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Earnings per Share (Tables)
 12 Months Ended
Dec. 31, 2015
Earnings Per Share [Abstract]  
Reconciliation of Numerators and Denominators of Earnings Per Share Calculations [Table Text Block]
Reconciliation of the numerators and denominators of the earnings per share calculations —
 
2015
 
2014
 
2013
Income from continuing operations
$
176

 
$
343

 
$
261

Less: Noncontrolling interests
21

 
9

 
16

Less: Preferred stock dividend requirements


 
7

 
25

Less: Preferred stock redemption premium


 


 
232

Income (loss) from continuing operations available to common stockholders - Numerator basic
155

 
327

 
(12
)
Preferred stock dividend requirements


 
7

 


Numerator diluted
$
155

 
$
334

 
$
(12
)
 
 
 
 
 
 
Net income (loss) available to common stockholders - Numerator basic
$
159

 
$
312

 
$
(13
)
Preferred stock dividend requirements


 
7

 


Numerator diluted
$
159

 
$
319

 
$
(13
)
 
 
 
 
 
 
Weighted-average number of shares outstanding - Denominator basic
159.0

 
158.0

 
146.4

Employee compensation-related shares, including stock options
1.0

 
1.2

 


Conversion of preferred stock


 
14.3

 


Denominator diluted
160.0

 
173.5

 
146.4