Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2022	Aug. 10, 2022
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2022
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q2
Entity Registrant Name	Ventyx Biosciences, Inc.
Entity Central Index Key	0001851194
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Filer Category	Non-accelerated Filer
Entity Interactive Data Current	Yes
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	false
Entity File Number	001-40928
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	83-2996852
Entity Address, Address Line One	662 Encinitas Blvd
Entity Address, Address Line Two	Suite 250
Entity Address, City or Town	Encinitas
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	92024
City Area Code	760
Local Phone Number	593-4832
Document Quarterly Report	true
Document Transition Report	false
Entity Common Stock, Shares Outstanding		50,917,801
Title of 12(b) Security	Common Stock, $0.0001 par value per share
Trading Symbol	VTYX
Security Exchange Name	NASDAQ