Represents the number of associates of the entity.

No definition available.

Name:	hds_NumberOfAssociates
Namespace Prefix:	hds_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of customers.

+ References

No definition available.

+ Details

Name:	hds_NumberOfCustomers
Namespace Prefix:	hds_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the number of distinct market sectors in which entity specializes as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	hds_NumberOfMarketSectorsInWhichEntitySpecializes
Namespace Prefix:	hds_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of operating locations.

+ References

No definition available.

+ Details

Name:	hds_NumberOfOperatingLocations
Namespace Prefix:	hds_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of products offered.

+ References

No definition available.

+ Details

Name:	hds_NumberOfProductsOffered
Namespace Prefix:	hds_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	hds_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureLineItems
Namespace Prefix:	hds_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the length of the current fiscal year in which the entity reports its annual results of operations.

+ References

No definition available.

+ Details

Name:	hds_WeeksInCurrentFiscalYear
Namespace Prefix:	hds_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the length of a fiscal year in which the entity reports its annual results of operations.

+ References

No definition available.

+ Details

Name:	hds_WeeksInFiscalYear
Namespace Prefix:	hds_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfReportableSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

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

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfStatesInWhichEntityOperates
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Carrying amount (including both current and noncurrent portions) of accrued known and estimated losses incurred as of the balance sheet date for which no insurance coverage exists, and for which a claim has been made or is probable of being asserted, typically arising from workmen's compensation-type of incidents and personal injury to nonemployees from accidents on the entity's property.

+ 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 210.5-02.24)

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

+ Details

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

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementGeographicalAxis=country_CA
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementGeographicalAxis=country_US
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementScenarioAxis=us-gaap_ScenarioForecastMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

NATURE OF BUSINESS AND BASIS OF PRESENTATION (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		12 Months Ended
	May 03, 2015 customer item segment location	May 04, 2014	Feb. 01, 2015	Jan. 31, 2016
Nature of Business and Accounting Policy disclosures
Number of distinct market sectors in which entity specializes	3
Number of operating locations	650hds_NumberOfOperatingLocations
Number of associates	15,000hds_NumberOfAssociates
Number of customer	500,000hds_NumberOfCustomers
Reportable segment	4us-gaap_NumberOfReportableSegments
Length of current fiscal year (in days)	91 days	91 days	364 days
Self-insurance reserves	$ 96us-gaap_SelfInsuranceReserve		$ 92us-gaap_SelfInsuranceReserve
Expected
Nature of Business and Accounting Policy disclosures
Length of current fiscal year (in days)				364 days
Minimum
Nature of Business and Accounting Policy disclosures
Number of SKUs offered	1,000,000
Length of fiscal year (in days)	364 days
Maximum
Nature of Business and Accounting Policy disclosures
Length of fiscal year (in days)	371 days
U.S.
Nature of Business and Accounting Policy disclosures
Number of states or provinces	48
Canada
Nature of Business and Accounting Policy disclosures
Number of states or provinces	7