Contractually required future minimum rentals on non-cancelable subleasing arrangements.

No definition available.

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- Details

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Period Type:	duration

- Definition

The total of future contractually required rental payments on leases meeting the criteria for capitalization classified as lease-financed transactions.

+ References

No definition available.

+ Details

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Namespace Prefix:	kr_
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- Definition

Contractually required rental payments on leases meeting the criteria for capitalization classified as lease financed transactions due in the year following the balance sheet date.

+ References

No definition available.

+ Details

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- Definition

Contractually required rental payments on leases meeting the criteria for capitalization classified as lease financed transactions due within the fifth year following the balance sheet date.

+ References

No definition available.

+ Details

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- Definition

Contractually required rental payments on leases meeting the criteria for capitalization classified as lease financed transactions due within the fourth year following the balance sheet date.

+ References

No definition available.

+ Details

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- Definition

Contractually required rental payments on leases meeting the criteria for capitalization classified as lease financed transactions due within the third year following the balance sheet date.

+ References

No definition available.

+ Details

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- Definition

Contractually required rental payments on leases meeting the criteria for capitalization classified as lease financed transactions due within the second year following the balance sheet date.

+ References

No definition available.

+ Details

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- Definition

Contractually required rental payments on leases meeting the criteria for capitalization classified as lease financed transactions due after the fifth year following the balance sheet date.

+ References

No definition available.

+ Details

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Namespace Prefix:	kr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Represents the term of the lease.

+ References

No definition available.

+ Details

Name:	kr_LeaseTerm
Namespace Prefix:	kr_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	kr_OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentalsDueAbstract
Namespace Prefix:	kr_
Data Type:	xbrli:stringItemType
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Period Type:	duration

- Definition

Represents the term of the sublease.

+ References

No definition available.

+ Details

Name:	kr_SubleaseTerm
Namespace Prefix:	kr_
Data Type:	xbrli:durationItemType
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Period Type:	duration

- Definition

Amount of minimum lease payments for capital leases.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6455398&loc=d3e45280-112737

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- Definition

Amount of minimum lease payments maturing in the next fiscal year following the latest fiscal year for capital leases.

+ References

+ Details

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- Definition

Amount of minimum lease payments maturing in the fifth fiscal year following the latest fiscal year for capital leases.

+ References

+ Details

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- Definition

Amount of minimum lease payments maturing in the forth fiscal year following the latest fiscal year for capital leases.

+ References

+ Details

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Namespace Prefix:	us-gaap_
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Period Type:	instant

- Definition

Amount of minimum lease payments maturing in the third fiscal year following the latest fiscal year for capital leases.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

Amount of minimum lease payments maturing in the second fiscal year following the latest fiscal year for capital leases.

+ References

+ Details

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Namespace Prefix:	us-gaap_
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- Definition

Amount of minimum lease payments maturing after the fifth fiscal year following the latest fiscal year for capital leases.

+ References

+ Details

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

- Definition

Amount necessary to reduce net minimum lease payments to present value for capital leases.

+ References

+ Details

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

- Definition

Present value of minimum lease payments for capital leases net of executory costs, including amounts paid by the lessee to the lessor for insurance, maintenance and taxes.

+ References

+ Details

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

- Definition

Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

+ References

No definition available.

+ Details

Name:	us-gaap_LeaseAndRentalExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 10

-Section 55

-Paragraph 40

-Subparagraph (Note 3)

-URI http://asc.fasb.org/extlink&oid=6584154&loc=d3e38371-112697

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 20

-Section 50

-Paragraph 2

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41502-112717

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- Definition

Amount of required minimum rental payments maturing in the next fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

+ References

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- Definition

Amount of required minimum rental payments maturing in the fifth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

+ References

+ Details

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Period Type:	instant

- Definition

Amount of required minimum rental payments maturing in the forth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

+ References

+ Details

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Period Type:	instant

- Definition

Amount of required minimum rental payments maturing in the third fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

+ References

+ Details

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

- Definition

Amount of required minimum rental payments maturing in the second fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

