Earnings Per Common Share (Tables)

12 Months Ended

Dec. 31, 2018

Earnings Per Share [Abstract]

Computation of Basic and Diluted Earnings per Common Share

The following table sets forth the computation of basic and diluted earnings per common share (EPS) (in millions, except share and per share amounts):

	Year Ended December 31,
	2018		2017		2016
Basic EPS:
Net income	$	1,412	$	1,282	$	2,584
Weighted average common shares outstanding (in thousands)	464,236		489,164		552,308
Basic EPS	$	3.04	$	2.62	$	4.68
Diluted EPS:
Net income for purposes of computing diluted EPS	$	1,412	$	1,282	$	2,584
Share computation for diluted EPS (in thousands):
Basic weighted average common shares outstanding	464,236		489,164		552,308
Dilutive effect of stock awards	1,424		2,528		3,791
Diluted weighted average common shares outstanding	465,660		491,692		556,099
Diluted EPS	$	3.03	$	2.61	$	4.65
Restricted stock unit awards excluded from the calculation of diluted EPS because inclusion would be antidilutive (in thousands)	1,266		328		1,429