CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE EARNINGS (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 25, 2011	Jun. 30, 2012	Jun. 25, 2011
Net earnings	$ 381,631	$ 382,369	$ 791,042	$ 780,536
Other comprehensive (losses) earnings:
Unrealized gain (loss) on AFS securities, net of tax effect	(12,519)	11,812	8,247	21,792
Reclassification adjustment for net realized gain on AFS securities, net of tax effect	(2,555)	(7,687)	(2,701)	(12,616)
Adjustment to postretirement benefit plan obligation, net of tax effect	478	164	956	329
Comprehensive earnings	$ 367,035	$ 386,658	$ 797,544	$ 790,041