SCHEDULE H, LINE 4i - SCHEDULE OF ASSETS (HELD AT END OF YEAR) (Details) - ECOLAB SAVINGS PLAN AND ESOP - USD ($)
$ in Thousands |
12 Months Ended |
|
Dec. 31, 2025 |
Dec. 31, 2024 |
| SCHEDULE H, LINE 4i - SCHEDULE OF ASSETS (HELD AT END OF YEAR) |
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| Entity tax identification number |
41-0231510
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| Plan number |
003
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| Notes receivable from participants |
$ 53,540
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$ 49,907
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| EBP, Asset Held for Investment, Participant Loan, Maturity Date |
Dec. 01, 2040
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| Total assets |
$ 4,629,491
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| Minimum |
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| SCHEDULE H, LINE 4i - SCHEDULE OF ASSETS (HELD AT END OF YEAR) |
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| Interest rates of notes receivable from participants |
3.25%
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| Maximum |
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| SCHEDULE H, LINE 4i - SCHEDULE OF ASSETS (HELD AT END OF YEAR) |
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| Interest rates of notes receivable from participants |
10.00%
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| Investment, Identifier [Axis]: American Funds EuroPacific Growth Fund Mutual Fund Registered investment companies |
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| SCHEDULE H, LINE 4i - SCHEDULE OF ASSETS (HELD AT END OF YEAR) |
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| Investment issuer name |
ecl:AmericanFundsEuropacificGrowthFundMember
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| Investment current value type |
Registered investment companies
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| Current Value |
$ 94,343
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| Investment, Identifier [Axis]: Dodge & Cox Income Fund Mutual Fund Registered investment companies |
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| SCHEDULE H, LINE 4i - SCHEDULE OF ASSETS (HELD AT END OF YEAR) |
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| Investment issuer name |
ecl:DodgeCoxIncomeFundMember
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| Investment current value type |
Registered investment companies
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| Current Value |
$ 96,219
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| Investment, Identifier [Axis]: Dodge & Cox Stock Fund Mutual Fund Registered investment companies |
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| SCHEDULE H, LINE 4i - SCHEDULE OF ASSETS (HELD AT END OF YEAR) |
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| Investment issuer name |
ecl:DodgeCoxStockFundMember
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| Investment current value type |
Registered investment companies
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| Current Value |
$ 158,070
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| Investment, Identifier [Axis]: Ecolab Inc Common Stock |
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| SCHEDULE H, LINE 4i - SCHEDULE OF ASSETS (HELD AT END OF YEAR) |
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| Investment issuer name |
Ecolab Inc.
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| Investment current value type |
Common stock
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| Current Value |
$ 598,967
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| Asset held for investment, party-in-interest |
true
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| Investment, Identifier [Axis]: Ecolab Stock Fund Cash and Cash Equivalents |
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| SCHEDULE H, LINE 4i - SCHEDULE OF ASSETS (HELD AT END OF YEAR) |
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| Investment issuer name |
Ecolab Inc.
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| Investment current value type |
us-gaap:CashAndCashEquivalentsMember
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| Current Value |
$ 5,109
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| Asset held for investment, party-in-interest |
true
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| Investment, Identifier [Axis]: Fidelity MIP II Class 3 Common/collective trusts |
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| SCHEDULE H, LINE 4i - SCHEDULE OF ASSETS (HELD AT END OF YEAR) |
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| Investment issuer name |
ecl:FidelityMipIiClass3Member
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| Investment current value type |
Common/collective trusts
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| Current Value |
$ 107,994
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| Asset held for investment, party-in-interest |
true
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| Investment, Identifier [Axis]: Fidelity US Bond Index Commingled Pool Common/collective trusts |
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| SCHEDULE H, LINE 4i - SCHEDULE OF ASSETS (HELD AT END OF YEAR) |
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| Investment issuer name |
ecl:FidelityUsBondIndexCommingledPoolMember
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| Investment current value type |
Common/collective trusts
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| Current Value |
$ 100,560
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| Asset held for investment, party-in-interest |
true
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| Investment, Identifier [Axis]: Harbor Capital Appreciation Fund Common/collective trusts |
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| SCHEDULE H, LINE 4i - SCHEDULE OF ASSETS (HELD AT END OF YEAR) |
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| Investment issuer name |
ecl:HarborCapitalAppreciationFundMember
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| Investment current value type |
Common/collective trusts
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| Current Value |
$ 240,699
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| Investment, Identifier [Axis]: SMID Cap Research Equity (Series 1) Portfolio Common/collective trusts |
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| SCHEDULE H, LINE 4i - SCHEDULE OF ASSETS (HELD AT END OF YEAR) |
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| Investment issuer name |
ecl:SmidCapResearchEquitySeries1PortfolioMember
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| Investment current value type |
Common/collective trusts
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| Current Value |
$ 95,538
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| Investment, Identifier [Axis]: Spartan 500 Index Fund Common/collective trusts |
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| SCHEDULE H, LINE 4i - SCHEDULE OF ASSETS (HELD AT END OF YEAR) |
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| Investment issuer name |
ecl:Spartan500IndexFundMember
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| Investment current value type |
Common/collective trusts
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| Current Value |
$ 911,572
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| Asset held for investment, party-in-interest |
true
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| Investment, Identifier [Axis]: Spartan Extended Market Index Fund Common/collective trusts |
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| SCHEDULE H, LINE 4i - SCHEDULE OF ASSETS (HELD AT END OF YEAR) |
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| Investment issuer name |
ecl:SpartanExtendedMarketIndexFundMember
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| Investment current value type |
Common/collective trusts
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| Current Value |
$ 212,163
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| Asset held for investment, party-in-interest |
true
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| Investment, Identifier [Axis]: Spartan Global Ex US Index Fund Common/collective trusts |
