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Earnings Per Share (Tables)
 12 Months Ended
Dec. 31, 2020
Earnings Per Share [Abstract]  
Reconciliation of Weighted Average Number of Shares of Common Stock Outstanding

Below is a reconciliation of the weighted average number of shares of common stock outstanding in calculating Diluted EPS (shares in thousands and dollars in millions, except per share amounts) for the periods presented:

 

 

 

Year ended December 31,

 

 

 

2020

 

 

2019

 

 

2018

 

Numerator:

 

 

 

 

 

 

 

 

 

 

 

 

Net income (loss)

 

$

(289

)

 

$

126

 

 

$

113

 

Denominator:

 

 

 

 

 

 

 

 

 

 

 

 

Weighted average shares used to compute

   Basic EPS

 

 

134,858

 

 

 

138,975

 

 

 

138,116

 

Weighted average effect of dilutive

   securities:

 

 

 

 

 

 

 

 

 

 

 

 

Stock options

 

 

—

 

 

 

155

 

 

 

351

 

RSUs/MSUs

 

 

—

 

 

 

1,528

 

 

 

1,908

 

Weighted average shares used to compute

   Diluted EPS

 

 

134,858

 

 

 

140,658

 

 

 

140,375

 

Basic EPS

 

$

(2.14

)

 

$

0.91

 

 

$

0.82

 

Diluted EPS

 

$

(2.14

)

 

$

0.89

 

 

$

0.81