Stock-Based Compensation (Summary Of Weighted-Average Assumptions Of Fair Value Granted Using Black-Scholes Valuation Model) (Details)	3 Months Ended
	Mar. 31, 2012 Y	Apr. 02, 2011 Y
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term (in years)	5.37	5.89
Expected volatility factor	36.92%	34.18%
Expected dividend yield	2.72%	2.72%
Risk-free interest rate	0.82%	2.33%
Performance Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term (in years)	3.0	3.0
Expected volatility factor	34.42%	40.41%
Risk-free interest rate	0.35%	1.34%
Stock Appreciation Rights [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term (in years)	5.16	5.54
Expected volatility factor	37.54%	34.99%
Expected dividend yield	2.72%	2.72%
Risk-free interest rate	1.04%	2.24%