Other Income Other Income (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Component of Other Income, Nonoperating [Line Items]
Derivative, Gain (Loss) on Derivative, Net	$ (23)	$ 209
Foreign Currency Transaction Gain (Loss), Realized	7	(208)
Investment Income, Net	14	15
Insurance Fee Income	26	16
Other Nonoperating Income (Expense)	27	45
Other Income Loss Net	$ 51	$ 77