CONSOLIDATED STATEMENT OF INCOME (LOSS) - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Statement [Abstract]
Net sales	$ 5,125.0	$ 4,363.4	$ 4,443.1
Cost of goods sold	(4,158.2)	(3,547.4)	(3,730.7)
Gross profit	966.8	816.0	712.4
Selling, general and administrative expenses	(673.5)	(636.1)	(678.2)
Goodwill impairment	0.0	0.0	(176.0)
Income (loss) from operations	293.3	179.9	(141.8)
Other income (expense)
Interest income	8.9	6.9	4.3
Interest expense	(73.1)	(67.5)	(102.0)
Loss on early extinguishment of debt	(0.7)	(52.6)	(0.4)
Other income (expense) – net	(79.7)	45.3	(30.8)
Income (loss) from continuing operations before income taxes	148.7	112.0	(270.7)
(Provision for) benefit from income taxes	(37.4)	(52.0)	77.4
Income (loss) from continuing operations	111.3	60.0	(193.3)
Income (loss) from discontinued operations – net of tax	0.0	0.0	14.3
Gain (loss) on disposition of discontinued operations – net of tax	2.4	68.7	3.5
Net income (loss)	113.7	128.7	(175.5)
Net loss (income) from continuing operations attributable to noncontrolling interest	0.0	0.0	0.3
Net loss (income) from discontinued operations attributable to noncontrolling interest	0.0	0.0	(0.9)
Net income (loss) attributable to Terex Corporation	113.7	128.7	(176.1)
Amounts attributable to Terex Corporation common stockholders:
Income (loss) from continuing operations	111.3	60.0	(193.0)
Income (loss) from discontinued operations – net of tax	0.0	0.0	13.4
Gain (loss) on disposition of discontinued operations – net of tax	2.4	68.7	3.5
Net income (loss) attributable to Terex Corporation	$ 113.7	$ 128.7	$ (176.1)
Basic Earnings (Loss) per Share Attributable to Terex Corporation Common Stockholders:
Income (loss) from continuing operations (in dollars per share)	$ 1.48	$ 0.65	$ (1.79)
Income (loss) from discontinued operations – net of tax (in dollars per share)	0.00	0.00	0.13
Gain (loss) on disposition of discontinued operations – net of tax (in dollars per share)	0.03	0.74	0.03
Net income (loss) attributable to Terex Corporation (in dollars per share)	1.51	1.39	(1.63)
Diluted Earnings (Loss) per Share Attributable to Terex Corporation Common Stockholders:
Income (loss) from continuing operations (in dollars per share)	1.45	0.63	(1.79)
Income (loss) from discontinued operations – net of tax (in dollars per share)	0.00	0.00	0.13
Gain (loss) on disposition of discontinued operations – net of tax (in dollars per share)	0.03	0.73	0.03
Net income (loss) attributable to Terex Corporation (in dollars per share)	$ 1.48	$ 1.36	$ (1.63)
Weighted average number of shares outstanding in per share calculation
Basic (in shares)	75.4	92.8	107.9
Diluted (in shares)	76.9	94.9	107.9