Income Taxes (Total Income Taxes) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 25, 2010	Dec. 26, 2009
Income Taxes [Line Items]
Income tax expense	$ 769,807	$ 701,271	$ 613,272
Earnings [Member]
Income Taxes [Line Items]
Income tax expense	769,807	701,271	613,272
Other Comprehensive (Losses) Earnings [Member]
Income Taxes [Line Items]
Income tax expense	(5,015)	(3,135)	35,159
Total [Member]
Income Taxes [Line Items]
Income tax expense	$ 764,792	$ 698,136	$ 648,431