Long-Term Debt (Tables)

12 Months Ended

Dec. 25, 2011

Long-Term Debt [Abstract]

Schedule of Long-Term Debt Instruments

	2011		2010
	-------		------
	Carrying	Fair	Carrying	Fair
	Cost	Value	Cost	Value
	----------	---------	----------	---------
6.35% Notes Due 2040	$   500,000	540,850	500,000	499,900
6.125% Notes Due 2014	440,977	462,868	437,786	462,698
6.30% Notes Due 2017	350,000	400,400	350,000	382,830
6.60% Debentures Due 2028	109,895	120,148	109,895	110,038
	--------------	-------------	-------------	-------------
Total long-term debt	$1,400,872	1,524,266	1,397,681	1,455,466
	========	=======	=======	=======