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Share-Based Compensation (Tables)
12 Months Ended
Dec. 31, 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 share-based compensation expense during each of the years ended December 31, 2014, 2013 and 2012:
 
Year Ended December 31,
(Dollars in millions)
2014
 
2013
 
2012
Share-based compensation
$
56

 
$
66

 
$
76

Related tax benefit
12

 
11

 
27

Schedule of Deferred Compensation Arrangement with Individual, Share-based Payments
A summary of option activity for the year ended December 31, 2014, is presented below:
 
 
 
 
Options
 
Weighted
Average Exercise
Price
 
Weighted
Average
Remaining
Term
 
Aggregate
Intrinsic
Value
 
(In thousands)
 
 
 
 
 
(In thousands)
Outstanding at December 31, 2013
7,956

 
$
9.31

 
2.01 years
 
$
54,775

Exercised
(1,313
)
 
8.24

 
 
 
 

Outstanding and Vested at December 31, 2014
6,643

 
9.52

 
1.18 years
 
23,500

 
 
 
 
 
 
 
 
Exercisable at December 31, 2014
5,368

 
7.07

 
1.03 years
 
23,500

Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity
A summary of RSA and RSU activity for the year ended December 31, 2014 is presented below:
 
 
RSA
 
Weighted
Average Grant Date
Fair Value
 
RSU
 
Weighted
Average
Grant Date
Fair Value
 
 
(In thousands)
 
 
 
(In thousands)
 
 
Non-Vested at December 31, 2013
 
3,211

 
$
14.80

 
3,137

 
$
14.26

Granted
 
425

 
17.72

 
2,997

 
19.16

Vested
 
(1,171
)
 
14.87

 
(1,633
)
 
15.29

Forfeited
 
(211
)
 
14.97

 
(201
)
 
15.93

Non-Vested at December 31, 2014
 
2,254

 
15.31

 
4,300

 
17.21

Schedule of Nonvested Performance-based Units Activity
A summary of performance unit activity for the year ended December 31, 2014, is presented below:
 
Performance Units
 
Weighted Average Grant Date Fair Value
 
(In thousands)
 
 
Non-vested at December 31, 2013
1,911

 
$
16.05

Granted
801

 
14.31

Vested
(282
)
 
12.49

Forfeited
(482
)
 
28.61

Non-vested at December 31, 2014
1,948

 
12.74