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Earnings Per Share (Tables)
 6 Months Ended
Jun. 30, 2018
Earnings Per Share [Abstract]  
Computation Of Basic And Diluted Earnings Per Share
The following table sets forth the computation of basic and diluted earnings per share (“EPS”) (shares in millions): 
 
 
Three Months Ended 
 June 30,
 
Six Months Ended 
 June 30,
 
 
2018
 
2017
 
2018
 
2017
Net income (loss) for basic and diluted EPS
$
26

 
$
3

 
$
(61
)
 
$
(104
)
 
 
 
 
 
 
 
 
 
Basic weighted average shares outstanding
80.7

 
84.0

 
80.8

 
84.9

Options and non-vested stock (a)
0.8

 
1.2

 
—

 
—

Diluted weighted average shares outstanding
81.5

 
85.2

 
80.8

 
84.9

 
 
 
 
 
 
 
 
 
Earnings (loss) per share:
 
 
 
 
 
 
 
 
Basic
$
0.33

 
$
0.04

 
$
(0.75
)
 
$
(1.22
)
 
Diluted
$
0.32

 
$
0.04

 
$
(0.75
)
 
$
(1.22
)

__________
(a) 
For the three months ended June 30, 2018 and 2017, 0.2 million and 0.7 million non-vested stock awards, respectively, have an anti-dilutive effect and therefore are excluded from the computation of diluted weighted average shares outstanding. As the Company incurred a net loss for the six months ended June 30, 2018 and 2017, 0.1 million and 0.8 million outstanding options, respectively, and 1.5 million and 1.3 million non-vested stock awards, respectively, have an anti-dilutive effect and therefore are excluded from the computation of diluted weighted average shares outstanding.