Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	May 05, 2018	Apr. 29, 2017
Numerator
Net earnings	$ 208	$ 188
Denominator
Weighted-average common shares outstanding (in shares)	282.6	309.2
Effect of potentially dilutive securities:
Nonvested share awards (in shares)	5.7	5.8
Weighted-average common shares outstanding, assuming dilution (in shares)	288.3	315.0
Basic (in dollars per share)	$ 0.74	$ 0.61
Diluted earnings per share	$ 0.72	$ 0.60
Antidilutive securities excluded from computation of earnings per share	0.1	0.7