Reportable Business Segments, Net sales by segment (Details) $ in Millions		3 Months Ended		6 Months Ended
	Jan. 01, 2022 segment entity	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($) segment	Jun. 30, 2021 USD ($)
Segment reporting information
Number of reportable business segments | segment	3			3
Number of segment managers | entity	3
Net sales		$ 3,136.8	$ 2,653.9	$ 6,088.6	$ 5,031.0
Harsh Environment Solutions
Segment reporting information
Net sales		790.4	696.3	1,518.0	1,324.3
Communications Solutions
Segment reporting information
Net sales		1,378.5	1,115.3	2,698.6	2,143.3
Interconnect and Sensor Systems
Segment reporting information
Net sales		967.9	842.3	1,872.0	1,563.4
Communications Solutions, Interconnect and Sensor Systems, Harsh Environment Solutions [Member]
Segment reporting information
Number of reportable business segments in which businesses previously reported in the Interconnect Products and Assemblies segment have now been aligned to. | segment	1
Operating Segment
Segment reporting information
Net sales		3,136.8	2,653.9	6,088.6	5,031.0
Operating Segment | Harsh Environment Solutions
Segment reporting information
Net sales		790.4	696.3	1,518.0	1,324.3
Operating Segment | Communications Solutions
Segment reporting information
Net sales		1,378.5	1,115.3	2,698.6	2,143.3
Operating Segment | Interconnect and Sensor Systems
Segment reporting information
Net sales		967.9	842.3	1,872.0	1,563.4
Inter-Segment
Segment reporting information
Net sales		44.9	42.1	84.8	84.9
Inter-Segment | Harsh Environment Solutions
Segment reporting information
Net sales		19.8	17.1	35.3	32.9
Inter-Segment | Communications Solutions
Segment reporting information
Net sales		20.8	18.0	40.1	38.8
Inter-Segment | Interconnect and Sensor Systems
Segment reporting information
Net sales		$ 4.3	$ 7.0	$ 9.4	$ 13.2