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Common Stock
9 Months Ended
Sep. 30, 2017
Earnings Per Share [Abstract]  
Common Stock
COMMON STOCK
Basic Earnings Per Share (EPS) is computed by dividing net income attributable to Duke Energy common stockholders, as adjusted for distributed and undistributed earnings allocated to participating securities, by the weighted average number of common shares outstanding during the period. Diluted EPS is computed by dividing net income attributable to Duke Energy common stockholders, as adjusted for distributed and undistributed earnings allocated to participating securities, by the diluted weighted average number of common shares outstanding during the period. Diluted EPS reflects the potential dilution that could occur if securities or other agreements to issue common stock, such as stock options and equity forward sale agreements, were exercised or settled. Duke Energy’s participating securities are restricted stock units that are entitled to dividends declared on Duke Energy common stock during the restricted stock unit’s vesting periods.
The following table presents Duke Energy’s basic and diluted EPS calculations and reconciles the weighted average number of common shares outstanding to the diluted weighted average number of common shares outstanding.
 
Three Months Ended September 30,
 
Nine Months Ended September 30,
(in millions, except per-share amounts)
2017

 
2016

 
2017

 
2016

Income from continuing operations attributable to Duke Energy common stockholders excluding impact of participating securities
$
954

 
$
998

 
$
2,356

 
$
2,194

Weighted average shares outstanding – basic
700

 
689

 
700

 
689

Equity Forwards

 
2

 

 
1

Weighted average shares outstanding – diluted
700
 
691
 
700
 
690
Earnings per share from continuing operations attributable to Duke Energy common stockholders
 
 
 
 
 
 
 
Basic
$
1.36

 
$
1.44

 
$
3.37

 
$
3.19

Diluted
$
1.36

 
$
1.44

 
$
3.37

 
$
3.18

Potentially dilutive items excluded from the calculation(a)
2

 
2

 
2
 
2
Dividends declared per common share
$
0.89

 
$
0.855

 
$
2.60

 
$
2.505

(a)
Performance stock awards were not included in the dilutive securities calculation because the performance measures related to the awards had not been met.
Equity Forwards
In March 2016, Duke Energy marketed an equity offering of 10.6 million shares of common stock. In lieu of issuing equity at the time of the offering, Duke Energy entered into equity forward sale agreements with Barclays (the Equity Forwards). The Equity Forwards required Duke Energy to either physically settle the transactions by issuing 10.6 million shares, or net settle in whole or in part through the delivery or receipt of cash or shares. As of September 30, 2016, share dilution resulting from the agreements was determined under the treasury stock method.
Duke Energy physically settled the Equity Forwards in full in October 2016 following the close of the Piedmont acquisition. See Note 2 for additional information related to the Piedmont acquisition.