v2.4.1.9

Organization and Summary of Significant Accounting Policies (Percentage of Sales by Merchandise Category) (Details) | 12 Months Ended
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Jan. 31, 2015 | Feb. 01, 2014 | Feb. 02, 2013
Percentage of sales from Merchandise Categories | 100.00%m_PercentageOfSalesFromMerchandiseCategories | 100.00%m_PercentageOfSalesFromMerchandiseCategories | 100.00%m_PercentageOfSalesFromMerchandiseCategories
Feminine Accessories, Intimate Apparel, Shoes and Cosmetics [Member] |  |  |
Percentage of sales from Merchandise Categories | 38.00%m_PercentageOfSalesFromMerchandiseCategories / us-gaap_ProductOrServiceAxis = m_FeminineAccessoriesIntimateApparelShoesAndCosmeticsMember | 38.00%m_PercentageOfSalesFromMerchandiseCategories / us-gaap_ProductOrServiceAxis = m_FeminineAccessoriesIntimateApparelShoesAndCosmeticsMember | 38.00%m_PercentageOfSalesFromMerchandiseCategories / us-gaap_ProductOrServiceAxis = m_FeminineAccessoriesIntimateApparelShoesAndCosmeticsMember
Feminine Apparel [Member] |  |  |
Percentage of sales from Merchandise Categories | 23.00%m_PercentageOfSalesFromMerchandiseCategories / us-gaap_ProductOrServiceAxis = m_FeminineApparelMember | 23.00%m_PercentageOfSalesFromMerchandiseCategories / us-gaap_ProductOrServiceAxis = m_FeminineApparelMember | 23.00%m_PercentageOfSalesFromMerchandiseCategories / us-gaap_ProductOrServiceAxis = m_FeminineApparelMember
Men's and Children's [Member] |  |  |
Percentage of sales from Merchandise Categories | 23.00%m_PercentageOfSalesFromMerchandiseCategories / us-gaap_ProductOrServiceAxis = m_MensAndChildrensMember | 23.00%m_PercentageOfSalesFromMerchandiseCategories / us-gaap_ProductOrServiceAxis = m_MensAndChildrensMember | 23.00%m_PercentageOfSalesFromMerchandiseCategories / us-gaap_ProductOrServiceAxis = m_MensAndChildrensMember
Home/Miscellaneous [Member] |  |  |
Percentage of sales from Merchandise Categories | 16.00%m_PercentageOfSalesFromMerchandiseCategories / us-gaap_ProductOrServiceAxis = m_HomeAndMiscellaneousMember | 16.00%m_PercentageOfSalesFromMerchandiseCategories / us-gaap_ProductOrServiceAxis = m_HomeAndMiscellaneousMember | 16.00%m_PercentageOfSalesFromMerchandiseCategories / us-gaap_ProductOrServiceAxis = m_HomeAndMiscellaneousMember

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- Definition Percentage of Sales From Merchandise Categories provided on an enterprise wide basis + References No definition available. + Details
Name: | m_PercentageOfSalesFromMerchandiseCategories
Namespace Prefix: | m_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_ProductOrServiceAxis=m_FeminineAccessoriesIntimateApparelShoesAndCosmeticsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_ProductOrServiceAxis=m_FeminineApparelMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_ProductOrServiceAxis=m_HomeAndMiscellaneousMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_ProductOrServiceAxis=m_MensAndChildrensMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |