Document and Entity Information |
Apr. 29, 2026 |
|---|---|
| Cover [Abstract] | |
| Document Type | 8-K/A |
| Amendment Flag | true |
| Document Period End Date | Apr. 29, 2026 |
| Entity Registrant Name | OLIN CORPORATION |
| Entity Incorporation State Country Code | VA |
| Entity File Number | 1-1070 |
| Entity Tax Identification Number | 13-1872319 |
| Entity Address Address Line 1 | 190 Carondelet Plaza |
| Entity Address Address Line 2 | Suite 1530 |
| Entity Address City Or Town | Clayton |
| Entity Address State Or Province | MO |
| Entity Address Postal Zip Code | 63105 |
| City Area Code | 314 |
| Local Phone Number | 480-1400 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | Common Stock, $1.00 par value per share |
| Trading Symbol | OLN |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
| Amendment Description | On April 30, 2026, Olin Corporation (the “Corporation”) filed a Current Report on Form 8-K (the “Original Form 8-K”) disclosing the voting results from its 2026 Annual Meeting of Shareholders held on April 30, 2026. The Corporation’s inspector of elections subsequently informed the Corporation of a typographical error in the results it reported to the Corporation for Proposal 4 (Ratification of appointment of KPMG LLP as independent registered public accounting firm for 2026) and provided corrected voting results for Proposal 4. Although the corrected voting results do not change the outcome for Proposal 4, the Corporation is filing this Amendment No. 1 to the Original Form 8-K to provide the corrected information received from its inspector of elections. The corrected voting results provided below replace the results previously disclosed with respect to Proposal 4 in the Original Form 8-K. No other changes have been made to the Original Form 8-K. |
| Entity Central Index Key | 0000074303 |