Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2015

Basic and diluted earnings per share were computed using the following common share data (shares in millions):


	Three Months Ended September 30,				Nine Months Ended September 30,
	2015		2014		2015		2014
Number of common shares outstanding at end of period		446.5		457.9		446.5		457.9
Effect of using weighted average common shares outstanding		3.1		2.9		8.0		6.1

Weighted average basic common shares outstanding		449.6		460.8		454.5		464.0
Dilutive effect of equity-based compensation awards and other contingently issuable shares		3.1		2.8		3.0		2.4

Weighted average diluted common shares outstanding		452.7		463.6		457.5		466.4

Potentially issuable shares		11.0		12.4		11.0		12.4
Number of anti-dilutive potentially issuable shares excluded from diluted common shares outstanding		2.0		0.4		2.0		0.7