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Income per Common Share
 6 Months Ended
Jun. 30, 2017
Earnings Per Share [Abstract]  
Income (Loss) per Common Share
Income (Loss) per Common Share
Basic income (loss) per share is based on the weighted average number of common shares outstanding.  Diluted income per share assumes exercise of stock options in all years, provided the effect is not antidilutive. The per share calculations below exclude 12 million stock options for the three and six month periods ended June 30, 2017 and 14 million stock options for the three and six month periods ended June 30, 2016 that were antidilutive.
 
Three Months Ended June 30,
 
Six Months Ended June 30,
(In millions, except per share data)
2017
 
2016
 
2017
 
2016
Income (loss) from operations
$
(153
)
 
$
(138
)
 
$
(203
)
 
$
(498
)
Income (loss) from discontinued operations
14

 
(32
)
 
(4,893
)
 
(79
)
Net income (loss)
$
(139
)
 
$
(170
)
 
$
(5,096
)
 
$
(577
)
 
 
 
 
 
 
 
 
Weighted average common shares outstanding
850

 
848

 
850

 
790

Per basic share:
 
 
 
 
 
 
 
Income (loss) from continuing operations
$
(0.18
)
 
$
(0.16
)
 
$
(0.24
)
 
$
(0.63
)
Income (loss) from discontinued operations
$
0.02

 
$
(0.04
)
 
$
(5.76
)
 
$
(0.10
)
Net income
$
(0.16
)
 
$
(0.20
)
 
$
(6.00
)
 
$
(0.73
)
Per diluted share:
 
 
 
 
 
 
 
Income (loss) from continuing operations
$
(0.18
)
 
$
(0.16
)
 
$
(0.24
)
 
$
(0.63
)
Income (loss) from discontinued operations
$
0.02

 
$
(0.04
)
 
$
(5.76
)
 
$
(0.10
)
Net income
$
(0.16
)
 
$
(0.20
)
 
$
(6.00
)
 
$
(0.73
)