CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income (loss)		$ 1,321.0	$ 741.5	$ 737.1
Foreign currency adjustments:
Foreign currency translation gain (loss) arising during the period		29.7	(103.1)	(87.0)
Reclassification of foreign currency translations losses		0.0	4.2	0.0
Foreign currency translation adjustments	[1]	29.7	(98.9)	(87.0)
Derivative instruments:
Unrealized hedging gains (losses) and other, net of tax expense (benefit) of $(29.1) in 2023, $(17.2) in 2022 and $5.4 in 2021		(72.4)	(65.4)	44.1
Reclassification of deferred hedging (gains) losses and other, included in net income (loss), net of tax (expense) benefit of $31.7 in 2023, $19.1 in 2022 and $1.7 in 2021 (3)	[2]	73.9	35.9	5.5
Total derivative instrument impact on comprehensive income, net of tax		1.5	(29.5)	49.6
Pension and other postretirement benefits:
Unrealized actuarial gains (losses) and prior service (costs) credits, net of tax expense (benefit) of $2.9 in 2023, $(4.3) in 2022 and $(4.5) in 2021	[3]	11.4	(15.7)	(17.4)
Reclassification of net actuarial and other (gain) loss, amortization of prior service costs and settlement charges, included in net income, net of tax (expense) benefit of $2.9 in 2023, $2.4 in 2022 and $2.5 in 2021	[2]	11.0	9.1	9.5
Total pension and other postretirement benefits, net of tax expense (benefit) of $5.8 in 2023, $(1.9) in 2022 and $(2.0) in 2021		22.4	(6.6)	(7.9)
Other comprehensive income (loss), net of tax		53.6	(135.0)	(45.3)
Comprehensive income (loss)		1,374.6	606.5	691.8
Less: Comprehensive income (loss) attributable to the noncontrolling interest		0.0	4.1	(3.0)
Comprehensive income (loss) attributable to FMC stockholders		$ 1,374.6	$ 602.4	$ 694.8

[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 consolidated statements of income (loss), see Note 16 to the consolidated financial statements included within this Form 10-K for further details.

[3] At December 31 of each year, we remeasure our pension and postretirement plan obligations at which time we record any actuarial gains (losses) and prior service (costs) credits to other comprehensive income. See Note 14 to the consolidated financial statements included within this Form 10-K for further details.