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Restructuring, Asset-Related, and Other Charges - Restructuring Program Schedule (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning	$ 16	$ 27
(Credits) charges to income	20	14
Payments	(21)	(25)
Restructuring reserve, ending	15	16
Chemical Solutions Site Closures [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning	0	2
(Credits) charges to income	0	0
Payments	0	(2)
Restructuring reserve, ending	0	0
Titanium Technologies Site Closure [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning	0	1
(Credits) charges to income	0	0
Payments	0	(1)
Restructuring reserve, ending	0	0
2015 Global Restructuring Program [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning	1	1
(Credits) charges to income	(1)	0
Payments	0	0
Restructuring reserve, ending	0	1
2017 Restructuring Program [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning	10	23
(Credits) charges to income	0	9
Payments	(9)	(22)
Restructuring reserve, ending	1	10
2018 Restructuring Program [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning	5	0
(Credits) charges to income	(1)	5
Payments	(4)	0
Restructuring reserve, ending	0	5
2019 Restructuring Program [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning	0	0
(Credits) charges to income	22	0
Payments	(8)	0
Restructuring reserve, ending	$ 14	$ 0

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- Definition

Restructuring charges (credits) to income.

+ References

No definition available.

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- Definition

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 17
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3367-108585

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- Definition

Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB TOPIC 5.P.4(b))
-URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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