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Statements of Changes in Shareholders' Equity (Parenthetical) - shares	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Addition, shares	370,805,000	188,532,500	176,346,650
Redemption, shares	333,331,495	186,042,654	186,820,305
Net addition (redemption), shares	37,473,505	2,489,846	(10,473,655)
ProShares Short VIX Short-Term Futures ETF [Member]
Addition, shares	19,000,000	19,900,000	8,200,000
Redemption, shares	19,950,000	19,750,000	14,600,000
Net addition (redemption), shares	(950,000)	150,000	(6,400,000)
ProShares Ultra Bloomberg Crude Oil [Member]
Addition, shares	32,000,000	32,800,000	47,050,000
Redemption, shares	31,200,000	38,600,000	50,600,000
Net addition (redemption), shares	800,000	(5,800,000)	(3,550,000)
ProShares Ultra Bloomberg Natural Gas [Member]
Addition, shares	78,950,000	35,420,000	13,723,000
Redemption, shares	62,450,000	33,310,662	8,932,166
Net addition (redemption), shares	16,500,000	2,109,338	4,790,834
ProShares Ultra Euro [Member]
Addition, shares	200,000	250,000	300,000
Redemption, shares	300,000	300,000	650,000
Net addition (redemption), shares	(100,000)	(50,000)	(350,000)
ProShares Ultra Gold [Member]
Addition, shares	24,050,000	9,000,000	4,000,000
Redemption, shares	18,300,000	8,600,000	4,600,000
Net addition (redemption), shares	5,750,000	400,000	(600,000)
ProShares Ultra Silver [Member]
Addition, shares	20,750,000	15,750,000	7,100,000
Redemption, shares	23,150,000	13,300,000	5,850,000
Net addition (redemption), shares	(2,400,000)	2,450,000	1,250,000
ProShares Ultra VIX Short-Term Futures ETF [Member]
Addition, shares	32,880,000	10,800,000	2,512,400
Redemption, shares	24,451,382	9,714,250	1,231,735
Net addition (redemption), shares	8,428,618	1,085,750	1,280,665
ProShares Ultra Yen [Member]
Addition, shares	1,500,000	2,050,000	1,000,000
Redemption, shares	1,150,000	950,000	300,000
Net addition (redemption), shares	350,000	1,100,000	700,000
ProShares UltraShort Bloomberg Crude Oil [Member]
Addition, shares	29,100,000	19,500,000	32,700,000
Redemption, shares	31,750,000	21,400,000	32,900,000
Net addition (redemption), shares	(2,650,000)	(1,900,000)	(200,000)
ProShares UltraShort Bloomberg Natural Gas [Member]
Addition, shares	89,850,000	25,950,000	52,600,000
Redemption, shares	91,800,000	22,900,000	59,600,000
Net addition (redemption), shares	(1,950,000)	3,050,000	(7,000,000)
ProShares UltraShort Euro [Member]
Addition, shares	600,000	250,000	300,000
Redemption, shares	550,000	400,000	1,500,000
Net addition (redemption), shares	50,000	(150,000)	(1,200,000)
ProShares UltraShort Gold [Member]
Addition, shares	14,025,000	512,500	200,000
Redemption, shares	11,125,113	387,500	212,500
Net addition (redemption), shares	2,899,887	125,000	(12,500)
ProShares UltraShort Silver [Member]
Addition, shares	6,375,000	362,500	296,250
Redemption, shares	2,730,000	396,257	247,500
Net addition (redemption), shares	3,645,000	(33,757)	48,750
ProShares UltraShort Yen [Member]
Addition, shares	1,050,000	900,000	1,100,000
Redemption, shares	900,000	1,050,000	1,200,000
Net addition (redemption), shares	150,000	(150,000)	(100,000)
ProShares VIX Mid-Term Futures ETF [Member]
Addition, shares	3,425,000	9,475,000	1,950,000
Redemption, shares	2,350,000	9,800,000	2,450,000
Net addition (redemption), shares	1,075,000	(325,000)	(500,000)
ProShares VIX Short-Term Futures ETF [Member]
Addition, shares	17,050,000	5,612,500	3,315,000
Redemption, shares	11,175,000	5,183,985	1,946,404
Net addition (redemption), shares	5,875,000	428,515	1,368,596

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