Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 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 June 30		Six Months Ended June 30
(Millions of shares)	2016	2015	2016	2015
Basic	360.0	364.3	360.4	364.7
Dilutive effect of stock options and restricted share unit awards	2.4	2.4	2.5	2.6
Diluted	362.4	366.7	362.9	367.3