Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2019

Earnings Per Share [Abstract]

Computation of basic and diluted EPS

The table on the following page sets forth the computation of basic and diluted EPS:

	Year ended December 31
	2019		2018		2017
Basic EPS Calculation
Earnings available to common stockholders - Basic1	$	2,924	$	14,824	$	9,195
Weighted-average number of common shares outstanding2	1,882		1,897		1,882
Add: Deferred awards held as stock units	—		1		1
Total weighted-average number of common shares outstanding	1,882		1,898		1,883
Earnings per share of common stock - Basic	$	1.55	$	7.81	$	4.88
Diluted EPS Calculation
Earnings available to common stockholders - Diluted1	$	2,924	$	14,824	$	9,195
Weighted-average number of common shares outstanding2	1,882		1,897		1,882
Add: Deferred awards held as stock units	—		1		1
Add: Dilutive effect of employee stock-based awards	13		16		15
Total weighted-average number of common shares outstanding	1,895		1,914		1,898
Earnings per share of common stock - Diluted	$	1.54	$	7.74	$	4.85
1 There was no effect of dividend equivalents paid on stock units or dilutive impact of employee stock-based awards on earnings.
2 Millions of shares.