v2.4.0.6

Income Taxes (Textuals) (Details) (USD $) | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2011 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009
Intraperiod income tax [Line Items] |  |  |  |  |
Deferred Tax Assets, Operating Loss Carryforwards, Domestic |  | $ 7,300,000,000 |  |  |
Income Tax Expense (Benefit) [Abstract] |  |  |  |  |
Deferred income tax liability, net of current |  | 9,000,000 | 42,000,000 | (86,000,000) |
Federal statutory tax expense (benefit) rate |  | 35.00% | (35.00%) | (35.00%) |
Income Tax Disclosure (Textuals) [Abstract] |  |  |  |  |
One time tax benefit from consolidation | 76,000,000 |  |  |  |
Unrecognized Tax Benefits |  | 92,000,000 | 74,000,000 | 88,000,000 | 98,000,000
Unrecognized Tax Benefits that Would Impact Effective Tax Rate |  | 36,000,000 |  |  |
Unrecognized Tax Benefits Resulting in Net Operating Loss Carryforward |  | 56,000,000 |  |  |
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued |  | 24,000,000 |  |  |
Cancellation of Debt Income Related to Stock Distribution |  |  | 66,000,000 |  |
Cancellation of Debt Income Related to Stock Distribution for State Income Tax Purposes |  |  | 39,000,000 |  |
Operating Loss Carryforwards |  | 7,300,000,000 |  |  |
Operating Loss Carryforwards Available To Offset Future Income |  | 7,100,000,000 |  |  |
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost |  | 10,000,000 |  |  |
Operating Loss Carryforwards Not Limited On Use |  | 2,400,000,000 |  |  |
NOLs expected to expire unutilized |  |  | 640,000,000 |  |
NOLs expected to expire unutilized due to carryforward time constraints |  | 117,000,000 |  |  |
Reduction In State NOLs |  |  | 44,000,000 |  |
Reduction Of State Taxable Income |  |  | 24,000,000 |  |
Valuation allowance |  | 2,222,000,000 | 2,336,000,000 |  |
Valuation Allowance, Deferred Tax Asset, Change in Amount |  | (114,000,000) | (50,000,000) | (186,000,000) |
Tax refund due to foreign dividend income treatment |  | 10,000,000 |  |  |
Tax refund plus accrued interest due to foreign dividend income treatment |  | 13,000,000 |  |  |
Accrued interest on foreign dividend refund |  | 3,000,000 |  |  |
Deferred Tax Assets, Operating Loss Carryforwards, State and Local |  | 4,000,000,000 |  |  |
Deferred Tax Assets, Operating Loss Carryforwards, Foreign |  | 1,000,000,000 |  |  |
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range of Change, Lower Bound |  | 0 |  |  |
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range of Change, Upper Bound |  | 28,000,000 |  |  |
Intraperiod tax expense from a prior period [Member] |  |  |  |  |
Income Tax Expense (Benefit) [Abstract] |  |  |  |  |
Deferred income tax liability, net of current |  |  |  | $ 13,000,000 |

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- Definition The sum of income tax expense or benefit for the period that has been allocated among continuing operations, discontinued operations, extraordinary items, other comprehensive income, and items charged or credited directly to shareholders' equity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 45 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=18498875&loc=d3e38679-109324 + Details
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