| Document and Entity Information | Apr. 12, 2022 |
| Cover [Abstract] | |
| Entity Address, State or Province | NY |
| Amendment Flag | false |
| Entity Central Index Key | 0001222333 |
| Document Type | 8-K |
| Document Period End Date | Apr. 12, 2022 |
| Entity Registrant Name | SPDR® GOLD TRUST |
| Entity Incorporation State Country Code | NY |
| Entity File Number | 001-32356 |
| Entity Tax Identification Number | 81-6124035 |
| Entity Address, Address Line One | c/o World Gold Trust Services, LLC |
| Entity Address, Address Line Two | 685 Third Avenue, 27th Floor |
| Entity Address, City or Town | New York |
| 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 |
| Security 12b Title | SPDR® Gold Trust |
| Trading Symbol | GLD |
| Security Exchange Name | NYSEArca |
| Entity Emerging Growth Company | false |
