Goodwill and Other Intangible Assets (Other Intangible Assets) (Details) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Accumulated amortization	$ (1,471.8)	$ (1,386.6)
Intangible assets, gross (excluding goodwill)	5,238.6	5,228.7
Intangible assets, net (excluding goodwill)	3,766.8	3,842.1
Trade names
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets (excluding goodwill)	609.6	608.9
Customer related intangibles
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	3,931.7	3,926.8
Accumulated amortization	(1,144.4)	(1,083.6)
Finite-lived intangible assets, net	2,787.3	2,843.2
Unpatented technology
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	505.0	504.0
Accumulated amortization	(218.6)	(199.5)
Finite-lived intangible assets, net	286.4	304.5
Software
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	172.3	172.0
Accumulated amortization	(97.9)	(93.2)
Finite-lived intangible assets, net	74.4	78.8
Patents and other protective rights
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	12.1	9.7
Accumulated amortization	(7.8)	(7.5)
Finite-lived intangible assets, net	4.3	2.2
Trade names
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	7.9	7.3
Accumulated amortization	(3.1)	(2.8)
Finite-lived intangible assets, net	$ 4.8	$ 4.5