Risks And Uncertainties (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013 segment customer	Dec. 31, 2012 customer	Dec. 31, 2011 customer	Dec. 31, 2010
Risks and Uncertainties [Abstract]
Number of strategic business units	6
Cash and cash equivalents	$ 1,642	$ 1,900	$ 1,624	$ 2,360
Percent of revenue generated outside US	77.00%
Percent Of Revenue From Discontinued Operations Generated Outside US	97.00%
Number of customers that accounted for 10% of more of total revenue	0	0	0