Document And Entity Information - shares |
6 Months Ended | |
|---|---|---|
Jun. 30, 2016 |
Jul. 25, 2016 |
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| Document And Entity Information [Abstract] | ||
| Document Type | 10-Q | |
| Amendment Flag | false | |
| Document Period End Date | Jun. 30, 2016 | |
| Document Fiscal Year Focus | 2016 | |
| Document Fiscal Period Focus | Q2 | |
| Trading Symbol | PXD | |
| Entity Registrant Name | PIONEER NATURAL RESOURCES CO | |
| Entity Central Index Key | 0001038357 | |
| Current Fiscal Year End Date | --12-31 | |
| Entity Filer Category | Large Accelerated Filer | |
| Entity Common Stock, Shares Outstanding | 169,607,877 |
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- Definition If the value is true, then the document is an amendment to previously-filed/accepted document. No definition available.
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- Definition End date of current fiscal year in the format --MM-DD. No definition available.
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- Definition This is focus fiscal period of the document report. For a first quarter 2006 quarterly report, which may also provide financial information from prior periods, the first fiscal quarter should be given as the fiscal period focus. Values: FY, Q1, Q2, Q3, Q4, H1, H2, M9, T1, T2, T3, M8, CY. No definition available.
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- Definition This is focus fiscal year of the document report in CCYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006. No definition available.
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- Definition The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented. If there is no historical data in the report, use the filing date. The format of the date is CCYY-MM-DD. No definition available.
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- Definition The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word "Other". No definition available.
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- Definition A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument. No definition available.
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- Definition Indicate whether the registrant is one of the following: (1) Large Accelerated Filer, (2) Accelerated Filer, (3) Non-accelerated Filer, (4) Smaller Reporting Company (Non-accelerated) or (5) Smaller Reporting Accelerated Filer. Definitions of these categories are stated in Rule 12b-2 of the Exchange Act. This information should be based on the registrant's current or most recent filing containing the related disclosure. No definition available.
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- Definition The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Trading symbol of an instrument as listed on an exchange. No definition available.
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- Definition Document and Entity Information [Abstract] No definition available.
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- Definition Other Assets, Current [Abstract] No definition available.
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- References No definition available.
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| X | ||||||||||
- Definition Carrying value as of the balance sheet date of obligations incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all currently due domestic and foreign income tax obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders. Includes adjustments to additional paid in capital. Some examples of such adjustments include recording the issuance of debt with a beneficial conversion feature and certain tax consequences of equity instruments awarded to employees. Use this element for the aggregate amount of additional paid-in capital associated with common and preferred stock. For additional paid-in capital associated with only common stock, use the element additional paid in capital, common stock. For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred stock. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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| X | ||||||||||
- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences, netted by jurisdiction and classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- 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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- 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 after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Fair value, after the effects of master netting arrangements, of a financial liability or 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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Fair value, after the effects of master netting arrangements, of a financial liability or 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 after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of receivables due from an entity that is affiliated with the reporting entity by means of direct or indirect ownership, due within 1 year (or 1 business cycle). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of payable due to an entity that is affiliated with the reporting entity by means of direct or indirect ownership. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Carrying amount due within one year of the balance sheet date (or one operating cycle, if longer) from tax authorities as of the balance sheet date representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The total amount of investments that are intended to be held for an extended period of time (longer than one operating cycle). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition An amount representing an agreement for an unconditional promise by the maker to pay the Entity (holder) a definite sum of money at a future date(s) within one year of the balance sheet date or the normal operating cycle, whichever is longer. Such amount may include accrued interest receivable in accordance with the terms of the debt. The debt also may contain provisions including a discount or premium, payable on demand, secured, or unsecured, interest bearing or noninterest bearing, among a myriad of other features and characteristics. This amount does not include amounts related to receivables held-for-sale. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of accumulated depreciation, depletion and amortization of oil and gas property carried under the successful effort method. Oil and gas property include, but not limited to, the entity's wells and related equipment and facilities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Oil and gas properties net of accumulated depreciation, depletion, amortization, impairment, and abandonment, carried under the successful effort method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition Aggregate carrying amount, as of the balance sheet date, of current assets not separately disclosed in the balance sheet. Current assets are expected to be realized or consumed within one year (or the normal operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Aggregate carrying amount, as of the balance sheet date, of noncurrent assets not separately disclosed in the balance sheet. Noncurrent assets are expected to be realized or consumed after one year (or the normal operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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| X | ||||||||||
- Definition Aggregate carrying amount of current liabilities (due within one year or within the normal operating cycle if longer) not separately disclosed in the balance sheet. Includes costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered and of liabilities not separately disclosed. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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| X | ||||||||||
- Definition Aggregate carrying amount, as of the balance sheet date, of noncurrent obligations not separately disclosed in the balance sheet. Noncurrent liabilities are expected to be paid after one year (or the normal operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of asset related to consideration paid in advance for costs that provide economic benefits within a future period of one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Oil and Gas properties with proved reserves under the successful effort method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The cumulative amount of the reporting entity's undistributed earnings or deficit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Investments which are intended to be sold in the short term (usually less than one year or the normal operating cycle, whichever is longer) including trading securities, available-for-sale securities, held-to-maturity securities, and other short-term investments not otherwise listed in the existing taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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| X | ||||||||||
- Definition The amount allocated to treasury stock. Treasury stock is common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Oil and Gas properties with unproved reserves under the successful effort method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Consolidated Balance Sheets (Parenthetical) - $ / shares |
Jun. 30, 2016 |
Dec. 31, 2015 |
|---|---|---|
| Statement of Financial Position [Abstract] | ||
| Common stock, par value | $ 0.01 | $ 0.01 |
| Common stock, shares authorized | 500,000,000 | 500,000,000 |
| Common Stock, Shares, Issued | 173,187,409 | 152,775,920 |
| Treasury Stock, Shares | 3,585,628 | 3,396,220 |
| X | ||||||||||
- Definition Face amount or stated value per share of common stock. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Consolidated Statements Of Operations - USD ($) $ in Thousands, shares in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2016 |
Jun. 30, 2015 |
Jun. 30, 2016 |
Jun. 30, 2015 |
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| Revenues and other income: | ||||
| Oil and gas | $ 613,000 | $ 596,000 | $ 1,022,000 | $ 1,113,000 |
| Sales of purchased oil and gas | 395,000 | 236,000 | 618,000 | 339,000 |
| Interest and other | 6,000 | 7,000 | 13,000 | 14,000 |
| Derivative gains, net | (229,000) | (197,000) | (186,000) | 44,000 |
| Gain (loss) on disposition of assets, net | 1,000 | 2,000 | 3,000 | 3,000 |
| Total revenues and other income | 786,000 | 644,000 | 1,470,000 | 1,513,000 |
| Costs and expenses: | ||||
| Oil and gas production | 141,000 | 163,000 | 297,000 | 343,000 |
| Production and ad valorem taxes | 36,000 | 37,000 | 65,000 | 76,000 |
| Depletion, depreciation and amortization | 384,000 | 329,000 | 737,000 | 639,000 |
| Purchased oil and gas | 410,000 | 237,000 | 653,000 | 345,000 |
| Impairment of oil and gas properties | 0 | 0 | 32,000 | 138,000 |
| Exploration and abandonments | 18,000 | 28,000 | 77,000 | 54,000 |
| General and administrative | 80,000 | 83,000 | 154,000 | 165,000 |
| Accretion of discount on asset retirement obligations | 5,000 | 3,000 | 9,000 | 6,000 |
| Interest | 56,000 | 46,000 | 111,000 | 92,000 |
| Other | 67,000 | 58,000 | 154,000 | 107,000 |
| Costs and Expenses | 1,197,000 | 984,000 | 2,289,000 | 1,965,000 |
| Income from continuing operations before income taxes | (411,000) | (340,000) | (819,000) | (452,000) |
| Income tax provision | 143,000 | 123,000 | 284,000 | 160,000 |
| Income from continuing operations | (268,000) | (217,000) | (535,000) | (292,000) |
| Loss from discontinued operations, net of tax | 0 | (1,000) | 0 | (4,000) |
| Net income | (535,000) | (296,000) | ||
| Net income (loss) attributable to common stockholders | $ (268,000) | $ (218,000) | $ (535,000) | $ (296,000) |
| Basic earnings per share: | ||||
| Income from continuing operations | $ (1.63) | $ (1.45) | $ (3.28) | $ (1.95) |
| Loss from discontinued operations | 0.00 | (0.01) | 0.00 | (0.03) |
| Net income | (1.63) | (1.46) | (3.28) | (1.98) |
| Diluted earnings per share: | ||||
| Income from continuing operations | (1.63) | (1.45) | (3.28) | (1.95) |
| Loss from discontinued operations | 0.00 | (0.01) | 0.00 | (0.03) |
| Net income | $ (1.63) | $ (1.46) | $ (3.28) | $ (1.98) |
| Weighted average shares outstanding: | ||||
| Basic | 164 | 149 | 163 | 149 |
| Diluted | 164 | 149 | 163 | 149 |
| Dividends declared per share | $ 0.00 | $ 0.00 | $ 0.04 | $ 0.04 |
| Amounts attributable to common stockholders: | ||||
| Net income (loss) attributable to common stockholders | $ (268,000) | $ (218,000) | $ (535,000) | $ (296,000) |
| X | ||||||||||
- Definition Amount of accretion expense recognized during the period that is associated with an asset retirement obligation. Accretion expense measures and incorporates changes due to the passage of time into the carrying amount of the liability. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Aggregate dividends declared during the period for each share of common stock outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Cost of oil and gas purchased during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Total costs of sales and operating expenses for the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition The adjustment to expense previously capitalized costs of drilling exploratory wells when proved reserves are not found or when the entity obtains information that raises substantial doubt about the economic or operational viability of the project. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The expense recorded to reduce the value of oil and gas assets consisting of proved properties and unproved properties as the estimate of future successful production from these properties is reduced. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Sum of operating profit and nonoperating income or expense before Income or Loss from equity method investments, income taxes, extraordinary items, and noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses and taxes from ongoing operations before extraordinary items, and noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The amount of net income (loss) from continuing operations per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The amount of net income (loss) derived from continuing operations during the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount after tax of income (loss) from a discontinued operation including the portion attributable to the noncontrolling interest. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Per basic share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Per diluted share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of the cost of borrowed funds accounted for as interest expense. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Costs incurred to operate and maintain an entities' wells and related equipment and facilities, including depreciation and applicable operating costs of support equipment and facilities and other costs of operating and maintaining those wells and related equipment and facilities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Aggregate revenue during the period related to oil and gas business activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The aggregate amount of other expense amounts, the components of which are not separately disclosed on the income statement, resulting from ancillary business-related activities (that is, excluding major activities considered part of the normal operations of the business) also known as other nonoperating expense recognized during the period. Such amounts may include: (a) unusual costs, (b) loss on foreign exchange transactions, (c) losses on securities (net of profits), and (d) miscellaneous other expense items. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The aggregate amount of other income amounts, the components of which are not separately disclosed on the income statement, resulting from ancillary business-related activities (that is, excluding major activities considered part of the normal operations of the business) also known as other nonoperating income recognized for the period. Such amounts may include: (a) dividends, (b) interest on securities, (c) profits on securities (net of losses), and (d) miscellaneous other income items. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Revenue from sale of oil and gas purchased from other sources. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition All taxes not related to income of the entity or excise or sales taxes levied on the revenue of the entity that are not reported elsewhere. These taxes could include production, real estate, personal property, and pump tax. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Number of common stock issued as a result of granting or vesting of employee stock awards (including income tax benefits), and the shares of treasury stock purchases related to withholding taxes. No definition available.
