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Note 10 - Stock Repurchase Programs (Tables)
3 Months Ended
Mar. 31, 2012
Stock Repurchase Programs [Abstract]  
Summary of stock repurchase activity under stock repurchase program
The stock repurchase activity under this stock repurchase program during the first three months of 2012 is summarized as follows:

 
Shares Repurchased
 
Average Price per Share
 
Value of Shares Repurchased
 
Remaining Amount Authorized
 
(In millions, except per share amounts)
Balance at January 1, 2012
35

 
$
31.55

 
$
1,119

 
$
881

Repurchase of common stock
7

 
34.27

 
240

 
(240
)
Balance at March 31, 2012
42

 
$
32.00

 
$
1,359

 
$
641