Revenue - Schedule of Disaggregated Revenue by Business Group (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Disaggregation of Revenue [Line Items]
Net sales	$ 1,502.4	$ 1,442.6	$ 4,351.9	$ 4,294.2
Utility Solutions
Disaggregation of Revenue [Line Items]
Net sales	943.8	933.1	2,736.4	2,753.6
Utility Solutions | United States
Disaggregation of Revenue [Line Items]
Net sales	905.3	887.0	2,614.7	2,619.9
Utility Solutions | International
Disaggregation of Revenue [Line Items]
Net sales	38.5	46.1	121.7	133.7
Utility Solutions | Grid Infrastructure
Disaggregation of Revenue [Line Items]
Net sales	714.8	654.2	2,031.2	1,921.5
Utility Solutions | Grid Automation
Disaggregation of Revenue [Line Items]
Net sales	229.0	278.9	705.2	832.1
Electrical Solutions
Disaggregation of Revenue [Line Items]
Net sales	558.6	509.5	1,615.5	1,540.6
Electrical Solutions | United States
Disaggregation of Revenue [Line Items]
Net sales	484.2	433.5	1,405.5	1,315.6
Electrical Solutions | International
Disaggregation of Revenue [Line Items]
Net sales	74.4	76.0	210.0	225.0
Electrical Solutions | Electrical Products
Disaggregation of Revenue [Line Items]
Net sales	233.6	205.9	664.7	635.8
Electrical Solutions | Industrial
Disaggregation of Revenue [Line Items]
Net sales	325.0	303.6	950.8	883.6
Electrical Solutions | Retail and Builder
Disaggregation of Revenue [Line Items]
Net sales	$ 0.0	$ 0.0	$ 0.0	$ 21.2