Shareholders' Equity Shareholders' Equity (Schedule Of Share-Based Incentive Plan Grant Activity) (Details) - Options and SAR's [Member] - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Jan. 02, 2016	Jan. 03, 2015
Share-based incentive plan grant activity
Options Shares Outstanding, Beginning Balance	1,488,832
Option Shares, Granted	206,500
Options Shares, Exercised	(129,366)
Option Shares, Forfeited	(14,925)
Option Shares, Expired	(2,775)
Options Shares Outstanding, Ending Balance	1,548,266	1,488,832
Options Shares, Exercisable at January 3, 2015	953,347
Options Weighted Average Exercise Price. Beginning Balance	$ 59.34
Options Weighted Average Exercise Price, Granted	78.15
Options Weighted Average Exercise Price, Exercised	43.32
Options Weighted Average Exercise Price, Forfeited	66.61
Options Weighted Average Exercise Price, Expired	71.30
Options Weighted Average Exercise Price, Ending Balance	63.09	$ 59.34
Options Weighted Average Exercise Price at End of Period	$ 57.22
Options Outstanding Weighted Average Remaining Contractual Terms (years)		5 years 8 months 15 days
Options Exercisable Weighted Average Remaining Contractual Term (years)	4 years 3 months 28 days
Options Outstanding Aggregate Intrinsic Value	$ 5.7
Options Exercisable Aggregate Intrinsic Value	$ 5.7