Earnings per share (Tables)

6 Months Ended

Jun. 30, 2020

Earnings Per Share [Abstract]

Computation for basic and diluted earnings per share

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