v3.24.0.1

Schedule of Investments - Short-Term U.S. Government and Agency Obligations (Parenthetical) (Detail) - U.S. Government Agencies Short-term Debt Securities [Member] - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Schedule of Investments [Line Items] |  |
Total short-term U.S. government and agency obligations, cost | $ 690,346,244 | $ 1,466,423,925
ProShares Short VIX Short-Term Futures ETF [Member] |  |
Schedule of Investments [Line Items] |  |
Short-term U.S. government and agency obligations percentage of shareholders' equity | 41.00% | (42.00%)
Total short-term U.S. government and agency obligations, cost | $ 109,391,681 | $ 144,283,581
ProShares Short VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 3.807% due 01/03/23 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate |  | 3.807%
Discount rate at the time of purchase |  | true
Investment, maturity date |  | Jan. 03, 2023
ProShares Short VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 4.037% due 02/07/23 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate |  | 4.037%
Discount rate at the time of purchase |  | true
Investment, maturity date |  | Feb. 07, 2023
ProShares Short VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 4.268% due 02/23/23 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate |  | 4.268%
Discount rate at the time of purchase |  | true
Investment, maturity date |  | Feb. 23, 2023
ProShares Short VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 4.258% due 03/09/23 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate |  | 4.258%
Discount rate at the time of purchase |  | true
Investment, maturity date |  | Mar. 09, 2023
ProShares Short VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 4.401% due 04/04/23 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate |  | 4.401%
Discount rate at the time of purchase |  | true
Investment, maturity date |  | Apr. 04, 2023
ProShares Short VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 5.442% due 01/18/24 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate | 5.442% |
Discount rate at the time of purchase | true |
Investment, maturity date | Jan. 18, 2024 |
ProShares Short VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 5.345% due 02/01/24 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate | 5.345% |
Discount rate at the time of purchase | true |
Investment, maturity date | Feb. 01, 2024 |
ProShares Short VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 5.417% due 02/20/24 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate | 5.417% |
Discount rate at the time of purchase | true |
Investment, maturity date | Feb. 20, 2024 |
ProShares Short VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 5.382% due 03/12/24 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate | 5.382% |
Discount rate at the time of purchase | true |
Investment, maturity date | Mar. 12, 2024 |
ProShares Ultra Bloomberg Crude Oil [Member] |  |
Schedule of Investments [Line Items] |  |
Short-term U.S. government and agency obligations percentage of shareholders' equity | 36.00% | 36.00%
Total short-term U.S. government and agency obligations, cost | $ 233,435,026 | $ 313,413,683
ProShares Ultra Bloomberg Crude Oil [Member] | U.S. Treasury Bills 3.807% due 01/03/23 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate |  | 3.807%
Discount rate at the time of purchase |  | true
Investment, maturity date |  | Jan. 03, 2023
ProShares Ultra Bloomberg Crude Oil [Member] | U.S. Treasury Bills 4.037% due 02/07/23 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate |  | 4.037%
Discount rate at the time of purchase |  | true
Investment, maturity date |  | Feb. 07, 2023
ProShares Ultra Bloomberg Crude Oil [Member] | U.S. Treasury Bills 4.268% due 02/23/23 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate |  | 4.268%
Discount rate at the time of purchase |  | true
Investment, maturity date |  | Feb. 23, 2023
ProShares Ultra Bloomberg Crude Oil [Member] | U.S. Treasury Bills 4.258% due 03/09/23 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate |  | 4.258%
Discount rate at the time of purchase |  | true
Investment, maturity date |  | Mar. 09, 2023
ProShares Ultra Bloomberg Crude Oil [Member] | U.S. Treasury Bills 4.401% due 04/04/23 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate |  | 4.401%
Discount rate at the time of purchase |  | true
Investment, maturity date |  | Apr. 04, 2023
ProShares Ultra Bloomberg Crude Oil [Member] | U.S. Treasury Bills 5.442% due 01/18/24 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate | 5.442% |
Discount rate at the time of purchase | true |
