Segment Information (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($) group	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($) group
Segment Reporting Information [Line Items]
Net Sales	$ 1,191.8	$ 949.2	$ 2,270.2	$ 2,039.5
Operating Income	$ 152.7	$ 131.5	$ 270.3	$ 250.3
Operating Income as a % of Net Sales	12.80%	13.90%	11.90%	12.30%
Electrical Solutions
Segment Reporting Information [Line Items]
Number of business groups | group		3		3
Net Sales	$ 602.9	$ 469.4	$ 1,149.1	$ 1,033.1
Operating Income	$ 76.3	$ 52.8	$ 129.3	$ 105.2
Operating Income as a % of Net Sales	12.70%	11.20%	11.30%	10.20%
Utility Solutions
Segment Reporting Information [Line Items]
Net Sales	$ 588.9	$ 479.8	$ 1,121.1	$ 1,006.4
Operating Income	$ 76.4	$ 78.7	$ 141.0	$ 145.1
Operating Income as a % of Net Sales	13.00%	16.40%	12.60%	14.40%