CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Oct. 27, 2012	Oct. 29, 2011	Oct. 27, 2012	Oct. 29, 2011
Net income	$ 215	$ 211	$ 609	$ 711
Other comprehensive income (loss), net of tax:
Unrealized gains (losses) on investments	3	(2)	3	15
Interest rate derivatives:
Unrealized loss arising during period	0	(15)	0	(30)
Reclassification adjustment for interest expense included in net income	1	0	2	0
Other comprehensive income (loss)	4	(17)	5	(15)
Comprehensive income	$ 219	$ 194	$ 614	$ 696