Fair Value Measurements and Derivatives - Notional Amount of Currency Derivatives (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	$ 1,418
Not Designated as Hedging Instrument [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	122
Cash Flow Hedging [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	1,296
Foreign Exchange Forward [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	$ 306	$ 143
Foreign Exchange Forward [Member] | United States of America, Dollars [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Traded Currency	Mexican peso
Derivative, Notional Amount	$ 109
Foreign Exchange Forward [Member] | Euro Member Countries, Euro [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Traded Currency	U.S. dollar, Canadian dollar, Hungarian forint, British pound, Swiss franc, Indian rupee, Russian ruble, Chinese renminbi
Derivative, Notional Amount	$ 51
Foreign Exchange Forward [Member] | United Kingdom, Pounds [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Traded Currency	U.S. dollar, Euro
Derivative, Notional Amount	$ 1
Foreign Exchange Forward [Member] | Swedish, Krona [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Traded Currency	Euro, U.S. dollar
Derivative, Notional Amount	$ 29
Foreign Exchange Forward [Member] | South Africa, Rand [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Traded Currency	U.S. dollar, Euro, Thai baht
Derivative, Notional Amount	$ 9
Foreign Exchange Forward [Member] | Canada, Dollars
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Traded Currency	U.S. dollar
Derivative, Notional Amount	$ 11
Foreign Exchange Forward [Member] | Thailand, Baht [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Traded Currency	U.S. dollar, Australian dollar
Derivative, Notional Amount	$ 31
Foreign Exchange Forward [Member] | Brazil, Brazil Real [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Traded Currency	U.S. dollar, Euro
Derivative, Notional Amount	$ 33
Foreign Exchange Forward [Member] | India, Rupees [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Traded Currency	U.S. dollar, British pound, Euro
Derivative, Notional Amount	$ 32
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	122
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member] | United States of America, Dollars [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member] | Euro Member Countries, Euro [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	6
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member] | United Kingdom, Pounds [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member] | Swedish, Krona [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member] | South Africa, Rand [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	9
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member] | Canada, Dollars
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	11
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member] | Thailand, Baht [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	31
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member] | Brazil, Brazil Real [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	33
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member] | India, Rupees [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	32
Foreign Exchange Forward [Member] | Cash Flow Hedging [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	184
Foreign Exchange Forward [Member] | Cash Flow Hedging [Member] | United States of America, Dollars [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	109
Foreign Exchange Forward [Member] | Cash Flow Hedging [Member] | Euro Member Countries, Euro [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	45
Foreign Exchange Forward [Member] | Cash Flow Hedging [Member] | United Kingdom, Pounds [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	1
Foreign Exchange Forward [Member] | Cash Flow Hedging [Member] | Swedish, Krona [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	29
Currency Swap [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	$ 1,112	$ 571
Currency Swap [Member] | United States of America, Dollars [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Traded Currency	Euro
Derivative, Notional Amount	$ 337
Currency Swap [Member] | Euro Member Countries, Euro [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Traded Currency	U.S. dollar
Derivative, Notional Amount	$ 775
Currency Swap [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	0
Currency Swap [Member] | Not Designated as Hedging Instrument [Member] | United States of America, Dollars [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount
Currency Swap [Member] | Not Designated as Hedging Instrument [Member] | Euro Member Countries, Euro [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount
Currency Swap [Member] | Cash Flow Hedging [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	1,112
Currency Swap [Member] | Cash Flow Hedging [Member] | United States of America, Dollars [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	337
Currency Swap [Member] | Cash Flow Hedging [Member] | Euro Member Countries, Euro [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	$ 775