|
| X | ||||||||||
- Definition Par value of share-based payments that vest or lapse during the period. No definition available.
|
| X | ||||||||||
- Definition Amount of increase in additional paid in capital (APIC) resulting from a tax benefit associated with share-based compensation plan other than an employee stock ownership plan (ESOP). Includes, but is not limited to, excess tax benefit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of paid and unpaid cash dividends declared for classes of stock, for example, but not limited to, common and preferred. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
|
| X | ||||||||||
- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Number of shares issued which are neither cancelled nor held in the treasury. No definition available.
|
| X | ||||||||||
- Definition Number of new stock issued during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Number of shares that have been repurchased during the period and are being held in treasury. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Consolidated Statement Of Equity (Parenthetical) - $ / shares |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2016 |
Jun. 30, 2015 |
Jun. 30, 2016 |
Jun. 30, 2015 |
|
| Statement of Stockholders' Equity [Abstract] | ||||
| Dividends declared per share | $ 0.00 | $ 0.00 | $ 0.04 | $ 0.04 |
| X | ||||||||||
- Definition Aggregate dividends declared during the period for each share of common stock outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Aggregate non-cash (income) loss and investing and financing cash flows from a disposal group. No definition available.
|
| X | ||||||||||
- Definition Non-cash amortization of unvested stock-based compensation during the operating period. No definition available.
|
| X | ||||||||||
- Definition The amount of noncash dry hole and unproved property abandonment expense during the period. No definition available.
|
| X | ||||||||||
- Definition Impairment of Inventory and Other Property and Equipment No definition available.
|
| X | ||||||||||
- Definition Aggregate net noncash gain (loss) on commodity and interest rate derivative instruments. No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of noncash expense included in interest expense to allocate debt discount and premium, and the costs to issue debt and obtain financing over the related debt instruments. Alternate captions include noncash interest expense. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of accretion expense recognized during the period that is associated with an asset retirement obligation. Accretion expense measures and incorporates changes due to the passage of time into the carrying amount of the liability. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Includes effect from exchange rate changes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of cash inflow from realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The expense recorded to reduce the value of oil and gas assets consisting of proved properties and unproved properties as the estimate of future successful production from these properties is reduced. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The increase (decrease) during the reporting period in the aggregate amount of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The increase (decrease) during the period in the amount due for taxes based on the reporting entity's earnings or attributable to the entity's income earning process (business presence) within a given jurisdiction. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The increase (decrease) during the period in the net carrying value of derivative instruments reported as assets and liabilities that are due to be disposed of within one year (or the normal operating cycle, if longer). No definition available.
|
| X | ||||||||||
- Definition The increase (decrease) during the reporting period in income taxes receivable, which represents the amount due from tax authorities for refunds of overpayments or recoveries of income taxes paid. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The increase (decrease) during the reporting period in interest payable, which represents the amount owed to note holders, bond holders, and other parties for interest earned on loans or credit extended to the reporting entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The increase (decrease) during the reporting period in other current operating assets not separately disclosed in the statement of cash flows. No definition available.
|
| X | ||||||||||
- Definition The increase (decrease) during the reporting period in other current operating liabilities not separately disclosed in the statement of cash flows. No definition available.
|
| X | ||||||||||
- Definition The increase (decrease) during the reporting period in the amount of outstanding money paid in advance for goods or services that bring economic benefits for future periods. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Other cash or noncash adjustments to reconcile net income to cash provided by (used in) operating activities that are not separately disclosed in the statement of cash flows (for example, cash received or cash paid during the current period for miscellaneous operating activities, net change during the reporting period in other assets or other liabilities). No definition available.
|
| X | ||||||||||
- Definition The cash outflow to reacquire common stock during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The distributions of earnings to an entity that is affiliated with the reporting entity by means of direct or indirect ownership. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of cash outflow through purchase of long-term held-to-maturity securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The cash outflow to purchase of mineral interests in oil and gas properties for use in the normal oil and gas operations and not intended for resale. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The cash outflow for acquisition of or capital improvements on other tangible or intangible assets not otherwise defined in the taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The cash inflow from the additional capital contribution to the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of cash inflow from the sale or maturity of long-term held-to-maturity securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The cash inflow from the sale of property, plant and equipment (capital expenditures), software, and other intangible assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
Organization And Nature Of Operations |
6 Months Ended |
|---|---|
Jun. 30, 2016 | |
| Organization, Consolidation and Presentation of Financial Statements [Abstract] | |
| Organization And Nature Of Operations | Organization and Nature of Operations Pioneer Natural Resources Company ("Pioneer" or the "Company") is a Delaware corporation whose common stock is listed and traded on the New York Stock Exchange. The Company is a large independent oil and gas exploration and production company operating in the United States, with operations primarily in the Permian Basin in West Texas, the Eagle Ford Shale play in South Texas, the Raton field in southeast Colorado and the West Panhandle field in the Texas Panhandle. |
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The entire disclosure for organization, consolidation and basis of presentation of financial statements disclosure. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
Basis Of Presentation |
6 Months Ended |
|---|---|
Jun. 30, 2016 | |
| Organization, Consolidation and Presentation of Financial Statements [Abstract] | |
| Basis Of Presentation | Basis of Presentation Presentation. In the opinion of management, the consolidated financial statements of the Company as of June 30, 2016 and for the three and six months ended June 30, 2016 and 2015 include all adjustments and accruals, consisting only of normal, recurring accrual adjustments, which are necessary for a fair presentation of the results for the interim periods. These interim results are not necessarily indicative of results for a full year. Certain information and footnote disclosures normally included in financial statements prepared in accordance with generally accepted accounting principles in the United States ("GAAP") have been condensed in or omitted from this report pursuant to the rules and regulations of the United States Securities and Exchange Commission (the "SEC"). These consolidated financial statements should be read together with the consolidated financial statements and notes thereto included in the Company's Annual Report on Form 10-K for the year ended December 31, 2015. Certain reclassifications have been made to the 2015 financial statement and footnote amounts in order to conform to the 2016 presentation. Restructuring. In February 2016, the Company announced plans to restructure its pressure pumping operations in South Texas, including relocating its two Eagle Ford Shale pressure pumping fleets to the Spraberry/Wolfcamp area. In connection therewith, the Company offered severance to certain employees and relocated a number of other employees from its South Texas locations to its operations in the Permian Basin. This initiative was substantially complete as of June 30, 2016. In connection therewith, during the three and six months ended June 30, 2016, the Company recognized $1 million and $4 million, respectively, of restructuring charges in other expense in the accompanying consolidated statements of operations. The restructuring charges for the six months ended June 30, 2016 included approximately $3 million in cash employee severance costs and $1 million in employee relocation and other costs. In May 2015, the Company announced plans to restructure its operations in Colorado, including closing its office in Denver, Colorado and eliminating its Trinidad-based pressure pumping operations. The restructuring plan was substantially complete as of December 31, 2015. In connection therewith, during the three and six months ended June 30, 2015, the Company recognized $15 million of restructuring charges in other expense in the accompanying consolidated statements of operations. As of June 30, 2016, the Company had $3 million of restructuring liabilities recorded in other current and noncurrent liabilities in the accompanying consolidated balance sheet, primarily related to future lease obligations associated with its Denver, Colorado office. Issuance of common stock. In the second quarter of 2016, the Company issued 6.0 million shares of common stock and received cash proceeds of $937 million, net of associated underwriting and offering expenses. In the first quarter of 2016, the Company issued 13.8 million shares of common stock and received cash proceeds of $1.6 billion, net of associated underwriting and offering expenses. New accounting pronouncements. In June 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2016-13, "Financial Instruments - Credit Losses." ASU 2016-13 changes the impairment model for most financial assets and certain other instruments, including trade and other receivables, held-to-maturity debt securities and loans, and requires entities to use a new forward-looking expected loss model that will result in the earlier recognition of allowance for losses. This update is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. Early adoption is permitted for a fiscal year beginning after December 15, 2018, including interim periods within that fiscal year. Entities will apply the standard's provisions as a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the guidance is adopted. The Company is evaluating the new guidance and does not believe this standard will have a material impact on its consolidated financial statements. In March 2016, the FASB issued ASU 2016-09, "Improvements to Employee Share-Based Payment Accounting." ASU 2016-09 simplifies several aspects of the accounting for share-based payment transactions, including accounting for income taxes, forfeitures and statutory tax withholding requirements, as well as certain classification changes in the statement of cash flows. This update is effective for fiscal years beginning after December 15, 2016, including interim periods within those fiscal years. Early adoption is permitted. The Company is evaluating the new guidance and has not determined the impact this standard may have on its consolidated financial statements. In February 2016, FASB issued ASU 2016-02, "Leases." ASU 2016-02 requires the recognition of lease assets and lease liabilities by lessees for those leases currently classified as operating leases and makes certain changes to the way lease expenses are accounted for. This update is effective for fiscal years beginning after December 15, 2018 and for interim periods beginning the following year. This update should be applied using a modified retrospective approach, and early adoption is permitted. The Company is evaluating the new guidance and has not determined the impact this standard may have on its consolidated financial statements. In January 2016, the FASB issued ASU 2016-01, "Recognition and Measurement of Financial Assets and Financial Liabilities." ASU 2016-01 changes certain guidance related to the recognition, measurement, presentation and disclosure of financial instruments. This update is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. Early adoption is not permitted for the majority of the update, but is permitted for two of its provisions. The Company is evaluating the new guidance and has not determined the impact this standard may have on its consolidated financial statements. In May 2014, the FASB issued ASU 2014-09, "Revenue from Contracts with Customers (Topic 606)," which supersedes the revenue recognition requirements in Accounting Standards Codification ("ASC") Topic 605, "Revenue Recognition," and most industry-specific guidance. ASU 2014-09 is based on the principle that revenue is recognized to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. ASU 2014-09 also requires additional disclosure about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts. In August 2015, the FASB issued ASU 2015-14, which defers the effective date of ASU 2014-09 for one year to fiscal years beginning after December 15, 2017. Early adoption is permitted for fiscal years beginning after December 15, 2016. In May 2016, the FASB issued ASU 2016-11, which rescinds guidance from the SEC on accounting for gas balancing arrangements and will eliminate the use of the entitlements method. Entities have the option of using either a full retrospective or modified approach to adopt the new standards. The Company is evaluating the new guidance and has not determined the impact this standard may have on its consolidated financial statements or decided upon its method of adoption. |
| X | ||||||||||
- Definition The entire disclosure for the basis of presentation and significant accounting policies concepts. Basis of presentation describes the underlying basis used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS). Accounting policies describe all significant accounting policies of the reporting entity. No definition available.
