v2.4.0.6

Derivative and Financial Instruments - Commodity Notional (Details 2) | Sep. 30, 2012 MMBbls | Dec. 31, 2011 MMBbls
--- | --- | ---
Crude oil, refined products and natural gas liquids [Member] |  |
Trading Activity, Gains and Losses, Net [Line Items] |  |
Commodity derivatives - material net exposures | 0 | (13)
Natural gas and power, Fixed price [Member] |  |
Trading Activity, Gains and Losses, Net [Line Items] |  |
Commodity derivatives - material net exposures | (64,000,000,000) | (57,000,000,000)
Natural gas and power, Basis [Member] |  |
Trading Activity, Gains and Losses, Net [Line Items] |  |
Commodity derivatives - material net exposures | 97,000,000,000 | (25,000,000,000)

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- Definition Aggregate notional amount of price risk derivatives not designated as a hedging instrument with notional amounts expressed in nonmonetary units. For example the number of barrels specified in a fuel oil forward purchase contract. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5579245-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Notional Amount -URI http://asc.fasb.org/extlink&oid=6519104 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5580258-113959 + Details
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- Details
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