v2.4.0.6

Quarterly Consolidated Financial Data (unaudited) (Tables) | 12 Months Ended
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Dec. 31, 2011
Quarterly Financial Information Disclosure [Abstract] |
Schedule of Quarterly Consolidated Financial Data (unaudited) |
| Quarter Ended
| December 31 |  | September 30 |  | June 30 |  | March 31
| (in millions, except per share amounts)
2011 |  |  |  |  |  |  |
Operating revenues | $ | 1,459 |  |  | $ | 2,209 |  |  | $ | 1,633 |  |  | $ | 1,499 |
Income from operations | 196 |  |  | 403 |  |  | 183 |  |  | 18 |
Income (loss) before discontinued operations attributable to Calpine | $ | (13 | ) |  | $ | 190 |  |  | $ | (70 | ) |  | $ | (297 | )
Discontinued operations, net of tax expense, attributable to Calpine | — |  |  | — |  |  | — |  |  | — |
Net income (loss) attributable to Calpine | $ | (13 | ) |  | $ | 190 |  |  | $ | (70 | ) |  | $ | (297 | )
Basic earnings (loss) per common share: |  |  |  |  |  |  |
Income (loss) before discontinued operations attributable to Calpine | $ | (0.03 | ) |  | $ | 0.39 |  |  | $ | (0.14 | ) |  | $ | (0.61 | )
Discontinued operations, net of tax expense, attributable to Calpine | — |  |  | — |  |  | — |  |  | — |
Net income (loss) attributable to Calpine | $ | (0.03 | ) |  | $ | 0.39 |  |  | $ | (0.14 | ) |  | $ | (0.61 | )
Diluted earnings (loss) per common share: |  |  |  |  |  |  |
Income (loss) before discontinued operations attributable to Calpine | $ | (0.03 | ) |  | $ | 0.39 |  |  | $ | (0.14 | ) |  | $ | (0.61 | )
Discontinued operations, net of tax expense, attributable to Calpine | — |  |  | — |  |  | — |  |  | — |
Net income (loss) attributable to Calpine | $ | (0.03 | ) |  | $ | 0.39 |  |  | $ | (0.14 | ) |  | $ | (0.61 | )
2010 |  |  |  |  |  |  |
Operating revenues | $ | 1,471 |  |  | $ | 2,130 |  |  | $ | 1,430 |  |  | $ | 1,514 |
Income from operations | 89 |  |  | 554 |  |  | 108 |  |  | 150 |
Income (loss) before discontinued operations attributable to Calpine | $ | (186 | ) |  | $ | 198 |  |  | $ | (119 | ) |  | $ | (55 | )
Discontinued operations, net of tax expense, attributable to Calpine | 162 |  |  | 19 |  |  | 4 |  |  | 8 |
Net income (loss) attributable to Calpine | $ | (24 | ) |  | $ | 217 |  |  | $ | (115 | ) |  | $ | (47 | )
Basic earnings (loss) per common share: |  |  |  |  |  |  |
Income (loss) before discontinued operations attributable to Calpine | $ | (0.38 | ) |  | $ | 0.41 |  |  | $ | (0.25 | ) |  | $ | (0.11 | )
Discontinued operations, net of tax expense, attributable to Calpine | 0.33 |  |  | 0.04 |  |  | 0.01 |  |  | 0.01 |
Net income (loss) attributable to Calpine | $ | (0.05 | ) |  | $ | 0.45 |  |  | $ | (0.24 | ) |  | $ | (0.10 | )
Diluted earnings (loss) per common share: |  |  |  |  |  |  |
Income (loss) before discontinued operations attributable to Calpine | $ | (0.38 | ) |  | $ | 0.41 |  |  | $ | (0.25 | ) |  | $ | (0.11 | )
Discontinued operations, net of tax expense, attributable to Calpine | 0.33 |  |  | 0.04 |  |  | 0.01 |  |  | 0.01 |
Net income (loss) attributable to Calpine | $ | (0.05 | ) |  | $ | 0.45 |  |  | $ | (0.24 | ) |  | $ | (0.10 | )

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- Definition Tabular disclosure of the quarterly financial data in the annual financial statements. The disclosure includes financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income (loss) before extraordinary items and cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 270 -SubTopic 10 -Publisher FASB -Number -Article -Subparagraph (a)-(j) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -URI http://asc.fasb.org/extlink&oid=6952194&loc=d3e1280-108306 + Details
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