Commitments, Contingencies and Off-Balance Sheet Arrangements (Details Textual) (USD $) In Millions, unless otherwise specified	4 Months Ended
Jun. 16, 2012 Retailer	Feb. 25, 2012
Commitments, Contingencies and Off Balance Sheet Arrangements (Textual) [Abstract]
Remaining term for guarantee for other debt obligation minimum (less than given term in years)	1 year
Remaining term for guarantee for other debt obligation maximum (in years)	18 years
Remaining term for guarantee for other debt obligation weighted average (in years)	8 years
Maximum amount of undiscounted payments under the Company's guarantee arrangements	$ 103
Guarantor Obligation, Maximum Exposure, Discounted	75
Non-cancelable future purchase obligations	$ 881	$ 650
Number of other retailers who have filed similar complaints in other jurisdictions	3

Name:	svu_CommitmentsContingenciesAndOffBalanceSheetArrangementsTextualAbstract
Namespace Prefix:	svu_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Maximum potential amount of future payments (discounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

+ References

No definition available.

+ Details

Name:	svu_GuaranteeObligationMaximumExposureDiscounted
Namespace Prefix:	svu_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Non-cancelable future purchase obligations.

+ References

No definition available.

+ Details

Name:	svu_NonCancelableFuturePurchaseObligations
Namespace Prefix:	svu_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Remaining term for guarantee for other debt obligation maximum (in years).

+ References

No definition available.

+ Details

Name:	svu_RemainingTermForGuaranteeForOtherDebtObligationMaximum
Namespace Prefix:	svu_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Remaining term for guarantee for other debt obligation minimum (less than given term in years).

+ References

No definition available.

+ Details

Name:	svu_RemainingTermForGuaranteeForOtherDebtObligationMinimum
Namespace Prefix:	svu_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Remaining term for guarantee for other debt obligation weighted average (in years).

+ References

No definition available.

+ Details

Name:	svu_RemainingTermForGuaranteeForOtherDebtObligationWeightedAverage
Namespace Prefix:	svu_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

+ References

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

-Publisher FASB

-Name FASB Interpretation (FIN)

-Number 45

-Paragraph 13

-Subparagraph b

-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 460

-SubTopic 10

-Section 50

-Paragraph 4

-Subparagraph (b)(1)

-URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248

+ Details

Name:	us-gaap_GuaranteeObligationsMaximumExposure
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Number of plaintiffs that have filed claims pertaining to a loss contingency.

+ References

No definition available.

+ Details

Name:	us-gaap_LossContingencyNumberOfPlaintiffs
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration