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SEGMENT AND REGIONAL SALES INFORMATION (Details) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2021 USD ($) Segment | Mar. 31, 2020 USD ($) | Dec. 31, 2020 USD ($)
Segment Reporting Information [Line Items] |  |  |  |
Number of Operating Segments | Segment |  | 4 |  |
Sales [Abstract] |  |  |  |
Sales |  | $ 2,409 | $ 2,241 |
Earnings (Loss) Before Interest and Taxes [Abstract] |  |  |  |
Earnings before interest and taxes |  | 389 | 368 |
Segment Reporting Information, Additional Information [Abstract] |  |  |  |
Assets by Segment | [1] | 16,195 |  | $ 16,083
Operating Segments [Member] |  |  |  |
Earnings (Loss) Before Interest and Taxes [Abstract] |  |  |  |
Earnings before interest and taxes |  | 395 | 376 |
Segment Reporting Information, Additional Information [Abstract] |  |  |  |
Assets by Segment | [1] | 14,335 |  | 14,175
Growth Initiatives and Businesses not Allocated to Segments [Member] |  |  |  |
Earnings (Loss) Before Interest and Taxes [Abstract] |  |  |  |
Earnings before interest and taxes |  | (29) | (23) |
Pension and OPEB Costs Not Allocated to Operating Segments [Member] |  |  |  |
Earnings (Loss) Before Interest and Taxes [Abstract] |  |  |  |
Earnings before interest and taxes |  | 27 | 21 |
Other Nonoperating Income (Expense) [Member] |  |  |  |
Earnings (Loss) Before Interest and Taxes [Abstract] |  |  |  |
Earnings before interest and taxes |  | (4) | (6) |
Additives And Functional Products [Member] |  |  |  |
Earnings (Loss) Before Interest and Taxes [Abstract] |  |  |  |
Earnings before interest and taxes |  | 135 | 143 |
Segment Reporting Information, Additional Information [Abstract] |  |  |  |
Assets by Segment | [1] | 6,304 |  | 6,238
Additives And Functional Products [Member] | Operating Segments [Member] |  |  |  |
Sales [Abstract] |  |  |  |
Sales |  | 871 | 822 |
Advanced Materials [Member] |  |  |  |
Earnings (Loss) Before Interest and Taxes [Abstract] |  |  |  |
Earnings before interest and taxes |  | 146 | 100 |
Segment Reporting Information, Additional Information [Abstract] |  |  |  |
Assets by Segment | [1] | 4,392 |  | 4,345
Advanced Materials [Member] | Operating Segments [Member] |  |  |  |
Sales [Abstract] |  |  |  |
Sales |  | 716 | 615 |
Chemical Intermediates [Member] |  |  |  |
Earnings (Loss) Before Interest and Taxes [Abstract] |  |  |  |
Earnings before interest and taxes |  | 69 | 80 |
Segment Reporting Information, Additional Information [Abstract] |  |  |  |
Assets by Segment | [1] | 2,643 |  | 2,614
Chemical Intermediates [Member] | Operating Segments [Member] |  |  |  |
Sales [Abstract] |  |  |  |
Sales |  | 605 | 592 |
Fibers [Member] |  |  |  |
Earnings (Loss) Before Interest and Taxes [Abstract] |  |  |  |
Earnings before interest and taxes |  | 45 | 53 |
Segment Reporting Information, Additional Information [Abstract] |  |  |  |
Assets by Segment | [1] | 996 |  | 978
Fibers [Member] | Operating Segments [Member] |  |  |  |
Sales [Abstract] |  |  |  |
Sales |  | 217 | 212 |
Corporate and Other |  |  |  |
Segment Reporting Information, Additional Information [Abstract] |  |  |  |
Assets by Segment | [1] | 1,860 |  | $ 1,908
North America [Member] |  |  |  |
Sales [Abstract] |  |  |  |
Sales |  | 1,004 | 980 |
Asia Pacific [Member] |  |  |  |
Sales [Abstract] |  |  |  |
Sales |  | 608 | 495 |
EMEA [Member] |  |  |  |
Sales [Abstract] |  |  |  |
Sales |  | 656 | 631 |
Latin America [Member] |  |  |  |
Sales [Abstract] |  |  |  |
Sales |  | $ 141 | $ 135 |
[1] | Segment assets include accounts receivable, inventory, fixed assets, goodwill, and intangible assets.

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