Financial Services, Financing Receivables by Credit Quality Indicator (Details 3) (USD $) In Millions, unless otherwise specified	Feb. 01, 2013	Feb. 03, 2012
Accounts, Notes, Loans and Financing Receivable
Customer receivables, gross	$ 4,369	$ 4,539
Revolving Loans
Accounts, Notes, Loans and Financing Receivable
Customer receivables, gross	1,834	2,096
Fixed-term loans
Accounts, Notes, Loans and Financing Receivable
Customer receivables, gross	2,535	2,443
Dell Preferred Account (DPA) | Revolving Loans
Accounts, Notes, Loans and Financing Receivable
Best	201	248
Good	435	492
Mixed	903	1,043
Customer receivables, gross	1,539	1,783
Dell Business Credit (DBC) | Revolving Loans
Accounts, Notes, Loans and Financing Receivable
Best	99	111
Good	88	98
Mixed	108	104
Customer receivables, gross	295	313
Consumer and Small Commercial | Fixed-term loans
Accounts, Notes, Loans and Financing Receivable
Best	90	97
Good	117	120
Mixed	120	130
Customer receivables, gross	327	347
Medium & Large Commerical | Fixed-term loans
Accounts, Notes, Loans and Financing Receivable
Best	1,355	1,504
Good	582	363
Mixed	271	229
Customer receivables, gross	$ 2,208	$ 2,096