Deferred Revenue (Tables)

6 Months Ended

Sep. 30, 2011

Deferred Revenue [Abstract]

Components of Deferred revenue (billed or collected)

	September 30,		March 31,
	2011		2011
	(in millions)
Current:
Subscription and maintenance	$	2,020	$	2,444
Professional services		142		145
Financing obligations and other		13		11
Total deferred revenue (billed or collected) — current		2,175		2,600
Noncurrent:
Subscription and maintenance		831		940
Professional services		30		27
Financing obligations and other		2		2
Total deferred revenue (billed or collected) — noncurrent		863		969
Total deferred revenue (billed or collected)	$	3,038	$	3,569