Stock Based Compensation (Stock Options - Outstanding and Exercisable) (Detail) (USD $) In Millions, except Share data, unless otherwise specified					12 Months Ended
	Dec. 28, 2012	Dec. 30, 2011	Dec. 31, 2010	Jan. 01, 2010	Dec. 28, 2012 Range 1 [Member]	Dec. 28, 2012 Range 2 [Member]	Dec. 28, 2012 Range 3 [Member]	Dec. 28, 2012 Range 4 [Member]	Dec. 28, 2012 Range 6 [Member]	Dec. 28, 2012 Range 7 [Member]	Dec. 28, 2012 Range 8 [Member]	Dec. 28, 2012 Range 9 [Member]	Dec. 28, 2012 Range 10 [Member]	Dec. 28, 2012 Range 11 [Member]	Dec. 28, 2012 Range 12 [Member]	Dec. 28, 2012 Range 13 [Member]	Dec. 28, 2012 Range 14 [Member]	Dec. 28, 2012 Range 15 [Member]	Dec. 28, 2012 Range 16 [Member]	Dec. 28, 2012 Range 17 [Member]	Dec. 28, 2012 Range 18 [Member]	Dec. 28, 2012 Range 19 [Member]	Dec. 28, 2012 Range 20 [Member] [Member]	Dec. 28, 2012 Range 21 [Member]	Dec. 28, 2012 Range 22 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price	$ 24.12	$ 23.90	$ 22.82	$ 22.76	$ 14.77	$ 15.78	$ 17.35	$ 18.31	$ 19.76	$ 19.83	$ 19.83	$ 20.13	$ 21.72	$ 22.25	$ 23.76	$ 23.82	$ 23.97	$ 26.67	$ 29.84	$ 30.59	$ 32.28	$ 33.97	$ 33.97	$ 22.46	$ 24.29
Remaining Contractual Life					6 years 3 months 4 days	3 years 6 months 30 days	4 years 2 months 0 days	3 years 4 months 20 days	3 years 2 months 16 days	6 years 2 months 12 days	6 years 2 months 12 days	7 years 2 months 12 days	6 years 7 months 30 days	5 years 7 months 30 days	8 years 7 months 30 days	1 year 4 months 18 days	4 years 4 months 18 days	8 years 2 months 12 days	2 years 4 months 18 days	4 years 11 months 24 days	2 years 2 months 6 days	5 years 2 months 12 days	5 years 2 months 12 days	9 years 2 months 30 days	9 years 7 months 30 days
Outstanding	5,195,134	4,737,052	4,882,901	4,944,373	30,000	83,433	6,250	6,000	6,250	64,400	18,750	161,000	861,000	921,500	848,000	32,200	128,800	161,000	635,051	24,000	25,000	161,000	37,500	161,000	823,000
Outstanding Intrinsic Value	$ 13.7				$ 0.3	$ 0.8	$ 0.1	$ 0	$ 0	$ 0.4	$ 0.1	$ 0.9	$ 3.6	$ 3.4	$ 1.8	$ 0	$ 0.3	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0.6	$ 1.3
Exercisable	3,460,134	2,908,052	3,199,901		24,000	83,433	6,250	6,000	6,250	32,200	18,750	96,600	633,000	921,500	329,000	32,200	128,800	64,400	635,051	24,000	25,000	161,000	37,500	32,200	163,000
Exercisable Intrinsic Value	$ 9.7				$ 0.3	$ 0.8	$ 0.1	$ 0	$ 0	$ 0.2	$ 0.1	$ 0.6	$ 2.7	$ 3.4	$ 0.7	$ 0	$ 0.3	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0.1	$ 0.3