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    ACCESSION NUMBER:		0000074303-25-000109
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		14
    CONFORMED PERIOD OF REPORT:	20250728
    ITEM INFORMATION:		Results of Operations and Financial Condition
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20250728
    DATE AS OF CHANGE:		20250728

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			OLIN Corp
    		CENTRAL INDEX KEY:			0000074303
    		STANDARD INDUSTRIAL CLASSIFICATION:	CHEMICALS & ALLIED PRODUCTS [2800]
    		ORGANIZATION NAME:           	08 Industrial Applications and Services
    		EIN:				131872319
    		STATE OF INCORPORATION:			VA
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-01070
    		FILM NUMBER:		251155641

    	BUSINESS ADDRESS:
    		STREET 1:		OLIN CORPORATION
    		STREET 2:		190 CARONDELET PLAZA SUITE 1530
    		CITY:			CLAYTON
    		STATE:			MO
    		ZIP:			63105
    		BUSINESS PHONE:		3144801400

    	MAIL ADDRESS:
    		STREET 1:		OLIN CORPORATION
    		STREET 2:		190 CARONDELET PLAZA SUITE 1530
    		CITY:			CLAYTON
    		STATE:			MO
    		ZIP:			63105

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	OLIN CORP
    		DATE OF NAME CHANGE:	19920703

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	OLIN MATHIESON CHEMICAL CORP
    		DATE OF NAME CHANGE:	19691008
    </SEC-HEADER>
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    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>oln-20250728.htm
    <DESCRIPTION>FORM 8-K 2Q25 EARNINGS RELEASE
    <TEXT>
    Document 1 - file: oln-20250728.htm

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    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>exhibit991q22025earningspr.htm
    <DESCRIPTION>EX-99.1 2Q25 EARNINGS RELEASE
    <TEXT>
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    <FILENAME>oln-20250728.xsd
    <DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
    <TEXT>
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    <TEXT>
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    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>olinlogoa.jpg
    <DESCRIPTION>OLIN LOGO
    <TEXT>
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    <TEXT>
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    <TEXT>
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    <TEXT>
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    <TYPE>XML
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    <TEXT>
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    <TYPE>JSON
    <SEQUENCE>14
    <FILENAME>MetaLinks.json
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    <TEXT>
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    <DOCUMENT>
    <TYPE>ZIP
    <SEQUENCE>15
    <FILENAME>0000074303-25-000109-xbrl.zip
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    <TEXT>
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    <DOCUMENT>
    <TYPE>XML
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    <FILENAME>oln-20250728_htm.xml
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