v2.3.0.11

Derivative Instruments (Details 2) (USD $) In Millions | Jun. 30, 2011 | Dec. 31, 2010
--- | --- | ---
Derivatives recorded on BS by location [Line Items] |  |
Current derivative assets | $ 569 | $ 725
Long-term derivative assets | 110 | 170
Total derivative assets | 679 | 895
Current derivative liabilities | 643 | 718
Long-term derivative liabilities | 221 | 370
Total derivative liabilities | 864 | 1,088
Net derivative assets (liabilities) | (185) | (193)
Derivative asset fair value | 679 | 895
Derivative liability fair value | 864 | 1,088
Interest Rate Swaps |  |
Derivatives recorded on BS by location [Line Items] |  |
Current derivative assets |  |
Long-term derivative assets | 1 | 4
Total derivative assets | 1 | 4
Current derivative liabilities | 195 | 197
Long-term derivative liabilities | 119 | 174
Total derivative liabilities | 314 | 371
Net derivative assets (liabilities) | (313) | (367)
Interest Rate Swaps | Designated as cash flow hedge |  |
Derivatives recorded on BS by location [Line Items] |  |
Derivative asset fair value |  | 2
Derivative liability fair value | 49 | 143
Interest Rate Swaps | Not designated as cash flow hedge |  |
Derivatives recorded on BS by location [Line Items] |  |
Derivative asset fair value | 1 | 2
Derivative liability fair value | 265 | 228
Commodity instruments |  |
Derivatives recorded on BS by location [Line Items] |  |
Current derivative assets | 569 | 725
Long-term derivative assets | 109 | 166
Total derivative assets | 678 | 891
Current derivative liabilities | 448 | 521
Long-term derivative liabilities | 102 | 196
Total derivative liabilities | 550 | 717
Net derivative assets (liabilities) | 128 | 174
Commodity instruments | Designated as cash flow hedge |  |
Derivatives recorded on BS by location [Line Items] |  |
Derivative asset fair value | 104 | 161
Derivative liability fair value | 41 | 52
Commodity instruments | Not designated as cash flow hedge |  |
Derivatives recorded on BS by location [Line Items] |  |
Derivative asset fair value | 574 | 730
Derivative liability fair value | 509 | 665
Designated as cash flow hedge |  |
Derivatives recorded on BS by location [Line Items] |  |
Derivative asset fair value | 104 | 163
Derivative liability fair value | 90 | 195
Not designated as cash flow hedge |  |
Derivatives recorded on BS by location [Line Items] |  |
Derivative asset fair value | 575 | 732
Derivative liability fair value | $ 774 | $ 893

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