|
| X | ||||||||||
- References No definition available.
|
Acquisitions and Divestitures |
6 Months Ended |
|---|---|
Jun. 30, 2016 | |
| Acquisitions and Divestitures [Abstract] | |
| Acquisition and Divestitures | Divestitures EFS Midstream. In July 2015, the Company closed on the sale of its 50.1 percent equity interest in EFS Midstream LLC ("EFS Midstream") to an unaffiliated third party, with the Company receiving total consideration of $1.0 billion, of which $530 million was received in cash at closing and the remaining $501 million was in the form of a note, which was payable to the Company one year from closing. The note receivable was paid in full in July 2016. See Note O for additional information on the payment of the note receivable. |
| X | ||||||||||
- Definition Acquisitions and Divestitures [Abstract] No definition available.
|
| X | ||||||||||
- Definition The entire disclosure for business combinations, including leverage buyout transactions (as applicable), and divestitures. This may include a description of a business combination or divestiture (or series of individually immaterial business combinations or divestitures) completed during the period, including background, timing, and assets and liabilities recognized and reclassified or sold. This element does not include fixed asset sales and plant closings. No definition available.
|
Fair Value Measurements |
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| Fair Value Disclosures [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fair Value Measurements | Fair Value Measurements Fair value is defined as the price that would be received to sell an asset or the price paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair value measurements are based upon inputs that market participants use in pricing an asset or liability, which are characterized according to a hierarchy that prioritizes those inputs based on the degree to which they are observable. Observable inputs represent market data obtained from independent sources, whereas unobservable inputs reflect a company's own market assumptions, which are used if observable inputs are not reasonably available without undue cost and effort. The three input levels of the fair value hierarchy are as follows:
Assets and liabilities measured at fair value on a recurring basis. The fair value input hierarchy level to which an asset or liability measurement in its entirety falls is determined based on the lowest level input that is significant to the measurement in its entirety. The following table presents the Company's assets and liabilities that are measured at fair value on a recurring basis as of June 30, 2016 for each of the fair value hierarchy levels:
Commodity derivatives. The Company's commodity derivatives represent oil, natural gas liquids ("NGL") and gas swap contracts, collar contracts and collar contracts with short puts. The asset and liability measurements for the Company's commodity derivative contracts represent Level 2 inputs in the hierarchy. The Company utilizes discounted cash flow and option-pricing models for valuing its commodity derivatives. The asset and liability values attributable to the Company's commodity derivatives were determined based on inputs that include (i) the contracted notional volumes, (ii) independent active market price quotes, (iii) the applicable estimated credit-adjusted risk-free rate yield curve and (iv) the implied rate of volatility inherent in the collar contracts and collar contracts with short puts, which is based on active and independent market-quoted volatility factors. Deferred compensation plan assets. The Company's deferred compensation plan assets represent investments in equity and mutual fund securities that are actively traded on major exchanges. These investments are measured based on observable prices on major exchanges. As of June 30, 2016, the significant inputs to these asset values represented Level 1 independent active exchange market price inputs. Interest rate derivatives. The Company's interest rate derivative liabilities represent interest rate swap contracts. The Company utilizes discounted cash flow models for valuing its interest rate derivatives. The derivative values attributable to the Company's interest rate derivative contracts are based on (i) the contracted notional amounts, (ii) forward active market-quoted London Interbank Offered Rate ("LIBOR") and (iii) the applicable credit-adjusted risk-free rate yield curve. The Company's interest rate derivative fair value measurements represent Level 2 inputs in the hierarchy. Assets and liabilities measured at fair value on a nonrecurring basis. Certain assets and liabilities are measured at fair value on a nonrecurring basis. These assets and liabilities are not measured at fair value on an ongoing basis, but are subject to fair value adjustments in certain circumstances. These assets and liabilities can include inventory, proved and unproved oil and gas properties and other long-lived assets that are written down to fair value when they are impaired or held for sale. The Company recognized noncash impairment charges of $5 million and $9 million for the the six months ended June 30, 2016 and 2015, respectively, attributable to inventory and other property and equipment. Proved oil and gas properties. As a result of the Company's proved property impairment assessments, the Company recognized pretax, noncash impairment charges to reduce the carrying values of (i) the West Panhandle field during the three months ended March 31, 2016 and (ii) the Eagle Ford Shale field, the West Panhandle field and the South Texas - Other field during the year ended December 31, 2015 to their estimated fair values. The Company calculated the fair values of the West Panhandle field, the Eagle Ford Shale field and the South Texas - Other field using a discounted future cash flow model. Significant Level 3 assumptions associated with the calculations included management's longer-term commodity price outlooks ("Management's Price Outlooks") and management's outlooks for (i) production costs, (ii) capital expenditures, (iii) production and (iv) estimated proved reserves and risk-adjusted probable reserves. Management's Price Outlooks are developed based on third-party longer-term commodity futures price outlooks as of each measurement date. The expected future net cash flows were discounted using an annual rate of 10 percent to determine estimated fair value. The following table presents the fair value and fair value adjustments (in millions) for the Company's 2016 and 2015 proved property impairments, as well as the average oil price per barrel ("Bbl") and gas price per British thermal unit ("MMBtu") utilized in respective Management's Price Outlooks:
It is reasonably possible that the estimate of undiscounted future net cash flows attributable to these or other properties may change in the future resulting in the need to impair their carrying values. The primary factors that may affect estimates of future cash flows are (i) future adjustments, both positive and negative, to proved and risk-adjusted probable and possible oil and gas reserves, (ii) results of future drilling activities, (iii) Management's Price Outlooks and (iv) increases or decreases in production and capital costs associated with these reserves. Unproved oil and gas properties. During March 2016, the Company recorded an impairment charge of $32 million to write-off the carrying value of its unproved royalty acreage in Alaska (reported in exploration and abandonments in the accompanying consolidated statements of operations) as a result of the operator curtailing operations in the area and Management's Price Outlooks. Financial instruments not carried at fair value. Carrying values and fair values of financial instruments that are not carried at fair value in the accompanying consolidated balance sheets as of June 30, 2016 and December 31, 2015 are as follows:
Commercial paper, corporate bonds and time deposits. Periodically, the Company invests in commercial paper and corporate bonds with investment grade rated entities. The Company also periodically enters into time deposits with financial institutions. The investments are carried at amortized cost, which approximates fair value, and classified as held-to-maturity as the Company has the intent and ability to hold them until they mature. The net carrying value of held-to-maturity investments is adjusted for amortization of premiums and accretion of discounts to maturity over the life of the investments. Income related to these investments is recorded in interest and other income in the Company's consolidated statement of operations. The investments represent Level 2 inputs in the hierarchy. Commercial paper, corporate bonds and time deposits are included in cash and cash equivalents, short-term investments or long-term investments in the accompanying consolidated balance sheets based on their maturity dates. The following table provides the components of the Company's cash and cash equivalents and investments as of June 30, 2016:
Debt obligations. Current and noncurrent long-term debt includes the Company's credit facility and the Company's senior notes. The fair value of the Company's debt obligations is determined utilizing inputs that are Level 2 measurements in the fair value hierarchy. The fair value of the Company's credit facility is calculated using a discounted cash flow model based on (i) forecasted contractual interest and fee payments, (ii) forward active market-quoted United States Treasury Bill rates and (iii) the applicable credit-adjustments. The Company's senior notes represent debt securities that are not actively traded on major exchanges. The fair values of the Company's senior notes are based on their periodic values as quoted on the major exchanges. The Company has other financial instruments consisting primarily of accounts receivables, prepaid expenses, notes receivable, payables and other current assets and liabilities that approximate fair value due to the nature of the instrument and their relatively short maturities. Non-financial assets and liabilities initially measured at fair value include assets acquired and liabilities assumed in a business combination, goodwill and asset retirement obligations. |
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- Definition The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Derivative Financial Instruments |
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| Derivative Instruments and Hedging Activities Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Derivative Financial Instruments | Derivative Financial Instruments The Company utilizes commodity swap contracts, collar contracts and collar contracts with short puts to (i) reduce the effect of price volatility on the commodities the Company produces and sells or consumes, (ii) support the Company's annual capital budgeting and expenditure plans and (iii) reduce commodity price risk associated with certain capital projects. The Company also, from time to time, utilizes interest rate contracts to reduce the effect of interest rate volatility on the Company's indebtedness. Periodically, the Company may pay a premium to enter into commodity contracts. Premiums paid, if any, have been nominal in relation to the value of the underlying asset in the contract. The Company recognizes the nominal premium payments as an increase to the value of derivative assets when paid. All derivatives are adjusted to fair value as of each balance sheet date. Oil production derivative activities. All material physical sales contracts governing the Company's oil production are tied directly to, or are highly correlated with, New York Mercantile Exchange ("NYMEX") West Texas Intermediate ("WTI") oil prices. The Company uses derivative contracts to manage oil price volatility and basis swap contracts to reduce basis risk between NYMEX prices and the actual index prices at which the oil is sold. The following table sets forth the volumes per day associated with the Company's outstanding oil derivative contracts as of June 30, 2016 and the weighted average oil prices for those contracts:
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NGL production derivative activities. All material physical sales contracts governing the Company's NGL production are tied directly or indirectly to either Mont Belvieu or Conway NGL component product prices. The Company uses derivative contracts to manage the NGL component price volatility. The following table sets forth the volumes per day associated with the Company's outstanding NGL derivative contracts as of June 30, 2016 and the weighted average NGL prices for those contracts:
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Gas production derivative activities. All material physical sales contracts governing the Company's gas production are tied directly or indirectly to HH gas prices or regional index prices where the gas is sold. The Company uses derivative contracts to manage gas price volatility and basis swap contracts to reduce basis risk between HH prices and the actual index prices at which the gas is sold. The following table sets forth the volumes per day associated with the Company's outstanding gas derivative contracts as of June 30, 2016 and the weighted average gas prices for those contracts:
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Marketing and basis derivative activities. Periodically, the Company enters into buy and sell marketing arrangements to fulfill firm pipeline transportation commitments. Associated with these marketing arrangements, the Company may enter into index swaps to mitigate price risk. As of June 30, 2016, the Company did not have any marketing derivatives outstanding. Interest rate derivative activities. As of June 30, 2016, the Company was a party to interest rate derivative contracts whereby the Company will receive the three-month LIBOR rate for the 10-year period from December 2017 to December 2027 in exchange for paying a weighted average fixed interest rate of 1.94 percent on a notional amount of $250 million on December 15, 2017. Tabular disclosure of derivative financial instruments. All of the Company's derivatives are accounted for as non-hedge derivatives and therefore all changes in the fair values of its derivative contracts are recognized as gains or losses in the earnings of the periods in which they occur. The Company classifies the fair value amounts of derivative assets and liabilities as net current or noncurrent derivative assets or net current or noncurrent derivative liabilities, whichever the case may be, by commodity and counterparty. The Company enters into derivatives under master netting arrangements, which, in an event of default, allows the Company to offset payables to and receivables from the defaulting counterparty. The aggregate fair value of the Company's derivative instruments reported in the accompanying consolidated balance sheets by type and counterparty, including the classification between current and noncurrent assets and liabilities, consists of the following:
The Company uses credit and other financial criteria to evaluate the credit standing of, and to select, counterparties to its derivative instruments. Although the Company does not obtain collateral or otherwise secure the fair value of its derivative instruments, associated credit risk is mitigated by the Company's credit risk policies and procedures. The following table details the location of gains and losses recognized on the Company's derivative contracts in the accompanying consolidated statements of operations:
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition The entire disclosure for derivative instruments and hedging activities including, but not limited to, risk management strategies, non-hedging derivative instruments, assets, liabilities, revenue and expenses, and methodologies and assumptions used in determining the amounts. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Exploratory Costs |
6 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Exploratory Cost Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Exploratory Costs | Exploratory Costs The Company capitalizes exploratory well and project costs until a determination is made that the well or project has either found proved reserves, is impaired or is sold. The Company's capitalized exploratory well and project costs are presented in proved properties in the accompanying consolidated balance sheets. If the exploratory well or project is determined to be impaired, the impaired costs are charged to exploration and abandonments expense. The following table reflects the Company's capitalized exploratory well and project activity during the three and six months ended June 30, 2016:
The following table provides an aging, as of June 30, 2016 and December 31, 2015 of capitalized exploratory costs and the number of projects for which exploratory well costs have been capitalized for a period greater than one year, based on the date drilling was completed:
The well that was suspended for a period greater than one year as of June 30, 2016 is in the Eagle Ford Shale area. The Company expects to complete this well in 2017. |
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| X | ||||||||||
- Definition -- None. No documentation exists for this element. -- No definition available.