Investment, maturity date | Jan. 18, 2024 |
ProShares Ultra Bloomberg Crude Oil [Member] | U.S. Treasury Bills 5.345% due 02/01/24 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate | 5.345% |
Discount rate at the time of purchase | true |
Investment, maturity date | Feb. 01, 2024 |
ProShares Ultra Bloomberg Crude Oil [Member] | U.S. Treasury Bills 5.417% due 02/20/24 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate | 5.417% |
Discount rate at the time of purchase | true |
Investment, maturity date | Feb. 20, 2024 |
ProShares Ultra Bloomberg Crude Oil [Member] | U.S. Treasury Bills 5.382% due 03/12/24 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate | 5.382% |
Discount rate at the time of purchase | true |
Investment, maturity date | Mar. 12, 2024 |
ProShares Ultra Bloomberg Natural Gas [Member] |  |
Schedule of Investments [Line Items] |  |
Short-term U.S. government and agency obligations percentage of shareholders' equity | 9.00% | 45.00%
Total short-term U.S. government and agency obligations, cost | $ 64,445,510 | $ 263,209,299
ProShares Ultra Bloomberg Natural Gas [Member] | U.S. Treasury Bills 3.807% due 01/03/23 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate |  | 3.807%
Discount rate at the time of purchase |  | true
Investment, maturity date |  | Jan. 03, 2023
ProShares Ultra Bloomberg Natural Gas [Member] | U.S. Treasury Bills 4.037% due 02/07/23 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate |  | 4.037%
Discount rate at the time of purchase |  | true
Investment, maturity date |  | Feb. 07, 2023
ProShares Ultra Bloomberg Natural Gas [Member] | U.S. Treasury Bills 4.268% due 02/23/23 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate |  | 4.268%
Discount rate at the time of purchase |  | true
Investment, maturity date |  | Feb. 23, 2023
ProShares Ultra Bloomberg Natural Gas [Member] | U.S. Treasury Bills 4.258% due 03/09/23 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate |  | 4.258%
Discount rate at the time of purchase |  | true
Investment, maturity date |  | Mar. 09, 2023
ProShares Ultra Bloomberg Natural Gas [Member] | U.S. Treasury Bills 4.401% due 04/04/23 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate |  | 4.401%
Discount rate at the time of purchase |  | true
Investment, maturity date |  | Apr. 04, 2023
ProShares Ultra Bloomberg Natural Gas [Member] | U.S. Treasury Bills 5.417% due 02/20/24 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate | 5.417% |
Discount rate at the time of purchase | true |
Investment, maturity date | Feb. 20, 2024 |
ProShares Ultra Bloomberg Natural Gas [Member] | U.S. Treasury Bills 5.382% due 03/12/24 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate | 5.382% |
Discount rate at the time of purchase | true |
Investment, maturity date | Mar. 12, 2024 |
ProShares Ultra Gold [Member] |  |
Schedule of Investments [Line Items] |  |
Short-term U.S. government and agency obligations percentage of shareholders' equity | 31.00% | 74.00%
Total short-term U.S. government and agency obligations, cost | $ 59,496,177 | $ 129,100,287
ProShares Ultra Gold [Member] | U.S. Treasury Bills 4.037% due 02/07/23 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate |  | 4.037%
Discount rate at the time of purchase |  | true
Investment, maturity date |  | Feb. 07, 2023
ProShares Ultra Gold [Member] | U.S. Treasury Bills 4.268% due 02/23/23 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate |  | 4.268%
Discount rate at the time of purchase |  | true
Investment, maturity date |  | Feb. 23, 2023
ProShares Ultra Gold [Member] | U.S. Treasury Bills 4.258% due 03/09/23 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate |  | 4.258%
Discount rate at the time of purchase |  | true
Investment, maturity date |  | Mar. 09, 2023
ProShares Ultra Gold [Member] | U.S. Treasury Bills 4.401% due 04/04/23 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate |  | 4.401%
Discount rate at the time of purchase |  | true
Investment, maturity date |  | Apr. 04, 2023
ProShares Ultra Gold [Member] | U.S. Treasury Bills 5.345% due 02/01/24 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate | 5.345% |
Discount rate at the time of purchase | true |
Investment, maturity date | Feb. 01, 2024 |
ProShares Ultra Gold [Member] | U.S. Treasury Bills 5.417% due 02/20/24 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate | 5.417% |
Discount rate at the time of purchase | true |
Investment, maturity date | Feb. 20, 2024 |
ProShares Ultra Gold [Member] | U.S. Treasury Bills 5.382% due 03/12/24 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate | 5.382% |
Discount rate at the time of purchase | true |
