Segment Information, Segment Depreciation Expense (Details 2) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Feb. 03, 2012	Jan. 28, 2011	Jan. 29, 2010
Depreciation expense	$ 545	$ 621	$ 647
Large Enterprise
Depreciation expense	162	180	175
Public
Depreciation expense	145	170	177
Small and Medium Business
Depreciation expense	133	146	148
Consumer
Depreciation expense	$ 105	$ 125	$ 147