Credit Facilities and Long-Term Debt (Details Textual)			9 Months Ended	12 Months Ended
	Apr. 11, 2016 USD ($)	Sep. 20, 2011 USD ($)	Sep. 30, 2016	Dec. 31, 2016 USD ($)	Oct. 28, 2016 USD ($)	Oct. 28, 2016 EUR (€)	Oct. 24, 2016 USD ($)	Oct. 24, 2016 EUR (€)	Oct. 11, 2016 USD ($)	Aug. 15, 2016 USD ($)	Mar. 11, 2016 EUR (€)	Dec. 31, 2015 USD ($)	Dec. 03, 2015 USD ($)	Dec. 03, 2015 EUR (€)	Mar. 27, 2015 USD ($)
Debt Instrument
Bridge Loan										$ 1,300,000,000
Commercial Paper, at Carrying Value				$ 65,000,000
Commercial Paper				$ 600,000,000
Debt Instrument, Interest Rate During Period				1.12%
European Investment Bank - Research and Development Finance Contract
Debt Instrument
Line of Credit, Current				$ 110,000,000
Term of debt				11 years
Basis spread on debt				0.59%
Risk Sharing Finance Facility Agreement
Debt Instrument
Line of Credit, Current				$ 38,000,000								$ 76,000,000
Letter of Credit
Debt Instrument
Debt instrument aggregate principal amount															$ 100,000,000
Revolving Credit Facility
Debt Instrument
Increase in borrowing capacity															200,000,000
Maximum increase in borrowing capacity															800,000,000
Debt instrument aggregate principal amount															$ 600,000,000
Line Of Credit Basis Off Spread On Variable Rate				1.00%
Maximum leverage ratio			4.00
Senior Notes
Debt Instrument
Redemption price percentage		101.00%
Line of Credit [Member]
Debt Instrument
Senior notes issued					$ 110,000,000	€ 105,000,000	$ 157,000,000	€ 150,000,000
3.250% Senior Notes Due 2026
Debt Instrument
Fair value of senior notes due				$ 487,000,000
Interest on notes due									3.25%
Senior notes issued									$ 500,000,000
Long-term Debt, Gross				$ 500,000,000								0
Risk Sharing Finance Facility Agreement
Debt Instrument
Senior notes issued													$ 126,000,000	€ 120,000,000
Term of debt				5 years
Risk Sharing Finance Facility Agreement | Term Loans
Debt Instrument
Term of debt				12 years
3.550% Senior Notes Due 2016
Debt Instrument
Fair value of senior notes due												607,000,000
Interest on notes due		3.55%
Senior notes issued		$ 600,000,000
Long-term Debt, Gross				$ 0								600,000,000
Extinguishment of Debt, Amount	$ 607,000,000
Extinguishment of Debt, Interest Amount				7,000,000
4.875% Senior Notes Due 2021
Debt Instrument
Interest on notes due		4.875%
Senior notes issued		$ 600,000,000
Long-term Debt, Gross				600,000,000								600,000,000
2.250% Senior Notes Due 2023
Debt Instrument
Fair value of senior notes due				555,000,000
Long-term Debt, Gross				$ 522,000,000								0
2.250% Senior Notes Due 2023 | Senior Notes
Debt Instrument
Interest on notes due											2.25%
Senior notes issued | €											€ 500,000,000
Five-Year Revolving Credit Facility
Debt Instrument
Maximum leverage ratio				3.50
4.375% Senior Notes Due 2046
Debt Instrument
Fair value of senior notes due				$ 397,000,000
Interest on notes due									4.375%
Senior notes issued									$ 400,000,000
Long-term Debt, Gross				400,000,000								0
Level 2 | 4.875% Senior Notes Due 2021
Debt Instrument
Fair value of senior notes due				$ 651,000,000								$ 640,000,000
EURIBOR
Debt Instrument
Basis spread on debt				0.35%