Divestitures - Additional Information (Details) (USD $)
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6 Months Ended | 0 Months Ended | |||
---|---|---|---|---|---|
Jun. 30, 2013
Permian Properties
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Jun. 30, 2013
Permian Properties
Noncontrolling Interest
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Feb. 25, 2014
Gulf Properties
|
Jun. 30, 2014
Gulf Properties
|
Feb. 25, 2014
Gulf Properties
Asset Retirement Obligations
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Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] | |||||
Proceeds from sale of oil and natural gas properties | $ 2,600,000,000 | $ 703,500,000 | |||
Asset retirement obligations assumed | 366,000,000 | ||||
Gain (loss) on sale of oil and gas property | (399,100,000) | (71,700,000) | 0 | ||
Contingent consideration, liability | 9,446,000 | 12,028,000 | |||
Restricted deposits | 28,000,000 | ||||
Consideration receivable, current | $ 14,000,000 |