Shareholders' Equity Class of Stock (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended
	May 05, 2018	Feb. 03, 2018	Apr. 29, 2017
Class of Stock [Line Items]
Preferred Stock, Shares Authorized	100,000
Preferred Stock, Par or Stated Value Per Share	$ 0
Preferred Stock, Shares Issued	0
Dividends Payable, Date Declared	May 30, 2018
Common Stock, Dividends, Per Share, Declared	$ 0.25
Dividends Payable, Date to be Paid	Jul. 05, 2018
Dividends Payable, Date of Record	Jun. 21, 2018
Stock Repurchase Program, Authorized Amount	$ 500.0
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 524.1	$ 33.5
Class A Common Shares
Class of Stock [Line Items]
Common Stock, Shares Authorized	250,000	250,000	250,000
Common Stock, Shares, Issued	85,561	85,385	85,126
Common Stock, Shares, Outstanding	72,470	72,294	72,535
Class B Common Shares
Class of Stock [Line Items]
Common Stock, Shares Authorized	100,000	100,000	100,000
Common Stock, Shares, Issued	7,733	7,733	7,733
Common Stock, Shares, Outstanding	7,733	7,733	7,733
Treasury Stock [Member]
Class of Stock [Line Items]
Common Stock, Shares, Outstanding	13,091	13,091	12,591