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Earnings (Loss) per Share
 12 Months Ended
Dec. 31, 2016
Earnings Per Share [Abstract]  
Earnings Per Share
Earnings (Loss) per Share

Basic earnings (loss) per common share is computed by dividing net income (loss) attributable to the common shareholders of the Company by the weighted-average number of common shares outstanding. Diluted earnings (loss) per share is computed in the same manner as basic earnings (loss) per share, except the number of shares is increased to include additional common shares that would have been outstanding if potential common shares with a dilutive effect had been issued. Potential common shares consist primarily of stock options, restricted stock and restricted stock units calculated using the treasury stock method.

The calculation for basic and diluted earnings (loss) per share is as follows:
(in millions, except per share data)
Year Ended December 31,
 
2016
 
2015
 
2014
Amount attributable to S&P Global Inc. common shareholders:
 
 
 
 
 
Income (loss) from continuing operations
$
2,106

 
$
1,156

 
$
(293
)
Income from discontinued operations
—

 
—

 
178

Net income (loss) attributable to the Company
$
2,106

 
$
1,156

 
$
(115
)
 
 
 
 
 
 
Basic weighted-average number of common shares outstanding
262.8

 
271.6

 
271.5

Effect of stock options and other dilutive securities
2.4

 
3.0

 
—

Diluted weighted-average number of common shares outstanding
265.2

 
274.6

 
271.5

 
 
 
 
 
 
Income (loss) from continuing operations:
 
 
 
 
 
Basic
$
8.02

 
$
4.26

 
$
(1.08
)
Diluted
$
7.94

 
$
4.21

 
$
(1.08
)
Income from discontinued operations:
 
 
 
 
 
Basic
$
—

 
$
—

 
$
0.66

Diluted
$
—

 
$
—

 
$
0.66

Net income (loss):
 
 
 
 
 
Basic
$
8.02

 
$
4.26

 
$
(0.42
)
Diluted
$
7.94

 
$
4.21

 
$
(0.42
)


Each period we have certain stock options and restricted performance shares that are excluded from the computation of diluted earnings (loss) per share. The effect of the potential exercise of stock options is excluded when the average market price of our common stock is lower than the exercise price of the related option during the period or when a loss from continuing operations exists because the effect would have been antidilutive. Additionally, restricted performance shares are excluded because the necessary vesting conditions had not been met or when a loss from continuing operations exists. As of December 31, 2016 and 2015, there were no stock options excluded as compared to 2.9 million stock options excluded for the year ended December 31, 2014. Additionally, restricted performance shares outstanding of 0.7 million, 0.9 million and 3.2 million as of December 31, 2016, 2015 and 2014, respectively, were excluded.