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Shares Used to Calculate Earnings Per Share
9 Months Ended
Sep. 30, 2014
Notes to Financial Statements [Abstract]  
Capital stock

Note 8Shares used to calculate earnings per share

Three MonthsNine Months
Ended September 30,Ended September 30,
(In millions)2014201320142013
Weighted-average shares:
Basic(a) 49.1 48.7 49.0 48.6
Effect of dilutive stock options and awards 0.3 0.3 - 0.3
Diluted 49.4 49.0 49.0 48.9
Antidilutive stock options and awards excluded from denominator 0.5 1.2 1.9 1.7

  • We have deferred compensation plans for directors and certain of our employees. Amounts owed to participants are denominated in common stock units. Each unit represents one share of common stock. The number of shares used to calculate basic earnings per share includes the weighted-average units credited to employees and directors under the deferred compensation plans. Additionally, nonvested units are also included in the computation of basic weighted average shares when the requisite service period has been completed. Accordingly, included in basic shares are weighted-average units of 0.5 million in the three months and 0.5 million in the nine months ended September 30, 2014, and 0.6 million in the three months and 0.6 million in the nine months ended September 30, 2013.