Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 891.9	$ 784.7	$ 757.6
Currency translation adjustment:
Foreign currency translation adjustments	48.7	(60.3)	22.9
Defined benefit pension and post-retirement plans, net of taxes of $(6.9), $4.6 and $(4.2)	23.6	(15.0)	10.2
Unrealized gain (loss) on investments, net of taxes of $(0.2), $0.0 and $(0.2)	0.7	(0.1)	0.6
Unrealized gains (losses) on cash flow hedges, net of taxes of $0.6, $(0.6) and $0.4	(1.3)	1.3	(0.9)
Other comprehensive (loss) income	71.7	(74.1)	32.8
Comprehensive income	963.6	710.6	790.4
Less: Comprehensive income attributable to noncontrolling interest	4.8	5.7	6.2
COMPREHENSIVE INCOME ATTRIBUTABLE TO HUBBELL	$ 958.8	$ 704.9	$ 784.2