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| SCHEDULE H, LINE 4i - SCHEDULE OF ASSETS (HELD AT END OF YEAR) |
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| Investment issuer name |
ecl:SpartanGlobalExUsIndexFundMember
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| Investment current value type |
Common/collective trusts
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| Current Value |
$ 149,079
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| Asset held for investment, party-in-interest |
true
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| Investment, Identifier [Axis]: State Street Target Retirement 2025 Fund M Common/collective trusts |
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| SCHEDULE H, LINE 4i - SCHEDULE OF ASSETS (HELD AT END OF YEAR) |
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| Investment issuer name |
ecl:StateStreetTargetRetirement2025FundMMember
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| Investment current value type |
Common/collective trusts
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| Current Value |
$ 110,800
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| Investment, Identifier [Axis]: State Street Target Retirement 2030 Fund M Common/collective trusts |
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| SCHEDULE H, LINE 4i - SCHEDULE OF ASSETS (HELD AT END OF YEAR) |
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| Investment issuer name |
ecl:StateStreetTargetRetirement2030FundMMember
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| Investment current value type |
Common/collective trusts
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| Current Value |
$ 275,551
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| Investment, Identifier [Axis]: State Street Target Retirement 2035 Fund M Common/collective trusts |
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| SCHEDULE H, LINE 4i - SCHEDULE OF ASSETS (HELD AT END OF YEAR) |
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| Investment issuer name |
ecl:StateStreetTargetRetirement2035FundMMember
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| Investment current value type |
Common/collective trusts
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| Current Value |
$ 210,153
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| Investment, Identifier [Axis]: State Street Target Retirement 2040 Fund M Common/collective trusts |
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| SCHEDULE H, LINE 4i - SCHEDULE OF ASSETS (HELD AT END OF YEAR) |
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| Investment issuer name |
ecl:StateStreetTargetRetirement2040FundMMember
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| Investment current value type |
Common/collective trusts
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| Current Value |
$ 373,096
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| Investment, Identifier [Axis]: State Street Target Retirement 2045 Fund M Common/collective trusts |
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| SCHEDULE H, LINE 4i - SCHEDULE OF ASSETS (HELD AT END OF YEAR) |
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| Investment issuer name |
ecl:StateStreetTargetRetirement2045FundMMember
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| Investment current value type |
Common/collective trusts
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| Current Value |
$ 211,829
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| Investment, Identifier [Axis]: State Street Target Retirement 2050 Fund M Common/collective trusts |
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| SCHEDULE H, LINE 4i - SCHEDULE OF ASSETS (HELD AT END OF YEAR) |
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| Investment issuer name |
ecl:StateStreetTargetRetirement2050FundMMember
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| Investment current value type |
Common/collective trusts
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| Current Value |
$ 201,869
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| Investment, Identifier [Axis]: State Street Target Retirement 2055 Fund M Common/collective trusts |
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| SCHEDULE H, LINE 4i - SCHEDULE OF ASSETS (HELD AT END OF YEAR) |
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| Investment issuer name |
ecl:StateStreetTargetRetirement2055FundMMember
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| Investment current value type |
Common/collective trusts
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| Current Value |
$ 137,881
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| Investment, Identifier [Axis]: State Street Target Retirement 2060 Fund M Common/collective trusts |
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| SCHEDULE H, LINE 4i - SCHEDULE OF ASSETS (HELD AT END OF YEAR) |
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| Investment issuer name |
ecl:StateStreetTargetRetirement2060FundMMember
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| Investment current value type |
Common/collective trusts
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| Current Value |
$ 86,296
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| Investment, Identifier [Axis]: State Street Target Retirement 2065 Fund M Common/collective trusts |
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| SCHEDULE H, LINE 4i - SCHEDULE OF ASSETS (HELD AT END OF YEAR) |
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| Investment issuer name |
ecl:StateStreetTargetRetirement2065FundMMember
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| Investment current value type |
Common/collective trusts
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| Current Value |
$ 26,427
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| Investment, Identifier [Axis]: State Street Target Retirement Income Fund M Common/collective trusts |
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| SCHEDULE H, LINE 4i - SCHEDULE OF ASSETS (HELD AT END OF YEAR) |
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| Investment issuer name |
ecl:StateStreetTargetRetirementIncomeFundMMember
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| Investment current value type |
Common/collective trusts
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| Current Value |
$ 82,511
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| Investment, Identifier [Axis]: Vanguard Cash Reserves Federal Money Market Fund Admiral Shares Money Market Registered investment companies |
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| SCHEDULE H, LINE 4i - SCHEDULE OF ASSETS (HELD AT END OF YEAR) |
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| Investment issuer name |
ecl:VanguardCashReservesFederalMoneyMarketFundAdmiralSharesMember
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| Investment current value type |
Registered investment companies
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| Current Value |
$ 89,218
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| Investment, Identifier [Axis]: Vanguard Federal Money Market Fund Investor Shares Money Market Registered investment companies |
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| SCHEDULE H, LINE 4i - SCHEDULE OF ASSETS (HELD AT END OF YEAR) |
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| Investment issuer name |
ecl:VanguardFederalMoneyMarketFundInvestorSharesMember
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| Investment current value type |
Registered investment companies
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| Current Value |
$ 7
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| Registered investment companies |
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| SCHEDULE H, LINE 4i - SCHEDULE OF ASSETS (HELD AT END OF YEAR) |
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| Current Value |
437,857
|
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| Common/collective trusts |
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| SCHEDULE H, LINE 4i - SCHEDULE OF ASSETS (HELD AT END OF YEAR) |
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| Current Value |
$ 3,534,018
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