Income Taxes (Details Textual) (USD $) In Millions, unless otherwise specified	12 Months Ended
Feb. 25, 2012	Feb. 26, 2011	Feb. 27, 2010
Income Taxes [Abstract]
Number of months within which company does not anticipate significant change in unrecognized tax benefits	12 months
State net operating loss carryforwards	$ 816
Valuation allowance	25	24
Unrecognized tax benefits that would impact effective tax rate if recognized	67	82	58
Unrecognized tax benefits expects to resolve within the next 12 months	11
Recognized (income) expense related to interest and penalties	2	10	(2)
Reclassification income taxes payable related to prior year	(12)
Unrecognized tax benefits, related to accrued interest and penalties	40	50
Payments of interest and penalties	$ 1	$ 4

Number of months within which company does not anticipate significant change in unrecognized tax benefits.

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- Definition

Payments of interest and penalties.

+ References

No definition available.

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- Definition

Reclassification income taxes payable related to prior year.

+ References

No definition available.

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- Definition

The tax effect as of the balance sheet date of the amount of excess of tax deductions over gross income in a year which cannot be used on the tax return of a state or local jurisdiction in the current year but can be carried forward to reduce taxable income or income taxes payable in a future year, for which there must be sufficient tax-basis income to utilize a portion or all of the carryforward amount to realize the deferred tax asset.

+ References

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-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

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-Number 109

-Paragraph 43

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- Definition

The sum of the portions of deferred tax assets as of the balance sheet date for which, based on the weight of available evidence, it is more likely than not will not be realized through future reductions of tax-based income.

+ References

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-Paragraph 17

-Subparagraph e

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-Paragraph 43-49

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- Definition

The sum of the amounts of estimated penalties and interest recognized in the period arising from income tax examinations.

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-Name Accounting Standards Codification

-Topic 740

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- Definition

The amount of the unrecognized tax benefit of a position taken for which it is reasonably possible that the total amount thereof will significantly increase or decrease within twelve months of the balance sheet date.

+ References

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-Publisher FASB

-Name FASB Interpretation (FIN)

-Number 48

-Paragraph 21

-Subparagraph d

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- Definition

This element represents the total of interest expense recognized for an underpayment of income taxes computed by applying the applicable statutory rate of interest to the difference between a tax position recognized for financial reporting purposes and the amount previously taken or expected to be taken in a tax return of the entity and the amount of statutory penalties in the period in which the entity claims or expects to claim a tax position, in its tax return, that does not meet the minimum statutory threshold to avoid payment of penalties.

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-Number 48

-Paragraph 21

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- Definition

The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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