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RELATED PARTY AND PARTY-IN-INTEREST TRANSACTIONS (Details) - ECOLAB SAVINGS PLAN AND ESOP - Ecolab Inc. - Common stock - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
RELATED PARTY AND PARTY-IN-INTEREST TRANSACTIONS    
Number of shares held 2,281,607 2,543,351
Purchase of investment $ 185.8  
Sale of investment $ 256.9