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Derivatives and Risk Management Activities (Details 5) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2014 contract | Jun. 30, 2013 | Jun. 30, 2014 contract | Jun. 30, 2013 | Dec. 31, 2013 contract
Derivatives disclosures |  |  |  |  |
Asset Derivatives Fair Value | $ 94 |  | $ 94 |  | $ 133
Liability Derivatives Fair Value | (75) |  | (75) |  | (157)
Net gain/(loss) deferred in AOCI | (118) |  | (118) |  |
Net gain/(loss) expected to be reclassified to earnings in next 12 months |  |  | (4) |  |
Gain/(loss) expected to be reclassified to earnings through 2045 |  |  | (114) |  |
Net deferred gain/(loss) recognized in AOCI on derivatives (effective portion) | (19) | 35 | (51) | 63 |
Broker receivable | 66 |  | 66 |  | 161
Initial margin | 54 |  | 54 |  | 85
Variation margin posted/(returned) |  |  | 12 |  | 76
Number of outstanding derivatives containing credit-risk related contingent features | 0 |  | 0 |  | 0
Derivative credit-risk related contingent features |  |  | none of our outstanding derivatives contained credit-risk related contingent features that would result in a material adverse impact to us upon any change in our credit ratings |  |
Commodity Derivatives |  |  |  |  |
Derivatives disclosures |  |  |  |  |
Net deferred gain/(loss) recognized in AOCI on derivatives (effective portion) |  | 3 | (12) | 11 |
Interest Rate Derivatives |  |  |  |  |
Derivatives disclosures |  |  |  |  |
Net deferred gain/(loss) recognized in AOCI on derivatives (effective portion) | (19) | 32 | (39) | 52 |
Derivatives designated as hedging instruments |  |  |  |  |
Derivatives disclosures |  |  |  |  |
Asset Derivatives Fair Value | 9 |  | 9 |  | 67
Liability Derivatives Fair Value | (12) |  | (12) |  | (24)
Derivatives designated as hedging instruments | Commodity Derivatives | Other current assets |  |  |  |  |
Derivatives disclosures |  |  |  |  |
Asset Derivatives Fair Value | 7 |  | 7 |  | 36
Liability Derivatives Fair Value | (4) |  | (4) |  | (24)
Derivatives designated as hedging instruments | Commodity Derivatives | Other long-term assets |  |  |  |  |
Derivatives disclosures |  |  |  |  |
Asset Derivatives Fair Value | 1 |  | 1 |  | 5
Derivatives designated as hedging instruments | Interest Rate Derivatives | Other current assets |  |  |  |  |
Derivatives disclosures |  |  |  |  |
Asset Derivatives Fair Value | 1 |  | 1 |  |
Derivatives designated as hedging instruments | Interest Rate Derivatives | Other long-term assets |  |  |  |  |
Derivatives disclosures |  |  |  |  |
Asset Derivatives Fair Value |  |  |  |  | 26
Derivatives designated as hedging instruments | Interest Rate Derivatives | Other current liabilities |  |  |  |  |
Derivatives disclosures |  |  |  |  |
Liability Derivatives Fair Value | (8) |  | (8) |  |
Derivatives not designated as hedging instruments |  |  |  |  |
Derivatives disclosures |  |  |  |  |
Asset Derivatives Fair Value | 85 |  | 85 |  | 66
Liability Derivatives Fair Value | (63) |  | (63) |  | (133)
Derivatives not designated as hedging instruments | Commodity Derivatives | Other current assets |  |  |  |  |
Derivatives disclosures |  |  |  |  |
Asset Derivatives Fair Value | 76 |  | 76 |  | 60
Liability Derivatives Fair Value | (56) |  | (56) |  | (117)
Derivatives not designated as hedging instruments | Commodity Derivatives | Other long-term assets |  |  |  |  |
Derivatives disclosures |  |  |  |  |
Asset Derivatives Fair Value | 2 |  | 2 |  | 5
Liability Derivatives Fair Value | (1) |  | (1) |  | (6)
Derivatives not designated as hedging instruments | Commodity Derivatives | Other current liabilities |  |  |  |  |
Derivatives disclosures |  |  |  |  |
Asset Derivatives Fair Value |  |  |  |  | 1
Liability Derivatives Fair Value | (1) |  | (1) |  | (5)
Derivatives not designated as hedging instruments | Commodity Derivatives | Other long-term liabilities |  |  |  |  |
Derivatives disclosures |  |  |  |  |
Asset Derivatives Fair Value | 1 |  | 1 |  |
Liability Derivatives Fair Value | (5) |  | (5) |  | (1)
Derivatives not designated as hedging instruments | Foreign Currency Derivatives | Other current assets |  |  |  |  |
Derivatives disclosures |  |  |  |  |
Asset Derivatives Fair Value | 6 |  | 6 |  |
Derivatives not designated as hedging instruments | Foreign Currency Derivatives | Other current liabilities |  |  |  |  |
Derivatives disclosures |  |  |  |  |
Liability Derivatives Fair Value |  |  |  |  | $ (4)

X
- Definition The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings through 2045. + References No definition available. + Details
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- Definition Represents the number of outstanding derivatives containing credit risk-related contingent features held by the entity at the reporting date. + References No definition available. + Details
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- Definition Increase (decrease) to initial margin for the variation margin posted by (returned to) the reporting entity. + References No definition available. + Details
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- Definition Accumulated change, net of tax, in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Includes an entity's share of an equity investee's Increase or Decrease in deferred hedging gains or losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=28358780&loc=SL7669686-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=28358780&loc=d3e637-108580 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=28358780&loc=d3e681-108580 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=28358780&loc=SL7669646-108580 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=7668309&loc=d3e80784-113994 + Details
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- Definition The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=7668309&loc=d3e80748-113994 + Details
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- Definition Amount of right to receive cash collateral under master netting arrangements that have not been offset against derivative liabilities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=28370219&loc=SL20226016-175313 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (d)(2) -URI http://asc.fasb.org/extlink&oid=20225523&loc=SL20225862-175312 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=7476318&loc=d3e41678-113959 + Details
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- Definition Description of the existence and nature of credit-risk-related contingent features related to derivative instruments (and nonderivative instruments that are designated and qualify as hedging instruments) that are in a net liability position at the end of the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4H -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624258-113959 + Details
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- Definition Fair value before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=28370219&loc=SL20226000-175313 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=20225523&loc=SL20225862-175312 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624163-113959 + Details
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- Definition The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959 + Details
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- Definition The amount of cash or securities placed with a broker or counterparty as security for a trading or derivatives securities position which was partially obtained with funds provided by the broker dealer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.8,17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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