Cover Page - shares	9 Months Ended
	Sep. 30, 2022	Oct. 21, 2022
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2022
Document Transition Report	false
Entity File Number	001-35907
Entity Registrant Name	IQVIA HOLDINGS INC.
Entity Incorporation, State	DE
Entity Tax Identification Number	27-1341991
Entity Address, Street	4820 Emperor Blvd.
Entity Address, City	Durham
Entity Address, State	NC
Entity Address, Postal Zip Code	27703
City Area Code	919
Local Phone Number	998-2000
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Title of Each Class	Common Stock, par value $0.01 per share
Trading Symbol	IQV
Name of Each Exchange on which Registered	NYSE
Entity Common Stock, Shares Outstanding		185,740,023
Current Fiscal Year End Date	--12-31
Entity Central Index Key	0001478242
Amendment Flag	false
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q3