Goodwill and Other Intangible Assets, Goodwill (Details) $ in Millions	3 Months Ended
	Mar. 31, 2026 USD ($)
Goodwill
Goodwill, Beginning Balance	$ 10,575.4
Acquisition-related	6,988.7
Foreign currency translation	(21.2)
Goodwill, Ending Balance	17,542.9
Communications Solutions
Goodwill
Goodwill, Beginning Balance	3,858.6
Acquisition-related	6,983.5
Foreign currency translation	(1.5)
Goodwill, Ending Balance	10,840.6
Harsh Environment Solutions
Goodwill
Goodwill, Beginning Balance	4,270.2
Acquisition-related	3.9
Foreign currency translation	(5.0)
Goodwill, Ending Balance	4,269.1
Interconnect and Sensor Systems
Goodwill
Goodwill, Beginning Balance	2,446.6
Acquisition-related	1.3
Foreign currency translation	(14.7)
Goodwill, Ending Balance	$ 2,433.2