Document and Entity Information
| Document and Entity Information | Jun. 08, 2021 |
| Cover [Abstract] | |
| Amendment Flag | false |
| Entity Central Index Key | 0001822250 |
| Document Type | 8-K |
| Document Period End Date | Jun. 8, 2021 |
| Entity Registrant Name | ContextLogic Inc. |
| Entity Incorporation State Country Code | DE |
| Entity File Number | 001-39775 |
| Entity Tax Identification Number | 27-2930953 |
| Entity Address, Address Line One | One Sansome Street |
| Entity Address, Address Line Two | 40th Floor |
| Entity Address, City or Town | San Francisco |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 94104 |
| City Area Code | (415) |
| Local Phone Number | 432-7323 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | Class A Common Stock, par value $0.0001 per share |
| Trading Symbol | WISH |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |