Financial Services, Financing Receivables Aging (Details 2) (USD $) In Millions, unless otherwise specified	Nov. 02, 2012	Feb. 03, 2012
Financing Receivable, Recorded Investment, Past Due
Current	$ 3,736	$ 4,063
1-90 Days Past due	491	382
Greater than 90 days past due	76	94
Customer receivables, gross	4,303	4,539
Revolving Loans
Financing Receivable, Recorded Investment, Past Due
Customer receivables, gross	1,819	2,096
Revolving Loans | Dell Preferred Account (DPA) | Owned since inception
Financing Receivable, Recorded Investment, Past Due
Current	1,134	1,249
1-90 Days Past due	133	148
Greater than 90 days past due	43	49
Customer receivables, gross	1,310	1,446
Revolving Loans | Dell Preferred Account (DPA) | Purchased
Financing Receivable, Recorded Investment, Past Due
Current	182	272
1-90 Days Past due	30	47
Greater than 90 days past due	10	18
Customer receivables, gross	222	337
Revolving Loans | Dell Business Credit (DBC)
Financing Receivable, Recorded Investment, Past Due
Current	252	272
1-90 Days Past due	28	33
Greater than 90 days past due	7	8
Customer receivables, gross	287	313
Fixed-term loans
Financing Receivable, Recorded Investment, Past Due
Customer receivables, gross	2,484	2,443
Fixed-term loans | Non-Commercial | Owned since inception
Financing Receivable, Recorded Investment, Past Due
Current	46	29
1-90 Days Past due	2	1
Greater than 90 days past due	0	0
Customer receivables, gross	48	30
Fixed-term loans | Non-Commercial | Purchased
Financing Receivable, Recorded Investment, Past Due
Current	34	61
1-90 Days Past due	3	5
Greater than 90 days past due	0	1
Customer receivables, gross	37	67
Fixed-term loans | Small Commercial
Financing Receivable, Recorded Investment, Past Due
Current	229	234
1-90 Days Past due	10	12
Greater than 90 days past due	3	4
Customer receivables, gross	242	250
Fixed-term loans | Medium & Large Commerical
Financing Receivable, Recorded Investment, Past Due
Current	1,859	1,946
1-90 Days Past due	285	136
Greater than 90 days past due	13	14
Customer receivables, gross	$ 2,157	$ 2,096