Fair Value Measurements (Tables)
12 Months Ended
Mar. 31, 2015
Fair Value Disclosures [Abstract]  
Fair Value Assets And Liabilities Measured On Recurring Basis
 
 
 
Fair Value Measurements at Reporting Date Using
 
 
 
As of March 31, 2015
 
Quoted Prices in
Active Markets for Identical
Financial Instruments
 
Significant
Other
Observable
Inputs
 
Significant
Unobservable
Inputs
 
 
 
(Level 1)
 
(Level 2)
 
(Level 3)
 
Balance Sheet Classification
Assets
 
 
 
 
 
 
 
 
 
Bank and time deposits
$
175

 
$
175

 
$

 
$

 
Cash equivalents
Money market funds
7

 
7

 

 

 
Cash equivalents
Available-for-sale securities:
 
 
 
 
 
 
 
 
 
Corporate bonds
468

 

 
468

 

 
Short-term investments and cash equivalents
U.S. Treasury securities
214

 
214

 

 

 
Short-term investments
U.S. agency securities
180

 

 
180

 

 
Short-term investments and cash equivalents
Commercial paper
140

 
 
 
140

 
 
 
Short-term investments and cash equivalents
Foreign currency derivatives
18

 

 
18

 

 
Other current assets
Deferred compensation plan assets (a)
9

 
9

 

 

 
Other assets
Total assets at fair value
$
1,211

 
$
405

 
$
806

 
$

 
 
Liabilities
 
 
 
 
 
 
 
 
 
Contingent consideration (b)
$

 
$

 
$

 
$

 
Accrued and other current 
liabilities
Foreign currency derivatives
9

 

 
9

 

 
Accrued and other current liabilities
Deferred compensation plan liabilities (a)
9

 
9

 

 

 
Other liabilities
Total liabilities at fair value
$
18

 
$
9

 
$
9

 
$

 
 
 
 
 
Fair Value Measurements at Reporting Date Using
 
 
 
As of
March 31,
2014
 
Quoted Prices in Active Markets for Identical
Financial
Instruments
 
Significant
Other
Observable
Inputs
 
Significant
Unobservable
Inputs
 
 
 
(Level 1)
 
(Level 2)
 
(Level 3)
 
Balance Sheet Classification
Assets
 
 
 
 
 
 
 
 
 
Money market funds
$
588

 
$
588

 
$

 
$

 
Cash equivalents
Available-for-sale securities:
 
 
 
 
 
 
 
 
 
Corporate bonds
279

 

 
279

 

 
Short-term investments
Commercial paper
146

 

 
146

 

 
Short-term investments and cash equivalents
U.S. Treasury securities
118

 
118

 

 

 
Short-term investments and cash equivalents
U.S. agency securities
89

 

 
89

 

 
Short-term investments and cash equivalents
Deferred compensation plan assets (a)
9

 
9

 

 

 
Other assets
Total assets at fair value
$
1,229

 
$
715

 
$
514

 
$

 
 
Liabilities
 
 
 
 
 
 
 
 
 
Contingent consideration (b)
$
4

 
$

 
$

 
$
4

 
Accrued and other current 
liabilities and other liabilities
Foreign currency derivatives
6

 

 
6

 

 
Accrued and other current liabilities
Deferred compensation plan liabilities (a)
9

 
9

 

 

 
Other liabilities
Total liabilities at fair value
$
19

 
$
9

 
$
6

 
$
4

 
 
Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
 
 
 
Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
 
 
 
 
 
 
 
 
 
Contingent
Consideration
 
 
Balance as of March 31, 2014
 
$
4

 
 
Change in fair value (c)
 
(3
)
 
 
Payments (d)
 
(1
)
 
 
Balance as of March 31, 2015 (b)
 
$

 
 
 
 
 
Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
 
 
 
 
 
 
 
 
 
Contingent
Consideration
 
 
Balance as of March 31, 2013
 
$
43

 
 
Change in fair value (c)
 
(35
)
 
 
Payments (d)
 
(4
)
 
 
Balance as of March 31, 2014 (b)
 
$
4