short-term U.S. government and agency obligations, cost 105,954,114 90,936,719
ProShares Ultra Euro [Member]    
Short-term U.S. government and agency obligations, cost 4,695,823 998,130
ProShares Ultra Gold [Member]    
Short-term U.S. government and agency obligations, cost 208,875,314 207,964,168
ProShares Ultra Silver [Member]    
Short-term U.S. government and agency obligations, cost 290,825,356 451,896,236
ProShares Ultra VIX Short-Term Futures ETF [Member]    
Short-term U.S. government and agency obligations, cost 243,860,580 221,725,609
ProShares Ultra Yen [Member]    
Short-term U.S. government and agency obligations, cost 998,111 0
ProShares UltraShort Bloomberg Crude Oil [Member]    
Short-term U.S. government and agency obligations, cost 232,892,020 55,932,300
ProShares UltraShort Bloomberg Natural Gas [Member]    
Short-term U.S. government and agency obligations, cost 59,954,167 123,855,553
ProShares UltraShort Euro [Member]    
Short-term U.S. government and agency obligations, cost 19,986,920 46,968,288
ProShares UltraShort Gold [Member]    
Short-term U.S. government and agency obligations, cost 13,992,602 25,984,097
ProShares UltraShort Silver [Member]    
Short-term U.S. government and agency obligations, cost 12,996,113 22,995,121
ProShares UltraShort Yen [Member]    
Short-term U.S. government and agency obligations, cost 10,994,894 20,990,068
ProShares VIX Mid-Term Futures ETF [Member]    
Short-term U.S. government and agency obligations, cost 31,975,556 85,937,303
ProShares VIX Short-Term Futures ETF [Member]    
Short-term U.S. government and agency obligations, cost $ 169,905,842 $ 150,887,871