Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions		3 Months Ended				9 Months Ended
		Sep. 30, 2022		Sep. 30, 2021		Sep. 30, 2022	Sep. 30, 2021
Statement of Comprehensive Income [Abstract]
Net income (loss)		$ 118.3		$ 162.2		$ 461.1	$ 552.3
Foreign currency adjustments:
Foreign currency translation gain (loss) arising during the period		(92.5)		(26.8)		(213.4)	(61.3)
Reclassification of foreign currency translation (gains) losses		0.0		0.0		4.2	0.0
Total foreign currency translation adjustments	[1]	(92.5)		(26.8)		(209.2)	(61.3)
Derivative instruments:
Unrealized hedging gains (losses) and other, net of tax expense (benefit) of $(6.8) and $(9.4) for the three and nine months ended September 30, 2022 and $0.5 and $2.5 for the three and nine months ended September 30, 2021, respectively		8.1		41.6		(36.4)	34.1
Reclassification of deferred hedging (gains) losses, net of tax	[2]	12.0		0.6		20.4	11.8
Total derivative instruments, net of tax expense (benefit) of $(0.7) and $1.9 for the three and nine months ended September 30, 2022 and $1.1 and $6.1 for the three and nine months ended September 30, 2021, respectively		20.1		42.2		(16.0)	45.9
Pension and other postretirement benefits:
Unrealized actuarial gains (losses) and prior service (costs) credits, net of tax expense (benefit) of zero and zero for the three and nine months ended September 30, 2022 and $(0.2) and $(0.6) for the three and nine months ended September 30, 2021, respectively		(0.1)		(0.7)		(0.1)	(2.2)
Reclassification of net actuarial and other (gain) loss and amortization of prior service costs, included in net income, net of tax (expense) benefit	[2]	0.0		2.5		6.8	6.9
Total pension and other postretirement benefits, net of tax expense (benefit) of zero and $1.8 for the three and nine months ended September 30, 2022 and $0.5 and $1.2 for the three and nine months ended September 30, 2021, respectively		(0.1)	[3]	1.8	[4]	6.7	4.7
Other comprehensive income (loss), net of tax		(72.5)		17.2		(218.5)	(10.7)
Comprehensive income (loss)		45.8		179.4		242.6	541.6
Less: Comprehensive income (loss) attributable to the noncontrolling interest		(3.4)		2.2		(3.5)	3.2
Comprehensive income (loss) attributable to FMC stockholders		$ 49.2		$ 177.2		$ 246.1	$ 538.4

[1] Income taxes are not provided for foreign currency translation because the related investments are essentially permanent in duration.

[2] For more detail on the components of these reclassifications and the affected line item in the condensed consolidated statements of income (loss) see Note 14.

[3] See condensed consolidated statements of comprehensive income (loss).

[4] See condensed consolidated statements of comprehensive income (loss).