Income Taxes Income Taxes (Tax Cuts and Jobs Act of 2017) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Nov. 03, 2018	Aug. 04, 2018	Nov. 03, 2018	Oct. 28, 2017	Feb. 03, 2018
Tax Cuts and Jobs Act of 2017 [Abstract]
Tax Cuts and Jobs Act of 2017 Estimated Discrete Net Income Tax Charges			$ 22.4		$ 19.9
Tax Cuts and Jobs Act of 2017 Measurement Period Adjustment	$ 0.4	$ 2.0	2.4
Tax Cuts And Jobs Act of 2017 Repatriation Tax			23.7
Undistributed Earnings of Foreign Subsidiaries	$ 385.8		385.8
Tax Cuts and Jobs Act of 2017 Provisional tax expense related to deferred tax remeasurement			$ 3.5
Effective Income Tax Rate Reconciliation, Percent			21.00%	35.00%
Tax Cuts and Jobs Act of 2017 Provisional state tax expense related to repatriation			$ 0.8
Tax Cuts and Jobs Act of 2017 Benefit From Decrease on Deferred Tax Liability on Unremitted Foreign Earnings			$ 5.6