Condensed Consolidated Statements of Income (unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Income Statement [Abstract]
Net sales	$ 1,365.9	$ 1,256.0	$ 2,651.3	$ 2,412.1
Cost of goods sold	869.7	872.8	1,706.8	1,705.8
Gross profit	496.2	383.2	944.5	706.3
Selling & administrative expenses	208.4	192.6	407.9	372.8
Operating income	287.8	190.6	536.6	333.5
Interest expense, net	(9.2)	(12.7)	(18.9)	(25.8)
Pension charge (Note 13)	0.0	(4.4)	0.0	(4.4)
Other (expense) income, net	(4.8)	2.5	(8.9)	6.1
Total other expense	(14.0)	(14.6)	(27.8)	(24.1)
Income from continuing operations before income taxes	273.8	176.0	508.8	309.4
Provision for income taxes	65.6	38.9	117.2	68.5
Net income from continuing operations	208.2	137.1	391.6	240.9
Less: Net income from continuing operations attributable to noncontrolling interest	(1.4)	(1.5)	(2.9)	(2.8)
Net income from continuing operations attributable to Hubbell Incorporated	206.8	135.6	388.7	238.1
(Loss) Income from discontinued operations, net of tax (Note 2)	0.0	(13.6)	0.0	64.1
Net Income attributable to Hubbell Incorporated	$ 206.8	$ 122.0	$ 388.7	$ 302.2
Earnings per share:
Basic earnings per share from continuing operations (USD per share)	$ 3.85	$ 2.52	$ 7.24	$ 4.41
Basic earnings per share from discontinued operations (USD per share)	0	(0.25)	0	1.19
Basic earnings per share (USD per share)	3.85	2.27	7.24	5.60
Diluted earnings per share from continuing operations (USD per share)	3.82	2.51	7.19	4.39
Diluted earnings per share from discontinued operations (USD per share)	0	(0.25)	0	1.18
Diluted earnings per share (USD per share)	3.82	2.26	7.19	5.57
Cash dividends per common share (USD per share)	$ 1.12	$ 1.05	$ 2.24	$ 2.10