Stock-Based Compensation Plans (Schedule Of Company's Stock Option Plans) (Details) shares in Thousands	12 Months Ended
	Dec. 31, 2019 $ / shares shares
Number of Shares (in 000’s)
Options outstanding Beginning Balance (in shares) | shares	2,410
Granted (in shares) | shares	500
Exercised (in shares) | shares	(217)
Canceled (in shares) | shares	(111)
Options outstanding Ending Balance (in shares) | shares	2,582
Options exercisable (in shares) | shares	1,417
Weighted Average Exercise Price
Options outstanding Beginning Balance (in dollars per share) | $ / shares	$ 62.84
Granted (in dollars per share) | $ / shares	79.14
Exercised (in dollars per share) | $ / shares	52.58
Canceled (in dollars per share) | $ / shares	76.91
Options outstanding Ending Balance (in dollars per share) | $ / shares	66.26
Options exercisable (in dollars per share) | $ / shares	$ 59.06
Weighted Average Remaining Life (Years), Options outstanding	6 years 7 months 13 days
Weighted Average Remaining Life (Years), Options exercisable	5 years 7 months 24 days