v3.25.2
Document and Entity Information
Jul. 29, 2025
Document and Entity Information [Abstract]  
Document Type 8-K
Document Period End Date Jul. 29, 2025
Entity Registrant Name ECOLAB INC.
Entity Incorporation, State or Country Code DE
Entity File Number 1-9328
Entity Tax Identification Number 41-0231510
Entity Address, Address Line One 1 Ecolab Place
Entity Address, City or Town Saint Paul
Entity Address State Or Province MN
Entity Address, Postal Zip Code 55102
City Area Code 800
Local Phone Number 232-6522
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 0000031462
Amendment Flag false