Reportable Business Segments, Reconciliation of Segment Operating Income to Consolidated Income Before Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Segment Reporting Information
Operating income	$ 619.9	$ 648.8	$ 1,211.6	$ 1,238.6
Stock-based compensation expense	(23.8)	(20.9)	(45.5)	(40.6)
Acquisition-related expenses	(4.0)	0.0	(9.4)	0.0
Other operating expenses	(17.0)	(17.3)	(33.9)	(33.6)
Interest expense	(35.0)	(30.5)	(71.0)	(58.6)
Gain on bargain purchase acquisition	5.4	0.0	5.4	0.0
Other income (expense), net	5.6	2.3	9.8	4.0
Income before income taxes	595.9	620.6	1,155.8	1,184.0
Operating Segment
Segment Reporting Information
Operating income	664.7	687.0	1,300.4	1,312.8
Operating Segment | Harsh Environment Solutions
Segment Reporting Information
Operating income	240.3	206.5	466.6	389.7
Operating Segment | Communications Solutions
Segment Reporting Information
Operating income	238.5	303.0	469.1	585.6
Operating Segment | Interconnect and Sensor Systems
Segment Reporting Information
Operating income	$ 185.9	$ 177.5	$ 364.7	$ 337.5