v3.10.0.1
Long-lived Assets (Schedule of Changes in Carrying Amount of Goodwill) (Details)
$ in Millions
6 Months Ended
Jun. 30, 2018
USD ($)
Goodwill [Roll Forward]  
January 1, 2018 $ 14,354.1
June 30, 2018 13,999.2
Operating Segments  
Goodwill [Roll Forward]  
January 1, 2018 14,354.1
Acquisitions and related adjustments 20.1
Foreign currency translation adjustments (375.0)
June 30, 2018 13,999.2
Operating Segments | U.K./Ireland  
Goodwill [Roll Forward]  
January 1, 2018 8,134.1
Acquisitions and related adjustments 0.0
Foreign currency translation adjustments (199.7)
June 30, 2018 7,934.4
Operating Segments | Belgium  
Goodwill [Roll Forward]  
January 1, 2018 2,681.7
Acquisitions and related adjustments 20.1
Foreign currency translation adjustments (79.6)
June 30, 2018 2,622.2
Operating Segments | Switzerland  
Goodwill [Roll Forward]  
January 1, 2018 2,931.3
Acquisitions and related adjustments 0.0
Foreign currency translation adjustments (54.2)
June 30, 2018 2,877.1
Operating Segments | Central and Eastern Europe  
Goodwill [Roll Forward]  
January 1, 2018 607.0
Acquisitions and related adjustments 0.0
Foreign currency translation adjustments (41.5)
June 30, 2018 $ 565.5