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EARNINGS PER SHARE (Tables)
 12 Months Ended
Dec. 31, 2019
Earnings Per Share [Abstract]  
Reconciliation of Basic and Diluted Earnings (Loss) per Common Share

The following table provides a reconciliation of the basic and diluted loss or income per common share:
 
Year Ended December 31,
 
2017
 
2018
 
2019
Net income (loss) available to common shareholders (in millions)
$
(30
)
 
$
171

 
$
96

Weighted average common shares outstanding - basic (in thousands)
34,432

 
34,514

 
34,625

Dilutive shares from stock awards (in thousands)
—

 
582

 
509

Weighted average common shares outstanding - diluted (in thousands)
34,432

 
35,096

 
35,134

Basic income (loss) per share
$
(0.87
)
 
$
4.97

 
$
2.78

Diluted income (loss) per share
$
(0.87
)
 
$
4.88

 
$
2.74