Fair Value Measurements (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Feb. 25, 2012	Feb. 26, 2011
Fair Value Measurements (Textual) [Abstract]
Asset impairment charge	$ 8
Amount of long-lived assets	35
Fair value of long-lived assets	27
Difference between fair value and book value of long term debt	171	189
Difference between fair value and book value of notes receivable		$ 3

The charge against earnings resulting from the aggregate write down of all assets from their carrying value to their fair value.

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Long-lived assets that are held for sale apart from normal operations and anticipated to be sold in less than one year.

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