v2.4.0.8

Derivative Instruments (Details 2) (Details) (USD $) In Millions, unless otherwise specified | Mar. 31, 2014 | Dec. 31, 2013
--- | --- | ---
Derivatives, Fair Value [Line Items] |  |
Derivative assets, current | $ 655 | $ 445
Derivative Assets, Noncurrent | 174 | 105
Total derivative assets | 829 | 550
Current derivative liabilities | 728 | 451
Derivative Liabilities, Noncurrent | 230 | 243
Total derivative liabilities | 958 | 694
Net derivative assets (liabilities) | (129) | (144)
Designated as Hedging Instrument [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Total derivative assets | 7 | 9
Total derivative liabilities | 113 | 115
Not Designated as Hedging Instrument [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Total derivative assets | 822 | 541
Total derivative liabilities | 845 | 579
Interest Rate Swap [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Derivative assets, current | 0 | 0
Derivative Assets, Noncurrent | 7 | 9
Total derivative assets | 7 | 9
Current derivative liabilities | 47 | 47
Derivative Liabilities, Noncurrent | 79 | 82
Total derivative liabilities | 126 | 129
Net derivative assets (liabilities) | (119) | (120)
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Total derivative assets | 7 | 9
Total derivative liabilities | 113 | 115
Interest Rate Swap [Member] | Not Designated as Hedging Instrument [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Total derivative assets | 0 | 0
Total derivative liabilities | 13 | 14
Commodity Option [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Derivative assets, current | 655 | 445
Derivative Assets, Noncurrent | 167 | 96
Total derivative assets | 822 | 541
Current derivative liabilities | 681 | 404
Derivative Liabilities, Noncurrent | 151 | 161
Total derivative liabilities | 832 | 565
Net derivative assets (liabilities) | (10) | (24)
Commodity Option [Member] | Not Designated as Hedging Instrument [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Total derivative assets | 822 | 541
Total derivative liabilities | $ 832 | $ 565

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- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other 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, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=28364263&loc=d3e13433-108611 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=28364263&loc=d3e13495-108611 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=20225523&loc=SL20225862-175312 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41271-113958 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Current Assets -URI http://asc.fasb.org/extlink&oid=6509628 + Details
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