XML 90 R75.htm IDEA: XBRL DOCUMENT v3.10.0.1
Earnings Per Share (Average Common shares Outstanding Basic and Diluted) (Details) - shares
shares in Millions
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Earnings Per Share [Abstract]      
Basic 348.0 353.6 359.4
Dilutive effect of stock options and restricted share unit awards 1.6 2.3 2.3
Diluted 349.6 355.9 361.7