Supplemental Consolidated Financial Information (Details) (USD $) In Millions, unless otherwise specified	Feb. 03, 2012	Jan. 28, 2011	Jan. 29, 2010
Accounts receivable, net:
Gross accounts receivable	$ 6,539	$ 6,589
Allowance for doubtful accounts	(63)	(96)
Total	6,476	6,493
Inventory, net:
Production materials	753	593
Work-in-process	239	232
Finished goods	412	476
Total	1,404	1,301
Prepaid expenses	362	374
Property, plant and equipment, net:
Computer equipment	2,309	2,275
Land and buildings	1,843	1,674
Machinery and other equipments	782	780
Property, plant and equipment, gross	4,934	4,729
Accumulated depreciation and amortization	(2,810)	(2,776)
Total	2,124	1,953
Accrued and other current liabilities:
Compensation	1,604	1,550
Warranty liability	572	575	593
Income and other taxes	432	529
Other	1,326	1,527
Total	3,934	4,181
Other non-current liabilities:
Warranty liability	316	320	319
Unrecognized tax benefits, net	2,563	2,293
Deferred tax liabilities	405	0
Other	108	73
Total	$ 3,392	$ 2,686