Condensed Consolidated Statements of Income (unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Income Statement [Abstract]
Net sales	$ 1,316.2	$ 1,083.4	$ 3,728.3	$ 3,094.0
Cost of goods sold	917.7	782.3	2,623.5	2,232.4
Gross profit	398.5	301.1	1,104.8	861.6
Selling & administrative expenses	194.9	155.2	567.7	463.6
Operating income	203.6	145.9	537.1	398.0
Interest expense, net	(12.1)	(13.6)	(37.9)	(41.4)
Loss on disposition of business	0.0	(0.1)	0.0	(6.9)
Loss on extinguishment of debt	0.0	0.0	0.0	(16.8)
Pension charge (Note 13)	(1.5)	0.0	(5.9)	0.0
Other income, net	0.8	0.8	6.9	2.5
Total other expense	(12.8)	(12.9)	(36.9)	(62.6)
Income from continuing operations before income taxes	190.8	133.0	500.2	335.4
Provision for income taxes	38.8	27.5	107.3	65.6
Net income from continuing operations	152.0	105.5	392.9	269.8
Less: Net income from continuing operations attributable to noncontrolling interest	(1.7)	(2.1)	(4.5)	(4.3)
Net income from continuing operations attributable to Hubbell Incorporated	150.3	103.4	388.4	265.5
(Loss) income from discontinued operations, net of tax (Note 2)	(11.2)	5.0	52.9	16.4
Net Income attributable to Hubbell Incorporated	$ 139.1	$ 108.4	$ 441.3	$ 281.9
Earnings per share:
Basic earnings per share from continuing operations (USD per share)	$ 2.79	$ 1.89	$ 7.20	$ 4.88
Basic earnings per share from discontinued operations (USD per share)	(0.21)	0.10	0.98	0.30
Basic earnings per share (USD per share)	2.58	1.99	8.18	5.18
Diluted earnings per share from continuing operations (USD per share)	2.78	1.88	7.16	4.84
Diluted earnings per share from discontinued operations (USD per share)	(0.21)	0.10	0.98	0.30
Diluted earnings per share (USD per share)	2.57	1.98	8.14	5.14
Cash dividends per common share (USD per share)	$ 1.05	$ 0.98	$ 3.15	$ 2.94