CONSOLIDATING FINANCIAL STATEMENTS - Cash Flows (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Condensed Cash Flows
Net cash provided by (used in) operating activities of continuing operations	$ 163.1	$ 138.8
Cash flows from investing activities
Capital expenditures	(60.9)	(56.1)
Other investments	0	(14.1)
Proceeds from sale of assets	45.2	31.3
Intercompany investing activities	0	0
Other investing activities, net	(0.7)	(5.2)
Net cash (used in) provided by investing activities of continuing operations	(16.4)	(44.1)
Cash flows from financing activities
Repayments of debt	(503.5)	(654.5)
Proceeds from issuance of debt	293.6	339.0
Purchase of noncontrolling interest	(228.1)	(3.2)
Distributions to noncontrolling interest	(18.4)	(4.9)
Intercompany financing activities	0	0
Other financing activities, net	8.5	(3.2)
Net cash provided by (used in) financing activities of continuing operations	(447.9)	(326.8)
Effect of exchange rate changes on cash and cash equivalents	(6.2)	0.6
Net Increase (Decrease) in Cash and Cash Equivalents	(307.4)	(231.5)
Cash and Cash Equivalents at Beginning of Period	678.0	774.1
Cash and Cash Equivalents at End of Period	370.6	542.6
Terex Corporation
Condensed Cash Flows
Net cash provided by (used in) operating activities of continuing operations	324.1	(8.7)
Cash flows from investing activities
Capital expenditures	(6.7)	(5.2)
Other investments		(4.5)
Proceeds from sale of assets	4.4	0.8
Intercompany investing activities	(307.8)	(99.2)
Other investing activities, net	(2.8)	0
Net cash (used in) provided by investing activities of continuing operations	(312.9)	(108.1)
Cash flows from financing activities
Repayments of debt	(9.0)	(400.0)
Proceeds from issuance of debt	9.0	300.0
Purchase of noncontrolling interest	0	0
Distributions to noncontrolling interest	0	0
Intercompany financing activities	0	(6.0)
Other financing activities, net	1.3	(2.0)
Net cash provided by (used in) financing activities of continuing operations	1.3	(108.0)
Effect of exchange rate changes on cash and cash equivalents	0	0
Net Increase (Decrease) in Cash and Cash Equivalents	12.5	(224.8)
Cash and Cash Equivalents at Beginning of Period	39.6	264.0
Cash and Cash Equivalents at End of Period	52.1	39.2
Wholly-owned Guarantors
Condensed Cash Flows
Net cash provided by (used in) operating activities of continuing operations	(169.5)	134.2
Cash flows from investing activities
Capital expenditures	(18.0)	(10.2)
Other investments		0
Proceeds from sale of assets	34.4	2.5
Intercompany investing activities	(18.8)	(127.2)
Other investing activities, net	0	0
Net cash (used in) provided by investing activities of continuing operations	(2.4)	(134.9)
Cash flows from financing activities
Repayments of debt	0	(0.1)
Proceeds from issuance of debt	0	0
Purchase of noncontrolling interest	0	0
Distributions to noncontrolling interest	0	0
Intercompany financing activities	174.0	0
Other financing activities, net	0	0
Net cash provided by (used in) financing activities of continuing operations	174.0	(0.1)
Effect of exchange rate changes on cash and cash equivalents	0	0
Net Increase (Decrease) in Cash and Cash Equivalents	2.1	(0.8)
Cash and Cash Equivalents at Beginning of Period	1.4	2.3
Cash and Cash Equivalents at End of Period	3.5	1.5
Non-guarantor Subsidiaries
Condensed Cash Flows
Net cash provided by (used in) operating activities of continuing operations	8.5	13.3
Cash flows from investing activities
Capital expenditures	(36.2)	(40.7)
Other investments		(9.6)
Proceeds from sale of assets	6.4	28.0
Intercompany investing activities	(0.6)	134.0
Other investing activities, net	2.1	(5.2)
Net cash (used in) provided by investing activities of continuing operations	(28.3)	106.5
Cash flows from financing activities
Repayments of debt	(494.5)	(254.4)
Proceeds from issuance of debt	284.6	39.0
Purchase of noncontrolling interest	(228.1)	(3.2)
Distributions to noncontrolling interest	(18.4)	(4.9)
Intercompany financing activities	153.2	98.4
Other financing activities, net	7.2	(1.2)
Net cash provided by (used in) financing activities of continuing operations	(296.0)	(126.3)
Effect of exchange rate changes on cash and cash equivalents	(6.2)	0.6
Net Increase (Decrease) in Cash and Cash Equivalents	(322.0)	(5.9)
Cash and Cash Equivalents at Beginning of Period	637.0	507.8
Cash and Cash Equivalents at End of Period	315.0	501.9
Intercompany Eliminations
Condensed Cash Flows
Net cash provided by (used in) operating activities of continuing operations	0	0
Cash flows from investing activities
Capital expenditures	0	0
Other investments		0
Proceeds from sale of assets	0	0
Intercompany investing activities	327.2	92.4
Other investing activities, net	0	0
Net cash (used in) provided by investing activities of continuing operations	327.2	92.4
Cash flows from financing activities
Repayments of debt	0	0
Proceeds from issuance of debt	0	0
Purchase of noncontrolling interest	0	0
Distributions to noncontrolling interest	0	0
Intercompany financing activities	(327.2)	(92.4)
Other financing activities, net	0	0
Net cash provided by (used in) financing activities of continuing operations	(327.2)	(92.4)
Effect of exchange rate changes on cash and cash equivalents	0	0
Net Increase (Decrease) in Cash and Cash Equivalents	0	0
Cash and Cash Equivalents at Beginning of Period	0	0
Cash and Cash Equivalents at End of Period	$ 0	$ 0