v3.19.1
Quarterly Consolidated Financial Data (unaudited) (Tables)
 12 Months Ended
Dec. 31, 2018
Quarterly Financial Information Disclosure [Abstract]  
Schedule of Quarterly Consolidated Financial Data (unaudited)
 
Quarter Ended
 
December 31
 
September 30
 
June 30
 
March 31
 
(in millions)
2018
 
 
 
 
 
 
 
Operating revenues
$
2,354

 
$
2,890

 
$
2,259

 
$
2,009

Income (loss) from operations
$
105

 
$
568

 
$
417

 
$
(328
)
Net income (loss) attributable to Calpine
$
(16
)
 
$
272

 
$
352

 
$
(598
)
 
 
 
 
 
 
 
 
2017
 
 
 
 
 
 
 
Operating revenues
$
1,801

 
$
2,586

 
$
2,084

 
$
2,281

Income (loss) from operations
$
(100
)
 
$
393

 
$
13

 
$
72

Net income (loss) attributable to Calpine
$
(292
)
 
$
225

 
$
(216
)
 
$
(56
)