Condensed Consolidated Statements of Comprehensive Income (unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 215.2	$ 208.2	$ 364.3	$ 391.6
Other comprehensive income (loss):
Foreign currency translation adjustments	(19.0)	5.4	(30.9)	13.3
Defined benefit pension and post-retirement plans, net of taxes of $(0.6) and $(0.6)	1.7	2.0	4.2	3.4
Unrealized gain (loss) on investments, net of taxes of $0.0 and $0.1	(0.1)	(0.3)	(0.4)	0.0
Unrealized gain (loss) on cash flow hedges, net of taxes of $(0.1) and $0.2	0.1	(0.6)	0.5	(0.9)
Other comprehensive income (loss)	(17.3)	6.5	(26.6)	15.8
Comprehensive income	197.9	214.7	337.7	407.4
Less: Comprehensive income attributable to noncontrolling interest	1.6	1.4	2.9	2.9
Comprehensive income attributable to Hubbell Incorporated	$ 196.3	$ 213.3	$ 334.8	$ 404.5