Segment Information, Segment Assets (Details 1) (USD $) In Millions, unless otherwise specified	Feb. 03, 2012	Jan. 28, 2011
Segment Reporting, Asset Reconciling Item
Segment Reporting, Reconciling Items, Assets	$ 44,533	$ 38,599
Corporate
Segment Reporting, Asset Reconciling Item
Segment Reporting, Reconciling Items, Assets	36,171	30,264
Large Enterprise
Segment Reporting, Asset Reconciling Item
Segment Reporting, Reconciling Items, Assets	3,108	2,934
Public
Segment Reporting, Asset Reconciling Item
Segment Reporting, Reconciling Items, Assets	2,330	2,545
Small and Medium Business
Segment Reporting, Asset Reconciling Item
Segment Reporting, Reconciling Items, Assets	1,421	1,398
Consumer
Segment Reporting, Asset Reconciling Item
Segment Reporting, Reconciling Items, Assets	$ 1,503	$ 1,458