Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2020

Earnings Per Share [Abstract]

Schedule of earnings per share

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