| **Investments in Non-Consolidated Affiliates (Details) (USD $)In Millions, unless otherwise specified**          | 12 Months Ended | 7 Months Ended | 11 Months Ended | 12 Months Ended |
|------------------------------------------------------------------------------------------------------------------|-----------------|----------------|-----------------|-----------------|
||
| **Assets:**                                                                                                      |            |                |            |            |  |   |   |   |
| Current assets                                                                                                   | $ 214           |                | $ 341           |            |  |   |   |   |
| Noncurrent assets                                                                                                | 238             |                | 257             |            |  |   |   |   |
| Total assets                                                                                                     | 452             |                | 598             |            |  |   |   |   |
| **Liabilities and equity:**                                                                                      |            |                |            |            |  |   |   |   |
| Current liabilities                                                                                              | 118             |                | 192             |            |  |   |   |   |
| Noncurrent liabilities                                                                                           | 117             |                | 159             |            |  |   |   |   |
| Total liabilities                                                                                                | 235             |                | 351             |            |  |   |   |   |
| **Partners' capital and stockholders' equity:**                                                                  |            |                |            |            |  |   |   |   |
| NIC                                                                                                              | 73              |                | 108             |            |  |   |   |   |
| Third parties                                                                                                    | 144             |                | 139             |            |  |   |   |   |
| Total partners' capital and stockholders' equity                                                                 | 217             |                | 247             |            |  |   |   |   |
| Total liabilities and equity                                                                                     | 452             |                | 598             |            |  |   |   |   |
| **Equity Method Investment, Summarized Financial Information, Income Statement [Abstract]**                      |            |                |            |            |  |   |   |   |
| Net revenue                                                                                                      | 938             | [1]            | 659             | 727             | [2] | 118 | 235 | 63 |
| Costs, expenses, and income tax expense                                                                          | 1,069           | [1]            | 755             | 643             | [2] |   |   |   |
| Net loss                                                                                                         | (131)           | [1]            | (96)            | 84              | [2] | 102 | (83) | (72) |
| **Amounts due to and due from affilitiates [Abstract]**                                                          |            |                |            |            |  |   |   |   |
| Receivables due from affiliates                                                                                  | 30              |                | 57              |            |  |   |   |   |
| Payables due to affiliates                                                                                       | 29              |                | 91              |            |  |   |   |   |
| Net expenses                                                                                                     |            |                |            |            |  | 16 | 318 | 135 |
| Loss before tax expense                                                                                          |            |                |            |            |  | $ 102 | $ (83) | $ (72) |
| Percentage Of Combined Assets Liabilities And Equity Of Equity Method Affiliates                                 | 100.00%         |                |            |            |  |   |   |   |
| Percentage Of Combined Results Of Operations Of Equity Method Affiliates                                         | 100.00%         |                |            |            |  |   |   |   |
|                                                                                                                  |
| [1]Includes amounts for NC2 through September 29, 2011.[2]Includes amounts for BDP and BDT through May 31, 2009. |

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For an unclassified balance sheet, amount of receivables due from an entity that is affiliated with the reporting entity by means of direct or indirect ownership.
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Amount of payable due to an entity that is affiliated with the reporting entity by means of direct or indirect ownership.
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The amount of equity (capital) attributable to the equity method investment of the entity.
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The amount of liabilities reported by an equity method investment of the entity.
+ References
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| - Definition
The amount of liabilities and equity reported by an equity method investment of the entity.
+ References
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| - Definition
The amount of equity (capital) attributable to noncontrolling interests of an equity method investment of the entity.
+ References
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|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of net income (loss) reported by an equity method investment of the entity.
+ References
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|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of noncurrent assets reported by an equity method investment of the entity.
+ References
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|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of noncurrent liabilities reported by an equity method investment of the entity.
+ References
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| - Definition
The amount of revenue from sale of goods and services reduced by sales returns, allowances, and discounts reported by an equity method investment of the entity.
+ References
No definition available.
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