Goodwill and Other Intangible Assets - Other Intangible Assets (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Assets subject to amortization, accumulated amortization	$ (1,752.6)	$ (1,386.6)
Intangible assets, cost	6,420.3	5,228.7
Intangible assets, net book value	4,667.7	3,842.1
Trade names
Finite-Lived Intangible Assets [Line Items]
Assets not subject to amortization	659.8	608.9
Customer related intangibles
Finite-Lived Intangible Assets [Line Items]
Assets subject to amortization, cost	4,955.4	3,926.8
Assets subject to amortization, accumulated amortization	(1,349.4)	(1,083.6)
Assets subject to amortization, net book value	3,606.0	2,843.2
Unpatented technology
Finite-Lived Intangible Assets [Line Items]
Assets subject to amortization, cost	613.0	504.0
Assets subject to amortization, accumulated amortization	(279.6)	(199.5)
Assets subject to amortization, net book value	333.4	304.5
Software
Finite-Lived Intangible Assets [Line Items]
Assets subject to amortization, cost	172.2	172.0
Assets subject to amortization, accumulated amortization	(111.5)	(93.2)
Assets subject to amortization, net book value	60.7	78.8
Patents and other protective rights
Finite-Lived Intangible Assets [Line Items]
Assets subject to amortization, cost	12.0	9.7
Assets subject to amortization, accumulated amortization	(8.0)	(7.5)
Assets subject to amortization, net book value	4.0	2.2
Trade names
Finite-Lived Intangible Assets [Line Items]
Assets subject to amortization, cost	7.9	7.3
Assets subject to amortization, accumulated amortization	(4.1)	(2.8)
Assets subject to amortization, net book value	$ 3.8	$ 4.5