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SIGNIFICANT ACCOUNTING POLICIES Recently Issued Accounting Standards (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Receivable Sold Under Factoring Arrangement	$ 289	$ 457

X

- Definition

Receivable Sold Under Factoring Arrangement

+ References

No definition available.

+ Details

Name:	emn_ReceivableSoldUnderFactoringArrangement
Namespace Prefix:	emn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration