v3.26.1
Document and Entity Information
12 Months Ended
Dec. 31, 2025
Document Information [Line Items]  
Document Type 11-K
Entity Registrant Name ECOLAB INC.
Entity Central Index Key 0000031462
Amendment Flag false
ECOLAB SAVINGS PLAN AND ESOP  
Document Information [Line Items]  
Document Type 11-K
Amendment Flag false