+ References

+ Details

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

- Definition

Amount of required minimum rental payments maturing after the fifth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

+ References

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

- Details

Name:	us-gaap_OperatingLeasesRentExpenseAbstract
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- Definition

The increases or decreases in lease payments that result from changes occurring after the inception of the lease in the factors (other than the passage of time) on which lease payments are based, except that any escalation of minimum lease payments relating to increases in construction or acquisition cost of the leased property or for increases in some measure of cost or value during the construction or preconstruction period, are excluded from contingent rentals. Contingent rentals also may include amounts for which the triggering events have not yet occurred or the specified targets for which have not yet been achieved (such as sales based percentage rent), but which events are considered probable of occurring or which specified targets are considered probable of being achieved.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Contingent Rentals

-URI http://asc.fasb.org/extlink&oid=6508509

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6452660&loc=d3e36991-112694

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 10

-Section 55

-Paragraph 40

-Subparagraph (Note 3)

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 10

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-Paragraph 1

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 10

-Section 25

-Paragraph 35

-URI http://asc.fasb.org/extlink&oid=7579899&loc=d3e35050-112683

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

This element represents the payments that the lessee is obligated to make or can be required to make in connection with a property under the terms of an agreement classified as an operating lease, excluding contingent rentals and a guarantee by the lessee of the lessor's debt and the lessee's obligation to pay (apart from the rental payments) executory costs such as insurance, maintenance, and taxes.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 10

-Section 55

-Paragraph 40

-Subparagraph (Note 3)

-URI http://asc.fasb.org/extlink&oid=6584154&loc=d3e38371-112697

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 10

-Section 25

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=7661868&loc=d3e34039-112682

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The total amount of sublease rental income recognized during the period that reduces the entity's rent expense incurred under operating leases.

+ References

+ Details

Name:	us-gaap_OperatingLeasesRentExpenseSubleaseRentals1
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LEASES AND LEASE-FINANCED TRANSACTIONS (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended						4 Months Ended		12 Months Ended
	Feb. 01, 2014	Nov. 09, 2013	Aug. 17, 2013	Feb. 02, 2013	Nov. 03, 2012	Aug. 11, 2012	May 25, 2013	May 19, 2012	Feb. 01, 2014	Feb. 02, 2013	Jan. 28, 2012
Rent expense under operating leases
Minimum rentals									$ 706	$ 727	$ 715
Contingent payments									13	13	13
Tenant income									(106)	(112)	(109)
Total rent expense	147	138	139	157	141	139	189	191	613	628	619
Capital Leases, Future minimum annual rentals and payments
Capital Leases, 2014	62								62
Capital Leases, 2015	57								57
Capital Leases, 2016	53								53
Capital Leases, 2017	52								52
Capital Leases, 2018	43								43
Capital Leases, Thereafter	349								349
Minimum capital lease annual rentals and payments	616								616
Less amount representing interest	(204)								(204)
Present value of net minimum lease payments under capital leases	412								412
Future minimum rentals under noncancelable subleases	217								217
Operating Leases, Future minimum annual rentals and payments
Operating Leases, 2014	832								832
Operating Leases, 2015	770								770
Operating Leases, 2016	708								708
Operating Leases, 2017	634								634
Operating Leases, 2018	563								563
Operating Leases, Thereafter	3,101								3,101
Minimum operating lease annual rentals and payments	6,608								6,608
Lease-Financed Transactions, Future minimum annual rentals and payments
Lease-Financed Transactions, 2014	6								6
Lease-Financed Transactions, 2015	7								7
Lease-Financed Transactions, 2016	7								7
Lease-Financed Transactions, 2017	8								8
Lease-Financed Transactions, 2018	8								8
Lease-Financed Transactions, Thereafter	83								83
Minimum lease-financed transactions annual rentals and payments	$ 119								$ 119
Minimum
Leases and lease-financed transactions
Lease term									10 years
Sublease term									1 year
Maximum
Leases and lease-financed transactions
Lease term									20 years
Sublease term									20 years