Condensed Consolidated Statements of Income (unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Income Statement [Abstract]
Net sales	$ 1,256.0	$ 1,054.3	$ 2,412.1	$ 2,010.6
Cost of goods sold	872.8	756.0	1,705.8	1,450.1
Gross profit	383.2	298.3	706.3	560.5
Selling & administrative expenses	192.6	156.1	372.8	308.4
Operating income	190.6	142.2	333.5	252.1
Interest expense, net	(12.7)	(12.6)	(25.8)	(27.8)
Loss on disposition of business	0.0	(6.8)	0.0	(6.8)
Loss on extinguishment of debt	0.0	(16.8)	0.0	(16.8)
Pension charge	(4.4)	0.0	(4.4)	0.0
Other income, net	2.5	0.5	6.1	1.7
Total other expense	(14.6)	(35.7)	(24.1)	(49.7)
Income from continuing operations before income taxes	176.0	106.5	309.4	202.4
Provision for income taxes	38.9	16.9	68.5	38.1
Net income from continuing operations	137.1	89.6	240.9	164.3
Less: Net income from continuing operations attributable to noncontrolling interest	(1.5)	(0.8)	(2.8)	(2.2)
Net income from continuing operations attributable to Hubbell Incorporated	135.6	88.8	238.1	162.1
(Loss) income from discontinued operations, net of tax (Note 2)	(13.6)	7.0	64.1	11.4
Net Income attributable to Hubbell Incorporated	$ 122.0	$ 95.8	$ 302.2	$ 173.5
Earnings per share:
Basic earnings per share from continuing operations (USD per share)	$ 2.52	$ 1.63	$ 4.41	$ 2.97
Basic earnings per share from discontinued operations (USD per share)	(0.25)	0.13	1.19	0.22
Basic earnings per share (USD per share)	2.27	1.76	5.60	3.19
Diluted earnings per share from continuing operations (USD per share)	2.51	1.62	4.39	2.95
Diluted earnings per share from discontinued operations (USD per share)	(0.25)	0.12	1.18	0.21
Diluted earnings per share (USD per share)	2.26	1.74	5.57	3.16
Cash dividends per common share (USD per share)	$ 1.05	$ 0.98	$ 2.10	$ 1.96