EARNINGS PER SHARE

12 Months Ended

Dec. 31, 2017

EARNINGS PER SHARE

The table below illustrates the reconciliation of the earnings and number of shares used in our calculations of basic and diluted earnings per share:



(in millions, except per share amounts)	2017		2016		2015
Computation of Basic Earnings Per Share
Net income	$	1,372	$	780	$	859
Shares for basic earnings per share	375.2		290.9		267.3
Basic earnings per share	$	3.66	$	2.68	$	3.22
Computation of Diluted Earnings Per Share
Net income	$	1,372	$	780	$	859
Shares for basic earnings per share	375.2		290.9		267.3
Effect of dilutive securities
Share-based compensation	4.7		4.8		5.5
Shares for diluted earnings per share	379.9		295.7		272.8
Diluted earnings per share	$	3.61	$	2.64	$	3.15