Valuation and Qualifying Accounts (Details) (Allowance for losses on receivables [Member], USD $) In Millions, unless otherwise specified	12 Months Ended
Feb. 25, 2012	Feb. 26, 2011	Feb. 27, 2010
Allowance for losses on receivables [Member]
Valuation and Qualifying Accounts
Balance at Beginning of Fiscal Year	$ 8	$ 12	$ 15
Additions	7	12	6
Deductions	(7)	(16)	(9)
Balance at End of Fiscal Year	$ 8	$ 8	$ 12

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Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 09

-Article 12

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e24092-122690

+ Details

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- Definition

+ References

+ Details

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- Definition

Total of the deductions in a given period to allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, representing receivables written off as uncollectible and portions of the reserves utilized, respectively.

+ References

+ Details

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