Stock Compensation (Summary Of Option Activity During The Period) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013
Equity [Abstract]
Shares under option at beginning of period	15,853
Shares under option, Granted	363
Shares under option, Exercised	(2,713)
Shares under option, Forfeited or expired	(199)
Shares under option at end of period	13,304
Shares under option, Exercisable	8,610
Weighted-average exercise price of Shares under option at beginning of period (in dollars per share)	$ 27.99
Weighted-average exercise price of Shares under option, Granted (in dollars per share)	$ 33.90
Weighted-average exercise price of Shares under option, Exercised (in dollars per share)	$ 26.98
Weighted-average exercise price of Shares under option, Forfeited or expired (in dollars per share)	$ 31.28
Weighted-average exercise price of Shares under option at end of period (in dollars per share)	$ 28.31
Weighted-average exercise price of Shares under option, Exercisable (in dollars per share)	$ 28.72