XML 40 R19.htm IDEA: XBRL DOCUMENT v3.8.0.1
Earnings per Share
 12 Months Ended
Dec. 31, 2017
Earnings per Share disclosure  
Earnings per Share disclosure [Text Block]

11. EARNINGS PER SHARE

        Basic earnings per share was computed by dividing net income available to common shareholders by the weighted average number of common shares outstanding during the period. The computation of diluted earnings per share reflected the effect of potentially dilutive securities.

        The following is a reconciliation of the income and share data used in the basic and diluted earnings per share computations:

(for the year ended December 31, in millions, except per share amounts)
  2017   2016   2015  

Basic and Diluted

                    

Net income, as reported

   $ 2,056   $ 3,014   $ 3,439  

Participating share-based awards—allocated income

     (15 )   (22 )   (25 )
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Net income available to common shareholders—basic and diluted

   $ 2,041   $ 2,992   $ 3,414  
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Common Shares

                    

Basic

                    

Weighted average shares outstanding

     276.0     288.1     310.6  
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Diluted

                    

Weighted average shares outstanding

     276.0     288.1     310.6  

Weighted average effects of dilutive securities:

                    

Stock options and performance shares

     2.6     2.9     3.3  
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Total

     278.6     291.0     313.9  
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Net income Per Common Share

                    

Basic

   $ 7.39   $ 10.39   $ 10.99  
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Diluted

   $ 7.33   $ 10.28   $ 10.88  
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​