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Geographic and Segment Information - Reconciliation of Segment Adjusted EBITDA from Segments to Consolidated Income (Loss) Before Income Taxes (Details) (Parenthetical) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Segment Reporting Information [Line Items]
Legal charges	$ 49	$ 175	$ 82
PFOA Multi District Litigation in Ohio [Member]
Segment Reporting Information [Line Items]
Legal charges	29
GenX and Other Perfluorinated and Polyfluorinated Compounds [Member]
Segment Reporting Information [Line Items]
Legal charges	8	168	63
On-site Remediation [Member]
Segment Reporting Information [Line Items]
Legal charges	5
Oakley California Site [Member]
Segment Reporting Information [Line Items]
Gain on sale of asset	$ 6
East Chicago, Indiana [Member]
Segment Reporting Information [Line Items]
Gain on sale of asset			3
Linden, New Jersey Sites [Member]
Segment Reporting Information [Line Items]
Gain on sale of asset			$ 42
Repauno, New Jersey Sites [Member]
Segment Reporting Information [Line Items]
Gain on sale of asset		9
Netherlands Pension Plan [Member]
Segment Reporting Information [Line Items]
Settlement loss		$ 380

X

- Definition

Amount of gain (loss) recognized in net periodic benefit (cost) credit from irrevocable action relieving primary responsibility for benefit obligation and eliminating risk related to obligation and assets used to effect settlement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (h)(7)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Section 45
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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-Section 50
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-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e2709-114920

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- Definition

The difference between the carrying value and the sale price of real estate or properties that were intended to be sold or held for capital appreciation or rental income. This element refers to the gain (loss) included in earnings and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (c)
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

The amount of expense provided in the period for legal costs incurred on or before the balance sheet date pertaining to resolved, pending or threatened litigation, including arbitration and mediation proceedings.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
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