Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2016

Earnings Per Share [Abstract]

Average Common Shares Outstanding Basic and Diluted

A reconciliation of the average number of common shares outstanding used in the basic and diluted EPS computations follows:

	Three Months Ended March 31
(Millions of shares)	2016	2015
Basic	360.7	365.2
Dilutive effect of stock options and restricted share unit awards	2.7	2.7
Diluted	363.4	367.9