Goodwill and Intangible Assets - Schedule of Changes in the Carrying Value of Goodwill (Details) $ in Millions	9 Months Ended
	Oct. 01, 2023 USD ($)
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 7,873.0
Current year acquisitions	55.9
Foreign currency changes and other	(29.1)
Goodwill, ending balance	7,899.8
Digital Imaging
Goodwill [Roll Forward]
Goodwill, beginning balance	6,780.4
Current year acquisitions	55.9
Foreign currency changes and other	(27.5)
Goodwill, ending balance	6,808.8
Instrumentation
Goodwill [Roll Forward]
Goodwill, beginning balance	913.2
Current year acquisitions	0.0
Foreign currency changes and other	(1.9)
Goodwill, ending balance	911.3
Aerospace and Defense Electronics
Goodwill [Roll Forward]
Goodwill, beginning balance	161.8
Current year acquisitions	0.0
Foreign currency changes and other	0.3
Goodwill, ending balance	162.1
Engineered Systems
Goodwill [Roll Forward]
Goodwill, beginning balance	17.6
Current year acquisitions	0.0
Foreign currency changes and other	0.0
Goodwill, ending balance	$ 17.6