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Property, Plant and Equipment - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Feb. 23, 2013	Feb. 25, 2012	Feb. 26, 2011
Property Plant And Equipment [Abstract]
Depreciation expense	$ 333	$ 321	$ 320
Amortization expense related to capitalized lease assets	$ 23	$ 26	$ 26

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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