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| X | ||||||||||
- Definition The entire disclosure for oil and gas producing industries. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Long-Term Debt |
6 Months Ended |
|---|---|
Jun. 30, 2016 | |
| Debt Disclosure [Abstract] | |
| Long-Term Debt | Long-term Debt Credit facility. The Company's long-term debt consists of senior notes, a revolving corporate credit facility (the "Credit Facility") and the effects of issuance costs, issuance discounts and net deferred fair value hedge losses. The Credit Facility is maintained with a syndicate of financial institutions and has aggregate loan commitments of $1.5 billion that expire in August 2020. As of June 30, 2016, the Company had no outstanding borrowings under the Credit Facility and was in compliance with its debt covenants. Senior notes. The Company's 5.875% senior notes (the "5.875% Senior Notes"), with an outstanding debt principal balance of $455 million, matured and were repaid in July 2016. The Company's 6.65% senior notes (the "6.65% Senior Notes"), with an outstanding debt principal balance of $485 million, will mature in March 2017. The 5.875% Senior Notes and 6.65% Senior Notes are classified as current in the accompanying consolidated balance sheets as of June 30, 2016. See Note O for additional information on the payment of the 5.875% Senior Notes. |
| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition The entire disclosure for long-term debt. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Incentive Plans |
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| Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Incentive Plans | Incentive Plans Stock-based compensation For the three and six months ended June 30, 2016, the Company recorded $29 million and $53 million, respectively, of stock-based compensation expense for all plans, as compared to $32 million and $61 million for the same respective periods in 2015. As of June 30, 2016, there was $154 million of unrecognized compensation expense related to unvested share-based compensation plan awards, including $35 million attributable to stock-based awards that are expected to be settled on their vesting date in cash, rather than in equity shares ("Liability Awards"). The unrecognized compensation expense will be recognized over the remaining vesting periods of the awards, which is a period of less than three years on a weighted average basis. As of June 30, 2016 and December 31, 2015, accounts payable – due to affiliates included $9 million and $16 million, respectively, of liabilities attributable to Liability Awards. The following table summarizes the activity that occurred during the six months ended June 30, 2016 for each type of share-based incentive award issued by Pioneer:
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| X | ||||||||||
- Definition The entire disclosure for an entity's employee compensation and benefit plans, including, but not limited to, postemployment and postretirement benefit plans, defined benefit pension plans, defined contribution plans, non-qualified and supplemental benefit plans, deferred compensation, share-based compensation, life insurance, severance, health care, unemployment and other benefit plans. No definition available.
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| X | ||||||||||
- References No definition available.
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Asset Retirement Obligations |
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| Asset Retirement Obligation [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Asset Retirement Obligations | Asset Retirement Obligations The Company's asset retirement obligations primarily relate to the future plugging and abandonment of wells and related facilities. The following table summarizes the Company's asset retirement obligation activity during the three and six months ended June 30, 2016 and 2015:
The Company records the current and noncurrent portions of asset retirement obligations in other current liabilities and other liabilities, respectively, in the accompanying consolidated balance sheets. As of June 30, 2016, the current portion of the Company's asset retirement obligations was $42 million, as compared to $40 million at December 31, 2015. |
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition The entire disclosure for an asset retirement obligation and the associated long-lived asset. An asset retirement obligation is a legal obligation associated with the disposal or retirement from service of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Commitments And Contingencies |
6 Months Ended |
|---|---|
Jun. 30, 2016 | |
| Commitments and Contingencies Disclosure [Abstract] | |
| Commitments And Contingencies | Commitments and Contingencies The Company is a party to proceedings and claims incidental to its business. While many of these matters involve inherent uncertainty, the Company believes that the amount of the liability, if any, ultimately incurred with respect to such proceedings and claims will not have a material adverse effect on the Company's financial position as a whole or on its liquidity, capital resources or future annual results of operations. The Company records reserves for contingencies when information available indicates that a loss is probable and the amount of the loss can be reasonably estimated. Obligations following divestitures. In connection with its divestiture transactions, the Company may retain certain liabilities and provide the purchaser certain indemnifications, subject to defined limitations, which may apply to identified pre-closing matters, including matters of litigation, environmental contingencies, royalty obligations and income taxes. The Company does not believe these obligations are probable of having a material impact on its liquidity, financial position or future results of operations. |
| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition The entire disclosure for commitments and contingencies. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Interest And Other Income |
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| Interest and Other Income [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Interest And Other Income | Interest and Other Income The following table provides the components of the Company's interest and other income for the three and six months ended June 30, 2016 and 2015:
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition The entire disclosure for other income or other expense items (both operating and nonoperating). Sources of nonoperating income or nonoperating expense that may be disclosed, include amounts earned from dividends, interest on securities, profits (losses) on securities, net and miscellaneous other income or income deductions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Other Expense |
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| Other Expense [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Other Expense | Other Expense The following table provides the components of the Company's other expense for the three and six months ended June 30, 2016 and 2015:
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| X | ||||||||||
- Definition Other Expense [Abstract] No definition available.
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| X | ||||||||||
- Definition Other Operating Expenses [Text Block] No definition available.
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Income Taxes |
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| Income Tax Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Income Taxes | Income Taxes The Company's income tax benefit attributable to income from continuing operations consisted of the following for the three and six months ended June 30, 2016 and 2015:
For both the three and six months ended June 30, 2016, the Company's effective tax rates, excluding income attributable to noncontrolling interests, were 35 percent, as compared to effective rates of 36 percent and 35 percent for the same respective periods in 2015. The Company has no unrecognized tax benefits as of June 30, 2016. The Company files income tax returns in the U.S. federal and various state and foreign jurisdictions. The Internal Revenue Service has closed examinations of the 2013 and prior tax years and, with few exceptions, the Company believes that it is no longer subject to examinations by state and foreign tax authorities for years before 2010. As of June 30, 2016, no adjustments had been proposed in any jurisdiction that would have a significant effect on the Company's liquidity, future results of operations or financial position. |
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Net Income Per Share |
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| Earnings Per Share [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net Income Per Share | Net Loss Per Share The following table reconciles the Company's loss from continuing operations to basic and diluted net loss attributable to common stockholders for the three and six months ended June 30, 2016 and 2015:
Basic and diluted weighted average common shares outstanding were 164 million and 163 million, respectively, for the three and six months ended June 30, 2016 and 149 million for the three and six months ended June 30, 2015. |
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition The entire disclosure for earnings per share. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Subsequent Events |
6 Months Ended |
|---|---|
Jun. 30, 2016 | |
| Subsequent Event [Line Items] | |
| Subsequent Events | NOTE O. Subsequent Events Senior notes. In July 2016, the Company's 5.875% Senior Notes matured. The Company funded the payment of the $455 million principal balance with cash on hand. See Note G for additional information regarding the Company's senior notes. EFS Midstream. In July 2016, the Company received a cash payment of $501 million from an unaffiliated third party to settle the outstanding note receivable that was reflected in the accompanying consolidated balance sheet as of June 30, 2016. The note receivable represented a portion of the consideration received from the July 2015 sale of EFS Midstream. See Note C for additional information regarding the Company's sale of EFS Midstream. |
| X | ||||||||||
- 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. No definition available.
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| X | ||||||||||
- Definition The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business. No definition available.
