Share-Based Compensation Plans And Other Incentive Plans (Schedule Of Stock Option Activity) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Share-Based Compensation Plans And Other Incentive Plans [Abstract]
Options outstanding, beginning balance	19,614	23,061	32,592
Options granted	3,155	1,630	8,939
Options exercised	(4,475)	(1,559)	(206)
Adjustments to options outstanding to reflect Mobility spin-off	7,756	0	0
Options terminated, cancelled or expired	(10,321)	(3,518)	(18,264)
Options outstanding, ending balance	15,729	19,614	23,061
Options exercisable at December 31	11,184	12,429	11,037
Approx. number of employees granted options	270	529	22,095
Exercise price of options outstanding, beginning balance	$ 81	$ 84	$ 120
Exercise price of options granted	$ 39	$ 50	$ 45
Exercise price of options exercised	$ 27	$ 42	$ 42
Exercise price of adjustments to options outstanding to reflect Mobility spin off	$ 39	$ 0	$ 0
Exercise price of options terminated, canceled or expired	$ 59	$ 104	$ 128
Exercise price of options outstanding, ending balance	$ 63	$ 81	$ 84
Exercise price of options exercisable at December 31	$ 74	$ 99	$ 121