Annual report pursuant to Section 13 and 15(d)

Summarized Quarterly Financial Data (unaudited)

v3.20.4
Summarized Quarterly Financial Data (unaudited)
 12 Months Ended
Dec. 31, 2020
Quarterly Financial Information Disclosure [Abstract]  
Summarized Quarterly Financial Data (unaudited)
Summarized Quarterly Financial Data—(in millions, except per share amounts)
  First
Quarter		 Second
Quarter		 Third
Quarter		 Fourth
Quarter
Year Ended December 31, 2020:
Revenues $ 2,709  $ 2,402  $ 1,460  $ 2,787 
Income from operations 1,346  937  72  276 
Net income (loss) 603  404  (508) 2 
Net income (loss) attributable to common stockholders 375  197  (463) (194)
Net income (loss) per share attributable to common stockholders—basic (1) 1.48  0.78  (1.84) (0.77)
Net income (loss) per share attributable to common stockholders—diluted (1) 1.43  0.78  (1.84) (0.77)
Year Ended December 31, 2019:
        
Revenues $ 2,261  $ 2,292  $ 2,170  $ 3,007 
Income from operations 606  432  307  1,016 
Net income (loss) 337  2  (260) 1,153 
Net income (loss) attributable to common stockholders 141  (114) (318) 939 
Net income (loss) per share attributable to common stockholders—basic (1) 0.55  (0.44) (1.25) 3.70 
Net income (loss) per share attributable to common stockholders—diluted (1) 0.54  (0.44) (1.25) 3.34 
(1)The sum of the quarterly net income (loss) per share—basic and diluted may not equal the full year amount as the computations of the weighted average common shares outstanding for basic and diluted shares outstanding for each quarter and the full year are performed independently.