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Interest And Other Income (Expense), Net (Tables)
 12 Months Ended
Mar. 31, 2013
Interest and Other Income [Abstract]  
Schedule Of Interest And Other Income (Expense), Net
Interest and other income (expense), net, for the fiscal years ended March 31, 2013, 2012 and 2011 consisted of (in millions): 
 
Year Ended March 31,
 
2013
 
2012
 
2011
Interest expense
$
(29
)
 
$
(20
)
 
$
(1
)
Interest income
6

 
9

 
9

Net gain (loss) on foreign currency transactions
2

 
(29
)
 
12

Net gain (loss) on foreign currency forward contracts
(2
)
 
21

 
(12
)
Other income, net
2

 
2

 
2

Interest and other income (expense), net
$
(21
)
 
$
(17
)
 
$
10