Reportable Business Segments, Reconciliation of Segment Operating Income to Consolidated Income Before Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Segment Reporting Information
Operating income	$ 591.7	$ 589.8
Stock-based compensation expense	(21.7)	(19.7)
Acquisition-related expenses	(5.4)	0.0
Other operating expenses	(16.9)	(16.2)
Interest expense	(35.9)	(28.1)
Other income (expense), net	4.1	1.7
Income before income taxes	559.9	563.4
Operating Segment
Segment Reporting Information
Operating income	635.7	625.7
Operating Segment | Harsh Environment Solutions
Segment Reporting Information
Operating income	226.3	183.2
Operating Segment | Communications Solutions
Segment Reporting Information
Operating income	230.6	282.5
Operating Segment | Interconnect and Sensor Systems
Segment Reporting Information
Operating income	$ 178.8	$ 160.0