Consolidated Statement of Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Statement [Abstract]
Net sales	$ 5,844.6	$ 5,628.5	$ 5,372.9
Cost of goods sold	3,780.5	3,722.9	3,495.9
Gross profit	2,064.1	1,905.6	1,877.0
Selling & administrative expenses	855.3	812.5	849.6
Operating income	1,208.8	1,093.1	1,027.4
Loss on disposition of business (Note 3)	(0.4)	(5.3)	0.0
Interest expense, net	(64.1)	(73.8)	(36.7)
Other expense, net	(25.2)	(7.2)	(18.5)
Total other expense	(89.7)	(86.3)	(55.2)
Income before income taxes	1,119.1	1,006.8	972.2
Provision for income taxes	227.2	222.1	214.6
Net income	891.9	784.7	757.6
Less: Net income attributable to noncontrolling interest	(4.8)	(5.7)	(6.2)
Net income attributable to Hubbell Incorporated	$ 887.1	$ 779.0	$ 751.4
Earnings per share
Basic earnings per share (USD per share)	$ 16.63	$ 14.49	$ 13.98
Diluted earnings per share (USD per share)	$ 16.54	$ 14.39	$ 13.89