Quarterly report pursuant to Section 13 or 15(d)

Computation of Basic and Diluted Earnings Per Share (Detail)

v3.8.0.1
Computation of Basic and Diluted Earnings Per Share (Detail) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Numerator:        
Net income attributable to common shareowners $ 1,264 $ 1,270 $ 3,806 $ 3,670
Denominator:        
Weighted average shares 864 876 867 880
Deferred compensation obligations 1 1 1 1
Vested portion of restricted shares 4 3 4 4
Denominator for basic earnings per share 869 880 872 885
Effect of dilutive securities:        
Denominator for diluted earnings per share 874 885 876 889
Basic earnings per share (usd per share) $ 1.45 $ 1.44 $ 4.36 $ 4.15
Diluted earnings per share (usd per share) $ 1.45 $ 1.44 $ 4.34 $ 4.13
Restricted performance units        
Effect of dilutive securities:        
Incremental common shares attributable to share-based payment arrangements 4 4 3 3
Stock option plans        
Effect of dilutive securities:        
Incremental common shares attributable to share-based payment arrangements 1 1 1 1