For the Years Ended December 31,

2021

2020

2019

Numerator:

Net Income available to common stockholders for basic net income per common share

$

1,314

$

131

$

914

Effect of interest on assumed conversions of convertible notes, net of tax

8

7

Net Income available to common stockholders for dilutive net income per common share

$

1,322

$

139

$

921

Denominator:

Weighted average common shares outstanding for basic net income per common share

4,062

4,330

4,501

Weighted average impact of assumed convertible notes

30

28

Weighted average impact of dilutive equity instruments

51

69

87

Weighted average shares for diluted net income per common share

4,143

4,429

4,616

Net income per common share:

Basic

$

0.32

$

0.03

$

0.20

Diluted

$

0.32

$

0.03

$

0.20