Share-Based Compensation (Details) (USD $) Share data in Thousands, unless otherwise specified	3 Months Ended
	Mar. 29, 2013		Mar. 30, 2012		Dec. 25, 2009
Share-based Compensation
Share-Based Compensation Benefit (a)	(3,000,000)	[1]	0	[1]
Income Tax Expense	1,000,000		0
Stock Options [Member]
Share-based Compensation
Number of Stock Options Exercised	1,191		1,299
Number of Stock Options Expired	0		15
Future expense related to vested options					$ 0
Number of Stock Options Outstanding	481

[1] Share-based compensation was a benefit in first quarter 2013 and was zero in first quarter 2012 driven by lower anticipated payouts on long-term incentive compensation.