Earnings Per Share

12 Months Ended

Dec. 31, 2020

Earnings Per Share [Abstract]

Earnings Per Share

Earnings Per ShareBasic earnings per share is computed by dividing net income available to common stockholders by the weighted-average number of common shares outstanding. Diluted earnings per share is computed by dividing net income available to common stockholders by the weighted-average number of common shares plus the effect of dilutive potential common shares outstanding during the period. The following table sets forth the computation of basic and diluted earnings per share (shares in thousands):

	Year Ended December 31,
	2020		2019		2018
Numerator:
Net income available to common stockholders	$	890	$	1,174	$	1,096
Denominator:
Denominator for basic earnings per share—weighted-average common shares	72,658		77,341		82,652
Effect of dilutive securities:
Employee stock options	12		114		379
Restricted stock units	259		255		499
Denominator for diluted earnings per share—adjusted weighted-average common shares	72,929		77,710		83,530
Basic earnings per share	$	12.24	$	15.18	$	13.26
Diluted earnings per share	$	12.20	$	15.11	$	13.12