Acquisition, Divestiture, Collaborative Arrangement and Equity Method Investments - Collaborative Arrangement (Details) In Millions, except Per Share data, unless otherwise specified			0 Months Ended			0 Months Ended
	Jun. 29, 2014 USD ($)	Dec. 31, 2013 USD ($)	Jun. 14, 2014 Collaborative Arrangement, Product [Member] USD ($)	Jun. 18, 2014 Collaborative Arrangement, Product [Member] USD ($)	Jun. 18, 2014 Collaborative Arrangement, Product [Member] EUR (€)	Jun. 14, 2014 Collaborative Arrangement, Product [Member] Common Stock [Member]	Aug. 07, 2014 Collaborative Arrangement, Product [Member] Subsequent Event [Member] USD ($) target
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Payments to collaborators							$ 80
Number of Collaboration Selected Targets							4
Collaborative arrangement, milestone, maximum, value			185
Investment, ownership percentage						10.00%
Share Price					€ 9.25
Long-term investments	$ 17,168	$ 16,406		$ 35