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Deferred Revenue (Tables)
6 Months Ended
Sep. 30, 2012
Deferred Revenue Disclosure [Abstract]  
Components of deferred revenue (billed or collected)
The current and noncurrent components of “Deferred revenue (billed or collected)” at September 30, 2012 and March 31, 2012 were as follows:
 
September 30,
2012
 
March 31,
2012
 
(in millions)
Current:
 
 
 
Subscription and maintenance
$
1,943

 
$
2,479

Professional services
140

 
162

Financing obligations and other
18

 
17

Total deferred revenue (billed or collected) – current
$
2,101

 
$
2,658

Noncurrent:
 
 
 
Subscription and maintenance
$
787

 
$
935

Professional services
37

 
35

Financing obligations and other
2

 
2

Total deferred revenue (billed or collected) – noncurrent
$
826

 
$
972

Total deferred revenue (billed or collected)
$
2,927

 
$
3,630