Schedules of Investments (Unaudited) - Investments (Details)	Sep. 30, 2020 USD ($) oz	Jun. 30, 2020 USD ($) oz	Mar. 31, 2020 USD ($)	Dec. 31, 2019 USD ($) oz	Sep. 30, 2019 USD ($) oz	Jun. 30, 2019 USD ($) oz	Mar. 31, 2019 USD ($)	Dec. 31, 2018 USD ($) oz
Gold bullion (Ounce) | oz	16,660,458	14,658,518		11,577,252	11,011,987	9,474,090		9,009,541
Investment in gold bullion, cost	$ 24,368,528,904	$ 20,470,354,346		$ 15,094,673,874	$ 14,230,489,101	$ 11,930,367,963		$ 11,255,129,376
Gold bullion fair value	31,436,617,757			17,632,155,037
Less Liabilities	(6,535,329)			(3,629,955)
Net Assets	$ 31,430,082,428	$ 25,912,624,790	$ 20,223,180,272	$ 17,628,525,082	$ 16,352,798,380	$ 13,346,432,796	$ 12,556,331,670	$ 11,544,738,146