Condensed Consolidated Statements of Income (unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
Net sales	$ 1,156.1	$ 956.3
Cost of goods sold	833.0	694.1
Gross profit	323.1	262.2
Selling & administrative expenses	180.2	152.3
Operating income	142.9	109.9
Interest expense, net	(13.1)	(15.2)
Other income, net	3.6	1.2
Total other expense	(9.5)	(14.0)
Income from continuing operations before income taxes	133.4	95.9
Provision for income taxes	29.6	21.2
Net income from continuing operations	103.8	74.7
Less: Net income from continuing operations attributable to noncontrolling interest	(1.3)	(1.4)
Net income from continuing operations attributable to Hubbell Incorporated	102.5	73.3
Income from discontinued operations, net of taxes	77.7	4.4
Net Income attributable to Hubbell incorporated	$ 180.2	$ 77.7
Earnings per share:
Basic earnings per share from continuing operations (USD per share)	$ 1.89	$ 1.34
Basic earnings per share from discontinued operations (USD per share)	1.43	0.09
Basic earnings per share (USD per share)	3.32	1.43
Diluted earnings per share from continuing operations (USD per share)	1.88	1.33
Diluted earnings per share from discontinued operations (USD per share)	1.43	0.09
Diluted earnings per share (USD per share)	3.31	1.42
Cash dividends per common share (USD per share)	$ 1.05	$ 0.98