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Basis Of Presentation (Policies) |
6 Months Ended |
|---|---|
Jun. 30, 2016 | |
| Organization, Consolidation and Presentation of Financial Statements [Abstract] | |
| Presentation | Presentation. In the opinion of management, the consolidated financial statements of the Company as of June 30, 2016 and for the three and six months ended June 30, 2016 and 2015 include all adjustments and accruals, consisting only of normal, recurring accrual adjustments, which are necessary for a fair presentation of the results for the interim periods. These interim results are not necessarily indicative of results for a full year. Certain information and footnote disclosures normally included in financial statements prepared in accordance with generally accepted accounting principles in the United States ("GAAP") have been condensed in or omitted from this report pursuant to the rules and regulations of the United States Securities and Exchange Commission (the "SEC"). These consolidated financial statements should be read together with the consolidated financial statements and notes thereto included in the Company's Annual Report on Form 10-K for the year ended December 31, 2015. Certain reclassifications have been made to the 2015 financial statement and footnote amounts in order to conform to the 2016 presentation. |
| New Accounting Pronouncements, Policy [Policy Text Block] | New accounting pronouncements. In June 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2016-13, "Financial Instruments - Credit Losses." ASU 2016-13 changes the impairment model for most financial assets and certain other instruments, including trade and other receivables, held-to-maturity debt securities and loans, and requires entities to use a new forward-looking expected loss model that will result in the earlier recognition of allowance for losses. This update is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. Early adoption is permitted for a fiscal year beginning after December 15, 2018, including interim periods within that fiscal year. Entities will apply the standard's provisions as a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the guidance is adopted. The Company is evaluating the new guidance and does not believe this standard will have a material impact on its consolidated financial statements. In March 2016, the FASB issued ASU 2016-09, "Improvements to Employee Share-Based Payment Accounting." ASU 2016-09 simplifies several aspects of the accounting for share-based payment transactions, including accounting for income taxes, forfeitures and statutory tax withholding requirements, as well as certain classification changes in the statement of cash flows. This update is effective for fiscal years beginning after December 15, 2016, including interim periods within those fiscal years. Early adoption is permitted. The Company is evaluating the new guidance and has not determined the impact this standard may have on its consolidated financial statements. In February 2016, FASB issued ASU 2016-02, "Leases." ASU 2016-02 requires the recognition of lease assets and lease liabilities by lessees for those leases currently classified as operating leases and makes certain changes to the way lease expenses are accounted for. This update is effective for fiscal years beginning after December 15, 2018 and for interim periods beginning the following year. This update should be applied using a modified retrospective approach, and early adoption is permitted. The Company is evaluating the new guidance and has not determined the impact this standard may have on its consolidated financial statements. In January 2016, the FASB issued ASU 2016-01, "Recognition and Measurement of Financial Assets and Financial Liabilities." ASU 2016-01 changes certain guidance related to the recognition, measurement, presentation and disclosure of financial instruments. This update is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. Early adoption is not permitted for the majority of the update, but is permitted for two of its provisions. The Company is evaluating the new guidance and has not determined the impact this standard may have on its consolidated financial statements. In May 2014, the FASB issued ASU 2014-09, "Revenue from Contracts with Customers (Topic 606)," which supersedes the revenue recognition requirements in Accounting Standards Codification ("ASC") Topic 605, "Revenue Recognition," and most industry-specific guidance. ASU 2014-09 is based on the principle that revenue is recognized to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. ASU 2014-09 also requires additional disclosure about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts. In August 2015, the FASB issued ASU 2015-14, which defers the effective date of ASU 2014-09 for one year to fiscal years beginning after December 15, 2017. Early adoption is permitted for fiscal years beginning after December 15, 2016. In May 2016, the FASB issued ASU 2016-11, which rescinds guidance from the SEC on accounting for gas balancing arrangements and will eliminate the use of the entitlements method. Entities have the option of using either a full retrospective or modified approach to adopt the new standards. The Company is evaluating the new guidance and has not determined the impact this standard may have on its consolidated financial statements or decided upon its method of adoption. |
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- Definition Disclosure of accounting policy regarding (1) the principles it follows in consolidating or combining the separate financial statements, including the principles followed in determining the inclusion or exclusion of subsidiaries or other entities in the consolidated or combined financial statements and (2) its treatment of interests (for example, common stock, a partnership interest or other means of exerting influence) in other entities, for example consolidation or use of the equity or cost methods of accounting. The accounting policy may also address the accounting treatment for intercompany accounts and transactions, noncontrolling interest, and the income statement treatment in consolidation for issuances of stock by a subsidiary. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Disclosure of accounting policy pertaining to new accounting pronouncements that may impact the entity's financial reporting. Includes, but is not limited to, quantification of the expected or actual impact. No definition available.
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- References No definition available.
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Fair Value Measurements (Tables) |
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| Fair Value Disclosures [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of assets and liabilities measured at fair value on a recurring basis | The following table presents the Company's assets and liabilities that are measured at fair value on a recurring basis as of June 30, 2016 for each of the fair value hierarchy levels:
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| Fair Value Measurements, Nonrecurring [Table Text Block] | The following table presents the fair value and fair value adjustments (in millions) for the Company's 2016 and 2015 proved property impairments, as well as the average oil price per barrel ("Bbl") and gas price per British thermal unit ("MMBtu") utilized in respective Management's Price Outlooks:
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| Schedule of carrying values and financial instruments not carried at fair value | Carrying values and fair values of financial instruments that are not carried at fair value in the accompanying consolidated balance sheets as of June 30, 2016 and December 31, 2015 are as follows:
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| Cash, Cash Equivalents and Investments [Table Text Block] | The following table provides the components of the Company's cash and cash equivalents and investments as of June 30, 2016:
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- Definition Tabular disclosure of assets and liabilities by class, including financial instruments measured at fair value that are classified in shareholders' equity, if any, that are measured at fair value on a nonrecurring basis in periods after initial recognition (for example, impaired assets). Disclosures may include, but are not limited to: (a) the fair value measurements recorded and the reasons for the measurements and (b) the level within the fair value hierarchy in which the fair value measurements are categorized in their entirety (levels 1, 2, 3). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Tabular disclosure of the components of cash, cash equivalents, and investments. No definition available.
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Derivative Financial Instruments (Tables) |
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| Derivative Instruments and Hedging Activities Disclosure [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of oil derivative contracts volume and weighted average price | The following table sets forth the volumes per day associated with the Company's outstanding oil derivative contracts as of June 30, 2016 and the weighted average oil prices for those contracts:
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| Schedule of NGL derivative volumes and weighted average prices | The following table sets forth the volumes per day associated with the Company's outstanding NGL derivative contracts as of June 30, 2016 and the weighted average NGL prices for those contracts:
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| Schedule of gas derivative volume and weighted average prices | The following table sets forth the volumes per day associated with the Company's outstanding gas derivative contracts as of June 30, 2016 and the weighted average gas prices for those contracts:
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| Offsetting Asset and Liability | The aggregate fair value of the Company's derivative instruments reported in the accompanying consolidated balance sheets by type and counterparty, including the classification between current and noncurrent assets and liabilities, consists of the following:
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| Schedule of derivative gains and losses recognized on statement of operations | The following table details the location of gains and losses recognized on the Company's derivative contracts in the accompanying consolidated statements of operations:
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- Definition Offsetting Asset and Liability [Table Text Block] No definition available.
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- Definition Schedule Of Gas Volume And Weighted Average Prices [Table Text Block] No definition available.
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- Definition Schedule of NGL Derivative Volumes and Weighted Average Prices [Table Text Block] No definition available.
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- Definition Schedule of Derivative Gains and Losses Recognized on Statement of Operations [Text Block] No definition available.
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- Definition Schedule of Oil Derivative Contracts Volume and Weighted Average Price [Text Block] No definition available.
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Exploratory Costs (Tables) |
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| Exploratory Cost Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Capitalized exploratory well and project activity | The following table reflects the Company's capitalized exploratory well and project activity during the three and six months ended June 30, 2016:
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| Capitalized Exploratory Costs And The Number Of Projects For Which Exploratory Costs Have Been Capitalized | The following table provides an aging, as of June 30, 2016 and December 31, 2015 of capitalized exploratory costs and the number of projects for which exploratory well costs have been capitalized for a period greater than one year, based on the date drilling was completed:
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- Definition Capitalized Exploratory Well and Project Activity [Table Text Block] No definition available.
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- Definition -- None. No documentation exists for this element. -- No definition available.
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- Definition Tabular disclosure of exploratory well costs that continue to be capitalized for more than one year after the completion of drilling. Information may include a description of the projects and the activities that the enterprise has undertaken to date in order to evaluate the reserves and the projects, and the remaining activities required to classify the associated reserves as proved. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Incentive Plans (Tables) |
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| Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Share Based Incentive Award Activity | The following table summarizes the activity that occurred during the six months ended June 30, 2016 for each type of share-based incentive award issued by Pioneer:
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- Definition Schedue of Share Based Incentive Award Activity [Table Text Block] No definition available.
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Asset Retirement Obligations (Tables) |
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| Asset Retirement Obligation [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of asset retirement obligations | The following table summarizes the Company's asset retirement obligation activity during the three and six months ended June 30, 2016 and 2015:
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- Definition Tabular disclosure of the carrying amount of a liability for asset retirement obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Interest And Other Income (Tables) |
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| Interest and Other Income [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Components of interest and other income | The following table provides the components of the Company's interest and other income for the three and six months ended June 30, 2016 and 2015:
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- Definition Tabular disclosure of interest income and other income elements which are not separately disclosed on the income statement. No definition available.
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Other Expense (Tables) |
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| Other Expense [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of components of other expense | The following table provides the components of the Company's other expense for the three and six months ended June 30, 2016 and 2015:
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- Definition Other Expense [Abstract] No definition available.
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| X | ||||||||||
- Definition Schedule of Components of Other Expense Text Block No definition available.
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Income Taxes (Tables) |
6 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Income Tax Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Income tax (provisions) benefits attributable to income from continuing operations | The Company's income tax benefit attributable to income from continuing operations consisted of the following for the three and six months ended June 30, 2016 and 2015:
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Net Income Per Share (Tables) |
6 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Earnings Per Share [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Reconciliation of earnings attributable to common stockholders, basic and diluted | The following table reconciles the Company's loss from continuing operations to basic and diluted net loss attributable to common stockholders for the three and six months ended June 30, 2016 and 2015:
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Basis Of Presentation Basis of Presentation (Narrative) (Details) - USD ($) shares in Millions, $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2016 |
Mar. 31, 2016 |
Jun. 30, 2016 |
Jun. 30, 2015 |
|
| Summary Of Significant Accounting Policies [Line Items] | ||||
| Stock Issued During Period, Shares, New Issues | 6.0 | 13.8 | ||
| Proceeds from issuance of common stock, net of issuance costs | $ 937 | $ 1,600 | $ 2,534 | $ 0 |
| X | ||||||||||
- Definition Summary Of Significant Accounting Policies [Line Items] No definition available.
