Shareholders' Equity (Summary Of Share-Based Incentive Plan Grant Activity For Options and SAR's) (Details) - Options and SAR's $ / shares in Units, $ in Millions	9 Months Ended
	Oct. 03, 2015 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding (in shares)	1,488,832
Granted (in shares)	206,500
Exercised (in shares)	(121,208)
Forfeited (in shares)	(17,500)
Outstanding (in shares)	1,556,624
Exercisable (in shares)	958,541
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Outstanding, weighted average exercise price (in dollars per share) | $ / shares	$ 59.34
Granted, weighted average exercise price (in dollars per share) | $ / shares	78.15
Exercised, weighted average exercise price (in dollars per share) | $ / shares	43.82
Forfeited, weighted average exercise price (in dollars per share) | $ / shares	66.53
Outstanding, weighted average exercise price (in dollars per share) | $ / shares	62.95
Exercisable, weighted average exercise price (in dollars per share) | $ / shares	$ 57.05
Outstanding, weighted average remaining contractual term (in years)	5 years 11 months
Exercisable, weighted average remaining contractual term (in years)	4 years 6 months 12 days
Outstanding, aggregate intrinsic value | $	$ 5.4
Exercisable, aggregate intrinsic value | $	$ 5.4