Goodwill and Intangible Assets Intangible Assets (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2016	Dec. 31, 2017
Details of intangible assets, other than goodwill:
Goodwill	$ 8,442.7			$ 8,405.5
Amortization of Intangible Assets	56.6	$ 55.2
Restructuring charges	(314.8)	$ 6.7
Intangible assets subject to amortization:
Total Gross	14,956.4			14,958.8
Accumulated amortization	(718.8)			(662.3)
Total Net	14,237.6			14,296.5
Brands [Member]
Intangible assets subject to amortization:
Finite-Lived Intangible Assets, Gross	5,200.0			5,215.3
Accumulated amortization	(567.2)			(516.0)
Net	4,632.8			4,699.3
Indefinite-lived intangible assets	$ 8,248.2			8,216.6
Brands [Member] | Minimum [Member]
Intangible assets subject to amortization:
Useful life	10 years		10 years
Brands [Member] | Maximum [Member]
Intangible assets subject to amortization:
Useful life	50 years		50 years
License agreements and distribution rights
Intangible assets subject to amortization:
Finite-Lived Intangible Assets, Gross	$ 236.7			236.3
Accumulated amortization	(104.9)			(103.9)
Net	$ 131.8			132.4
License agreements and distribution rights | Minimum [Member]
Intangible assets subject to amortization:
Useful life	15 years		15 years
License agreements and distribution rights | Maximum [Member]
Intangible assets subject to amortization:
Useful life	28 years		28 years
Distribution Networks [Member]
Intangible assets subject to amortization:
Indefinite-lived intangible assets	$ 784.2			804.7
Other Intangible Assets [Member]
Intangible assets subject to amortization:
Finite-Lived Intangible Assets, Gross	149.7			148.3
Accumulated amortization	(46.7)			(42.4)
Net	103.0			105.9
Indefinite-lived intangible assets	$ 337.6			337.6
Other Intangible Assets [Member] | Minimum [Member]
Intangible assets subject to amortization:
Useful life	2 years		2 years
Other Intangible Assets [Member] | Maximum [Member]
Intangible assets subject to amortization:
Useful life	40 years		40 years
Canada [Member]
Details of intangible assets, other than goodwill:
Goodwill	$ 908.3			932.1
Europe [Member]
Details of intangible assets, other than goodwill:
Goodwill	$ 1,599.1			$ 1,538.0