Stock-Based Compensation (Schedule Of Option Activity And Changes) (Details) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2022 USD ($) $ / shares shares
Options
Options, Outstanding, beginning balance | shares	1,569,656
Options, Granted | shares	219,053
Options, Exercised | shares	(249,532)
Options, Cancelled | shares	(8,107)
Options, Outstanding, ending balance | shares	1,531,070
Options, Exercisable, ending balance | shares	999,887
Weighted Average Exercise Price
Weighted Average Exercise Price, Outstanding, beginning balance (in dollars per share) | $ / shares	$ 72.43
Weighted Average Exercise Price, Granted (in dollars per share) | $ / shares	108.12
Weighted Average Exercise Price, Exercised (in dollars per share) | $ / shares	70.37
Weighted Average Exercise Price, Cancelled (in dollars per share) | $ / shares	92.59
Weighted Average Exercise Price, Outstanding, ending balance (in dollars per share) | $ / shares	77.76
Weighted Average Exercise Price, Exercisable, ending balance (in dollars per share) | $ / shares	$ 71.40
Weighted Average Remaining Term (Years) [Abstract]
Weighted Average Remaining Term (Years), Outstanding	6 years 2 months 12 days
Weighted Average Remaining Term (Years), Exercisable	5 years 1 month 6 days
Aggregate Intrinsic Value [Abstract]
Aggregate Intrinsic Value, Outstanding | $	$ 40
Aggregate Intrinsic Value, Exercisable | $	$ 32