| Document and Entity Information Document | Feb. 23, 2021 | Dec. 11, 2020 |
| Document Information [Line Items] | ||
| Entity Central Index Key | 0001326380 | |
| Amendment Flag | false | |
| Title of 12(b) Security | Class A Common Stock | |
| Entity Incorporation, State or Country Code | DE | |
| Document Type | 8-K | |
| Document Period End Date | Feb. 23, 2021 | |
| Entity Registrant Name | GameStop Corp. | |
| Entity File Number | 1-32637 | |
| Entity Tax Identification Number | 20-2733559 | |
| Entity Address, Address Line One | 625 Westport Parkway | |
| Entity Address, City or Town | Grapevine | |
| Entity Address, State or Province | TX | |
| Entity Address, Postal Zip Code | 76051 | |
| City Area Code | 817 | |
| Local Phone Number | 424-2000 | |
| Written Communications | false | |
| Soliciting Material | false | |
| Pre-commencement Tender Offer | false | |
| Pre-commencement Issuer Tender Offer | false | |
| Trading Symbol | GME | |
| Security Exchange Name | NYSE | |
| Entity Emerging Growth Company | false |
