Warranty and Deferred Extended Warranty Revenue (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Feb. 01, 2013	Feb. 03, 2012	Jan. 28, 2011
Warranty liability:
Warranty liability at beginning of period	$ 888	$ 895	$ 912
Costs accrued for new warranty contracts and changes in estimates for pre-existing warranties	992	1,025	1,046
Service obligations honored	(1,118)	(1,032)	(1,063)
Warranty liability at end of period	762	888	895
Current portion	492	572	575
Non-current portion	270	316	320
Warranty liability at end of period	762	888	895
Deferred extended warranty revenue:
Deferred extended warranty revenue at beginning of period	7,002	6,416	5,910
Revenue deferred for new extended warranties	4,130	4,301	3,877
Revenue Recognized	(4,029)	(3,715)	(3,371)
Deferred extended warranty revenue at end of period	7,103	7,002	6,416
Current portion	3,400	3,265	2,959
Non-current portion	3,703	3,737	3,457
Deferred extended warranty revenue at end of period	$ 7,103	$ 7,002	$ 6,416