| Document and Entity Information | Apr. 09, 2022 |
| Cover [Abstract] | |
| Amendment Flag | false |
| Entity Central Index Key | 0001792789 |
| Document Type | 8-K |
| Document Period End Date | Apr. 9, 2022 |
| Entity Registrant Name | DoorDash, Inc. |
| Entity Incorporation State Country Code | DE |
| Entity File Number | 001-39759 |
| Entity Tax Identification Number | 46-2852392 |
| Entity Address, Address Line One | 303 2nd Street |
| Entity Address, Address Line Two | South Tower |
| Entity Address, Address Line Three | 8th Floor |
| Entity Address, City or Town | San Francisco |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 94107 |
| City Area Code | (650) |
| Local Phone Number | 487-3970 |
| Written Communications | true |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | Class A common stock, par value of $0.00001 per share |
| Trading Symbol | DASH |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
