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Note 11 - Stock-Based Plans (Tables)
6 Months Ended
Jun. 30, 2013
Stock-Based Plans Disclosure [Abstract]  
Schedule of stock option activity
The following table summarizes stock option activity for the six months ended June 30, 2013:  
 
Options
 
(In millions)
Outstanding as of January 1, 2013
24

Granted and assumed
1

Exercised
(6
)
Forfeited/expired/canceled
(1
)
Outstanding as of June 30, 2013
18

Schedule of restricted stock unit activity
The following table summarizes restricted stock unit ("RSU") activity for the six months ended June 30, 2013:  
 
Units 
 
(In millions)
Outstanding as of January 1, 2013
39

Awarded and assumed
13

Vested
(13
)
Forfeited
(2
)
Outstanding as of June 30, 2013
37

Schedule of stock-based compensation expense
The impact on our results of operations of recording stock-based compensation expense for the three and six months ended June 30, 2013 and 2012 was as follows:
 
 
Three Months Ended June 30,
 
Six Months Ended June 30,
 
2013
 
2012
 
2013
 
2012
 
(In millions)
Cost of net revenues
$
23

 
$
14

 
$
36

 
$
28

Sales and marketing
41

 
34

 
74

 
64

Product development
46

 
37

 
78

 
67

General and administrative
51

 
42

 
84

 
79

Total stock-based compensation expense
$
161

 
$
127

 
$
272

 
$
238

Capitalized in product development
$
4

 
$
3

 
$
7

 
$
10

Weighed average assumptions
The following weighted average assumptions were used for the three and six months ended June 30, 2013 and 2012:
 
 
Three Months Ended June 30,
 
Six Months Ended June 30,
 
2013
 
2012
 
2013
 
2012
Risk-free interest rate
0.62
%
 
0.73
%
 
0.62
%
 
0.72
%
Expected life (in years)
4.1

 
4.0

 
4.1

 
4.0

Dividend yield
%
 
%
 
%
 
%
Expected volatility
34
%
 
38
%
 
34
%
 
38
%