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Business and Basis of Presentation Correction of an Error in Prior Periods (Tables) | 6 Months Ended
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Jun. 30, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Schedule of Error Corrections and Prior Period Adjustments | The following tables show the impact of the error correction to the three and six months ended June 30, 2013.
|  | Three Months Ended June 30, 2013
Consolidated Statement of Comprehensive Income (Loss) |  | As Reported |  | Correction |  | As Revised
|  | (in millions, except per share amounts)
Operating revenue |  | $ | 345 |  |  | $ | (10 | ) |  | $ | 335 |
Operating income (loss) |  | (136 | ) |  | (10 | ) |  | (146 | )
Provision (benefit) for income taxes |  | (148 | ) |  | (9 | ) |  | (157 | )
Net income (loss) |  | (68 | ) |  | (1 | ) |  | (69 | )
Comprehensive income (loss) |  | (75 | ) |  | (1 | ) |  | (76 | )
Basic and diluted earnings (loss) per common share |  | (4.56 | ) |  | (0.02 | ) |  | (4.58 | )
|  | Six Months Ended June 30, 2013
Consolidated Statement of Comprehensive Income (Loss) |  | As Reported |  | Correction |  | As Revised
|  | (in millions, except per share amounts)
Operating revenue |  | $ | 633 |  |  | $ | (10 | ) |  | $ | 623 |
Operating income (loss) |  | (117 | ) |  | (10 | ) |  | (127 | )
Provision (benefit) for income taxes |  | (149 | ) |  | (9 | ) |  | (158 | )
Net income (loss) |  | (127 | ) |  | (1 | ) |  | (128 | )
Comprehensive income (loss) |  | (133 | ) |  | (1 | ) |  | (134 | )
Basic and diluted earnings (loss) per common share |  | (10.08 | ) |  | (0.04 | ) |  | (10.12 | )
|  | Six Months Ended June 30, 2013
Consolidated Statement of Cash Flows |  | As Reported |  | Correction |  | As Revised
|  | (in millions)
Net (loss) |  | $ | (127 | ) |  | $ | (1 | ) |  | $ | (128 | )
Provision (benefit) for deferred income taxes |  | (151 | ) |  | (9 | ) |  | (160 | )
Change in accounts payable and accrued liabilities |  | (5 | ) |  | 10 |  |  | 5 |
Net cash provided by operating activities |  | 139 |  |  | — |  |  | 139 |

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- Definition Tabular disclosure of prior period adjustments to previously issued financial statements including (1) the effect of the correction on each financial statement line item and any per-share amounts affected for each prior period presented (2) the cumulative effect of the change on retained earnings or other appropriate components of equity or net assets in the statement of financial position, as of the beginning of the earliest period presented, and (3) the effect of the prior period adjustments (both gross and net of applicable income tax) on the net income of each prior period presented in the entity's annual report for the year in which the adjustments are made. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=28359718&loc=d3e22644-107794 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=28359718&loc=d3e22663-107794 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=28359718&loc=d3e22658-107794 + Details
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