Consolidated Statements of Income (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Oct. 27, 2012	Oct. 29, 2011	Oct. 27, 2012	Oct. 29, 2011
Income Statement [Abstract]
Net sales	$ 6,075	$ 5,853	$ 18,336	$ 17,681
Cost of sales	(3,672)	(3,544)	(10,984)	(10,587)
Gross margin	2,403	2,309	7,352	7,094
Selling, general and administrative expenses	(2,078)	(2,018)	(6,082)	(5,967)
Operating income (loss)	325	291	1,270	1,127
Interest expense	(104)	(109)	(322)	(338)
Interest income	1	1	2	3
Income (loss) before income taxes	222	183	950	792
Federal, state and local income tax expense	(77)	(44)	(345)	(281)
Net income	$ 145	$ 139	$ 605	$ 511
Basic earnings per share	$ 0.36	$ 0.33	$ 1.48	$ 1.20
Diluted earnings per share	$ 0.36	$ 0.32	$ 1.45	$ 1.18