Earnings Per Share (Computation Of Basic and Diluted Earnings (Loss) Per Share) (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
Earnings Per Share [Abstract]
Net income	$ 730	$ 145	$ 279	$ 181	$ 745	$ 139	$ 241	$ 131	$ 1,335	$ 1,256	$ 847
Net income (loss) available to common stockholders, basic									1,335	1,256	847
Net income (loss) available to common stockholders, diluted									$ 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
Average number of shares issued, basic									404.4	423.5	422.2
Shares to be issued under deferred compensation and other plans									1.1	1.0	1.1
Average number of shares outstanding, basic									405.5	424.5	423.3
Effect of dilutive securities-stock options, restricted stock and restricted stock units									6.7	5.9	4.0
Average number of shares outstanding, diluted									412.2	430.4	427.3