Document and Entity Information Document - USD ($) $ / shares in Units, $ in Billions	12 Months Ended
	Dec. 31, 2022	Jan. 26, 2023	Jun. 30, 2022	Dec. 31, 2021
Document and Entity Information
Amendment Flag	false
City Area Code	44
Document Type	10-K
Document Annual Report	true
Document Transition Report	false
Document Period End Date	Dec. 31, 2022
Entity Central Index Key	0001037646
Current Fiscal Year End Date	--12-31
Entity File Number	001-13595
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	FY
Entity Registrant Name	Mettler-Toledo International Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	13-3668641
Entity Address, Address Line One	Im Langacher 44
Entity Address, City or Town	Greifensee
Entity Address, Postal Zip Code	CH 8606
Entity Address, Country	CH
Local Phone Number	944-22-11
Title of 12(b) Security	Common Stock, $0.01 par value
Trading Symbol	MTD
Security Exchange Name	NYSE
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
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
Entity Common Stock, Shares Outstanding		22,106,175
Common Stock, Par or Stated Value Per Share	$ 0.01			$ 0.01
Entity Public Float			$ 25.9
ICFR Auditor Attestation Flag	true
Other Address
Document and Entity Information
City Area Code	614
Entity Address, Address Line One	1900 Polaris Parkway
Entity Address, City or Town	Columbus
Entity Address, State or Province	OH
Entity Address, Postal Zip Code	43240
Local Phone Number	438-4511