Earnings Per Share (Computation Of Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Aug. 01, 2015	Aug. 02, 2014	Aug. 01, 2015	Aug. 02, 2014
Earnings Per Share [Abstract]
Net earnings	$ 211	$ 183	$ 339	$ 323
Basic shares (in shares)	189.4	189.6	190.0	189.7
Dilutive effect of stock options and other (in shares)	4.1	3.1	4.2	3.0
Diluted shares (in shares)	193.5	192.7	194.2	192.7
Earnings per basic share (in dollars per share)	$ 1.11	$ 0.97	$ 1.78	$ 1.70
Earnings per diluted share (in dollars per share)	$ 1.09	$ 0.95	$ 1.74	$ 1.68
Anti-dilutive stock options and other (in shares)	1.7	1.8	1.7	3.4