Reportable Business Segments, Reconciliation of Segment Operating Income to Consolidated Income Before Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Segment Reporting Information
Operating income	$ 681.1	$ 571.2	$ 1,919.7	$ 1,512.2
Stock-based compensation expense	(23.6)	(21.2)	(64.2)	(60.2)
Acquisition-related expenses	(12.0)	0.0	(12.0)	(55.4)
Other operating expenses	(17.3)	(15.5)	(50.9)	(44.5)
Interest expense	(32.8)	(29.0)	(91.3)	(86.7)
Other income (expense), net	2.6	0.0	6.6	(0.3)
Income from continuing operations before income taxes	650.9	542.2	1,835.0	1,425.2
Operating Segment
Segment Reporting Information
Operating income	734.0	607.9	2,046.8	1,672.3
Operating Segment | Harsh Environment Solutions
Segment Reporting Information
Operating income	207.1	184.7	596.8	524.0
Operating Segment | Communications Solutions
Segment Reporting Information
Operating income	341.6	276.7	927.2	716.3
Operating Segment | Interconnect and Sensor Systems
Segment Reporting Information
Operating income	$ 185.3	$ 146.5	$ 522.8	$ 432.0