Earnings per share

6 Months Ended

Jun. 30, 2020

Earnings Per Share [Abstract]

Earnings per share

Earnings per share

The computation of basic earnings per share (EPS) is based on the weighted-average number of our common shares outstanding. The computation of diluted EPS is based on the weighted-average number of our common shares outstanding and dilutive potential common shares, which include primarily shares that may be issued under our stock option, restricted stock and performance unit award programs (collectively, dilutive securities), as determined by using the treasury stock method.

The computations for basic and diluted EPS were as follows (in millions, except per-share data):

	Three months ended June 30,				Six months ended June 30,
	2020		2019		2020		2019
Income (Numerator):
Net income for basic and diluted EPS	$	1,803	$	2,179	$	3,628	$	4,171
Shares (Denominator):
Weighted-average shares for basic EPS	588		607		589		615
Effect of dilutive securities	4		3		4		3
Weighted-average shares for diluted EPS	592		610		593		618
Basic EPS	$	3.07	$	3.59	$	6.16	$	6.78
Diluted EPS	$	3.05	$	3.57	$	6.12	$	6.75

For the three and six months ended June 30, 2020 and 2019, the number of antidilutive employee stock-based awards excluded from the computation of diluted EPS was not significant.