Stock-Based Compensation (Schedule Of Stock Options) (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Jan. 02, 2016	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Options Outstanding, beginning of period	2,486,282	2,623,888	2,942,647
Options Outstanding, Granted	384,453	418,272	442,493
Options Outstanding, Exercised	(496,828)	(428,285)	(601,672)
Options Outstanding, Expired/forfeited	(56,114)	(127,593)	(159,580)
Options Outstanding, end of period	2,317,793	2,486,282	2,623,888	2,942,647
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Outstanding Weighted Average Exercise Price, beginning of period (in dollars per share)	$ 17.33	$ 15.98	$ 14.80
Outstanding Weighted Average Exercise Price, Granted (in dollars per share)	31.02	26.66	25.61
Outstanding Weighted Average Exercise Price, Exercised (in dollars per share)	15.82	15.91	16.27
Outstanding Weighted Average Exercise Price, Expired/forfeited (in dollars per share)	28.36	24.91	19.85
Outstanding Weighted Average Exercise Price, end of period (in dollars per share)	$ 19.66	$ 17.33	$ 15.98	$ 14.80
Weighted average contractual term (in years), Options Outstanding	6 years 5 months	6 years 11 months	7 years 5 months	7 years
Aggregate intrinsic value (in millions), Options Outstanding	$ 33.9	$ 31.4	$ 33.8	$ 26.1
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Exercisable Options, Weighted Average Exercise Price	$ 15.38	$ 14.12	$ 11.40
Options Exercisable	1,283,284	1,384,435	1,244,741
Options Exercisable, Weighted average contractual term (in years)	5 years 7 months	6 years 1 month	6 years 7 months
Options Exercisable, Aggregate intrinsic value (in millions)	$ 24.3	$ 21.9	$ 21.7