Earnings per share (Tables)

3 Months Ended

Mar. 31, 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 March 31,
	2020		2019
Income (Numerator):
Net income for basic and diluted EPS	$	1,825	$	1,992
Shares (Denominator):
Weighted-average shares for basic EPS	590		622
Effect of dilutive securities	4		4
Weighted-average shares for diluted EPS	594		626
Basic EPS	$	3.09	$	3.20
Diluted EPS	$	3.07	$	3.18