Annual report pursuant to Section 13 and 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Organization and Summary of Significant Accounting Policies (Policy)
Notes Tables
Notes Details

Organization and Summary of Significant Accounting Policies (Narrative) (Details)

v2.4.1.9

Organization and Summary of Significant Accounting Policies (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jan. 31, 2015	Feb. 01, 2014
Number of states in which entity operates	45
Maximum number of merchandise vendors providing advertising allowances	1,000
Number of years analyzed for gift card redemption patterns	3
Minimum [Member]
Number of months sales are expected to occur after advertising and direct marketing programs	1
Maximum [Member]
Number of months sales are expected to occur after advertising and direct marketing programs	4
Vendor allowance terms (in years)	1
Buildings and Building Equipment [Member] \| Minimum [Member]
Estimated useful life in years, minimum	15 years
Buildings and Building Equipment [Member] \| Maximum [Member]
Estimated useful life in years, minimum	50 years
Fixtures and Equipment [Member] \| Minimum [Member]
Estimated useful life in years, minimum	3 years
Fixtures and Equipment [Member] \| Maximum [Member]
Estimated useful life in years, minimum	15 years
Software and Software Development [Member] \| Minimum [Member]
Estimated useful life in years, minimum	2 years
Software and Software Development [Member] \| Maximum [Member]
Estimated useful life in years, minimum	5 years
Cash and Cash Equivalents [Member]
Credit card sales transactions settled early	111	$ 101

- Definition

Maximum Number Of Merchandise Vendors Providing Advertising Allowances

+ References

No definition available.

+ Details

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- Definition

Number Of Years In Analyzed Gift Card Redemption Data

+ References

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+ Details

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- Definition

Period Which Sales Are Expected To Occur Due To Advertising And Direct Marketing Costs

+ References

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+ Details

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Namespace Prefix:	m_
Data Type:	xbrli:integerItemType
Balance Type:	na
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- Definition

Vendor Allowance Terms In Years

+ References

No definition available.

+ Details

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Namespace Prefix:	m_
Data Type:	xbrli:integerItemType
Balance Type:	na
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- Definition

Amounts receivable from issuing a card to individuals or businesses that allows someone to make a purchase on borrowed money.

+ 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 210.5-02.8)

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

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- Definition

The number of states the entity operates in as of the balance sheet date.

+ References

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+ Details

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- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

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- Details

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