Long-lived Assets (Schedule of Changes in Carrying Amount of Goodwill) (Details) $ in Millions	6 Months Ended
Jun. 30, 2020 USD ($)
Goodwill [Roll Forward]
January 1, 2020	$ 14,052.1
Acquisitions and related adjustments	2.2
Reclassification to assets held for sale	(7,180.9)
Foreign currency translation adjustments and other	(494.2)
June 30, 2020	6,379.2
U.K./Ireland
Goodwill [Roll Forward]
January 1, 2020	7,965.4
Acquisitions and related adjustments	0.0
Reclassification to assets held for sale	(7,180.9)
Foreign currency translation adjustments and other	(512.0)
June 30, 2020	272.5
Switzerland
Goodwill [Roll Forward]
January 1, 2020	2,953.2
Acquisitions and related adjustments	2.8
Reclassification to assets held for sale	0.0
Foreign currency translation adjustments and other	60.3
June 30, 2020	3,016.3
Belgium
Goodwill [Roll Forward]
January 1, 2020	2,576.1
Acquisitions and related adjustments	(0.6)
Reclassification to assets held for sale	0.0
Foreign currency translation adjustments and other	(22.1)
June 30, 2020	2,553.4
Central and Eastern Europe
Goodwill [Roll Forward]
January 1, 2020	557.4
Acquisitions and related adjustments	0.0
Reclassification to assets held for sale	0.0
Foreign currency translation adjustments and other	(20.4)
June 30, 2020	$ 537.0

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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