Condensed Consolidated Statements of Income (Loss) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Income Statement [Abstract]
Revenue	$ 1,377.2	$ 1,194.0	$ 4,180.3	$ 3,631.6
Costs and Expenses
Costs of sales and services	899.7	682.5	2,539.1	2,078.4
Gross margin	477.5	511.5	1,641.2	1,553.2
Selling, general and administrative expenses	179.4	183.5	562.7	519.0
Research and development expenses	78.5	79.5	229.8	219.4
Restructuring and other charges (income)	9.0	32.8	98.9	52.3
Total costs and expenses	1,166.6	978.3	3,430.5	2,869.1
Income from continuing operations before non-operating pension and postretirement charges (income), interest expense, net and income taxes	210.6	215.7	749.8	762.5
Non-operating pension and postretirement charges (income)	(1.7)	1.5	6.5	3.9
Interest expense, net	41.8	33.1	107.0	98.1
Income (loss) from continuing operations before income taxes	170.5	181.1	636.3	660.5
Provision (benefit) for income taxes	36.0	9.2	133.0	75.8
Income (loss) from continuing operations	134.5	171.9	503.3	584.7
Discontinued operations, net of income taxes	(16.2)	(9.7)	(42.2)	(32.4)
Net income (loss)	118.3	162.2	461.1	552.3
Less: Net income (loss) attributable to noncontrolling interests	(2.7)	2.5	(1.5)	3.4
Net income (loss) attributable to FMC stockholders	121.0	159.7	462.6	548.9
Amounts attributable to FMC stockholders:
Continuing operations, net of income taxes	137.2	169.4	504.8	581.3
Discontinued operations, net of income taxes	(16.2)	(9.7)	(42.2)	(32.4)
Net income (loss) attributable to FMC stockholders	$ 121.0	$ 159.7	$ 462.6	$ 548.9
Basic earnings (loss) per common share attributable to FMC stockholders:
Continuing operations (in USD per share)	$ 1.09	$ 1.32	$ 3.99	$ 4.51
Discontinued operations (in USD per share)	(0.13)	(0.08)	(0.33)	(0.25)
Net income (loss) attributable to FMC stockholders (in USD per share)	0.96	1.24	3.66	4.26
Diluted earnings (loss) per common share attributable to FMC stockholders:
Continuing operations (in USD per share)	1.08	1.32	3.98	4.48
Discontinued operations (in USD per share)	(0.13)	(0.08)	(0.33)	(0.25)
Net income (loss) attributable to FMC stockholders (in USD per share)	$ 0.95	$ 1.24	$ 3.65	$ 4.23