| Document and Entity Information | Feb. 04, 2022 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | Feb. 4, 2022 |
| Entity Registrant Name | WORLD GOLD TRUST |
| Entity Incorporation, State or Country Code | NY |
| 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 Avenue 27th Floor |
| 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 MiniSharesSM Trust |
| Trading Symbol | GLDM |
| Security Exchange Name | NYSEArca |
| Entity Emerging Growth Company | false |
| Amendment Flag | false |
| Entity Central Index Key | 0001618181 |
