| Document and Entity Information | Sep. 23, 2024 |
| Document Information [Line Items] | |
| Document Type | 8-K |
| Document Period End Date | Sep. 23, 2024 |
| Entity Registrant Name | DBV Technologies S.A. |
| Entity Incorporation State Country Code | I0 |
| Entity File Number | 001-36697 |
| Entity Tax Identification Number | 00-0000000 |
| Entity Address Address Line 1 | 107 avenue de la République |
| Entity Address Postal Zip Code | 92320 |
| Entity Address City Or Town | Châtillon |
| Entity Address Country | FR |
| Country Region | 33 |
| City Area Code | 1 |
| Local Phone Number | 55 42 78 78 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0001613780 |
| Amendment Flag | false |
| Common Stock [Member] | |
| Document Information [Line Items] | |
| Security 12b Title | Ordinary shares, nominal value €0.10 per share |
| No Trading Symbol Flag | true |
| Security Exchange Name | NASDAQ |
| American Depositary Share [Member] | |
| Document Information [Line Items] | |
| Security 12b Title | American Depositary Shares, each representing one ordinary share, nominal value €0.10 per share |
| Security Exchange Name | NASDAQ |
| Trading Symbol | DBVT |
