Restructuring and Other Charges (Rollforward Of Severance And Other Costs Tables) (Details) (Employee Severance And Other Cost [Member], USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Two Thousand And Thirteen Organizational Restructuring Charges [Member]
Restructuring Reserve by Type of Cost [Line Items]
Additions and adjustments	$ 63
Cash charges	(21)
Ending balance	42
Two Thousand And Twelve Organizational Restructuring Charges [Member]
Restructuring Reserve by Type of Cost [Line Items]
Additions and adjustments		31
Cash charges	(6)	(15)
Ending balance	10
Two Thousand And Eleven Organizational Restructuring Charges [Member]
Restructuring Reserve by Type of Cost [Line Items]
Additions and adjustments			25
Cash charges	(1)	(8)	(16)
Ending balance	$ 0