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| X | ||||||||||
- Definition The cash inflow from the additional capital contribution to the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Number of new stock issued during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Basis Of Presentation Basis of Presentation (Restructuring) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2016 |
Jun. 30, 2015 |
Jun. 30, 2016 |
Jun. 30, 2015 |
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| Restructuring Cost and Reserve [Line Items] | ||||
| Restructuring Charges | $ 1 | $ 15 | $ 4 | $ 15 |
| Restructuring Reserve | $ 3 | 3 | ||
| Employee Severance [Member] | ||||
| Restructuring Cost and Reserve [Line Items] | ||||
| Restructuring Charges | 3 | |||
| Employee Relocation [Member] | ||||
| Restructuring Cost and Reserve [Line Items] | ||||
| Restructuring Charges | $ 1 | |||
| X | ||||||||||
- Definition Discloses the amount charged against the accrued restructuring reserves, or earnings if not previously accrued, during the period for the specified type of restructuring cost. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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| X | ||||||||||
- Definition Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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Acquisitions and Divestitures (Narrative) (Details) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2015 |
Sep. 30, 2015 |
|
| Acquisitions and Divestitures [Line Items] | ||
| Equity Method Investment, Ownership Percentage | 50.10% | |
| Equity Method Investment, Net Sales Proceeds | $ 1,000 | |
| Proceeds Received Current Year [Member] | ||
| Acquisitions and Divestitures [Line Items] | ||
| Equity Method Investment, Net Sales Proceeds | 530 | |
| Proceeds To Be Received In Future Year [Member] [Member] | ||
| Acquisitions and Divestitures [Line Items] | ||
| Equity Method Investment, Net Sales Proceeds | $ 501 |
| X | ||||||||||
- Definition Gain Loss on Sale of Assets [Line Items] No definition available.
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| X | ||||||||||
- Definition This item represents the amount of net sales proceeds received on disposal of an equity method investment. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Definition Recurring Measurements, (Fair Value, Net). No definition available.
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| X | ||||||||||
- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Carrying amount as of the balance sheet date of assets held under deferred compensation agreements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Fair value, after offset of derivative liability, of 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, before offset against an obligation to return collateral under a master netting arrangement. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Fair value, after offset of derivative asset, of financial liability or 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, elected not to be and before offset against a right to receive collateral under a master netting arrangement. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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| X | ||||||||||
- Definition Fair value of financial and nonfinancial obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Definition Fair Value of Asset Group No definition available.
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| X | ||||||||||
- Definition Management gas price outlook No definition available.
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| X | ||||||||||
- Definition Management oil price outlook No definition available.
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| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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| X | ||||||||||
- Definition The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The expense recorded to reduce the value of oil and gas assets consisting of proved properties and unproved properties as the estimate of future successful production from these properties is reduced. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The charge against earnings resulting from the aggregate write down of tangible assets from their carrying value to their fair value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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Fair Value Measurements (Schedule Of Carrying Values And Financial Instruments Not Carried At Fair Value) (Details) - USD ($) $ in Millions |
Jun. 30, 2016 |
Dec. 31, 2015 |
|---|---|---|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Long-term Debt, Excluding Current Maturities | $ 2,725 | $ 3,207 |
| Reported Value Measurement [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Investments | 1,521 | 275 |
| Debt, Current | 939 | 448 |
| Long-term Debt, Excluding Current Maturities | 2,725 | 3,207 |
| Estimate of Fair Value Measurement [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Investments | 1,521 | 275 |
| Debt, Current | 959 | 462 |
| Long-term Debt, Excluding Current Maturities | $ 2,999 | $ 3,206 |
| X | ||||||||||
- Definition Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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| X | ||||||||||
- Definition Sum of the carrying amounts as of the balance sheet date of all investments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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Fair Value Measurements Fair Value Measurements (Schedule of Cash and Cash Equivalents and Investments) (Details) - USD ($) $ in Millions |
Jun. 30, 2016 |
Dec. 31, 2015 |
Jun. 30, 2015 |
Dec. 31, 2014 |
|---|---|---|---|---|
| Schedule of Held-to-maturity Securities [Line Items] | ||||
| Cash and cash equivalents, at Carrying Value | $ 1,825 | $ 1,391 | $ 219 | $ 1,025 |
| Short-term Investments | 1,473 | 0 | ||
| Long-term Investments | 23 | $ 0 | ||
| Cash, Cash Equivalents, and Short-term Investments | 3,321 | |||
| Cash and Cash Equivalents [Member] | ||||
| Schedule of Held-to-maturity Securities [Line Items] | ||||
| Cash and cash equivalents, at Carrying Value | 1,800 | |||
| Short-term Investments | 0 | |||
| Long-term Investments | 0 | |||
| Cash, Cash Equivalents, and Short-term Investments | 1,800 | |||
| Commercial Paper [Member] | ||||
| Schedule of Held-to-maturity Securities [Line Items] | ||||
| Cash and cash equivalents, at Carrying Value | 25 | |||
| Short-term Investments | 867 | |||
| Long-term Investments | 0 | |||
| Cash, Cash Equivalents, and Short-term Investments | 892 | |||
| Corporate Bond Securities [Member] | ||||
| Schedule of Held-to-maturity Securities [Line Items] | ||||
| Cash and cash equivalents, at Carrying Value | 0 | |||
| Short-term Investments | 225 | |||
| Long-term Investments | 23 | |||
| Cash, Cash Equivalents, and Short-term Investments | 248 | |||
| Bank Time Deposits [Member] | ||||
| Schedule of Held-to-maturity Securities [Line Items] | ||||
| Cash and cash equivalents, at Carrying Value | 0 | |||
| Short-term Investments | 381 | |||
| Long-term Investments | 0 | |||
| Cash, Cash Equivalents, and Short-term Investments | $ 381 |
| X | ||||||||||
- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Cash includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the customer may deposit additional funds at any time and effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid Investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Short-term investments, exclusive of cash equivalents, generally consist of marketable securities intended to be sold within one year (or the normal operating cycle if longer) and may include trading securities, available-for-sale securities, or held-to-maturity securities (if maturing within one year), as applicable. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The total amount of investments that are intended to be held for an extended period of time (longer than one operating cycle). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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| X | ||||||||||
- Definition Investments which are intended to be sold in the short term (usually less than one year or the normal operating cycle, whichever is longer) including trading securities, available-for-sale securities, held-to-maturity securities, and other short-term investments not otherwise listed in the existing taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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Derivative Financial Instruments (Narrative) (Details) $ in Millions |
Jun. 30, 2016
USD ($)
Rate
|
|---|---|
| Trading Activity, Gains and Losses, Net [Line Items] | |
| Derivative, Fixed Interest Rate | Rate | 1.94% |
| Notional amount of debt | $ | $ 250 |
| X | ||||||||||
- Definition Swap Contract Notional Amount Fixed Rate of Interest and Variable LIBOR No definition available.
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| X | ||||||||||
- Definition Fixed interest rate related to the interest rate derivative. No definition available.
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| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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Derivative Financial Instruments (Schedule Of Oil Derivative Contracts Volume And Weighted Average Prices) (Details) $ in Millions |
1 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
|
Jul. 26, 2016
USD ($)
bbl / d
$ / bbl
|
Jun. 30, 2016
USD ($)
bbl / d
$ / bbl
|
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| Oil contracts [Member] | Collar Contracts With Short Puts for Year 2 - Converted [Member] | |||||
| Derivative [Line Items] | |||||
| Premium Paid on Derivative Contract | $ | $ 12 | ||||
| Derivative, Nonmonetary Notional Amount | bbl / d | [1] | 15,000 | |||
| Oil contracts [Member] | Collar Contracts With Short Puts for Year 2 [Member] | |||||
| Derivative [Line Items] | |||||
| Derivative, Nonmonetary Notional Amount | bbl / d | [1] | 75,000 | |||
| Oil contracts [Member] | Collar Contracts for Year 2 [Member] | |||||
| Derivative [Line Items] | |||||
| Derivative, Nonmonetary Notional Amount | bbl / d | 6,000 | ||||
| Oil contracts [Member] | Collar Contracts With Short Puts For Third Quarter of Year One [Member] | |||||
| Derivative [Line Items] | |||||
| Derivative, Nonmonetary Notional Amount | bbl / d | 112,000 | ||||
| Oil contracts [Member] | Collar Contracts With Short Puts For Fourth Quarter of Year One [Member] | |||||
| Derivative [Line Items] | |||||
| Derivative, Nonmonetary Notional Amount | bbl / d | 112,000 | ||||
| Oil contracts, price per bbl [Member] | Collar Contracts With Short Puts for Year 2 - Converted [Member] | |||||
| Derivative [Line Items] | |||||
| Derivative, Average Cap Price | 60.00 | ||||
| Derivative, Average Floor Price | 45.00 | ||||
| Oil contracts, price per bbl [Member] | Collar Contracts With Short Puts for Year 2 - Converted [Member] | Short Put [Member] | |||||
| Derivative [Line Items] | |||||
| Derivative, Notional Amount, Price Per Unit | 40.00 | ||||
| Oil contracts, price per bbl [Member] | Collar Contracts With Short Puts for Year 2 [Member] | |||||
| Derivative [Line Items] | |||||
| Derivative, Average Cap Price | 61.72 | ||||
| Derivative, Average Floor Price | 49.62 | ||||
| Oil contracts, price per bbl [Member] | Collar Contracts With Short Puts for Year 2 [Member] | Short Put [Member] | |||||
| Derivative [Line Items] | |||||
| Derivative, Notional Amount, Price Per Unit | 41.41 | ||||
| Oil contracts, price per bbl [Member] | Collar Contracts for Year 2 [Member] | |||||
| Derivative [Line Items] | |||||
| Derivative, Average Cap Price | 70.40 | ||||
| Derivative, Average Floor Price | 50.00 | ||||
| Oil contracts, price per bbl [Member] | Collar Contracts With Short Puts For Third Quarter of Year One [Member] | |||||
| Derivative [Line Items] | |||||
| Derivative, Average Cap Price | 75.94 | ||||
| Derivative, Average Floor Price | 65.41 | ||||
| Oil contracts, price per bbl [Member] | Collar Contracts With Short Puts For Third Quarter of Year One [Member] | Short Put [Member] | |||||
| Derivative [Line Items] | |||||
| Derivative, Notional Amount, Price Per Unit | 47.03 | ||||
| Oil contracts, price per bbl [Member] | Collar Contracts With Short Puts For Fourth Quarter of Year One [Member] | |||||
| Derivative [Line Items] | |||||
| Derivative, Average Cap Price | 75.94 | ||||
| Derivative, Average Floor Price | 65.41 | ||||
| Oil contracts, price per bbl [Member] | Collar Contracts With Short Puts For Fourth Quarter of Year One [Member] | Short Put [Member] | |||||
| Derivative [Line Items] | |||||
| Derivative, Notional Amount, Price Per Unit | 47.03 | ||||
| Subsequent Event [Member] | Oil contracts [Member] | Collar Contracts With Short Puts for Year 2 - Converted [Member] | |||||
| Derivative [Line Items] | |||||
| Premium Paid on Derivative Contract | $ | $ 7 | ||||
| Derivative, Nonmonetary Notional Amount | bbl / d | 8,000 | ||||
| Subsequent Event [Member] | Oil contracts, price per bbl [Member] | Collar Contracts With Short Puts for Year 2 - Converted [Member] | |||||
| Derivative [Line Items] | |||||
| Derivative, Average Cap Price | 60.75 | ||||
| Derivative, Average Floor Price | 45.00 | ||||
| Subsequent Event [Member] | Oil contracts, price per bbl [Member] | Collar Contracts With Short Puts for Year 2 - Converted [Member] | Short Put [Member] | |||||
| Derivative [Line Items] | |||||
| Derivative, Notional Amount, Price Per Unit | 40.00 | ||||
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| X | ||||||||||
- Definition Aggregate notional amount of derivative expressed in nonmonetary units. For example, the number of barrels specified in a fuel oil forward purchase contract. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The price per unit of the notional amount of the derivative contract expressed in nonmonetary units. For example, the price per barrel specified in a fuel oil forward purchase contract. No definition available.
