Goodwill and Other Intangible Assets, net - Other Intangibles and Amortization (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Other intangible assets
Accumulated Amortization	$ (695.7)	$ (560.6)
Other intangible assets, net
Other intangible assets, Acquired Cost	1,730.5	1,701.2
Other intangible assets, net	$ 1,034.8	1,140.6
Useful life of finite lived intangible assets	8 years 8 months 12 days
Estimated amortization expense
2021	$ 118.9
2022	103.1
2023	97.4
2024	88.3
2025	85.2
Thereafter	303.3
Trade names
Assets not subject to amortization:
Indefinite-lived intangible assets	238.6	242.7
Customer relationships
Other intangible assets
Acquired Cost	1,060.6	1,054.4
Accumulated Amortization	(436.4)	(354.9)
Net Book Value	$ 624.2	699.5
Other intangible assets, net
Useful life of finite lived intangible assets	9 years 1 month 6 days
Technology and intellectual property
Other intangible assets
Acquired Cost	$ 313.6	304.1
Accumulated Amortization	(208.9)	(167.0)
Net Book Value	$ 104.7	137.1
Other intangible assets, net
Useful life of finite lived intangible assets	5 years 9 months 18 days
Trade names and other
Other intangible assets
Acquired Cost	$ 117.7	100.0
Accumulated Amortization	(50.4)	(38.7)
Net Book Value	$ 67.3	$ 61.3
Other intangible assets, net
Useful life of finite lived intangible assets	9 years 10 months 24 days