Condensed Consolidated Statements of Income (unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Income Statement [Abstract]
Net sales	$ 874.0	$ 855.8	$ 1,683.7	$ 1,615.3
Cost of goods sold	589.9	563.3	1,146.9	1,077.8
Gross profit	284.1	292.5	536.8	537.5
Selling & administrative expenses	157.4	148.8	305.1	289.0
Operating income	126.7	143.7	231.7	248.5
Interest expense, net	(7.4)	(7.0)	(15.1)	(14.5)
Other (expense) income, net	(1.3)	(0.3)	(3.8)	(1.5)
Total other expense	(8.7)	(7.3)	(18.9)	(16.0)
Income before income taxes	118.0	136.4	212.8	232.5
Provision for income taxes	36.7	45.6	68.1	76.4
Net income	81.3	90.8	144.7	156.1
Less: Net income attributable to noncontrolling interest	1.2	0.6	2.2	1.7
Net income attributable to Hubbell	$ 80.1	$ 90.2	$ 142.5	$ 154.4
Earnings per share
Basic (USD per share)	$ 1.39	$ 1.53	$ 2.46	$ 2.61
Diluted (USD per share)	1.37	1.51	2.44	2.59
Cash dividends per common share (USD per share)	$ 0.56	$ 0.50	$ 1.12	$ 1.00