New Accounting Pronouncements (Details) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	May 05, 2018	Feb. 03, 2018	May 05, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Excess tax benefit	$ 8.2	$ 10.0	$ 18.2
Accounting Standards Update 2016-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Excess tax benefit from share-based compensation, operating activities		(26.0)
Excess tax benefit from share-based compensation, financing activities	$ 26.0	$ 26.0
Weighted average number of shares outstanding, increase during period (in Shares)		1.0