Acquisitions (Pro Forma Financial Information) (Details) - OneAg - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Business Acquisition [Line Items]
Net sales	$ 2,599.3	$ 3,568.1	$ 8,858.0	$ 10,987.6
Net income (loss) attributable to AGCO Corporation and subsidiaries	$ 30.6	$ 277.8	$ (165.5)	$ 799.5