Segment Information, Products and Services (Details 2) (USD $) In Millions, unless otherwise specified	3 Months Ended
	May 03, 2013	May 04, 2012
Net Revenue:
Revenues	$ 14,074	$ 14,422
Segments
Net Revenue:
Revenues	14,417	14,759
Internal revenue
Net Revenue:
Revenues	343	337
End User Computing
Net Revenue:
Revenues	8,714	9,632
End User Computing | Segments
Net Revenue:
Revenues	8,920	9,832
End User Computing | Segments | Desktops and thin client
Net Revenue:
Revenues	3,273	3,335
End User Computing | Segments | Mobility
Net Revenue:
Revenues	3,618	4,328
End User Computing | Segments | Third-party software and peripherals
Net Revenue:
Revenues	2,029	2,169
End User Computing | Internal revenue
Net Revenue:
Revenues	206	200
Enterprise Solutions Group
Net Revenue:
Revenues	2,959	2,681
Enterprise Solutions Group | Segments
Net Revenue:
Revenues	3,093	2,816
Enterprise Solutions Group | Segments | Servers, peripherals, and networking
Net Revenue:
Revenues	2,669	2,343
Enterprise Solutions Group | Segments | Storage
Net Revenue:
Revenues	424	473
Enterprise Solutions Group | Internal revenue
Net Revenue:
Revenues	134	135
Dell Software Group
Net Revenue:
Revenues	295	38
Dell Software Group | Segments
Net Revenue:
Revenues	295	38
Dell Software Group | Internal revenue
Net Revenue:
Revenues	0	0
Dell Services
Net Revenue:
Revenues	2,106	2,071
Dell Services | Segments
Net Revenue:
Revenues	2,109	2,073
Dell Services | Segments | Support and deployment
Net Revenue:
Revenues	1,202	1,176
Dell Services | Segments | Infrastructure, cloud, and security
Net Revenue:
Revenues	612	550
Dell Services | Segments | Applications and business process
Net Revenue:
Revenues	295	347
Dell Services | Internal revenue
Net Revenue:
Revenues	$ 3	$ 2