Earnings or Loss Per Share (Tables)

3 Months Ended

Mar. 31, 2015

Earnings Per Share [Abstract]

Schedule of the reconciliation of the denominators of basic and diluted earnings per share

The following table presents the reconciliation of the denominators of basic and diluted earnings per share (in millions):

	Three Months Ended March 31, 2015
Weighted average shares outstanding, basic	131.4
Dilutive effect of stock options	0.5
Weighted average shares outstanding, diluted	131.9