Goodwill and Intangible Assets - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 27, 2019	Sep. 28, 2018	Sep. 27, 2019	Sep. 28, 2018	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 1,542.0		$ 1,542.0		$ 1,401.1
Amortization of acquisition-related intangible assets	29.9	$ 28.0	83.1	$ 83.3
Intangible assets, net	622.6		622.6		566.4
IPRD
Finite-Lived Intangible Assets [Line Items]
Intangible impairment			1.6
Finite-Lived Intangible Assets, Gross	83.4		83.4		64.1
Intangible assets, net	$ 59.3		$ 59.3		$ 41.6