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Stock-Based Compensation
 6 Months Ended
Jun. 30, 2018
Stock-Based Compensation  
Stock-Based Compensation

Note 7 – Stock-Based Compensation

 

A summary of stock-based compensation for each of the respective periods is as follows:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Three Months Ended

 

Six Months Ended

 

 

June 30, 

 

June 30, 

In millions

    

2018

    

2017

    

2018

    

2017

Stock-based compensation:

    

 

 

    

 

 

    

 

 

    

 

 

Stock options

 

$

11

 

$

14

 

$

25

 

$

34

Restricted stock units and performance share units

 

 

43

 

 

39

 

 

85

 

 

74

Total stock-based compensation

 

$

54

 

$

53

 

$

110

 

$

108