Schedule of Other Income (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Other (Expense) Income
Equity earnings	$ 1	$ 4	$ 6	$ 6
Loss on investments	(1)	(2)	(2)	(1)
Foreign currency remeasurement (loss) gain	(15)	(5)	4	19
Derivative gain (loss)	10	9	(13)	(9)
Other	3	0	4	0
Other Income	$ (2)	$ 6	$ (1)	$ 15