FINANCIAL INSTRUMENTS 2 (Details) (Derivatives Energy Related Assets [Member], Supplier Concentration Risk [Member], USD $) In Millions, unless otherwise specified	Sep. 30, 2011
Derivatives Energy Related Assets [Member] \| Supplier Concentration Risk [Member]
Concentration Risk [Line Items]
Amount of derivatives - energy related assets with single retail counterparty	$ 10.8
Percentage of derivatives - energy related assets with a single retail counterparty (in hundredths)	29.30%

This item represents disclosure of all significant concentrations of credit risk or market risk arising from the subject financial instrument (as defined), whether from an individual counterparty or groups of counterparties.

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+ Details