| Cover | Oct. 31, 2024 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | Oct. 31, 2024 |
| Entity Registrant Name | IQVIA HOLDINGS INC. |
| (State or other jurisdiction of incorporation) | DE |
| (Commission File Number) | 001-35907 |
| (IRS Employer Identification No.) | 27-1341991 |
| Entity Address, Street | 2400 Ellis Rd. |
| Entity Address, City | Durham |
| Entity Address, State | NC |
| Entity Address, Postal Zip Code | 27703 |
| City Area Code | 919 |
| Local Phone Number | 998-2000 |
| 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 | 0001478242 |
| Amendment Flag | false |
