|
Acquisitions and Divestitures (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | |
|---|---|---|
|
Mar. 31, 2015
|
Mar. 31, 2014
|
|
| Operating expenses | ||
| Income from discontinued operations, net of tax | $ 0 | $ 10 |
| Arklatex Area, South Louisiana Wilcox Area, And Brazilian Operations | ||
| Summary of operating results of discontinued operations | ||
| Operating revenues | 31 | |
| Operating expenses | ||
| Transportation costs | 3 | |
| Lease operating expense | 13 | |
| Depreciation, depletion and amortization | 6 | |
| Impairment charges | 3 | |
| Other expense | 5 | |
| Total operating expenses | 30 | |
| Gain on sale of assets | 13 | |
| Other income | 3 | |
| Income from discontinued operations before income taxes | 17 | |
| Income tax expense | 7 | |
| Income from discontinued operations, net of tax | 10 | |
| Brazilian operations | ||
| Operating expenses | ||
| Impairment charges | $ 3 | |