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Fair Value Measurements (Details 2) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Sep. 28, 2019
Sep. 29, 2018
Sep. 28, 2019
Sep. 29, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Cumulative adjustment from adoption of new accounting standards     $ (164.5) $ (5.1)
Property, Plant and Equipment [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Fair Value as of Impairment Date $ 5.5 $ 0.0 5.5 0.0
Impairment of Long-Lived Assets 1.7 $ 9.8 2.6 $ 11.1
Operating Lease, Right-of-Use Asset [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Fair Value as of Impairment Date 19.2   112.1  
Impairment of Long-Lived Assets $ 4.4   229.8  
Accounting Standards Update 2016-02 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Cumulative adjustment from adoption of new accounting standards     169.4  
Accounting Standards Update 2016-02 [Member] | Operating Lease, Right-of-Use Asset [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Impairment of Long-Lived Assets     $ 225.1