Goodwill and Intangible Assets (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Nov. 02, 2012
Goodwill Allocated To Company Business Segments
Balance at beginning of period	$ 5,838
Goodwill acquired during the period	3,374
Adjustments	(21)
Balance at end of period	9,191
Large Enterprise
Goodwill Allocated To Company Business Segments
Balance at beginning of period	2,222
Goodwill acquired during the period	1,294
Adjustments	(9)
Balance at end of period	3,507
Public
Goodwill Allocated To Company Business Segments
Balance at beginning of period	2,547
Goodwill acquired during the period	945
Adjustments	(8)
Balance at end of period	3,484
Small and Medium Business
Goodwill Allocated To Company Business Segments
Balance at beginning of period	759
Goodwill acquired during the period	1,135
Adjustments	(4)
Balance at end of period	1,890
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