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Stock Based Awards (Details 4) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Feb. 25, 2012	Feb. 26, 2011	Feb. 27, 2010
Pre Tax Stock Based Expense and Related Tax Benefits [Abstract]
Allocated Share-based Compensation Expense	$ 13	$ 15	$ 31
Income tax benefits	(5)	(6)	(12)
Stock-based compensation (net of tax)	$ 8	$ 9	$ 19

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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