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SEGMENT INFORMATION Part 1 (Details) $ in Millions		3 Months Ended								12 Months Ended
		Dec. 31, 2019 USD ($)	Sep. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Sep. 30, 2018 USD ($)	Jun. 30, 2018 USD ($)	Mar. 31, 2018 USD ($)	Dec. 31, 2019 USD ($) Segment	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Segment Reporting Information [Line Items]
Number of Reportable Segments | Segment										4
Sales [Abstract]
Sales		$ 2,205	$ 2,325	$ 2,363	$ 2,380	$ 2,376	$ 2,547	$ 2,621	$ 2,607	$ 9,273	$ 10,151	$ 9,549
Operating Earnings (loss) [Abstract]
Income (Loss) from Continuing Operations before Interest Expense, Interest Income, Income Taxes, Noncontrolling Interests, Net										1,120	1,552	1,530
Assets by Segment [Abstract]
Assets by Segment	[1]	16,008				15,995				16,008	15,995
Depreciation and Amortization Expense by Segment [Abstract]
Depreciation and amortization expense by segment										611	604	587
Capital Expenditures by Segment [Abstract]
Capital expenditure by Segment										425	528	649
Property, Plant and Equipment, Net		5,571				5,600				5,571	5,600	5,607
Additives And Functional Products [Member]
Sales [Abstract]
Sales										3,273	3,647	3,343
Operating Earnings (loss) [Abstract]
Income (Loss) from Continuing Operations before Interest Expense, Interest Income, Income Taxes, Noncontrolling Interests, Net										496	639	653
Assets by Segment [Abstract]
Assets by Segment	[1]	6,387				6,545				6,387	6,545
Depreciation and Amortization Expense by Segment [Abstract]
Depreciation and amortization expense by segment										218	219	213
Capital Expenditures by Segment [Abstract]
Capital expenditure by Segment										152	150	229
Advanced Materials [Member]
Sales [Abstract]
Sales										2,688	2,755	2,572
Operating Earnings (loss) [Abstract]
Income (Loss) from Continuing Operations before Interest Expense, Interest Income, Income Taxes, Noncontrolling Interests, Net										517	509	483
Assets by Segment [Abstract]
Assets by Segment	[1]	4,415				4,456				4,415	4,456
Depreciation and Amortization Expense by Segment [Abstract]
Depreciation and amortization expense by segment										172	169	164
Capital Expenditures by Segment [Abstract]
Capital expenditure by Segment										130	187	248
Chemical Intermediates [Member]
Sales [Abstract]
Sales										2,443	2,831	2,728
Operating Earnings (loss) [Abstract]
Income (Loss) from Continuing Operations before Interest Expense, Interest Income, Income Taxes, Noncontrolling Interests, Net										170	308	255
Assets by Segment [Abstract]
Assets by Segment	[1]	2,775				2,934				2,775	2,934
Depreciation and Amortization Expense by Segment [Abstract]
Depreciation and amortization expense by segment										150	151	148
Capital Expenditures by Segment [Abstract]
Capital expenditure by Segment										98	137	116
Fibers [Member]
Sales [Abstract]
Sales										869	918	852
Operating Earnings (loss) [Abstract]
Income (Loss) from Continuing Operations before Interest Expense, Interest Income, Income Taxes, Noncontrolling Interests, Net										194	257	181
Assets by Segment [Abstract]
Assets by Segment	[1]	1,014				978				1,014	978
Depreciation and Amortization Expense by Segment [Abstract]
Depreciation and amortization expense by segment										64	64	58
Capital Expenditures by Segment [Abstract]
Capital expenditure by Segment										42	50	52
All Operating Segments [Member]
Sales [Abstract]
Sales										9,273	10,151	9,495
Operating Earnings (loss) [Abstract]
Income (Loss) from Continuing Operations before Interest Expense, Interest Income, Income Taxes, Noncontrolling Interests, Net										1,377	1,713	1,572
Assets by Segment [Abstract]
Assets by Segment	[1]	14,591				14,913				14,591	14,913
Depreciation and Amortization Expense by Segment [Abstract]
Depreciation and amortization expense by segment										604	603	583
Capital Expenditures by Segment [Abstract]
Capital expenditure by Segment										422	524	645
Other [Member]
Sales [Abstract]
Sales										0	0	54
Depreciation and Amortization Expense by Segment [Abstract]
Depreciation and amortization expense by segment										7	1	4
Capital Expenditures by Segment [Abstract]
Capital expenditure by Segment										3	4	4
Corporate Assets [Member]
Assets by Segment [Abstract]
Assets by Segment	[1]	1,417				1,082				1,417	1,082
UNITED STATES
Sales [Abstract]
Sales										3,720	4,118	3,999
Capital Expenditures by Segment [Abstract]
Property, Plant and Equipment, Net		4,178				4,228				4,178	4,228	4,203
All Foreign Countries [Member]
Sales [Abstract]
Sales										5,553	6,033	5,550
Capital Expenditures by Segment [Abstract]
Property, Plant and Equipment, Net		$ 1,393				$ 1,372				1,393	1,372	1,404
Corporate, Non-Segment [Member] | Other Nonoperating Income (Expense) [Member]
Operating Earnings (loss) [Abstract]
Income (Loss) from Continuing Operations before Interest Expense, Interest Income, Income Taxes, Noncontrolling Interests, Net										(9)	(24)	(16)
Corporate, Non-Segment [Member] | Growth initiatives and businesses not allocated to operating segments
Operating Earnings (loss) [Abstract]
Income (Loss) from Continuing Operations before Interest Expense, Interest Income, Income Taxes, Noncontrolling Interests, Net										(102)	(114)	(114)
Corporate, Non-Segment [Member] | Pension and other postretirement benefit plans income (expense), net not allocated to operating segments
Operating Earnings (loss) [Abstract]
Income (Loss) from Continuing Operations before Interest Expense, Interest Income, Income Taxes, Noncontrolling Interests, Net										(97)	(17)	93
Corporate, Non-Segment [Member] | Acquisition integration and transaction costs [Member]
Operating Earnings (loss) [Abstract]
Income (Loss) from Continuing Operations before Interest Expense, Interest Income, Income Taxes, Noncontrolling Interests, Net										$ (49)	$ (6)	$ (5)
[1] The chief operating decision maker holds operating segment management accountable for accounts receivable, inventory, fixed assets, goodwill, and intangible assets.

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