Statements of Changes in Net Assets (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Net Assets, Beginning of Period	$ 17,628,525,082	$ 11,544,738,146
Operations:
Net investment loss	(11,818,169)	(7,619,352)
Net realized gain	151,646,482	5,847,432
Net change in unrealized appreciation/depreciation	831,013,860	114,176,495
Net increase in net assets resulting from operations	970,842,173	112,404,575
Capital Share Transactions:
Contributions for Shares issued	2,615,209,304	1,064,902,289
Distributions for Shares redeemed	(991,396,287)	(165,713,340)
Net increase in net assets from capital share transactions	1,623,813,017	899,188,949
Increase in net assets	2,594,655,190	1,011,593,524
Net Assets, End of Period	$ 20,223,180,272	$ 12,556,331,670
Shares issued and redeemed
Shares issued (in shares)	171,400,000	85,500,000
Shares redeemed (in shares)	(66,550,000)	(13,350,000)
Net increase in Shares issued and outstanding (in shares)	104,850,000	72,150,000