| Document and Entity Information | Dec. 07, 2023 |
| Document And Entity Information [Line Items] | |
| Entity Registrant Name | EASTMAN CHEMICAL CO |
| Amendment Flag | false |
| Entity Central Index Key | 0000915389 |
| Document Type | 8-K |
| Document Period End Date | Dec. 07, 2023 |
| Entity Incorporation State Country Code | DE |
| Entity File Number | 1-12626 |
| Entity Tax Identification Number | 62-1539359 |
| Entity Address, Address Line One | 200 South Wilcox Drive |
| Entity Address, City or Town | Kingsport |
| Entity Address, State or Province | TN |
| Entity Address, Postal Zip Code | 37662 |
| City Area Code | (423) |
| Local Phone Number | 229-2000 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Common Stock [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Common Stock, par value $0.01 per share |
| Trading Symbol | EMN |
| Security Exchange Name | NYSE |
| Deferrable Notes [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | 1.875% Notes Due 2026 |
| Trading Symbol | EMN26 |
| Security Exchange Name | NYSE |
