DISCONTINUED OPERATIONS AND OTHER DIVESTITURES - Income (Loss) From Discontinued Operations (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net loss (income) from discontinued operations attributable to noncontrolling interest	$ 0.0	$ 0.0	$ (0.9)
Income (loss) from discontinued operations - net of tax attributable to Terex Corporation	$ 0.0	$ 0.0	13.4
Materials Handling and Port Solutions Sale | Discontinued Operations, Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales			1,398.2
Cost of sales			(1,090.3)
Selling, general and administrative expenses			(266.8)
Goodwill and intangible asset impairments			(3.1)
Net interest (expense)			(2.3)
Other income (expense)			(11.5)
Gain (loss) on disposition of discontinued operations			24.2
(Provision for) benefit from income taxes			(9.9)
Income (loss) from discontinued operations – net of tax			14.3
Net loss (income) from discontinued operations attributable to noncontrolling interest			(0.9)
Income (loss) from discontinued operations - net of tax attributable to Terex Corporation			$ 13.4