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Subsequent Events Subsequent Events - Narrative (Details) $ in Millions |  | 3 Months Ended
--- | --- | ---
May. 04, 2016 USD ($) a | Mar. 31, 2016 USD ($) | Mar. 31, 2015 USD ($)
Subsequent Event [Line Items] |  |  |
Proceeds from divestitures of proved and unproved properties |  | $ 62 | $ 21
STACK Play [Member] | Subsequent Event [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Number Of Net Acres | a | 42,000 |  |
Proceeds from divestitures of proved and unproved properties | $ 470 |  |

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- Definition Number Of Net Acres + References No definition available. + Details
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- Definition The cash inflow to dispose of long-lived, physical assets and mineral interests in oil and gas properties used for normal oil and gas operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3179-108585 + Details
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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
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- Details
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- Details
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