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Earnings Per Share (Tables)
 12 Months Ended
Dec. 31, 2021
Earnings Per Share [Abstract]  
Schedule of Reconciliation of Numerators and Denominators Used to Calculate Basic EPS and Diluted EPS

The following table reconciles the numerators and denominators used to calculate basic EPS and diluted EPS (in millions, except per share data):

 

 

 

Years ended December 31,

 

 

 

2021

 

 

2020

 

 

2019

 

Net income

 

$

442

 

 

$

299

 

 

$

604

 

Weighted average shares of common stock outstanding

 

 

107

 

 

 

114

 

 

 

122

 

Dilutive effect stock-based awards

 

 

—

 

 

 

—

 

 

 

1

 

Diluted weighted average shares of common stock outstanding

 

 

107

 

 

 

114

 

 

 

123

 

Basic earnings per share attributable to common stockholders

 

$

4.13

 

 

$

2.62

 

 

$

4.95

 

Diluted earnings per share attributable to common
   stockholders

 

$

4.13

 

 

$

2.62

 

 

$

4.91