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	3 Months Ended
	Apr. 02, 2016 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding (in shares) | shares	1,548,266
Granted (in shares) | shares	0
Exercised (in shares) | shares	(14,506)
Forfeited (in shares) | shares	(1,933)
Expired (in shares) | shares	(700)
Outstanding (in shares) | shares	1,531,127
Exercisable (in shares) | shares	938,291
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	$ 63.09
Granted, weighted average exercise price (in dollars per share) | $ / shares	0.00
Exercised, weighted average exercise price (in dollars per share) | $ / shares	46.67
Forfeited, weighted average exercise price (in dollars per share) | $ / shares	75.75
Expired, weighted average exercise price (in dollars per share) | $ / shares	71.51
Outstanding, weighted average exercise price (in dollars per share) | $ / shares	63.23
Exercisable, weighted average exercise price (in dollars per share) | $ / shares	$ 57.38
Outstanding, weighted average remaining contractual term (in years)	5 years 6 months
Exercisable, weighted average remaining contractual term (in years)	4 years 1 month 6 days
Outstanding, aggregate intrinsic value | $	$ 7.7
Exercisable, aggregate intrinsic value | $	$ 7.6