CONSOLIDATED STATEMENTS OF INCOME (LOSS) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenue	$ 2,054.4	$ 2,026.3	$ 2,222.8
Costs and expenses
Cost of revenue	1,482.4	1,543.3	1,688.8
Selling, general and administrative	389.5	369.4	364.8
Research and development	28.5	26.6	31.3
Costs and expenses	1,900.4	1,939.3	2,084.9
Operating income	154.0	87.0	137.9
Interest expense	35.4	29.2	62.1
Other (expense), net	(580.3)	(329.6)	(136.4)
Loss from continuing operations before income taxes	(461.7)	(271.8)	(60.6)
(Benefit) provision for income taxes	(11.9)	45.4	27.7
Consolidated net loss from continuing operations	(449.8)	(317.2)	(88.3)
Net (loss) income attributable to noncontrolling interests	(1.3)	0.5	3.9
Net loss from continuing operations attributable to Unisys Corporation	(448.5)	(317.7)	(92.2)
Income from discontinued operations, net of tax	0.0	1,068.4	75.0
Net (loss) income attributable to Unisys Corporation	$ (448.5)	$ 750.7	$ (17.2)
Basic
Continuing operations (in dollars per share)	$ (6.75)	$ (5.05)	$ (1.65)
Discontinued operations (in dollars per share)	0	16.98	1.34
Total (in dollars per share)	(6.75)	11.93	(0.31)
Diluted
Continuing operations (in dollars per share)	(6.75)	(5.05)	(1.65)
Discontinued operations (in dollars per share)	0	16.98	1.34
Total (in dollars per share)	$ (6.75)	$ 11.93	$ (0.31)
Services
Revenue	$ 1,699.3	$ 1,692.9	$ 1,892.7
Costs and expenses
Cost of revenue	1,358.7	1,429.4	1,590.6
Technology
Revenue	355.1	333.4	330.1
Costs and expenses
Cost of revenue	$ 123.7	$ 113.9	$ 98.2