Assets Used For Collateral

No definition available.

Name:	svu_AssetsUsedForCollateral
Namespace Prefix:	svu_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Debt Instrument Expiration Year

+ References

No definition available.

+ Details

Name:	svu_DebtInstrumentExpirationYear
Namespace Prefix:	svu_
Data Type:	us-types:durationStringItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt Instrument Maturity Date 1

+ References

No definition available.

+ Details

Name:	svu_DebtInstrumentMaturityDate1
Namespace Prefix:	svu_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Facility fee in accordance of current credit rating.

+ References

No definition available.

+ Details

Name:	svu_FacilityFeeInAccordanceOfCurrentCreditRating
Namespace Prefix:	svu_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Facility fees under the extended portions.

+ References

No definition available.

+ Details

Name:	svu_FacilityFeesUnderExtendedPortions
Namespace Prefix:	svu_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Interest rate addition to base rate.

+ References

No definition available.

+ Details

Name:	svu_InterestRateAdditionToBaseRate
Namespace Prefix:	svu_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Invested Assets Pledged As Collateral

+ References

No definition available.

+ Details

Name:	svu_InvestedAssetsPledgedAsCollateral
Namespace Prefix:	svu_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Letter Of Credit Facility Outstanding

+ References

No definition available.

+ Details

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

- Definition

Letter of credit fee.

+ References

No definition available.

+ Details

Name:	svu_LetterOfCreditFee
Namespace Prefix:	svu_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

LIBOR floor rate.

+ References

No definition available.

+ Details

Name:	svu_LiborFloorRate
Namespace Prefix:	svu_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Line Of Credit Facility Fee

+ References

No definition available.

+ Details

Name:	svu_LineOfCreditFacilityFee
Namespace Prefix:	svu_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Line Of Credit Facility Prepayment Fee Percentage

+ References

No definition available.

+ Details

Name:	svu_LineOfCreditFacilityPrepaymentFeePercentage
Namespace Prefix:	svu_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Net Cash Proceeds From Sale Of Assets Percentage

+ References

No definition available.

+ Details

Name:	svu_NetCashProceedsFromSaleOfAssetsPercentage
Namespace Prefix:	svu_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Payment Of Financing Costs

+ References

No definition available.

+ Details

Name:	svu_PaymentOfFinancingCosts
Namespace Prefix:	svu_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Prime Rate Plus

+ References

No definition available.

+ Details

Name:	svu_PrimeRatePlus
Namespace Prefix:	svu_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Term of credit facilities.

+ References

No definition available.

+ Details

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

- Definition

The stated principal amount of the debt instrument at time of issuance, which may vary from the carrying amount because of unamortized premium or discount.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400

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

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 21

-Paragraph 16, 20

-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.

+ Details

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

- Definition

Interest rate stated in the contractual debt agreement.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-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 210.5-02.22(a)(1))

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

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount borrowed under the credit facility as of the balance sheet date.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

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

- Definition

The effective interest rate at the end of the reporting period.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 129

-Paragraph 2, 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.

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 210.5-02.19(b),22(b))

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

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

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

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

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

- Definition

The carrying value as of the balance sheet date of the current portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.20)

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

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 20

-Article 5

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Line-of-Credit Arrangement

-URI http://asc.fasb.org/extlink&oid=6517033

+ Details

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

- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19,20)

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

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 20

-Article 5

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19

-Article 5

+ Details

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

- Definition

The fair value, as of the date of each statement of financial position presented, of finance receivables which are owned but transferred to serve as collateral for the payment of the related debt obligation, and that are reclassified and separately reported in the statement of financial position.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 860

-SubTopic 30

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6467456&loc=d3e113888-111728

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 140

-Paragraph 15

-Subparagraph a

-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.

+ Details

Name:	us-gaap_PledgedAssetsSeparatelyReportedFinanceReceivablesPledgedAsCollateralAtFairValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Long Term Debt - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	1 Months Ended	12 Months Ended		1 Months Ended		1 Months Ended					12 Months Ended				1 Months Ended		12 Months Ended	1 Months Ended
	Aug. 30, 2012	Feb. 23, 2013	Feb. 25, 2012	Aug. 30, 2012 Term Loan A [Member]	Feb. 23, 2013 Term Loan A [Member]	Aug. 30, 2012 Revolving Credit Facility [Member]	Aug. 30, 2012 Term Loan B-2 [Member]	Aug. 30, 2012 Term Loan B-3 [Member]	Aug. 30, 2012 Revolving ABL Credit Facility [Member]	Feb. 23, 2013 Revolving ABL Credit Facility [Member]	Feb. 24, 2007 Seven Point Five Percentage Senior Unsecured Notes Due Two Thousand Fourteen [Member]	Feb. 27, 2010 Eight Percentage Senior Unsecured Notes Due Two Thousand Sixteen [Member]	Feb. 23, 2013 Minimum [Member]	Feb. 23, 2013 Minimum [Member] Term Loan A [Member]	Aug. 30, 2012 Minimum [Member] Revolving ABL Credit Facility [Member]	Feb. 23, 2013 Minimum [Member] Revolving ABL Credit Facility [Member]	Feb. 23, 2013 Maximum [Member]	Aug. 30, 2012 Maximum [Member] Revolving ABL Credit Facility [Member]	Feb. 23, 2013 Maximum [Member] Revolving ABL Credit Facility [Member]
Debt Instrument [Line Items]
Term of credit facility				6 years					5 years
Line of credit facility amount		$ 200							$ 1,650
Interest rate at the rate of ("LIBOR")				6.75%	6.75%										1.75%	1.00%		2.25%	2.00%
Facility fees															0.25%			0.375%
Interest rate at the rate of ("Prime plus")															0.75%			1.25%
Line of credit facility amount outstanding	280	40		850	834	1,500	574	446		207
LIBOR floor rate				1.25%	1.25%
Maturity date						April 2015	October 2015	April 2018
Payment of financing costs	59
Ground-leased real estate and associated equipment pledged as collateral		1,069
Line of credit facility prepayment fee percentage		1.00%												50.00%
Net cash proceeds from sale of assets													50.00%				100.00%
Line of credit facility amount outstanding, current					9
Facility fees										0.25%
Letter of credit outstanding										360
Maximum letter of credit fee										2.125%
Unused credit										857
Assets collateralized by the ABL Credit Facility										2,092
Rate of outstanding borrowings		1.98%
Facility fee in accordance of current credit rating		0.70%
Account receivable pledged as collateral		282
Debt with current maturities that are classified in Long-term debt		18	28
Debt instrument, issued amount											$ 500	$ 1,000
Debt instrument, interest rate											7.50%	8.00%
Debt instrument, expiration year											2014	2016