Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2017

Earnings Per Share [Abstract]

Schedule of Computations of Weighted Average Shares Outstanding

The computations of the weighted average shares outstanding for the periods indicated are as follows (in millions):

	Three Months Ended June 30,				Six Months Ended June 30,
	2017		2016		2017		2016
Weighted-average shares outstanding		483.3		446.9		483.0		357.4
Share-based payment awards classified as participating securities		1.0		1.4		1.2		1.1
Basic weighted-average shares outstanding		484.3		448.3		484.2		358.5
Dilutive securities (1)		1.6		1.9		1.6		1.6
Diluted weighted-average shares outstanding		485.9		450.2		485.8		360.1

(1) For the three and six months ended June 31, 2017 and 2016 the amount of potentially dilutive securities that are excluded because their effect would be anti-dilutive are not material.