Revenue - Schedule of Disaggregated Revenue by Business Group (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Disaggregation of Revenue [Line Items]
Net sales	$ 1,711.8	$ 1,484.3	$ 3,228.5	$ 2,849.5
Utility Solutions
Disaggregation of Revenue [Line Items]
Net sales	1,025.8	935.5	1,974.7	1,792.6
Utility Solutions | United States
Disaggregation of Revenue [Line Items]
Net sales	989.4	891.3	1,900.2	1,709.4
Utility Solutions | International
Disaggregation of Revenue [Line Items]
Net sales	36.4	44.2	74.5	83.2
Utility Solutions | Grid Infrastructure
Disaggregation of Revenue [Line Items]
Net sales	785.5	698.7	1,512.6	1,316.4
Utility Solutions | Grid Automation
Disaggregation of Revenue [Line Items]
Net sales	240.3	236.8	462.1	476.2
Electrical Solutions
Disaggregation of Revenue [Line Items]
Net sales	686.0	548.8	1,253.8	1,056.9
Electrical Solutions | United States
Disaggregation of Revenue [Line Items]
Net sales	608.4	478.5	1,104.2	921.3
Electrical Solutions | International
Disaggregation of Revenue [Line Items]
Net sales	77.6	70.3	149.6	135.6
Electrical Solutions | Electrical Products
Disaggregation of Revenue [Line Items]
Net sales	275.6	225.4	507.8	431.1
Electrical Solutions | Industrial
Disaggregation of Revenue [Line Items]
Net sales	$ 410.4	$ 323.4	$ 746.0	$ 625.8