Shareholders' Equity (Details Textual) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended	12 Months Ended			170 Months Ended
	Oct. 31, 2008	Mar. 03, 2018	Mar. 04, 2017	Feb. 27, 2016	Mar. 03, 2018
Class of Stock [Line Items]
Junior preferred stock, shares		200,000			200,000
Junior preferred stock par value		$ 1.00			$ 1.00
Share repurchases, shares		(702,000)	250,000	575,000
Stock Based Compensation Plans
Class of Stock [Line Items]
Adjustments Related to Tax Withholding for Share-based Compensation		$ 3.0	$ 2.6	$ 5.1
Share Repurchase Program
Class of Stock [Line Items]
Increase in authorized shares under the share repurchase program	1,000,000
Share repurchases, shares		702,299	250,001	575,000	4,009,932
Share repurchases, value		$ 33.7	$ 10.8	$ 24.9	$ 106.0
Remaining shares authorized to be repurchased		1,240,068,000			1,240,068,000