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| X | ||||||||||
- Definition Premium Paid on Derivative Contract No definition available.
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| X | ||||||||||
- Definition The average cap rate on a group of price risk derivatives such as caps or collars. A payment or receipt is triggered if the market rate exceeds the cap rate on the contract. No definition available.
|
| X | ||||||||||
- Definition The average floor rate on a group of price risk derivatives such as floors or collars. A payment or receipt is triggered if the market rate falls below the floor rate on the contract. No definition available.
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| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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Derivative Financial Instruments Derivative Financial Instruments (Schedule of NGL Derivative Contracts Volume and Weighted Average Prices) (Details) $ in Thousands |
1 Months Ended | |
|---|---|---|
|
Jul. 26, 2016
USD ($)
bbl / d
|
Jun. 30, 2016
bbl / d
MMBTU / d
$ / MMBTU
$ / bbl
|
|
| NGL contract, in BBLS [Member] | Basis Swap Contracts for Current Year [Member] | Ethane [Member] | ||
| Derivative [Line Items] | ||
| Derivative, Nonmonetary Notional Amount | 1,000 | |
| NGL contract, in BBLS [Member] | Collar Contracts for Year 2 [Member] | Ethane [Member] | ||
| Derivative [Line Items] | ||
| Derivative, Nonmonetary Notional Amount | 3,000 | |
| NGL contract, in BBLS [Member] | Swap Contracts For Third Quarter of Year One [Member] | Propane [Member] | ||
| Derivative [Line Items] | ||
| Derivative, Nonmonetary Notional Amount | 7,500 | |
| NGL contract, in BBLS [Member] | Swap Contracts For Fourth Quarter of Year One [Member] | Propane [Member] | ||
| Derivative [Line Items] | ||
| Derivative, Nonmonetary Notional Amount | 7,500 | |
| NGL contracts, price per BBL [Member] | Collar Contracts for Year 2 [Member] | Ethane [Member] | ||
| Derivative [Line Items] | ||
| Derivative, Average Cap Price | $ / bbl | 11.83 | |
| Derivative, Average Floor Price | $ / bbl | 8.68 | |
| NGL contracts, price per BBL [Member] | Swap Contracts For Third Quarter of Year One [Member] | Propane [Member] | ||
| Derivative [Line Items] | ||
| Derivative, Swap Type, Average Fixed Price | $ / bbl | 21.57 | |
| NGL contracts, price per BBL [Member] | Swap Contracts For Fourth Quarter of Year One [Member] | Propane [Member] | ||
| Derivative [Line Items] | ||
| Derivative, Swap Type, Average Fixed Price | $ / bbl | 21.57 | |
| NGL contracts, price per BBL [Member] | Basis Swap Contracts for Third Quarter of Year One [Member] | Ethane [Member] | ||
| Derivative [Line Items] | ||
| Derivative, Swap Type, Average Fixed Price | $ / MMBTU | 0.91 | |
| NGL contracts, price per BBL [Member] | Basis Swap Contracts for Fourth Quarter of Year One [Member] | Ethane [Member] | ||
| Derivative [Line Items] | ||
| Derivative, Swap Type, Average Fixed Price | $ / MMBTU | 0.91 | |
| NGL contract, MMBtu Equivalent [Member] | Basis Swap Contracts for Current Year [Member] | Ethane [Member] | ||
| Derivative [Line Items] | ||
| Derivative, Nonmonetary Notional Amount | MMBTU / d | 2,768 | |
| NGL contract, MMBtu Equivalent [Member] | Basis Swap Contracts for Third Quarter of Year One [Member] | Ethane [Member] | ||
| Derivative [Line Items] | ||
| Derivative, Nonmonetary Notional Amount | MMBTU / d | 2,768 | |
| NGL contract, MMBtu Equivalent [Member] | Basis Swap Contracts for Fourth Quarter of Year One [Member] | Ethane [Member] | ||
| Derivative [Line Items] | ||
| Derivative, Nonmonetary Notional Amount | MMBTU / d | 2,768 | |
| Subsequent Event [Member] | NGL contract, in BBLS [Member] | Swap Contracts For Third Quarter of Year One [Member] | Propane [Member] | ||
| Derivative [Line Items] | ||
| Derivative, Nonmonetary Notional Amount | 1,500 | |
| Proceeds from Termination of Propane Swap Contracts | $ | $ 167 | |
| Propane [Member] | NGL contract, in BBLS [Member] | Swap Contracts for Year 2 [Member] | ||
| Derivative [Line Items] | ||
| Derivative, Nonmonetary Notional Amount | 0 | |
| Propane [Member] | NGL contracts, price per BBL [Member] | Swap Contracts for Year 2 [Member] | ||
| Derivative [Line Items] | ||
| Derivative, Swap Type, Average Fixed Price | $ / bbl | 0.00 |
| X | ||||||||||
- Definition Aggregate notional amount of derivative expressed in nonmonetary units. For example, the number of barrels specified in a fuel oil forward purchase contract. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
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- Definition Proceeds from Termination of Propane Swap Contracts No definition available.
|
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- Definition The average cap rate on a group of price risk derivatives such as caps or collars. A payment or receipt is triggered if the market rate exceeds the cap rate on the contract. No definition available.
|
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- Definition The average floor rate on a group of price risk derivatives such as floors or collars. A payment or receipt is triggered if the market rate falls below the floor rate on the contract. No definition available.
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
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- Definition Average fixed price related to the group of price risk swap derivatives. No definition available.
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Derivative Financial Instruments Derivative Financial Instruments (Schedule of Gas Derivative Contracts Volume and Weighted Average Prices) (Details) |
Jul. 26, 2016
MMBTU / d
$ / MMBTU
|
Jun. 30, 2016
MMBTU / d
$ / MMBTU
|
|||||
|---|---|---|---|---|---|---|---|
| Swap Contracts For Third Quarter of Year One [Member] | Gas contracts, in MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Nonmonetary Notional Amount | MMBTU / d | 70,000 | ||||||
| Swap Contracts For Third Quarter of Year One [Member] | Gas contracts, price per MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Swap Type, Average Fixed Price | 4.06 | ||||||
| Swap Contracts For Fourth Quarter of Year One [Member] | Gas contracts, in MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Nonmonetary Notional Amount | MMBTU / d | 70,000 | ||||||
| Swap Contracts For Fourth Quarter of Year One [Member] | Gas contracts, price per MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Swap Type, Average Fixed Price | 4.06 | ||||||
| Collar Contracts With Short Puts for Year 2 [Member] | Gas contracts, in MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Nonmonetary Notional Amount | MMBTU / d | 80,000 | ||||||
| Collar Contracts With Short Puts for Year 2 [Member] | Gas contracts, price per MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Average Cap Price | 3.15 | ||||||
| Derivative, Average Floor Price | 2.75 | ||||||
| Collar Contracts With Short Puts for Year 2 [Member] | Gas contracts, price per MMBTU [Member] | Short Put [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Notional Amount, Price Per Unit | 2.35 | ||||||
| Collar Contracts With Short Puts for Year 3 [Member] | Gas contracts, in MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Nonmonetary Notional Amount | MMBTU / d | 50,000 | ||||||
| Collar Contracts With Short Puts for Year 3 [Member] | Gas contracts, price per MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Average Cap Price | 3.40 | ||||||
| Derivative, Average Floor Price | 2.75 | ||||||
| Collar Contracts With Short Puts for Year 3 [Member] | Gas contracts, price per MMBTU [Member] | Short Put [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Notional Amount, Price Per Unit | 2.25 | ||||||
| Swap Contracts for Year 2 [Member] | Gas contracts, in MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Nonmonetary Notional Amount | MMBTU / d | 0 | ||||||
| Swap Contracts for Year 2 [Member] | Gas contracts, price per MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Swap Type, Average Fixed Price | 0.00 | ||||||
| Swap Contracts for Year 3 [Member] | Gas contracts, in MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Nonmonetary Notional Amount | MMBTU / d | 0 | ||||||
| Swap Contracts for Year 3 [Member] | Gas contracts, price per MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Swap Type, Average Fixed Price | 0.00 | ||||||
| Collar Contracts With Short Puts For Third Quarter of Year One [Member] | Gas contracts, in MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Nonmonetary Notional Amount | MMBTU / d | 180,000 | ||||||
| Collar Contracts With Short Puts For Third Quarter of Year One [Member] | Gas contracts, price per MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Average Cap Price | 4.01 | ||||||
| Derivative, Average Floor Price | 3.24 | ||||||
| Collar Contracts With Short Puts For Third Quarter of Year One [Member] | Gas contracts, price per MMBTU [Member] | Short Put [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Notional Amount, Price Per Unit | 2.78 | ||||||
| Collar Contracts With Short Puts For Fourth Quarter of Year One [Member] | Gas contracts, in MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Nonmonetary Notional Amount | MMBTU / d | 180,000 | ||||||
| Collar Contracts With Short Puts For Fourth Quarter of Year One [Member] | Gas contracts, price per MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Average Cap Price | 4.01 | ||||||
| Derivative, Average Floor Price | 3.24 | ||||||
| Collar Contracts With Short Puts For Fourth Quarter of Year One [Member] | Gas contracts, price per MMBTU [Member] | Short Put [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Notional Amount, Price Per Unit | 2.78 | ||||||
| Subsequent Event [Member] | Collar Contracts With Short Puts for Year 2 [Member] | Gas contracts, price per MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Average Cap Price | 3.76 | ||||||
| Subsequent Event [Member] | Collar Contracts With Short Puts for Year 2 [Member] | Gas contracts, price per MMBTU [Member] | Short Put [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Notional Amount, Price Per Unit | 2.50 | ||||||
| Subsequent Event [Member] | Collar Contracts With Short Puts for Year 3 [Member] | Gas contracts, in MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Nonmonetary Notional Amount | MMBTU / d | 50,000 | ||||||
| Subsequent Event [Member] | Collar Contracts With Short Puts for Year 3 [Member] | Gas contracts, price per MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Average Floor Price | 3.00 | ||||||
| Gulf Coast [Member] | Basis Swap Contracts for Third Quarter of Year One [Member] | Gas contracts, in MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Nonmonetary Notional Amount | MMBTU / d | 10,000 | ||||||
| Gulf Coast [Member] | Basis Swap Contracts for Third Quarter of Year One [Member] | Gas contracts, price per MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Swap Type, Average Fixed Price | 0.00 | ||||||
| Gulf Coast [Member] | Basis Swap Contracts for Fourth Quarter of Year One [Member] | Gas contracts, in MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Nonmonetary Notional Amount | MMBTU / d | 10,000 | ||||||
