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Share-Based Compensation (Tables)
9 Months Ended
Sep. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award
We recognized the following employee share-based compensation expense during the three and nine months ended September 30, 2014 and 2013:
 
Three Months Ended September 30,
 
Nine Months Ended September 30,
(Dollars in millions)
2014
 
2013
 
2014
 
2013
Share-based compensation
$
13

 
$
18

 
$
44

 
$
45

Related tax benefit
3

 
5

 
9

 
9