Schedule of Other Income (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Other (Expense) Income
Equity earnings	$ 5	$ 2
(Loss) gain on investments	(1)	1
Foreign currency remeasurement gain	19	24
Derivative loss	(23)	(18)
Other	1	0
Other Income	$ 1	$ 9