Quarterly Results (unaudited) (Unaudited Quarterly Results) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Feb. 02, 2013	Oct. 27, 2012	Jul. 28, 2012	Apr. 28, 2012	Jan. 28, 2012	Oct. 29, 2011	Jul. 30, 2011	Apr. 30, 2011	Feb. 02, 2013	Jan. 28, 2012	Jan. 29, 2011
Quarterly Financial Data [Abstract]
Net sales	$ 9,350	$ 6,075	$ 6,118	$ 6,143	$ 8,724	$ 5,853	$ 5,939	$ 5,889	$ 27,686	$ 26,405	$ 25,003
Cost of sales	(5,554)	(3,672)	(3,555)	(3,757)	(5,151)	(3,544)	(3,457)	(3,586)	(16,538)	(15,738)	(14,824)
Gross margin	3,796	2,403	2,563	2,386	3,573	2,309	2,482	2,303	11,148	10,667	10,179
Selling, general and administrative expenses	(2,400)	(2,078)	(2,009)	(1,995)	(2,314)	(2,018)	(1,976)	(1,973)	(8,482)	(8,281)	(8,260)
Impairments, store closing costs and gain on sale of leases	(5)	0	0	0	25	0	0	0	(5)	25	(25)
Net income	$ 730	$ 145	$ 279	$ 181	$ 745	$ 139	$ 241	$ 131	$ 1,335	$ 1,256	$ 847
Basic earnings per share	$ 1.86	$ 0.36	$ 0.68	$ 0.43	$ 1.77	$ 0.33	$ 0.56	$ 0.31	$ 3.29	$ 2.96	$ 2.00
Diluted earnings per share	$ 1.83	$ 0.36	$ 0.67	$ 0.43	$ 1.74	$ 0.32	$ 0.55	$ 0.30	$ 3.24	$ 2.92	$ 1.98