Investment, maturity date | Mar. 12, 2024 |
ProShares Ultra Silver [Member] |  |
Schedule of Investments [Line Items] |  |
Short-term U.S. government and agency obligations percentage of shareholders' equity | 29.00% | 55.00%
Total short-term U.S. government and agency obligations, cost | $ 114,255,151 | $ 228,617,421
ProShares Ultra Silver [Member] | U.S. Treasury Bills 3.807% due 01/03/23 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate |  | 3.807%
Discount rate at the time of purchase |  | true
Investment, maturity date |  | Jan. 03, 2023
ProShares Ultra Silver [Member] | U.S. Treasury Bills 4.037% due 02/07/23 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate |  | 4.037%
Discount rate at the time of purchase |  | true
Investment, maturity date |  | Feb. 07, 2023
ProShares Ultra Silver [Member] | U.S. Treasury Bills 4.268% due 02/23/23 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate |  | 4.268%
Discount rate at the time of purchase |  | true
Investment, maturity date |  | Feb. 23, 2023
ProShares Ultra Silver [Member] | U.S. Treasury Bills 4.258% due 03/09/23 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate |  | 4.258%
Discount rate at the time of purchase |  | true
Investment, maturity date |  | Mar. 09, 2023
ProShares Ultra Silver [Member] | U.S. Treasury Bills 4.401% due 04/04/23 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate |  | 4.401%
Discount rate at the time of purchase |  | true
Investment, maturity date |  | Apr. 04, 2023
ProShares Ultra Silver [Member] | U.S. Treasury Bills 5.442% due 01/18/24 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate | 5.442% |
Discount rate at the time of purchase | true |
Investment, maturity date | Jan. 18, 2024 |
ProShares Ultra Silver [Member] | U.S. Treasury Bills 5.345% due 02/01/24 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate | 5.345% |
Discount rate at the time of purchase | true |
Investment, maturity date | Feb. 01, 2024 |
ProShares Ultra Silver [Member] | U.S. Treasury Bills 5.417% due 02/20/24 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate | 5.417% |
Discount rate at the time of purchase | true |
Investment, maturity date | Feb. 20, 2024 |
ProShares Ultra Silver [Member] | U.S. Treasury Bills 5.382% due 03/12/24 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate | 5.382% |
Discount rate at the time of purchase | true |
Investment, maturity date | Mar. 12, 2024 |
ProShares Ultra VIX Short-Term Futures ETF [Member] |  |
Schedule of Investments [Line Items] |  |
Short-term U.S. government and agency obligations percentage of shareholders' equity |  | 5.00%
Total short-term U.S. government and agency obligations, cost | $ 0 | $ 34,728,989
ProShares Ultra VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 4.258% due 03/09/23 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate |  | 4.258%
Discount rate at the time of purchase |  | true
Investment, maturity date |  | Mar. 09, 2023
ProShares UltraShort Bloomberg Crude Oil [Member] |  |
Schedule of Investments [Line Items] |  |
Short-term U.S. government and agency obligations percentage of shareholders' equity | 26.00% | 40.00%
Total short-term U.S. government and agency obligations, cost | $ 49,673,923 | $ 89,407,308
ProShares UltraShort Bloomberg Crude Oil [Member] | U.S. Treasury Bills 4.037% due 02/07/23 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate |  | 4.037%
Discount rate at the time of purchase |  | true
Investment, maturity date |  | Feb. 07, 2023
ProShares UltraShort Bloomberg Crude Oil [Member] | U.S. Treasury Bills 4.268% due 02/23/23 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate |  | 4.268%
Discount rate at the time of purchase |  | true
Investment, maturity date |  | Feb. 23, 2023
ProShares UltraShort Bloomberg Crude Oil [Member] | U.S. Treasury Bills 4.401% due 04/04/23 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate |  | 4.401%
Discount rate at the time of purchase |  | true
Investment, maturity date |  | Apr. 04, 2023
ProShares UltraShort Bloomberg Crude Oil [Member] | U.S. Treasury Bills 5.442% due 01/18/24 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate | 5.442% |
Discount rate at the time of purchase | true |
Investment, maturity date | Jan. 18, 2024 |
ProShares UltraShort Bloomberg Crude Oil [Member] | U.S. Treasury Bills 5.417% due 02/20/24 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate | 5.417% |
Discount rate at the time of purchase | true |
Investment, maturity date | Feb. 20, 2024 |
ProShares UltraShort Bloomberg Crude Oil [Member] | U.S. Treasury Bills 5.382% due 03/12/24 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate | 5.382% |
