Fair Value Measurements (Details Textual) (USD $) In Millions, unless otherwise specified	12 Months Ended
Mar. 03, 2012	Feb. 26, 2011
Schedule of Available-for-sale Securities [Line Items]
Other investments	$ 0
Fair Value Measurements (Textual) [Abstract]
Number of primary vendors	2
Investments that are communicated to the third party for consideration of reasonableness, threshold limit for fair value	0.50%
Auction Rate Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Impairment of investments	0	6
Lehman Brothers International (Europe) Trust Assets [Member]
Schedule of Available-for-sale Securities [Line Items]
Impairment of investments	0	11
Other investments	$ 25	$ 25

The amount by which the fair value of an investment is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income.

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+ Details