Condensed Consolidated Statements of Income (unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Income Statement [Abstract]
Net sales	$ 1,375.8	$ 1,316.2	$ 4,027.1	$ 3,728.3
Cost of goods sold	888.4	917.7	2,595.2	2,623.5
Gross profit	487.4	398.5	1,431.9	1,104.8
Selling & administrative expenses	211.1	194.9	619.0	567.7
Operating income	276.3	203.6	812.9	537.1
Interest expense, net	(7.8)	(12.1)	(26.7)	(37.9)
Pension charge (Note 13)	0.0	(1.5)	0.0	(5.9)
Other (expense) income, net	(3.5)	0.8	(12.4)	6.9
Total other expense	(11.3)	(12.8)	(39.1)	(36.9)
Income from continuing operations before income taxes	265.0	190.8	773.8	500.2
Provision for income taxes	63.0	38.8	180.2	107.3
Net income from continuing operations	202.0	152.0	593.6	392.9
Less: Net income from continuing operations attributable to noncontrolling interest	(1.9)	(1.7)	(4.8)	(4.5)
Net income from continuing operations attributable to Hubbell Incorporated	200.1	150.3	588.8	388.4
(Loss) Income from discontinued operations, net of tax (Note 2)	0.0	(11.2)	0.0	52.9
Net Income attributable to Hubbell Incorporated	$ 200.1	$ 139.1	$ 588.8	$ 441.3
Earnings per share:
Basic earnings per share from continuing operations (USD per share)	$ 3.72	$ 2.79	$ 10.96	$ 7.20
Basic earnings per share from discontinued operations (USD per share)	0	(0.21)	0	0.98
Basic earnings per share (USD per share)	3.72	2.58	10.96	8.18
Diluted earnings per share from continuing operations (USD per share)	3.70	2.78	10.89	7.16
Diluted earnings per share from discontinued operations (USD per share)	0	(0.21)	0	0.98
Diluted earnings per share (USD per share)	3.70	2.57	10.89	8.14
Cash dividends per common share (USD per share)	$ 1.12	$ 1.05	$ 3.36	$ 3.15