Investment, maturity date | Mar. 12, 2024 |
ProShares UltraShort Bloomberg Natural Gas [Member] |  |
Schedule of Investments [Line Items] |  |
Short-term U.S. government and agency obligations percentage of shareholders' equity |  | 46.00%
Total short-term U.S. government and agency obligations, cost | $ 0 | $ 61,469,726
ProShares UltraShort Bloomberg Natural Gas [Member] | U.S. Treasury Bills 4.268% due 02/23/23 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate |  | 4.268%
Discount rate at the time of purchase |  | true
Investment, maturity date |  | Feb. 23, 2023
ProShares UltraShort Bloomberg Natural Gas [Member] | U.S. Treasury Bills 4.258% due 03/09/23 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate |  | 4.258%
Discount rate at the time of purchase |  | true
Investment, maturity date |  | Mar. 09, 2023
ProShares UltraShort Bloomberg Natural Gas [Member] | U.S. Treasury Bills 4.401% due 04/04/23 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate |  | 4.401%
Discount rate at the time of purchase |  | true
Investment, maturity date |  | Apr. 04, 2023
ProShares UltraShort Euro [Member] |  |
Schedule of Investments [Line Items] |  |
Short-term U.S. government and agency obligations percentage of shareholders' equity |  | 53.00%
Total short-term U.S. government and agency obligations, cost | 0 | $ 39,991,822
ProShares UltraShort Euro [Member] | U.S. Treasury Bills 3.807% due 01/03/23 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate |  | 3.807%
Discount rate at the time of purchase |  | true
Investment, maturity date |  | Jan. 03, 2023
ProShares UltraShort Yen [Member] |  |
Schedule of Investments [Line Items] |  |
Short-term U.S. government and agency obligations percentage of shareholders' equity |  | 107.00%
Total short-term U.S. government and agency obligations, cost | 0 | $ 22,995,298
ProShares UltraShort Yen [Member] | U.S. Treasury Bills 3.807% due 01/03/23 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate |  | 3.807%
Discount rate at the time of purchase |  | true
Investment, maturity date |  | Jan. 03, 2023
ProShares VIX Mid-Term Futures ETF [Member] |  |
Schedule of Investments [Line Items] |  |
Short-term U.S. government and agency obligations percentage of shareholders' equity |  | 59.00%
Total short-term U.S. government and agency obligations, cost | $ 0 | $ 49,876,697
ProShares VIX Mid-Term Futures ETF [Member] | U.S. Treasury Bills 3.807% due 01/03/23 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate |  | 3.807%
Discount rate at the time of purchase |  | true
Investment, maturity date |  | Jan. 03, 2023
ProShares VIX Mid-Term Futures ETF [Member] | U.S. Treasury Bills 4.258% due 03/09/23 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate |  | 4.258%
Discount rate at the time of purchase |  | true
Investment, maturity date |  | Mar. 09, 2023
ProShares VIX Short-Term Futures ETF [Member] |  |
Schedule of Investments [Line Items] |  |
Short-term U.S. government and agency obligations percentage of shareholders' equity | 38.00% | 34.00%
Total short-term U.S. government and agency obligations, cost | $ 59,648,776 | $ 89,329,814
ProShares VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 4.037% due 02/07/23 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate |  | 4.037%
Discount rate at the time of purchase |  | true
Investment, maturity date |  | Feb. 07, 2023
ProShares VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 4.258% due 03/09/23 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate |  | 4.258%
Discount rate at the time of purchase |  | true
Investment, maturity date |  | Mar. 09, 2023
ProShares VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 4.401% due 04/04/23 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate |  | 4.401%
Discount rate at the time of purchase |  | true
Investment, maturity date |  | Apr. 04, 2023
ProShares VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 5.442% due 01/18/24 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate | 5.442% |
Discount rate at the time of purchase | true |
Investment, maturity date | Jan. 18, 2024 |
ProShares VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 5.417% due 02/20/24 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate | 5.417% |
Discount rate at the time of purchase | true |
Investment, maturity date | Feb. 20, 2024 |
ProShares VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 5.382% due 03/12/24 [Member] |  |
Schedule of Investments [Line Items] |  |
Interest rate | 5.382% |
Discount rate at the time of purchase | true |
Investment, maturity date | Mar. 12, 2024 |

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