Earnings Per Share And Shareholders' Equity (Schedule of Company's Repurchase Program) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	1 Months Ended	6 Months Ended
	Sep. 02, 2015	Aug. 01, 2015	Aug. 02, 2014	May. 02, 2015	Jan. 31, 2015	Feb. 02, 2013
June 2015 Repurchase Program [Member]
Amount Authorized		$ 250.0
Shares Repurchased		624
Amount Repurchased		$ 52.0
Average Stock Price of Shares Repurchased within Program		$ 83.75
Remaining authorized repurchase amount		$ 198.0
February 2015 Repurchase Program [Member] [Member]
Amount Authorized				$ 250.0
Shares Repurchased		2,788
Amount Repurchased		$ 250.0
Average Stock Price of Shares Repurchased within Program		$ 89.45
Remaining authorized repurchase amount		$ 0.6
November 2012 Repurchase Program [Member]
Amount Authorized						$ 250.0
Shares Repurchased			826
Amount Repurchased			$ 45.0
Average Stock Price of Shares Repurchased within Program			$ 48.52
Remaining authorized repurchase amount				$ 91.0
Accounts Payable [Member] | June 2015 Repurchase Program [Member]
Share repurchase reflected in Accounts payable		$ 7.0
Accounts Payable [Member] | November 2012 Repurchase Program [Member]
Share repurchase reflected in Accounts payable			$ 0.0		$ 0.0
Subsequent Event [Member] | June 2015 Repurchase Program [Member]
Shares Repurchased	700
Amount Repurchased	$ 61.0