Share-Based Compensation (Options Granted Under Stock Option Plans) (Details) shares in Thousands	3 Months Ended
	May 05, 2018 $ / shares shares
Number of Shares
Options outstanding at beginning of year	2,739
Granted	379
Exercised	(4)
Expired or cancelled	(23)
Options outstanding at end of period	3,091
Options exercisable at end of period	2,174
Options available for future grant at end of period	8,271
Weighted-Average Exercise Price
Options outstanding at beginning of year | $ / shares	$ 52.45
Granted | $ / shares	44.79
Exercised | $ / shares	11.66
Expired or cancelled | $ / shares	50.19
Options outstanding at end of period | $ / shares	51.58
Options exercisable at end of period | $ / shares	$ 48.91
Options outstanding, weighted-average remaining contractual life	6 years 8 months 12 days
Options exercisable at end of period, Weighted-average remaining contractual life	5 years 7 months 6 days