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Earnings Per Share Of Common Stock (Tables)
3 Months Ended
Mar. 31, 2017
Earnings Per Share [Abstract]  
Reconciliation of basic and diluted earnings per share
The following table reconciles basic and diluted earnings per share of common stock:
(In millions, except per share amounts)
 
For the Three Months Ended March 31
Reconciliation of Basic and Diluted Earnings per Share of Common Stock
 
2017
 
2016
 
 
 
 
 
Net income
 
$
205

 
$
328

 
 
 
 
 
Weighted average number of basic shares outstanding
 
443

 
424

Assumed exercise of dilutive stock options and awards(1)
 
1

 
2

Weighted average number of diluted shares outstanding
 
444

 
426

 
 
 
 
 
Basic earnings per share of common stock
 
$
0.46

 
$
0.78

Diluted earnings per share of common stock
 
$
0.46

 
$
0.77


(1) 
For both the three months ended March 31, 2017 and March 31, 2016, one million shares were excluded from the calculation of diluted shares outstanding, as their inclusion would be antidilutive.