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Derivative Financial Instruments (Details Textual) $ in Millions		3 Months Ended
		Mar. 31, 2018 USD ($)	Mar. 31, 2017 USD ($)	Dec. 31, 2017 USD ($)	Mar. 11, 2016 USD ($)	Mar. 11, 2016 EUR (€)
Derivative [Line Items]
Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months		$ 2
Revenues		1,217
Foreign Exchange Contract
Derivative Financial Instruments (Textual) [Abstract]
Notional amount		372		$ 455
Derivatives designated as hedging instruments | Sell USD Buy EUR [Member]
Derivative Financial Instruments (Textual) [Abstract]
Notional amount		123		147
Derivatives designated as hedging instruments | Sell EUR Buy PLN
Derivative Financial Instruments (Textual) [Abstract]
Notional amount		30		34
Derivatives designated as hedging instruments | Buy USD Sell CDN [Member]
Derivative Financial Instruments (Textual) [Abstract]
Notional amount		23		28
Derivatives designated as hedging instruments | Sell CDN Buy EUR [Member]
Derivative Financial Instruments (Textual) [Abstract]
Notional amount		21		25
Derivatives designated as hedging instruments | Sell GBP Buy EUR
Derivative Financial Instruments (Textual) [Abstract]
Notional amount		55		66
Derivatives designated as hedging instruments | Buy KR Sell EUR [Member]
Derivative Financial Instruments (Textual) [Abstract]
Notional amount		116		149
Derivatives designated as hedging instruments | Cross Currency Swaps
Derivative Financial Instruments (Textual) [Abstract]
Notional amount		463		446
Long-term debt | Derivatives designated as hedging instruments
Derivative Financial Instruments (Textual) [Abstract]
Net Investment Hedges		615		592
Senior Notes Due 2023, 2.250%
Derivative [Line Items]
Long-term Debt, Fair Value		666		$ 638
Senior Notes Due 2023, 2.250% | Senior Notes
Derivative Financial Instruments (Textual) [Abstract]
Interest on notes due					2.25%	2.25%
Face amount					$ 500	€ 500,000,000
Reclassification out of Accumulated Other Comprehensive Income | Foreign Exchange Contract
Derivative [Line Items]
Revenues	[1]	$ 1	$ 0
[1] Effective portion

X

- Definition

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

+ References

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

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
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Fair value as of the balance sheet date of all foreign currency derivatives designated as cash flow hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4B
-Subparagraph (a),(b),(c)(1)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624163-113959

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- Definition

The estimated net amount of unrealized gains or losses on foreign currency cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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-SubTopic 30
-Section 50
-Paragraph 1
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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
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-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
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Derivative financial instruments.

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