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, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Segment Reporting Information
Operating income	$ 648.8	$ 476.2	$ 1,238.6	$ 941.0
Stock-based compensation expense	(20.9)	(20.0)	(40.6)	(39.0)
Acquisition-related expenses	0.0	(55.4)	0.0	(55.4)
Other operating expenses	(17.3)	(15.0)	(33.6)	(29.0)
Interest expense	(30.5)	(29.1)	(58.6)	(57.7)
Other income (expense), net	2.3	0.0	4.0	(0.4)
Income from continuing operations before income taxes	620.6	447.1	1,184.0	882.9
Operating Segment
Segment Reporting Information
Operating income	687.0	566.6	1,312.8	1,064.4
Operating Segment \| Harsh Environment Solutions
Segment Reporting Information
Operating income	206.5	181.0	389.7	339.3
Operating Segment \| Communications Solutions
Segment Reporting Information
Operating income	303.0	235.1	585.6	439.6
Operating Segment \| Interconnect and Sensor Systems
Segment Reporting Information
Operating income	$ 177.5	$ 150.5	$ 337.5	$ 285.5

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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