XML 33 R22.htm IDEA: XBRL DOCUMENT v3.10.0.1
Earnings per Common Share
 6 Months Ended
Jun. 30, 2018
Earnings Per Share [Abstract]  
Earnings Per Share [Text Block]
Earnings per Common Share
The following table presents the calculation of basic and diluted earnings per common share.
 
 
Three months ended June 30,
 
Six months ended June 30,
($ in millions, except per share data; shares in thousands) (a)
 
2018
 
2017
 
2018
 
2017
Net income from continuing operations attributable to common stockholders
 
$
348

 
$
254

 
$
600

 
$
467

Income (loss) from discontinued operations, net of tax
 
1

 
(2
)
 
(1
)
 
(1
)
Net income attributable to common stockholders
 
$
349

 
$
252

 
$
599

 
$
466

Basic weighted-average common shares outstanding (b)
 
430,628

 
457,891

 
433,405

 
461,904

Diluted weighted-average common shares outstanding (b)
 
432,554

 
458,819

 
435,727

 
462,802

Basic earnings per common share
 
 
 
 
 
 
 
 
Net income from continuing operations
 
$
0.81

 
$
0.55

 
$
1.38

 
$
1.01

Loss from discontinued operations, net of tax
 
—

 
(0.01
)
 
—

 
—

Net income
 
$
0.81

 
$
0.55

 
$
1.38

 
$
1.01

Diluted earnings per common share
 
 
 
 
 
 
 
 
Net income from continuing operations
 
$
0.80

 
$
0.55

 
$
1.38

 
$
1.01

Loss from discontinued operations, net of tax
 
—

 
(0.01
)
 
—

 
—

Net income
 
$
0.81

 
$
0.55

 
$
1.37

 
$
1.01

(a)
Figures in the table may not recalculate exactly due to rounding. Earnings per share is calculated based on unrounded numbers.
(b)
Includes shares related to share-based compensation that vested but were not yet issued for the three months and six months ended June 30, 2018, and 2017.