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Disposal Group, Including Discontinued Operation, Restructuring And Other Charges (Income)

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Disposal Group, Including Discontinued Operation, Separation-Related Costs And Other Adjustments

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Disposal Group, Including Discontinued Operations, Impairment Charge on Assets Held-For-Sale, Net of Tax

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Income (Loss) from Discontinued Operations, Net of Tax, Before Divestiture Related Costs and Adjustments

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Amount after tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation.

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Amount before tax of income (loss) from operations classified as a discontinued operation. Excludes gain (loss) on disposal and provision for gain (loss) until its disposal.

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Amount of tax expense (benefit) attributable to income (loss) from operations classified as a discontinued operation. Excludes tax expense (benefit) for gain (loss) on disposal and for provision for gain (loss) until disposal.

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Amount of costs of goods sold attributable to disposal group, including, but not limited to, discontinued operation.

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Amount of revenue attributable to disposal group, including, but not limited to, discontinued operation.

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Amount after tax of income (loss) from a discontinued operation including the portion attributable to the noncontrolling interest. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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Amount after tax of income (loss) from a discontinued operation attributable to the noncontrolling interest. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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Amount after tax of income (loss) from a discontinued operation attributable to the parent. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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Amount of expense (reversal of expense) for net periodic benefit cost components, excluding service cost component, of defined benefit plan. Amount includes, but is not limited to, interest cost, expected (return) loss on plan asset, amortization of prior service cost (credit), amortization of (gain) loss, amortization of transition (asset) obligation, settlement (gain) loss, curtailment (gain) loss and certain termination benefits.

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Discontinued Operations - Results of Discontinued Operations (Details) - USD ($) $ in Millions		3 Months Ended								12 Months Ended
	Nov. 01, 2017	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
Discontinued operations, net of income taxes		$ 8.4	$ (18.4)	$ (10.8)	$ (7.5)	$ (33.5)	$ (21.3)	$ (18.1)	$ 9.6	$ (28.3)	$ (63.3)	$ (26.1)
Discontinued operations of FMC Lithium, net of income taxes, attributable to FMC Stockholders		$ 8.4	$ (18.4)	$ (10.8)	$ (7.5)	$ (33.5)	$ (21.3)	$ (18.1)	$ 9.6	(28.3)	(63.3)	(29.3)
Non-operating pension and postretirement charges (income)										21.2	8.1	(0.5)
FMC Lithium
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
Discontinued operations, net of income taxes										0.0	(21.3)	117.3
FMC Lithium \| Discontinued Operations, Disposed of by Sale
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
Revenue										0.0	52.1	442.5
Costs of sales and services										0.0	41.3	235.4
Income (loss) from discontinued operations before income taxes										0.0	1.1	170.9
Provision (benefit) for income taxes										0.0	6.0	25.5
Total discontinued operations, net of income taxes, before divestiture-related costs and adjustments										0.0	(4.9)	145.4
Divestiture related costs and other adjustments of discontinued operations of FMC Health and Nutrition, net of income taxes										0.0	(16.4)	(28.1)
Discontinued operations, net of income taxes										0.0	(21.3)	117.3
Less: Discontinued operations of FMC Lithium attributable to noncontrolling interests										0.0	0.0	3.2
Discontinued operations of FMC Lithium, net of income taxes, attributable to FMC Stockholders										0.0	(21.3)	114.1
Restructuring and other charges (income)												2.5
Non-operating pension and postretirement charges (income)												4.3
FMC Health and Nutrition
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
Discontinued operations, net of income taxes										0.0	0.5	6.0
FMC Health and Nutrition \| Discontinued Operations, Held-for-sale or Disposed of by Sale
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
Revenue										0.0	0.0	3.8
Costs of sales and services										0.0	0.0	4.0
Income (loss) from discontinued operations before income taxes										0.0	0.0	2.0
Provision (benefit) for income taxes										0.0	0.0	3.8
Total discontinued operations, net of income taxes, before divestiture-related costs and adjustments										0.0	0.0	(1.8)
Gain on sale of FMC Health and Nutrition, net of income taxes	$ 727.0									0.0	0.0	0.0
Adjustment to gain on sale of FMC Health and Nutrition, net of income taxes										0.0	0.0	7.8
Divestiture related costs and other adjustments of discontinued operations of FMC Health and Nutrition, net of income taxes										0.0	0.5	0.0
Adjustment to FMC Health and Nutrition Omega-3 net assets held for sale, net of income taxes										0.0	0.0	0.0
Discontinued operations of FMC Lithium, net of income taxes, attributable to FMC Stockholders										$ 0.0	$ 0.5	$ 6.0