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Geographic and Segment Information - Schedule of Net Sales to External Customers by Product Group (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Net sales	$ 1,353	$ 1,390	$ 1,408	$ 1,376	$ 1,464	$ 1,628	$ 1,816	$ 1,730	$ 5,526	$ 6,638	$ 6,183
Divested Business [Member]
Segment Reporting Information [Line Items]
Net sales											4
Fluoropolymers [Member]
Segment Reporting Information [Line Items]
Net sales									1,330	1,365	1,276
Fluorochemicals [Member]
Segment Reporting Information [Line Items]
Net sales									1,318	1,497	1,378
Performance Chemicals and Intermediates [Member]
Segment Reporting Information [Line Items]
Net sales									265	313	306
Mining Solutions [Member]
Segment Reporting Information [Line Items]
Net sales									268	289	261
Titanium Dioxide and Other Minerals [Member]
Segment Reporting Information [Line Items]
Net sales									$ 2,345	$ 3,174	$ 2,958

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045

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