Goodwill and Other Intangibles - Summary of Intangible Assets (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Gross	$ 1,570.1	$ 1,577.5
Accumulated Amortization	(603.3)	(570.9)
Net	966.8	1,006.6
Indefinite-lived trademarks	295.9	295.9
Intangible assets, gross	1,866.0	1,873.4
Intangible assets, net	1,262.7	1,302.5
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross	1,107.0	1,114.3
Accumulated Amortization	(383.0)	(362.5)
Net	724.0	751.8
Developed technology
Finite-Lived Intangible Assets [Line Items]
Gross	330.2	330.0
Accumulated Amortization	(152.1)	(144.8)
Net	178.1	185.2
Capitalized software
Finite-Lived Intangible Assets [Line Items]
Gross	94.1	94.2
Accumulated Amortization	(47.8)	(44.3)
Net	46.3	49.9
Trademarks
Finite-Lived Intangible Assets [Line Items]
Gross	38.8	39.0
Accumulated Amortization	(20.4)	(19.3)
Net	$ 18.4	$ 19.7

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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