v2.3.0.15

Variable Interest Entities And Unconsolidated Investments (Details 4) In Millions, unless otherwise specified | Sep. 30, 2011 USD ($) | Dec. 31, 2010 USD ($) | Sep. 30, 2011 Greenfield CAD | Sep. 30, 2011 Whitby | Sep. 30, 2011 Minimum Inland Empire Energy Center | Sep. 30, 2011 Maximum Inland Empire Energy Center | Sep. 30, 2011 Riverside Energy Center and OMEC | Sep. 30, 2011 Inland Empire Energy Center
--- | --- | --- | --- | --- | --- | --- | --- | ---
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Power generation capacity (in Megawatts) | 11,372 | 13,553 | 1,038 | 50 |  |  | 1,211 | 775
Term loan years |  |  | 18 |  |  |  |  |
Term loan amount |  |  | 648 |  |  |  |  |
Project financing interest rate spread - Canadian LIBOR |  |  | 1.125% |  |  |  |  |
Project financing interest rate spread - Canadian Prime Rate |  |  | 0.125% |  |  |  |  |
Call option exercise years |  |  |  |  | 7 | 14 |  |
Put option exercise year |  |  |  |  |  |  |  | 15
Variable Interest Entities and Unconsolidated Investments (Textuals) [Abstract] |  |  |  |  |  |  |  |
Equity method investee debt | 476 | 494 |  |  |  |  |  |
Pro rata share of debt | $ 238 | $ 247 |  |  |  |  |  |

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