Commitments and Contingencies (Details)	12 Months Ended
Jan. 28, 2011 USD ($)	Dec. 23, 2009 EUR (€)	Dec. 23, 2004 EUR (€)
Commitments and Contingencies
Payments for Legal Settlements	$ 100,000,000
Civil Monetary Settlement	$4 million
Loss Contingency, Damages Sought	$40 million
Legal Settlement Payments	40,000,000
Levy assessed			12
Copyright Levy Assessed Minimum Of Range		3.15
Copyright Levy Assessed Maximum Of Range		€ 13.65

Civil Monetary Settlement

Name:	dell_CivilMonetarySettlement
Namespace Prefix:	dell
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

+ Details

Name:	dell_CopyrightLevyAssessedMaximumOfRange
Namespace Prefix:	dell
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

- Definition

+ Details

Name:	dell_CopyrightLevyAssessedMinimumOfRange
Namespace Prefix:	dell
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

- Definition

Legal settlement paid or payable

+ Details

Name:	dell_LegalSettlementPayments
Namespace Prefix:	dell
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Levy assessed by court.

+ Details

Name:	dell_LevyAssessed
Namespace Prefix:	dell
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ Details

Name:	us-gaap_LossContingenciesLineItems
Namespace Prefix:	us-gaap
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Describes the form and magnitude of the award the plaintiff seeks in the legal matter, which may include an unspecified amount of money.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
-Paragraph 9, 10, 11, 12

+ Details

Name:	us-gaap_LossContingencyDamagesSought
Namespace Prefix:	us-gaap
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of cash paid for the settlement of litigation or for other legal issues during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
-Paragraph 27

+ Details

Name:	us-gaap_PaymentsForLegalSettlements
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration