Goodwill and Intangible Assets (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Aug. 03, 2012
Goodwill Allocated To Company Business Segments
Balance at beginning of period	$ 5,838
Goodwill acquired during the period	1,734
Adjustments	(14)
Balance at end of period	7,558
Large Enterprise
Goodwill Allocated To Company Business Segments
Balance at beginning of period	2,222
Goodwill acquired during the period	555
Adjustments	(7)
Balance at end of period	2,770
Public
Goodwill Allocated To Company Business Segments
Balance at beginning of period	2,547
Goodwill acquired during the period	454
Adjustments	(3)
Balance at end of period	2,998
Small and Medium Business
Goodwill Allocated To Company Business Segments
Balance at beginning of period	759
Goodwill acquired during the period	725
Adjustments	(4)
Balance at end of period	1,480
Consumer
Goodwill Allocated To Company Business Segments
Balance at beginning of period	310
Goodwill acquired during the period	0
Adjustments	0
Balance at end of period	$ 310