Supplemental Consolidated Financial Information (Details) (USD $) In Millions, unless otherwise specified	Feb. 01, 2013	Feb. 03, 2012	Jan. 28, 2011	Jan. 29, 2010
Accounts receivable, net:
Gross accounts receivable	$ 6,701	$ 6,539
Allowance for doubtful accounts	(72)	(63)
Total	6,629	6,476
Inventory, net:
Production materials	593	753
Work-in-process	283	239
Finished goods	506	412
Total	1,382	1,404
Prepaid expenses	446	362
Property, plant and equipment, net:
Property, plant and equipment, gross	5,300	4,934
Accumulated depreciation and amortization	(3,174)	(2,810)
Total	2,126	2,124
Accrued and other current liabilities:
Compensation	1,182	1,604
Warranty liability	492	572	575
Income and other taxes	807	432
Total	3,644	3,740
Deferred revenue:
Deferred extended warranty revenue	7,103	7,002	6,416	5,910
Deferred revenue	8,344	7,593
Short-term deferred revenue	4,373	3,738
Long-term deferred revenue	3,971	3,855
Total deferred revenue	8,344	7,593
Other non-current liabilities:
Warranty liability	270	316	320
Unrecognized tax benefits, net	2,908	2,563
Deferred tax liabilities	918	405
Total	4,187	3,373
Other deferred services revenue
Deferred revenue:
Deferred revenue	497	378
Total deferred revenue	497	378
Total deferred services revenue
Deferred revenue:
Deferred revenue	7,600	7,380
Total deferred revenue	7,600	7,380
Deferred revenue- Dell software
Deferred revenue:
Deferred revenue	552	0
Total deferred revenue	552	0
Other deferred revenue
Deferred revenue:
Deferred revenue	192	213
Total deferred revenue	192	213
Computer equipment
Property, plant and equipment, net:
Property, plant and equipment, gross	2,591	2,309
Land and buildings
Property, plant and equipment, net:
Property, plant and equipment, gross	1,957	1,843
Machinery and other equipment
Property, plant and equipment, net:
Property, plant and equipment, gross	752	782
Other
Accrued and other current liabilities:
Total	1,163	1,132
Other
Other non-current liabilities:
Total	$ 91	$ 89