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SHARE-BASED COMPENSATION (Tables)
 12 Months Ended
Dec. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Additional Information on RSUs
The following table provides additional information on RSUs for the last three fiscal years:
 
2014
 
2013
 
2012
Share-based compensation expense (in millions)
$
98

 
$
101

 
$
83

Weighted average grant-date fair value (per RSU)
$
52

 
$
38

 
$
35

Aggregate intrinsic value of converted and distributed RSUs (in millions)
$
144

 
$
125

 
$
91
Changes in Outstanding Restricted Stock Unit Grants
The following table presents the 2014 changes in our outstanding RSU grants and the associated weighted average grant-date fair values:
 
Number of RSUs
(in millions)
 
Weighted
Average 
Grant-Date
Fair Value
(per RSU)
Outstanding at year-end 2013
6.8

 
$
35

Granted during 2014 (1)
2.2

 
52

Distributed during 2014
(2.8
)
 
31

Forfeited during 2014
(0.2
)
 
39

Outstanding at year-end 2014
6.0

 
$
42


(1) 
Includes 0.3 million PSUs granted to named executive officers.
Changes in Outstanding Stock Option Program Awards
The following table presents the 2014 changes in our outstanding Stock Option Program awards and the associated weighted average exercise prices:
 
Number of
Stock Options
(in millions)
 
Weighted Average
Exercise Price
(per Option)
Outstanding at year-end 2013
4.6

 
$
22

Granted during 2014
0.1

 
53

Exercised during 2014
(4.0
)
 
20

Forfeited during 2014
—

 
—

Outstanding at year-end 2014
0.7

 
$
36
Stock Options Issued Under the Stock Option Program Awards
The following table presents the stock options issued under the Stock Option Program awards outstanding and exercisable at year-end 2014:
 
 
 
 
 
 
Outstanding
 
Exercisable
Range of
Exercise Prices
 
Number of
Stock
Options
(in millions)
 
Weighted
Average
Exercise
Price
(per Option)
 
Weighted
Average
Remaining
Life
(in years)
 
Number of
Stock
Options
(in millions)
 
Weighted
Average
Exercise
Price
(per Option)
 
Weighted
Average
Remaining
Life
(in years)
$
13

 
to
 
$
22

 
—

 
$
17

 
1
 
—

 
$
17

 
1
23

 
to
 
35

 
0.5

 
32

 
5
 
0.3

 
30

 
4
36

 
to
 
53

 
0.2

 
45

 
8
 
—

 
41

 
6
$
13

 
to
 
$
53

 
0.7

 
$
36

 
6
 
0.3

 
$
32

 
4
Number of Options Granted and Associated Weighted Average Grant-Date Fair Values and Weighted Average Exercise Prices
The following table presents the number of stock options we granted in the last three fiscal years and the associated weighted average grant-date fair values and weighted average exercise prices:
 
2014
 
2013
 
2012
Options granted
75,861

 
96,960

 
255,761

Weighted average grant-date fair value (per option)
$
17

 
$
13

 
$
12

Weighted average exercise price (per option)
$
53

 
$
39

 
$
35
Intrinsic Value of Outstanding Stock Options and Exercisable Stock Option
The following table presents the intrinsic value (the amount by which the market price of the underlying common stock exceeded the aggregate exercise price of the stock option) of all outstanding stock options and of exercisable stock options at year-end 2014 and 2013:
($ in millions)
2014
 
2013
Outstanding stock options
$
28

 
$
126

Exercisable stock options
$
14

 
$
121
Changes in Outstanding SARs
The following table presents the 2014 changes in our outstanding SARs and the associated weighted average exercise prices:
 
Number of SARs
(in millions)
 
Weighted Average
Exercise Price
Outstanding at year-end 2013
6.4

 
$
32

Granted during 2014
0.3

 
53

Exercised during 2014
(0.9
)
 
31

Forfeited during 2014
—

 
—

Outstanding at year-end 2014
5.8

 
$
33
Number of Employee SARs and Director SARs Granted, Associated Weighted Average Base Values, And Weighted Average Grant-Date Fair Values
The following tables show the number of Employee SARs and Director SARs we granted in the last three fiscal years, the associated weighted average exercise prices, and the associated weighted average grant-date fair values:
 
Employee SARs
2014
 
2013
 
2012
Employee SARs granted (in millions)
0.3

 
0.7

 
1.0

Weighted average exercise price (per SAR)
$
53

 
$
39

 
$
35

Weighted average grant-date fair value (per SAR)
$
17

 
$
13

 
$
12

Director SARs
2014
 
2013
 
2012
Director SARs granted
3,277

 
5,903

 
5,915

Weighted average exercise price (per SAR)
$
59

 
$
44

 
$
39

Weighted average grant-date fair value (per SAR)
$
22

 
$
15

 
$
14
Assumptions for Stock Options and Employee SARs
We used the following assumptions to determine the fair value of the SARs and stock options we granted to employees and non-employee directors in 2014 and 2013, and to employees in 2012:

 
2014
 
2013
 
2012
Expected volatility
29 - 30%

 
30 - 31%

 
31
%
Dividend yield
1.14
%
 
1.17
%
 
1.01
%
Risk-free rate
2.2 - 2.8%

 
1.8 - 1.9%

 
1.7 - 2.0%

Expected term (in years)
6 - 10

 
8 - 10

 
8 - 10
Share-Based Compensation Expense, Number of Deferred Stock Units Granted, Weighted Average Grant-date Fair Value, and Aggregate Intrinsic Value of Non-Employee Director Deferred Stock Units
The following table presents the share-based compensation expense, the number of deferred stock units we granted, the weighted average grant-date fair value, and the aggregate intrinsic value for the last three fiscal years for non-employee director deferred stock units:
 
 
2014
 
2013
 
2012
Share-based compensation expense (in millions)
$
1.2

 
$
1.4

 
$
1.2

Non-employee director deferred stock units granted
21,000

 
31,000

 
27,000

Weighted average grant-date fair value (per share)
$
59

 
$
44

 
$
39

Aggregate intrinsic value of shares distributed (in millions)
$
0.8

 
$
0.7

 
$
1.0