| Cover | Oct. 05, 2020 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | Oct. 5, 2020 |
| Entity Registrant Name | 10x Genomics, Inc. |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-39035 |
| Entity Tax Identification Number | 45-5614458 |
| Entity Address, Address Line One | 6230 Stoneridge Mall Road |
| Entity Address, City or Town | Pleasanton |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 94588 |
| City Area Code | 925 |
| Local Phone Number | 401-7300 |
| 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, par value $0.00001 per share |
| Trading Symbol | TXG |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
| Amendment Flag | false |
| Entity Central Index Key | 0001770787 |
