RELATED PARTY AND PARTY-IN-INTEREST TRANSACTIONS (Details) - ECOLAB SAVINGS PLAN AND ESOP - Ecolab Inc. - Common stock - USD ($) $ in Millions |
12 Months Ended | |
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Dec. 31, 2025 |
Dec. 31, 2024 |
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| 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 |
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- Definition Cost of investment, excluding plan interest in master trust, acquired by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Number of shares or units of investment held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of selling price for investment, excluding plan interest in master trust, sold by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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