EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Earnings per share
Income (loss) from continuing operations attributable to Terex Corporation common stockholders	$ (60.3)	$ (22.0)
Income (loss) from discontinued operations – net of tax	0.0	(52.2)
Gain (loss) on disposition of discontinued operations – net of tax	55.7	3.4
Net income (loss) attributable to Terex Corporation	$ (4.6)	$ (70.8)
Basic shares:
Weighted average shares outstanding - Basic (in shares)	105,200,000	108,800,000
Earnings per share - basic:
Income (loss) from continuing operations (in dollars per share)	$ (0.57)	$ (0.20)
Income (loss) from discontinued operations - net of tax (in dollars per share)	0.00	(0.48)
Gain (loss) on disposition of discontinued operations - net of tax (in dollars per share)	0.53	0.03
Net income (loss) attributable to Terex Corporation (in dollars per share)	$ (0.04)	$ (0.65)
Diluted shares:
Weighted average shares outstanding - Basic (in shares)	105,200,000	108,800,000
Effect of dilutive securities:
Stock options and restricted stock awards [in shares]	0	0
Diluted weighted average shares outstanding (in shares)	105,200,000	108,800,000
Earnings per share - diluted:
Income (loss) from continuing operations (in dollars per share)	$ (0.57)	$ (0.20)
Income (loss) from discontinued operations - net of tax (in dollars per share)	0.00	(0.48)
Gain (loss) on disposition of discontinued operations - net of tax (in dollars per share)	0.53	0.03
Net income (loss) attributable to Terex Corporation (in dollars per share)	(0.04)	(0.65)
Other details of antidilutive securities
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01	$ 0.01
Stock Options
Other details of antidilutive securities
Antidilutive securities excluded from computation of earnings per share (in shares)	8,000	139,000
Restricted Stock
Other details of antidilutive securities
Antidilutive securities excluded from computation of earnings per share (in shares)	2,300,000	2,500,000