Earnings Per Share (Computation Of Basic and Diluted Earnings Per Share) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	May 04, 2013	Apr. 28, 2012
Earnings Per Share [Abstract]
Net income (loss)	$ 217	$ 181
Net income available to common stockholders, basic	217	181
Net income available to common stockholders, diluted	$ 217	$ 181
Basic earnings per share	$ 0.56	$ 0.43
Diluted earnings per share	$ 0.55	$ 0.43
Average number of shares issued, basic	387.0	415.4
Shares to be issued under deferred compensation and other plans	1.2	1.7
Average number of shares outstanding, basic	388.2	417.1
Effect of dilutive securities-stock options, restricted stock and restricted stock units	6.3	7.2
Average number of shares outstanding, diluted	394.5	424.3