Financial Services, Financing Receivables Aging (Details 2) (USD $) In Millions, unless otherwise specified	May 04, 2012	Feb. 03, 2012
Financing Receivable, Recorded Investment, Past Due
Current	$ 3,978	$ 4,063
1-90 Days Past due	328	382
Greater than 90 days past due	65	94
Customer receivables, gross	4,371	4,539
Revolving Loans
Financing Receivable, Recorded Investment, Past Due
Customer receivables, gross	1,956	2,096
Revolving Loans | Dell Preferred Account (DPA) | Owned since inception
Financing Receivable, Recorded Investment, Past Due
Current	1,188	1,249
1-90 Days Past due	135	148
Greater than 90 days past due	39	49
Customer receivables, gross	1,362	1,446
Revolving Loans | Dell Preferred Account (DPA) | Purchased
Financing Receivable, Recorded Investment, Past Due
Current	240	272
1-90 Days Past due	38	47
Greater than 90 days past due	12	18
Customer receivables, gross	290	337
Revolving Loans | Dell Business Credit (DBC)
Financing Receivable, Recorded Investment, Past Due
Current	267	272
1-90 Days Past due	30	33
Greater than 90 days past due	7	8
Customer receivables, gross	304	313
Fixed-term loans
Financing Receivable, Recorded Investment, Past Due
Customer receivables, gross	2,415	2,443
Fixed-term loans | Non-Commercial | Owned since inception
Financing Receivable, Recorded Investment, Past Due
Current	37	29
1-90 Days Past due	1	1
Greater than 90 days past due	0	0
Customer receivables, gross	38	30
Fixed-term loans | Non-Commercial | Purchased
Financing Receivable, Recorded Investment, Past Due
Current	54	61
1-90 Days Past due	4	5
Greater than 90 days past due	1	1
Customer receivables, gross	59	67
Fixed-term loans | Small Commercial
Financing Receivable, Recorded Investment, Past Due
Current	250	234
1-90 Days Past due	13	12
Greater than 90 days past due	1	4
Customer receivables, gross	264	250
Fixed-term loans | Medium & Large Commerical
Financing Receivable, Recorded Investment, Past Due
Current	1,942	1,946
1-90 Days Past due	107	136
Greater than 90 days past due	5	14
Customer receivables, gross	$ 2,054	$ 2,096