Earnings Per Common Share (Tables)

9 Months Ended

Sep. 30, 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):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2018		2017		2018		2017
Basic EPS:
Net income	$	341	$	661	$	1,094	$	1,865
Weighted average common shares outstanding (in thousands)	460,526		484,772		465,452		493,164
Basic EPS	$	0.74	$	1.36	$	2.35	$	3.78
Diluted EPS:
Net income for purposes of computing diluted EPS	$	341	$	661	$	1,094	$	1,865
Share computation for diluted EPS (in thousands):
Basic weighted average common shares outstanding	460,526		484,772		465,452		493,164
Dilutive effect of stock awards	981		1,853		1,456		2,632
Diluted weighted average common shares outstanding	461,507		486,625		466,908		495,796
Diluted EPS	$	0.74	$	1.36	$	2.34	$	3.76
Restricted stock unit awards excluded from the calculation of diluted EPS because inclusion would be antidilutive (in thousands)	1,694		66		1,128		432