v2.4.0.6
Consolidated Statements of Operations (USD $)
In Millions, except Share data in Thousands, unless otherwise specified
 3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Operating revenues $ 1,996 $ 2,209 $ 4,111 $ 5,341
Operating expenses:        
Fuel and purchased energy expense 893 1,401 2,137 3,470
Plant operating expense 207 212 699 711
Depreciation and amortization expense 140 143 418 405
Sales, general and other administrative expense 36 33 104 99
Other operating expense 22 22 67 64
Total operating expenses 1,298 1,811 3,425 4,749
(Income) loss from unconsolidated investments in power plants (7) (5) (21) (12)
Income (loss) from operations 705 403 707 604
Interest expense 183 192 552 575
Loss on interest rate derivatives 0 3 14 149
Interest (income) (2) (2) (7) (7)
Debt extinguishment costs 0 (4) 12 94
Other (income) expense, net 6 4 14 14
Income (loss) before income taxes and discontinued operations 518 210 122 (221)
Income tax expense (benefit) 81 20 23 (45) [1]
Net income (loss) 437 190 99 (176)
Net (income) loss attributable to the noncontrolling interest 0 0 0 (1)
Net income (loss) attributable to Calpine $ 437 $ 190 $ 99 $ (177)
Basic earnings (loss) per common share attributable to Calpine:        
Weighted average number of shares outstanding, Basic 462,307 486,420 470,589 486,363
Net income (loss) per common share attributable to Calpine - Basic $ 0.95 $ 0.39 $ 0.21 $ (0.36)
Diluted earnings (loss) per common share attributable to Calpine:        
Weighted average shares of common stock outstanding, Diluted (in thousands) 465,953 489,062 474,131 486,363
Net income (loss) per common share attributable to Calpine — diluted $ 0.94 $ 0.39 $ 0.21 $ (0.36)
[1] approximately $76 million related to the election to consolidate our CCFC and Calpine groups for federal income tax reporting purposes for the nine months ended September 30, 2011.