XML 49 R44.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
QUARTERLY DATA (UNAUDITED) (Tables)
 12 Months Ended
Dec. 31, 2019
Quarterly Financial Information [Table Text Block]
The following table presents quarterly unaudited financial data for the periods presented on the consolidated statements of operations (in millions, except per share amounts):
 
 
Quarter Ended
 
 
March 31,
 
June 30,
 
September 30,
 
December 31,
 
 
2019
 
2018
 
2019
 
2018
 
2019
 
2018
 
2019
 
2018
Operating revenue
 
$
453

 
$
458

 
$
467

 
$
454

 
$
465

 
$
456

 
$
485

 
$
500

Operating (loss) income
 
$
(8
)
 
$
20

 
$
10

 
$
(18
)
 
$
44

 
$
2

 
$
44

 
$
59

Net income (loss)
 
$
5

 
$
201

 
$
(21
)
 
$
(31
)
 
$
14

 
$
(27
)
 
$
12

 
$
9

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Earnings (loss) per share:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Basic
 
$
0.04

 
$
1.55

 
$
(0.16
)
 
$
(0.24
)
 
$
0.11

 
$
(0.21
)
 
$
0.09

 
$
0.07

Diluted
 
$
0.03

 
$
1.53

 
$
(0.16
)
 
$
(0.24
)
 
$
0.10

 
$
(0.21
)
 
$
0.09

 
$
0.07