Restructuring, Asset-Related, and Other Charges - Restructuring Program Schedule (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning	$ 27	$ 34
Charges to income	14	24
Payments	(25)	(31)
Restructuring reserve, ending	16	27
Fluoroproducts Lines Shutdown [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning	0	1
Charges to income	0	0
Payments	0	(1)
Restructuring reserve, ending	0	0
Chemical Solutions Site Closures [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning	2	8
Charges to income	0	0
Payments	(2)	(6)
Restructuring reserve, ending	0	2
Titanium Technologies Site Closure [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning	1	4
Charges to income	0	0
Payments	(1)	(3)
Restructuring reserve, ending	0	1
2015 Global Restructuring Program [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning	1	21
Charges to income	0	1
Payments	0	(21)
Restructuring reserve, ending	1	1
2017 Restructuring Program [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning	23	0
Charges to income	9	23
Payments	(22)	0
Restructuring reserve, ending	10	23
2018 Restructuring Program [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning	0	0
Charges to income	5	0
Payments	0	0
Restructuring reserve, ending	$ 5	$ 0

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.

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References

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

+ References

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