Acquisitions and Divestitures - Advanced Sterilization Products Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions		9 Months Ended
	Apr. 01, 2019	Sep. 25, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
Goodwill		$ 8,341.0	$ 8,399.3
Prepaid acquisition asset related to remaining Non-Principal Countries		22.3
Acquisitions, ASP
Business Acquisition [Line Items]
Inventories		189.6
Property, plant and equipment		48.2
Goodwill		1,437.1
Other intangible assets, primarily customer relationships, trade names and technology		1,123.5
Other assets and liabilities, net		(78.0)
Total consideration allocated to Principal Countries and closed Non-Principal Countries		2,720.4
Prepaid acquisition asset related to remaining Non-Principal Countries		22.3
Net cash consideration	$ 2,700.0	$ 2,742.7