Stock-Based Compensation (Valuation Assumptions) (Details) (USD $)	0 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended
	May 07, 2013 Market-based Restricted Stock Units [Domain]	Jul. 31, 2012 Market-based Restricted Stock Units [Domain]	Jun. 28, 2013 Employee Stock [Member] Rate	Jun. 29, 2012 Employee Stock [Member] Rate	Jun. 28, 2013 Employee Stock [Member] Rate	Jun. 29, 2012 Employee Stock [Member] Rate	Jun. 28, 2013 Restricted Stock Units (RSUs) [Member]	Jun. 29, 2012 Restricted Stock Units (RSUs) [Member]	Jun. 28, 2013 Restricted Stock Units (RSUs) [Member]	Jun. 29, 2012 Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term (in years)			1 year 0 months 0 days	1 year 0 months 0 days	1 year 0 months 0 days	1 year 0 months 0 days
Expected stock price volatility			31.20%	39.10%	31.20%	39.10%
Risk-free interest rate			0.10%	0.20%	0.10%	0.20%	0.30%	0.30%	0.30%	0.30%
Dividend yield			1.30%	0.90%	1.30%	0.90%	1.20%	0.90%	1.20%	0.90%
Grants	262,647	66,489
Grants	$ 33.03	$ 41.18
Weighted-average estimated fair value			$ 8.41	$ 10.54	$ 8.41	$ 10.54	$ 32.10	$ 32.52	$ 32.13	$ 33.13