Segment Information (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	May 03, 2013	May 04, 2012
Net Revenue:
Revenues	$ 14,074	$ 14,422
Operating income	226	824
Internal revenue
Net Revenue:
Revenues	343	337
Segments
Net Revenue:
Revenues	14,417	14,759
Operating income	645	1,050
End User Computing
Net Revenue:
Revenues	8,714	9,632
End User Computing | Internal revenue
Net Revenue:
Revenues	206	200
End User Computing | Segments
Net Revenue:
Revenues	8,920	9,832
Operating income	224	639
Enterprise Solutions Group
Net Revenue:
Revenues	2,959	2,681
Enterprise Solutions Group | Internal revenue
Net Revenue:
Revenues	134	135
Enterprise Solutions Group | Segments
Net Revenue:
Revenues	3,093	2,816
Operating income	136	79
Dell Software Group
Net Revenue:
Revenues	295	38
Dell Software Group | Internal revenue
Net Revenue:
Revenues	0	0
Dell Software Group | Segments
Net Revenue:
Revenues	295	38
Operating income	(85)	(6)
Dell Services
Net Revenue:
Revenues	2,106	2,071
Dell Services | Internal revenue
Net Revenue:
Revenues	3	2
Dell Services | Segments
Net Revenue:
Revenues	2,109	2,073
Operating income	$ 370	$ 338