LITIGATION AND CONTINGENCIES (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended		1 Months Ended
	Sep. 30, 2013	Dec. 31, 2012	Dec. 31, 2010 Powerscreen International Distribution Limited	Sep. 30, 2013 Credit Guarantee	Dec. 31, 2012 Credit Guarantee	Sep. 30, 2013 Credit Guarantee Cranes Terex Cranes Germany GmbH	Dec. 31, 2012 Credit Guarantee Cranes Terex Cranes Germany GmbH	Sep. 30, 2013 Credit Guarantee Aerial Work Platforms Genie Holdings Inc.	Dec. 31, 2012 Credit Guarantee Aerial Work Platforms Genie Holdings Inc.	Sep. 30, 2013 Residual Value Guarantee	Dec. 31, 2012 Residual Value Guarantee	Sep. 30, 2013 Buyback Guarantee	Dec. 31, 2012 Buyback Guarantee	Sep. 30, 2013 Buyback Guarantee Aerial Work Platforms Genie Holdings Inc.	Dec. 31, 2012 Buyback Guarantee Aerial Work Platforms Genie Holdings Inc.	Sep. 30, 2013 Buyback Guarantee Material Handling & Port Solutions [Member]	Dec. 31, 2012 Buyback Guarantee Material Handling & Port Solutions [Member]
Loss Contingencies and Guarantee Obligations
Loss contingency, damages sought, value			$ 15.8
Letters of Credit Outstanding, Amount	299.3	324.0
Guarantees, maximum terms	5 years
Guarantees, maximum exposure				54.3	64.3	36.2	45.8	7.8	9.7	2.6	5.7	44.8	73.8	9.9	25.3	34.3	43.6
Fair value of all guarantees recorded in other current liabilities and retirement plans	$ 4	$ 6