Discontinued Operations 1 (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2010
Income (loss) from the discontinued components
Subscription and maintenance revenue	$ 15	$ 83	$ 122
Professional services	0	0	4
Total revenue	15	83	126
(Loss) income from operations of discontinued components, net of tax benefit (expense) of $6 million, $(4) million and $(7) million, respectively	(10)	9	12
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax	23	(5)	0
Income from discontinued operations, net of taxes	$ 13	$ 4	$ 12