Condensed Consolidated Statements of Comprehensive Income (USD $) In Millions, unless otherwise specified	4 Months Ended
	Jun. 15, 2013	Jun. 16, 2012
Statement Of Income And Comprehensive Income [Abstract]
Net earnings	$ 85	$ 41
Other comprehensive income:
Amortization of actuarial loss on pension and other postretirement benefit obligations, net of tax of $11 and $13, respectively	18	21
Comprehensive income	$ 103	$ 62