Condensed Consolidated Statements of Income (unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Income Statement [Abstract]
Net sales	$ 1,502.4	$ 1,442.6	$ 4,351.9	$ 4,294.2
Cost of goods sold	958.1	936.6	2,812.9	2,840.8
Gross profit	544.3	506.0	1,539.0	1,453.4
Selling & administrative expenses	213.7	193.3	641.7	620.0
Operating income	330.6	312.7	897.3	833.4
Interest expense, net	(13.6)	(18.7)	(41.9)	(59.6)
Loss on disposition of business	0.0	0.0	(0.4)	(5.3)
Other expense, net	(5.9)	(5.6)	(17.4)	(7.5)
Total other expense	(19.5)	(24.3)	(59.7)	(72.4)
Income before income taxes	311.1	288.4	837.6	761.0
Provision for income taxes	54.4	60.6	170.9	175.7
Net income	256.7	227.8	666.7	585.3
Less: Net income attributable to noncontrolling interest	(1.2)	(1.6)	(3.8)	(4.5)
Net income attributable to Hubbell Incorporated	$ 255.5	$ 226.2	$ 662.9	$ 580.8
Earnings per share:
Basic earnings per share (USD per share)	$ 4.80	$ 4.21	$ 12.42	$ 10.80
Diluted earnings per share (USD per share)	$ 4.77	$ 4.18	$ 12.35	$ 10.73