Reportable Business Segments, Net sales by segment (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Segment reporting information
Net sales	$ 4,038.8	$ 3,199.2	$ 10,904.9	$ 9,227.2
Harsh Environment Solutions
Segment reporting information
Net sales	1,193.5	887.3	3,155.5	2,630.4
Communications Solutions
Segment reporting information
Net sales	1,685.5	1,279.2	4,395.8	3,567.6
Interconnect and Sensor Systems
Segment reporting information
Net sales	1,159.8	1,032.7	3,353.6	3,029.2
Operating Segment | Harsh Environment Solutions
Segment reporting information
Net sales	1,193.5	887.3	3,155.5	2,630.4
Operating Segment | Communications Solutions
Segment reporting information
Net sales	1,685.5	1,279.2	4,395.8	3,567.6
Operating Segment | Interconnect and Sensor Systems
Segment reporting information
Net sales	1,159.8	1,032.7	3,353.6	3,029.2
Inter-Segment
Segment reporting information
Net sales	44.2	38.1	121.8	121.4
Inter-Segment | Harsh Environment Solutions
Segment reporting information
Net sales	23.7	21.5	65.3	69.3
Inter-Segment | Communications Solutions
Segment reporting information
Net sales	12.6	12.6	37.2	38.7
Inter-Segment | Interconnect and Sensor Systems
Segment reporting information
Net sales	$ 7.9	$ 4.0	$ 19.3	$ 13.4