Stock-Based Compensation Plans (Schedule Of Company's Stock Option Plans) (Details) shares in Thousands	12 Months Ended
	Dec. 31, 2015 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Number of Shares, Options outstanding Beginning Balance | shares	2,426
Number of Shares, Granted | shares	749
Number of Shares, Exercised | shares	(356)
Number of Shares, Canceled | shares	(149)
Number of Shares, Options outstanding Ending Balance | shares	2,670
Number of Shares, Options exercisable Ending Balance | shares	1,123
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Weighted Average Exercise Price, Options outstanding Beginning Balance | $ / shares	$ 50.52
Weighted Average Exercise Price, Granted | $ / shares	58.19
Weighted Average Exercise Price, Exercised | $ / shares	40.25
Weighted Average Exercise Price, Canceled | $ / shares	52.58
Weighted Average Exercise Price, Options outstanding Ending Balance | $ / shares	53.69
Weighted Average Exercise Price, Options exercisable Ending Balance | $ / shares	$ 48.94
Weighted Average Remaining Life (Years), Options outstanding	5 years 1 month 24 days
Weighted Average Remaining Life (Years), Options exercisable	2 years 8 months 16 days