Other Income, Net - (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Other Income and Expenses [Abstract]
Interest income	$ 4	$ 3	$ 7	$ 6
Government grants and incentives		1	1	2
Foreign exchange gain (loss)	$ (6)	$ 14	(6)	2
Strategic transaction expenses	$ (1)		(2)	$ (1)
Gain on derecognition of noncontrolling interest			5
Gain on sale of marketable securities			$ 1
Recognition of unrealized gain on payment-in-kind note receivable				$ 2
Insurance recoveries	$ 3		$ 4
Other	4	$ 3	6	$ 4
Other income, net	$ 4	$ 21	$ 16	$ 15