Segment Information (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($) group	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($) group
Segment Reporting Information [Line Items]
Net Sales	$ 1,213.6	$ 1,108.6	$ 3,483.8	$ 3,148.1
Operating Income	$ 155.3	$ 162.9	$ 425.6	$ 413.2
Operating Income as a % of Net Sales	12.80%	14.70%	12.20%	13.10%
Electrical Solutions
Segment Reporting Information [Line Items]
Number of business groups | group		3		3
Net Sales	$ 611.9	$ 551.0	$ 1,761.0	$ 1,584.1
Operating Income	$ 72.0	$ 65.9	$ 201.3	$ 171.1
Operating Income as a % of Net Sales	11.80%	12.00%	11.40%	10.80%
Utility Solutions
Segment Reporting Information [Line Items]
Net Sales	$ 601.7	$ 557.6	$ 1,722.8	$ 1,564.0
Operating Income	$ 83.3	$ 97.0	$ 224.3	$ 242.1
Operating Income as a % of Net Sales	13.80%	17.40%	13.00%	15.50%