| Cover Page | Sep. 14, 2021 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | Sep. 14, 2021 |
| Entity Registrant Name | Coinbase Global, Inc. |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-40289 |
| Entity Tax Identification Number | 46-4707224 |
| Entity Central Index Key | 0001679788 |
| Amendment Flag | false |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Class A common stock, $0.00001 par value |
| Trading Symbol | COIN |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
