v3.25.2
Cover
Jul. 14, 2025
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Jul. 14, 2025
Entity File Number 1-9328
Entity Registrant Name ECOLAB INC.
Entity Central Index Key 0000031462
Entity Tax Identification Number 41-0231510
Entity Incorporation, State or Country Code DE
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
Title of 12(b) Security Common Stock, $1.00 par value
Trading Symbol ECL
Security Exchange Name NYSE
Entity Emerging Growth Company false