Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 20
-Section 50
-Paragraph 4D
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=64830801&loc=SL51823488-111719

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4B
-Subparagraph (a),(c)
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624163-113959

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=51825145&loc=SL20226000-175313

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Derivative Instruments and Hedging Activities - Fair Value of Derivative Instruments (Details) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Foreign currency exchange contracts
Derivative instruments and hedging activities
Notional Amount	$ 2
Foreign currency exchange contracts \| Accrued liabilities \| Recurring \| Level 2
Derivative instruments and hedging activities
Liabilities	0
Forward contracts
Derivative instruments and hedging activities
Notional Amount	4	$ 21
Forward contracts \| Accrued liabilities \| Recurring \| Level 2
Derivative instruments and hedging activities
Liabilities		(2)
Forward contracts \| Receivables \| Recurring \| Level 2
Derivative instruments and hedging activities
Liabilities	$ 0
Metals contracts
Derivative instruments and hedging activities
Notional Amount		1
Metals contracts \| Accrued liabilities \| Recurring \| Level 2
Derivative instruments and hedging activities
Liabilities		$ 0