Other Income Other Income (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended			3 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2011 Segment, International [Member]	Dec. 31, 2011 Segment, International [Member]
Component of Other Income, Nonoperating [Line Items]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, before Tax				$ 72	$ 60
Gains (Losses) on Extinguishment of Debt	(1)	(14)	(66)
Derivative, Gain (Loss) on Derivative, Net	(148)	(352)	33
Foreign Currency Transaction Gain (Loss), Realized	82	236	(11)
Investment Income, Net	50	85	98
Insurance Fee Income	61	65	83
Other Nonoperating Income (Expense)	214	266	165
Other Income Loss Net	$ 258	$ 286	$ 302