Deferred Revenue (Tables)

12 Months Ended

Mar. 31, 2012

Deferred Revenue [Abstract]

Components of Deferred revenue (billed or collected)

	AT MARCH 31,
(in millions)	2012		2011
Current:
Subscription and maintenance	$	2,479	$	2,444
Professional services		162		142
Financing obligations and other		17		11
Total deferred revenue (billed or collected) — current	$	2,658	$	2,597
Noncurrent:
Subscription and maintenance	$	935	$	940
Professional services		35		27
Financing obligations and other		2		2
Total deferred revenue (billed or collected) — noncurrent	$	972	$	969
Total deferred revenue (billed or collected)	$	3,630	$	3,566