v2.4.0.6

Variable Interest Entities and Unconsolidated Investments (Tables) | 12 Months Ended
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Dec. 31, 2012
Variable Interest Entities and Unconsolidated Investments [Abstract] |
Schedule of Condensed Financial Statements | Aggregated summarized financial data for our unconsolidated subsidiaries is set forth below (in millions): Condensed Combined Balance Sheets of Our Unconsolidated Subsidiaries December 31, 2012 and 2011
| 2012 |  | 2011
Assets: |  |  |
Cash and cash equivalents | $ | 64 |  |  | $ | 76 |
Current assets | 30 |  |  | 37 |
Property, plant and equipment, net | 648 |  |  | 656 |
Other assets | 4 |  |  | 3 |
Total assets | $ | 746 |  |  | $ | 772 |
Liabilities: |  |  |
Current maturities of long-term debt | $ | 25 |  |  | $ | 24 |
Current liabilities | 36 |  |  | 47 |
Long-term debt | 423 |  |  | 438 |
Long-term derivative liabilities | 84 |  |  | 85 |
Total liabilities | 568 |  |  | 594 |
Member’s interest | 178 |  |  | 178 |
Total liabilities and member’s interest | $ | 746 |  |  | $ | 772 |
Condensed Combined Statements of Operations of Our Unconsolidated Subsidiaries For the Years Ended December 31, 2012, 2011 and 2010
| 2012 |  | 2011 |  | 2010
Revenues | $ | 247 |  |  | $ | 277 |  |  | $ | 228 |
Operating expenses | 171 |  |  | 208 |  |  | 183 |
Income from operations | 76 |  |  | 69 |  |  | 45 |
Interest expense, net of interest income | 27 |  |  | 30 |  |  | 27 |
Other (income) expense, net | (2 | ) |  | 2 |  |  | — |
Net income | $ | 51 |  |  | $ | 37 |  |  | $ | 18 |
Schedule of Equity Method Investments | At December 31, 2012 and 2011, our equity method investments included on our Consolidated Balance Sheets were comprised of the following (in millions):
| Ownership Interest as of December 31, 2012 |  | 2012 |  | 2011
Greenfield LP | 50% |  | $ | 69 |  |  | $ | 72 |
Whitby | 50% |  | 12 |  |  | 8 |
Total investments |  |  | $ | 81 |  |  | $ | 80 |
Income (Loss) From Unconsolidated Investments in Power Plants and Distributions | Our equity interest in the net income from Greenfield LP and Whitby for the years ended December 31, 2012, 2011 and 2010, are recorded in (income) from unconsolidated investments in power plants. The following table sets forth details of our (income) from unconsolidated investments in power plants and distributions for the years indicated (in millions):
| (Income) from Unconsolidated Investments in Power Plants |  | Distributions
| 2012 |  | 2011 |  | 2010 |  | 2012 |  | 2011 |  | 2010
Greenfield LP | $ | (17 | ) |  | $ | (12 | ) |  | $ | (8 | ) |  | $ | 22 |  |  | $ | 2 |  |  | $ | 6 |
Whitby | (11 | ) |  | (9 | ) |  | (8 | ) |  | 7 |  |  | 4 |  |  | 5 |
Total | $ | (28 | ) |  | $ | (21 | ) |  | $ | (16 | ) |  | $ | 29 |  |  | $ | 6 |  |  | $ | 11 |

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- Definition Tabular disclosure of equity method investments in common stock. The disclosure may include: (a) the name of each investee or group of investments for which combined disclosure is appropriate, (2) the percentage ownership of common stock, (3) the difference, if any, between the carrying amount of an investment and the value of the underlying equity in the net assets and the accounting treatment of difference, if any, and (4) the aggregate value of each identified investment based on its quoted market price, if available. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 20 -Subparagraph a, b -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. + Details
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