Supplemental Financial Information (Details) (USD $) In Millions, unless otherwise specified	Aug. 02, 2013	May 03, 2013	Feb. 01, 2013	Aug. 03, 2012	May 04, 2012	Feb. 03, 2012
Inventories, net:
Production materials	$ 618		$ 593
Work-in-process	348		283
Finished goods	502		506
Total	1,468		1,382
Deferred revenue:
Deferred extended warranty revenue	7,004	6,982	7,048	7,097	7,044	7,002
Deferred revenue	8,315		8,344
Short-term deferred revenue	4,312		4,373
Long-term deferred revenue	4,003		3,971
Other deferred services revenue
Deferred revenue:
Deferred revenue	437		497
Total deferred services revenue
Deferred revenue:
Deferred revenue	7,441		7,545
Deferred revenue - Dell software
Deferred revenue:
Deferred revenue	685		607
Other deferred revenue
Deferred revenue:
Deferred revenue	$ 189		$ 192