Acquisitions - Advanced Sterilization Products Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions		6 Months Ended
	Apr. 01, 2019	Jun. 26, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
Goodwill		$ 8,297.7	$ 8,399.3
Prepaid acquisition asset related to remaining Non-Principal Countries		30.6
Acquisitions, ASP
Business Acquisition [Line Items]
Inventories		178.7
Property, plant and equipment		47.5
Goodwill		1,436.8
Other intangible assets, primarily customer relationships, trade names and technology		1,123.5
Other assets and liabilities, net		(79.6)
Total consideration allocated to Principal Countries and closed Non-Principal Countries		2,706.9
Prepaid acquisition asset related to remaining Non-Principal Countries		30.6
Net cash consideration	$ 2,700.0	$ 2,737.5