Benefit Plans (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Mar. 03, 2012	Feb. 26, 2011	Feb. 27, 2010
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Maximum percentage of a participant's elligible compensation that a participant may contribute annually to the plan (as a percent)	50.00%
Percentage of participating employees contribution, matched 100% (as a percent)	3.00%
Percentage of participating employees contribution, matched 50% (as a percent)	2.00%
Percentage of matching contribution made by company, of first 3% of participating employees contributions (as a percent)	100.00%
Percentage of matching contribution made by company, of next 2% of participating employees' contributions (as a percent)	50.00%
Employer contribution	$ 69	$ 69	$ 62
Non-qualified, unfunded deferred compensation plan [Member]
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Deferred compensation liability	62	64
Deferred compensation plan assets	$ 83	$ 83

Percentage of employer matching contribution of the first 3% of participating employees' contribution.

No definition available.

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- Definition

Percentage of employer matching contribution of the next 2% of participating employees' contribution.

+ References

No definition available.

+ Details

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- Definition

Percentage of participating employee's contribution, 50% matched by employer.

+ References

No definition available.

+ Details

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- Definition

Percentage of participating employee's contribution, 100% matched by employer.

+ References

No definition available.

+ Details

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- Definition

The maximum percentage of the participant's eligible compensation that the participant may contribute annually to retirement savings plans.

+ References

No definition available.

+ Details

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- Details

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- Definition

Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements payable beyond one year (or the operating cycle, if longer).

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Carrying amount as of the balance sheet date of assets held under deferred compensation agreements.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 17

-Article 5

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.17)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Period Type:	instant

- Definition

The amount of the cost recognized during the period for defined contribution plans.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 11

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 70

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6414718&loc=d3e28014-114942

+ Details

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Balance Type:	debit
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