Condensed Consolidated Statements of Comprehensive (Loss) Income (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Statement of Comprehensive Income [Abstract]
Net income	$ 62.5	$ 125.2	$ 327.7	$ 455.4
Other comprehensive (loss) income, net of reclassification adjustments:
Foreign currency translation adjustments	(243.0)	68.3	(181.5)	(74.6)
Defined benefit pension plans, net of tax	1.9	2.5	5.6	7.3
Unrealized (loss) gain on derivatives, net of tax	(1.0)	1.3	(1.1)	(0.5)
Other comprehensive (loss) income, net of reclassification adjustments	(242.1)	72.1	(177.0)	(67.8)
Comprehensive (loss) income	(179.6)	197.3	150.7	387.6
Comprehensive loss attributable to noncontrolling interests	2.5	1.1	5.4	2.8
Comprehensive (loss) income attributable to AGCO Corporation and subsidiaries	$ (177.1)	$ 198.4	$ 156.1	$ 390.4