Schedules of Investments (Unaudited) - Investments (Details)	Mar. 31, 2020 USD ($) oz	Dec. 31, 2019 USD ($) oz	Mar. 31, 2019 USD ($) oz	Dec. 31, 2018 USD ($) oz
Gold bullion (Ounce) \| oz	12,571,766	11,577,252	9,695,079	9,009,541
Investment in gold bullion, cost	$ 16,858,848,412	$ 15,094,673,874	$ 12,152,880,181	$ 11,255,129,376
Gold bullion fair value	20,227,343,435	17,632,155,037
Less Liabilities	(4,163,163)	(3,629,955)
Net Assets	$ 20,223,180,272	$ 17,628,525,082	$ 12,556,331,670	$ 11,544,738,146

Value of the investment at close of period. For schedules of investments that are categorized, the value would be aggregated by category. For investment in and advances to affiliates, if operations of any controlled companies are different in character from those of the company, group such affiliates within divisions and by type of activities.

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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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