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Goodwill and Other Assets (Textuals) (Details)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2020
USD ($)
Jun. 30, 2019
USD ($)
Jun. 30, 2020
USD ($)
Jun. 30, 2019
USD ($)
Dec. 31, 2019
USD ($)
Number of Reportable Segments     3    
Amortization of internally-developed software $ 7.3 $ 8.3 $ 14.5 $ 16.9  
Amortization 33.3 $ 36.5 66.5 $ 73.6  
Rest of World Retail Reporting Unit [Member]          
Reporting Unit, Amount of Fair Value in Excess of Carrying Amount $ 0.0   $ 0.0   $ 0.0