Share-Based Compensation and Benefit Plans (Summary Of Stock Options) (Details) (USD $) Share data in Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Employee Stock Option [Member]
Outstanding at December 31, 2012 shares	6,721
Outstanding at December 31, 2012 weighted-average exercise price	$ 51.03
Granted, shares	363
Granted, weighted-average exercise price	$ 105.11
Exercised, shares	(1,375)
Exercised, weighted-average exercise price	$ 43.09
Forfeited, shares	(532)
Forfeited, weighted-average exercise price	$ 76.77
Outstanding at December 31, 2013 shares	5,177
Outstanding at December 31, 2013 weighted-average exercise price	$ 54.28
Outstanding at December 31, 2013, average remaining contractual term	6 years 1 month 13 days
Outstanding at December 31, 2013, aggregate intrinsic value	$ 385,330
Vested or expected to vest at December 31, 2013, shares	4,909
Vested or expected to vest at December 31, 2013, weighted-average exercise price	$ 52.87
Vested or expected to vest at December 31, 2013, average remaining contractual term	6 years 0 months 12 days
Vested or expected to vest at December 31, 2013, aggregate intrinsic value	372,291
Exercisable at December 31, 2013, shares	3,169
Exercisable at December 31, 2013, weighted-average exercise price	$ 36.92
Exercisable at December 31, 2013, average remaining contractual term	4 years 9 months 26 days
Exercisable at December 31, 2013, aggregate intrinsic value	290,911
Stock Option [Member]
Exercisable at December 31, 2013, average remaining contractual term	4 years 9 months 9 days	5 years 1 month 16 days	5 years 1 month 13 days
Director [Member]
Outstanding at December 31, 2012 shares	68
Outstanding at December 31, 2012 weighted-average exercise price	$ 35.03
Granted, shares	0
Granted, weighted-average exercise price	$ 0.00
Exercised, shares	(18)
Exercised, weighted-average exercise price	$ 28.54
Forfeited, shares	0
Forfeited, weighted-average exercise price	$ 0.00
Outstanding at December 31, 2013 shares	50
Outstanding at December 31, 2013 weighted-average exercise price	$ 37.37
Outstanding at December 31, 2013, average remaining contractual term	2 years 6 months 0 days
Outstanding at December 31, 2013, aggregate intrinsic value	4,567,000
Vested or expected to vest at December 31, 2013, shares	50
Vested or expected to vest at December 31, 2013, weighted-average exercise price	$ 37.37
Vested or expected to vest at December 31, 2013, average remaining contractual term	2 years 6 months 0 days
Vested or expected to vest at December 31, 2013, aggregate intrinsic value	4,567,000
Exercisable at December 31, 2013, shares	50
Exercisable at December 31, 2013, weighted-average exercise price	$ 37.37
Exercisable at December 31, 2013, average remaining contractual term	2 years 6 months 0 days
Exercisable at December 31, 2013, aggregate intrinsic value	$ 4,567,000