Summary of Significant Accounting Policies (Details Textual) (USD $) In Millions, unless otherwise specified	4 Months Ended		4 Months Ended
Jun. 16, 2012	Feb. 25, 2012	Jun. 16, 2012 Options and Restricted Stock [Member]	Jun. 18, 2011 Options and Restricted Stock [Member]
Significant Accounting Policies [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share			17	21
Summary of Significant Accounting Policies (Textual) [Abstract]
Net book overdrafts	$ 249	$ 268
Number of weeks in first quarter	16 weeks
Number of weeks in second, third and fourth quarter	12 weeks
Percentage of inventory valued under LIFO	80.00%	78.00%
Percentage of LIFO inventory valued under replacement cost method	42.00%	42.00%
Percentage of LIFO inventory valued under retail inventory method and weighted average	38.00%	36.00%
Percentage of FIFO inventory valued under cost, weighted average cost and retail inventory method	16.00%	18.00%
Percentage of FIFO inventory valued under replacement cost method	4.00%	4.00%

Number of weeks in first quarter.

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Number of weeks in second, third and fourth quarter.

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- Definition

Percentage of FIFO inventory valued under cost, weighted average cost and retail inventory method.

+ References

No definition available.

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- Definition

Percentage of FIFO inventory valued under replacement cost method.

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- Definition

Percentage of LIFO inventory valued under replacement cost method.

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- Definition

Percentage of LIFO inventory valued under retail inventory method and weighted average.

+ References

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- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References

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

-Publisher FASB

-Name Emerging Issues Task Force (EITF)

-Number 07-4

-Paragraph 4

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Diluted Earnings Per Share

-URI http://asc.fasb.org/extlink&oid=6510752

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Contingent Stock Agreement

-URI http://asc.fasb.org/extlink&oid=6508534

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Antidilution

-URI http://asc.fasb.org/extlink&oid=6505113

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 128

-Paragraph 171

-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 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 128

-Paragraph 40

-Subparagraph c

-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.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 260

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (c)

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-Name Statement of Financial Accounting Standard (FAS)

-Number 128

-Paragraph 13, 14

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Carrying value as of the balance sheet date of payments made in excess of existing cash balances, which will be honored by the bank but reflected as a loan to the entity. Overdrafts generally have a very short time frame for correction or repayment and are therefore more similar to short-term bank financing than trade financing.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 470

-SubTopic 10

-Section 45

-Paragraph 10

-URI http://asc.fasb.org/extlink&oid=6743817&loc=d3e1243-112600

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Current Liabilities

-URI http://asc.fasb.org/extlink&oid=6509677

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-Publisher AICPA

-Name Accounting Research Bulletin (ARB)

-Number 43

-Section A

-Paragraph 7

-Chapter 3

-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.

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-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.20)

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- Definition

The percentage of LIFO (last in first out) inventory to total inventory as of the balance sheet date if other than 100 percent.

+ References

No definition available.

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