Fair Value Measurements and Risk (Tables)	9 Months Ended
Sep. 30, 2012
Fair Value Measurements and Risk
Schedule of assets and liabilities measured at fair value on a recurring basis	Table 1
Schedule of the location and fair values of derivative instruments included in the Consolidated Balance Sheets	Table 2
Schedule of the location and amount of gains and losses on derivative instruments included in the Consolidated Statements of Operations, or initially recognized in other comprehensive income (loss) ("OCI"), when applicable	Table 3

Tabular disclosure of the location and amount of gains and losses reported in the statement of financial performance, or when applicable, the statement of financial position. For example, (a) gains and losses recognized in the income statement on derivative instruments designated and qualifying as hedging instruments in fair value hedges and related hedged items designated and qualifying in fair value hedges and (b) gains and losses initially recognized in other comprehensive income on derivative instruments designated and qualifying as cash flow hedges.

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Tabular disclosure of the location and fair value amounts of derivative instruments (and nonderivative instruments that are designated and qualify as hedging instruments) reported in the statement of financial position.

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