v3.26.1
Document And Entity Information
Mar. 31, 2026
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Mar. 31, 2026
Entity Registrant Name MKS INC.
Entity Central Index Key 0001049502
Entity Emerging Growth Company false
Entity File Number 000-23621
Entity Incorporation, State or Country Code MA
Entity Tax Identification Number 04-2277512
Entity Address, Address Line One 2 Tech Drive
Entity Address, City or Town Andover
Entity Address, State or Province MA
Entity Address, Postal Zip Code 01810
City Area Code 978
Local Phone Number 645-5500
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, no par value
Trading Symbol MKSI
Security Exchange Name NASDAQ