CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Feb. 22, 2014	Feb. 23, 2013	Feb. 25, 2012
Statement Of Income And Comprehensive Income [Abstract]
Net earnings (loss)	$ 182	$ (1,466)	$ (1,040)
Other comprehensive income (loss):
Recognition of pension and other postretirement benefits income (loss), net of tax (expense) benefit of $(123), $(22) and $129, respectively	257	45	(211)
Comprehensive income (loss)	$ 439	$ (1,421)	$ (1,251)