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Cover Page
Jan. 28, 2021
May 07, 2020
Entity Information [Line Items]    
Document Type 8-K  
Document Period End Date Jan. 28, 2021  
Entity Registrant Name EASTMAN CHEMICAL CO  
Entity Incorporation, State or 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  
Entity Central Index Key   0000915389
Amendment Flag   false
Common Stock    
Entity Information [Line Items]    
Title of 12(b) Security Common Stock, par value $0.01 per share  
Trading Symbol EMN  
Security Exchange Name NYSE  
Notes Due 2023    
Entity Information [Line Items]    
Title of 12(b) Security 1.50% Notes Due 2023  
Trading Symbol EMN23  
Security Exchange Name NYSE  
1.875% notes due November 2026    
Entity Information [Line Items]    
Title of 12(b) Security 1.875% Notes Due 2026  
Trading Symbol EMN26  
Security Exchange Name NYSE