Reportable Business Segments, Net sales by segment (Details) $ in Millions		3 Months Ended
	Jan. 01, 2022 segment entity	Mar. 31, 2022 USD ($) segment	Mar. 31, 2021 USD ($)
Segment reporting information
Number of reportable business segments | segment	3	3
Number of segment managers | entity	3
Net sales		$ 2,951.9	$ 2,377.1
Harsh Environment Solutions
Segment reporting information
Net sales		727.6	628.0
Communications Solutions
Segment reporting information
Net sales		1,320.1	1,028.0
Interconnect and Sensor Systems
Segment reporting information
Net sales		904.2	721.1
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		2,951.9	2,377.1
Operating Segment | Harsh Environment Solutions
Segment reporting information
Net sales		727.6	628.0
Operating Segment | Communications Solutions
Segment reporting information
Net sales		1,320.1	1,028.0
Operating Segment | Interconnect and Sensor Systems
Segment reporting information
Net sales		904.2	721.1
Inter-Segment
Segment reporting information
Net sales		39.9	42.8
Inter-Segment | Harsh Environment Solutions
Segment reporting information
Net sales		15.5	15.8
Inter-Segment | Communications Solutions
Segment reporting information
Net sales		19.3	20.8
Inter-Segment | Interconnect and Sensor Systems
Segment reporting information
Net sales		$ 5.1	$ 6.2