Segment Reporting (Tables)

6 Months Ended

Sep. 30, 2011

Segment Reporting [Abstract]

Summary of segment performance

	Enterprise		Mainframe
	Service		Service
Quarter Ended September 30, 2011	Management		Management		Consolidated
	(In millions)
Revenue:
License	$	146.0	$	83.7	$	229.7
Maintenance		145.6		124.9		270.5
Professional services		56.5		—		56.5
Total revenue		348.1		208.6		556.7
Direct and allocated indirect segment operating expenses:		259.1		81.2		340.3
Segment operating income		89.0		127.4		216.4
Unallocated operating expenses						(55.4	)
Other loss, net						(4.8	)
Earnings before income taxes					$	156.2

	Enterprise		Mainframe
	Service		Service
Quarter Ended September 30, 2010	Management		Management		Consolidated
	(In millions)
Revenue:
License	$	131.3	$	76.8	$	208.1
Maintenance		136.4		116.1		252.5
Professional services		41.7		—		41.7
Total revenue		309.4		192.9		502.3
Direct and allocated indirect segment operating expenses:		233.2		77.7		310.9
Segment operating income		76.2		115.2		191.4
Unallocated operating expenses						(47.9	)
Other income, net						0.3
Earnings before income taxes					$	143.8

	Enterprise		Mainframe
	Service		Service
Six Months Ended September 30, 2011	Management		Management		Consolidated
	(In millions)
Revenue:
License	$	264.5	$	154.7	$	419.2
Maintenance		286.8		248.3		535.1
Professional services		104.8		—		104.8
Total revenue		656.1		403.0		1,059.1
Direct and allocated indirect segment operating expenses:		507.7		164.5		672.2
Segment operating income		148.4		238.5		386.9
Unallocated operating expenses						(110.8	)
Other loss, net						(6.4	)
Earnings before income taxes					$	269.7

	Enterprise		Mainframe
	Service		Service
Six Months Ended September 30, 2010	Management		Management		Consolidated
	(In millions)
Revenue:
License	$	244.5	$	134.8	$	379.3
Maintenance		273.5		232.8		506.3
Professional services		77.6		—		77.6
Total revenue		595.6		367.6		963.2
Direct and allocated indirect segment operating expenses:		453.8		161.2		615.0
Segment operating income		141.8		206.4		348.2
Unallocated operating expenses						(96.6	)
Other loss, net						(5.2	)
Earnings before income taxes					$	246.4