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Recently Issued Accounting Standards Recently Issued Accounting Standards (Details) - USD ($)
$ in Millions
3 Months Ended
Jul. 01, 2017
Jul. 02, 2016
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Income tax benefit (provision) $ (27.3) $ 10.9
Net cash provided by operating activities 334.2 242.9
Net cash used in financing activities $ (61.0) (186.4)
Historical Licensing Business Percentage of Total Revenue 2.00%  
Accounting Standards Update 2016-09 [Member]    
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Income tax benefit (provision) $ (10.0)  
Net cash provided by operating activities   0.3
Net cash used in financing activities   $ (0.3)