| Document And Entity Information | Mar. 29, 2023 |
| Document Information [Line Items] | |
| Entity, Registrant Name | WORLD GOLD TRUST |
| Document, Type | 8-K |
| Document, Period End Date | Mar. 29, 2023 |
| Entity, Incorporation, State or Country Code | DE |
| Entity, File Number | 001-37996 |
| Entity, Tax Identification Number | 36-7650517 |
| Entity, Address, Address Line One | c/o WGC USA Asset Management Company, LLC |
| Entity, Address, Address Line Two | 685 Third Ave., Suite 2702 |
| Entity, Address, City or Town | New York |
| Entity, Address, State or Province | NY |
| Entity, Address, Postal Zip Code | 10017 |
| City Area Code | 212 |
| Local Phone Number | 317-3800 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | SPDR® Gold MiniShares® |
| Trading Symbol | GLDM® |
| Security Exchange Name | NYSE |
| Entity, Emerging Growth Company | false |
| Amendment Flag | false |
| Entity, Central Index Key | 0001618181 |
