Goodwill and Intangible Assets, Intangible Assets (Details 1) (USD $) In Millions, unless otherwise specified	Aug. 03, 2012	Feb. 03, 2012
Intangible assets associated with completed acquisitions
Gross Carrying Amount	$ 3,891	$ 2,876
Accumulated Amortization	(1,339)	(1,079)
Amortizable intangible assets	2,552	1,797
Intangible Assets Gross Excluding Goodwill	3,948	2,936
Net Carrying Amount	2,609	1,857
Customer relationships
Intangible assets associated with completed acquisitions
Gross Carrying Amount	1,943	1,569
Accumulated Amortization	(616)	(506)
Net Carrying Amount	1,327	1,063
Technology
Intangible assets associated with completed acquisitions
Gross Carrying Amount	1,746	1,156
Accumulated Amortization	(627)	(490)
Net Carrying Amount	1,119	666
Non-compete agreements
Intangible assets associated with completed acquisitions
Gross Carrying Amount	75	70
Accumulated Amortization	(48)	(42)
Net Carrying Amount	27	28
Trade names
Intangible assets associated with completed acquisitions
Gross Carrying Amount	127	81
Accumulated Amortization	(48)	(41)
Net Carrying Amount	79	40
In-process research and development
Intangible assets associated with completed acquisitions
Indefinite lived intangible assets	31	34
Indefinite lived intangible assets
Intangible assets associated with completed acquisitions
Indefinite lived intangible assets	$ 26	$ 26