Goodwill and Intangible Assets - Summary of Intangible Assets, Net (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Original Cost	$ 1,538.7	$ 1,401.1
Accumulated Amortization	(886.2)	(774.3)
Accumulated Impairment Losses	(62.0)	(60.4)
Carrying Value	590.5	566.4
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Original Cost	585.2	556.7
Accumulated Amortization	(386.8)	(359.1)
Accumulated Impairment Losses	(20.1)	(20.1)
Carrying Value	178.3	177.5
Developed technology
Finite-Lived Intangible Assets [Line Items]
Original Cost	779.5	698.0
Accumulated Amortization	(440.3)	(356.4)
Accumulated Impairment Losses	(2.6)	(2.6)
Carrying Value	336.6	339.0
IPRD
Finite-Lived Intangible Assets [Line Items]
Original Cost	64.7	64.1
Accumulated Amortization	0.0	0.0
Accumulated Impairment Losses	(24.1)	(22.5)
Carrying Value	40.6	41.6
Licenses
Finite-Lived Intangible Assets [Line Items]
Original Cost	30.0
Accumulated Amortization	0.0
Accumulated Impairment Losses	0.0
Carrying Value	30.0
Other intangibles
Finite-Lived Intangible Assets [Line Items]
Original Cost	79.3	82.3
Accumulated Amortization	(59.1)	(58.8)
Accumulated Impairment Losses	(15.2)	(15.2)
Carrying Value	$ 5.0	$ 8.3