Condensed Consolidated Statements of Income (unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Income Statement [Abstract]
Net sales	$ 1,872.5	$ 1,502.4	$ 5,101.0	$ 4,351.9
Cost of goods sold	1,184.3	958.1	3,294.5	2,812.9
Gross profit	688.2	544.3	1,806.5	1,539.0
Selling & administrative expenses	279.5	213.7	785.4	641.7
Operating income	408.7	330.6	1,021.1	897.3
Interest expense, net	(58.0)	(13.6)	(119.1)	(41.9)
Loss on disposition of business	0.0	0.0	0.0	(0.4)
Other expense, net	(5.4)	(5.9)	(16.6)	(17.4)
Total other expense, net	(63.4)	(19.5)	(135.7)	(59.7)
Income before income taxes	345.3	311.1	885.4	837.6
Provision for income taxes	80.7	54.4	195.6	170.9
Net income	264.6	256.7	689.8	666.7
Less: Net income attributable to noncontrolling interest	(2.1)	(1.2)	(5.1)	(3.8)
Net income attributable to Hubbell Incorporated	$ 262.5	$ 255.5	$ 684.7	$ 662.9
Earnings per share:
Basic earnings per share (USD per share)	$ 4.96	$ 4.80	$ 12.92	$ 12.42
Diluted earnings per share (USD per share)	$ 4.94	$ 4.77	$ 12.86	$ 12.35