Represents the conditional period of incurrence of additional term loans to make scheduled quarterly payments.

No definition available.

Name:	mik_ConditionalPeriodOfIncurrenceOfAdditionalTermLoansToMakeScheduledQuarterlyPayments
Namespace Prefix:	mik_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the period of quarterly payments of debt.

+ References

No definition available.

+ Details

Name:	mik_DebtInstrumentPeriodOfQuarterlyPayments
Namespace Prefix:	mik_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the scheduled amount of quarterly payment as a percentage of the principal amount of the debt instrument.

+ References

No definition available.

+ Details

Name:	mik_DebtInstrumentQuarterlyPaymentAsPercentageOfPrincipalAmount
Namespace Prefix:	mik_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the scheduled amount of quarterly payment of the principal amount of the debt instrument.

+ References

No definition available.

+ Details

Name:	mik_DebtInstrumentQuarterlyPaymentOfPrincipalAmount
Namespace Prefix:	mik_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

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

- 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

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ 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(b),22(b))

-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, 22

-Article 5

+ Details

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

- Details

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

- 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

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

Debt (Details 3) (USD $) In Millions, unless otherwise specified					3 Months Ended	6 Months Ended
	Aug. 03, 2013	Feb. 02, 2013	Jul. 28, 2012	Aug. 03, 2013 Restated Revolving Credit Facility	Aug. 03, 2013 Restated Term Loan Credit Facility	Aug. 03, 2013 Restated Term Loan Credit Facility
Asset-based Revolving Credit Facility
Borrowing base amount				$ 650
Outstanding borrowings				222
Outstanding letters of credit				61
Unused borrowing capacity				367
Scheduled quarterly payments as a percentage of the original principal amount of the term loans						0.25%
Period of incurrence of additional term loans to make scheduled quarterly payments						6 years 9 months
Scheduled quarterly payments of the original principal amount of the term loans					4
Current portion of long-term debt	$ 238	$ 150	$ 1		$ 16	$ 16
Period of scheduled quarterly payments					12 months