Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

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- Definition

Number of customers that accounted for 10% or more of revenue.

+ References

No definition available.

+ Details

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=84177426&loc=d3e6351-108592

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13531-108611

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=84177426&loc=d3e6404-108592

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13537-108611

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Details

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- Details

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Financial Instruments and Risk Concentration - Additional Information (Details) $ in Millions	12 Months Ended
	Dec. 31, 2017 USD ($) Customer	Dec. 31, 2016 Customer	Dec. 31, 2015
Direct sales to major customer \| Sales Revenue Segment
Valuation and Qualifying Accounts Disclosure [Line Items]
Sales to major customer			11.00%
Customer accounted for 10% or more of revenue \| Customer	0	0
Foreign Exchange Forward
Valuation and Qualifying Accounts Disclosure [Line Items]
Notional value of forward foreign currency exchange contracts	$ 365
Foreign Exchange Forward \| Japanese Yen
Valuation and Qualifying Accounts Disclosure [Line Items]
Notional value of forward foreign currency exchange contracts	140
Foreign Exchange Forward \| Euros
Valuation and Qualifying Accounts Disclosure [Line Items]
Notional value of forward foreign currency exchange contracts	49
Foreign Exchange Forward \| British Pound Sterling
Valuation and Qualifying Accounts Disclosure [Line Items]
Notional value of forward foreign currency exchange contracts	$ 59