Discontinued Operations (Results of Discontinued Operations) (Details) (USD $) In Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2010		Jun. 30, 2010
Revenue	$ 29.7		$ 82.2
Operations	1.1		10.4
Gain on sale	64.8		64.8
Income	65.9		75.2
Income tax provision	4.9		8.5
Income from discontinued operations, net of tax	61.0	[1]	66.7	[1]
Health Information Management [Member]
Revenue	10.4		42.0
Operations	1.0		9.8
Gain on sale	64.8		64.8
Income	65.8		74.6
Income tax provision	5.0		8.5
Income from discontinued operations, net of tax	60.8		66.1
Unisys Insurance Services Limited [Member]
Revenue	19.3		40.2
Operations	0.1		0.6
Income	0.1		0.6
Income tax provision	(0.1)
Income from discontinued operations, net of tax	$ 0.2		$ 0.6

[1] Reclassified for discontinued operations. See note (a).