XML 82 R55.htm IDEA: XBRL DOCUMENT v3.8.0.1
Quarterly Results (unaudited) (Tables)
 12 Months Ended
Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]  
Quarterly Results
 
 
First Quarter
 
Second Quarter
 
Third Quarter
 
Fourth Quarter
($ in millions, except per share data)

 
2017
 
2016
 
2017
 
2016
 
2017
 
2016
 
2017
 
2016
Revenues
 
$
9,434

 
$
8,871

 
$
9,587

 
$
9,164

 
$
9,660

 
$
9,221

 
$
9,843

 
$
9,278

Net income applicable to common shareholders
 
666

 
217

 
550

 
242

 
637

 
491

 
1,220

 
811

Net income applicable to common shareholders earnings per common share - Basic
 
1.82

 
0.57

 
1.51

 
0.65

 
1.76

 
1.32

 
3.41

 
2.20

Net income applicable to common shareholders earnings per common share - Diluted
 
1.79

 
0.57

 
1.49

 
0.64

 
1.74

 
1.31

 
3.35

 
2.18