Goodwill and Intangible Assets (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Aug. 02, 2013
Goodwill Allocated To Company Business Segments
Balance at beginning of period	$ 9,304
Goodwill acquired during the period	55
Adjustments	(106)
Balance at end of period	9,253
End-User Computing
Goodwill Allocated To Company Business Segments
Balance at beginning of period	1,499
Goodwill acquired during the period	17
Adjustments	(4)
Balance at end of period	1,512
Enterprise Solutions Group
Goodwill Allocated To Company Business Segments
Balance at beginning of period	2,244
Goodwill acquired during the period	0
Adjustments	(5)
Balance at end of period	2,239
Dell Software Group
Goodwill Allocated To Company Business Segments
Balance at beginning of period	890
Goodwill acquired during the period	38
Adjustments	(85)
Balance at end of period	843
Dell Services
Goodwill Allocated To Company Business Segments
Balance at beginning of period	4,671
Goodwill acquired during the period	0
Adjustments	(12)
Balance at end of period	$ 4,659