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Stock Based Compensation (Tables)
12 Months Ended
Dec. 31, 2021
Stock Based Compensation  
Stock-Based Compensation Recognized as Expense

Year Ended December 31, 

    

2021

    

2020

    

2019

Stock compensation expense before tax benefit

$

$

45

$

77

Income tax benefit

 

 

(11)

 

(19)

$

$

34

$

58