| Gulf Coast [Member] | Basis Swap Contracts for Fourth Quarter of Year One [Member] | Gas contracts, price per MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Swap Type, Average Fixed Price | 0.00 | ||||||
| Gulf Coast [Member] | Basis Swap Contracts for Year 2 [Member] | Gas contracts, in MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Nonmonetary Notional Amount | MMBTU / d | [1] | 0 | |||||
| Gulf Coast [Member] | Basis Swap Contracts for Year 2 [Member] | Gas contracts, price per MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Swap Type, Average Fixed Price | 0.00 | ||||||
| Gulf Coast [Member] | Basis Swap Contracts for Year 3 [Member] | Gas contracts, in MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Nonmonetary Notional Amount | MMBTU / d | [1] | 0 | |||||
| Gulf Coast [Member] | Basis Swap Contracts for Year 3 [Member] | Gas contracts, price per MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Swap Type, Average Fixed Price | 0.00 | ||||||
| Mid-Continent [Member] | Basis Swap Contracts for Third Quarter of Year One [Member] | Gas contracts, in MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Nonmonetary Notional Amount | MMBTU / d | 15,000 | ||||||
| Mid-Continent [Member] | Basis Swap Contracts for Third Quarter of Year One [Member] | Gas contracts, price per MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Swap Type, Average Fixed Price | (0.32) | ||||||
| Mid-Continent [Member] | Basis Swap Contracts for Fourth Quarter of Year One [Member] | Gas contracts, in MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Nonmonetary Notional Amount | MMBTU / d | 15,000 | ||||||
| Mid-Continent [Member] | Basis Swap Contracts for Fourth Quarter of Year One [Member] | Gas contracts, price per MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Swap Type, Average Fixed Price | (0.32) | ||||||
| Mid-Continent [Member] | Basis Swap Contracts for Year 2 [Member] | Gas contracts, in MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Nonmonetary Notional Amount | MMBTU / d | [1] | 45,000 | |||||
| Mid-Continent [Member] | Basis Swap Contracts for Year 2 [Member] | Gas contracts, price per MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Swap Type, Average Fixed Price | (0.32) | ||||||
| Mid-Continent [Member] | Basis Swap Contracts for Year 3 [Member] | Gas contracts, in MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Nonmonetary Notional Amount | MMBTU / d | [1],[2] | 0 | |||||
| Mid-Continent [Member] | Basis Swap Contracts for Year 3 [Member] | Gas contracts, price per MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Swap Type, Average Fixed Price | 0.00 | ||||||
| Permian Basin [Member] | Basis Swap Contracts for Third Quarter of Year One [Member] | Gas contracts, in MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Nonmonetary Notional Amount | MMBTU / d | 0 | ||||||
| Permian Basin [Member] | Basis Swap Contracts for Third Quarter of Year One [Member] | Gas contracts, price per MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Swap Type, Average Fixed Price | 0.00 | ||||||
| Permian Basin [Member] | Basis Swap Contracts for Fourth Quarter of Year One [Member] | Gas contracts, in MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Nonmonetary Notional Amount | MMBTU / d | 34,946 | ||||||
| Permian Basin [Member] | Basis Swap Contracts for Fourth Quarter of Year One [Member] | Gas contracts, price per MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Swap Type, Average Fixed Price | 0.41 | ||||||
| Permian Basin [Member] | So Cal Basis Swap Contracts for Year 2 [Member] | Gas contracts, in MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Nonmonetary Notional Amount | MMBTU / d | 9,863 | ||||||
| Permian Basin [Member] | So Cal Basis Swap Contracts for Year 2 [Member] | Gas contracts, price per MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Swap Type, Average Fixed Price | 0.37 | ||||||
| Permian Basin [Member] | So Cal Basis Swap Contracts for Year 3 [Member] | Gas contracts, in MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Nonmonetary Notional Amount | MMBTU / d | 0 | ||||||
| Permian Basin [Member] | So Cal Basis Swap Contracts for Year 3 [Member] | Gas contracts, price per MMBTU [Member] | |||||||
| Derivative [Line Items] | |||||||
| Derivative, Swap Type, Average Fixed Price | 0.00 | ||||||
| |||||||
| X | ||||||||||
- Definition Aggregate notional amount of derivative expressed in nonmonetary units. For example, the number of barrels specified in a fuel oil forward purchase contract. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The price per unit of the notional amount of the derivative contract expressed in nonmonetary units. For example, the price per barrel specified in a fuel oil forward purchase contract. No definition available.
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- Definition The average cap rate on a group of price risk derivatives such as caps or collars. A payment or receipt is triggered if the market rate exceeds the cap rate on the contract. No definition available.
|
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- Definition The average floor rate on a group of price risk derivatives such as floors or collars. A payment or receipt is triggered if the market rate falls below the floor rate on the contract. No definition available.
|
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Average fixed price related to the group of price risk swap derivatives. No definition available.
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Derivative Financial Instruments (Schedule Of Derivative Instruments) (Details) - USD ($) $ in Millions |
Jun. 30, 2016 |
Dec. 31, 2015 |
|---|---|---|
| Derivative [Line Items] | ||
| Derivative Assets, Current | $ 273 | $ 694 |
| Derivative Assets, Noncurrent | 12 | 64 |
| Derivative Liabilities, Current | 8 | 0 |
| Derivative Liabilities, Noncurrent | 43 | 1 |
| Not Designated as Hedging Instrument [Member] | ||
| Derivative [Line Items] | ||
| Derivative Asset, Fair Value, Net | 285 | 758 |
| Derivative Liability, Fair Value, Net | 51 | 1 |
| Not Designated as Hedging Instrument [Member] | Commodity Price Derivatives [Member] | Derivatives - Current [Member] | ||
| Derivative [Line Items] | ||
| Total derivatives, Asset, Gross | 294 | 695 |
| Derivative Liability, Fair Value, Gross Liability | 29 | 1 |
| Derivative Assets Offset In Balance Sheet | (21) | (1) |
| Derivative Liabilities Offset In Balance Sheet | (21) | (1) |
| Derivative Assets, Current | 273 | 694 |
| Derivative Liabilities, Current | 8 | 0 |
| Not Designated as Hedging Instrument [Member] | Commodity Price Derivatives [Member] | Derivatives - Noncurrent [Member] | ||
| Derivative [Line Items] | ||
| Total derivatives, Asset, Gross | 18 | 64 |
| Derivative Liability, Fair Value, Gross Liability | 40 | 1 |
| Derivative Assets Offset In Balance Sheet | (6) | 0 |
| Derivative Liabilities Offset In Balance Sheet | (6) | 0 |
| Derivative Assets, Noncurrent | 12 | 64 |
| Derivative Liabilities, Noncurrent | 34 | $ 1 |
| Not Designated as Hedging Instrument [Member] | Interest Rate Derivatives [Member] | Derivatives - Noncurrent [Member] | ||
| Derivative [Line Items] | ||
| Derivative Liability, Fair Value, Gross Liability | 9 | |
| Derivative Liabilities Offset In Balance Sheet | 0 | |
| Derivative Liabilities, Noncurrent | $ 9 |
| X | ||||||||||
- Definition Derivative Assets Offset In Balance Sheet No definition available.
|
| X | ||||||||||
- Definition Derivative Liabilities Offset In Balance Sheet No definition available.
|
| X | ||||||||||
- 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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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 after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Fair value, before 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. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Fair value, after offset of derivative liability, of 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, before offset against an obligation to return collateral under a master netting arrangement. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Fair value, before effects of master netting arrangements, of a financial liability or 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. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Fair value, after offset of derivative asset, of financial liability or 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, elected not to be and before offset against a right to receive collateral under a master netting arrangement. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Fair value, after the effects of master netting arrangements, of a financial liability or 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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Fair value, after the effects of master netting arrangements, of a financial liability or 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 after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Derivative Financial Instruments (Schedule Of Derivative Obligations Under Terminated Hedge Arrangements) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2016 |
Jun. 30, 2015 |
Jun. 30, 2016 |
Jun. 30, 2015 |
|
| Derivative [Line Items] | ||||
| Derivative gains, net | $ (229) | $ (197) | $ (186) | $ 44 |
| Commodity Price Derivatives [Member] | Derivative Gains (Losses), Net [Member] | ||||
| Derivative [Line Items] | ||||
| Derivative gains, net | (222) | (212) | (177) | 39 |
| Interest Rate Derivatives [Member] | Derivative Gains (Losses), Net [Member] | ||||
| Derivative [Line Items] | ||||
| Derivative gains, net | $ (7) | $ 15 | $ (9) | $ 5 |
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Exploratory Costs (Schedule Of Capitalized Exploratory Well And Project Activity) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended |
|---|---|---|
Jun. 30, 2016 |
Jun. 30, 2016 |
|
| Beginning capitalized exploratory costs | $ 361 | $ 306 |
| Additions to exploratory costs pending the determination of proved reserves | 314 | 664 |
| Reclassification due to determination of proved reserves | (318) | (612) |
| Exploratory well costs charged to exploration expense | 0 | (1) |
| Ending capitalized exploratory costs | $ 357 | $ 357 |
| X | ||||||||||
- Definition Additions to capitalized exploratory well costs that were added during the reporting period pending the determination of proved reserves. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Capitalized exploratory well costs that were expensed during the year because proved reserves were not found at the exploratory well. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The amount of capitalized exploratory well costs that is pending the determination of proved reserves. This does not include amounts that were capitalized and subsequently expensed in the same annual period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Previously capitalized costs of the drilling of wells that were reclassified as part of the costs of the enterprise's wells and related equipment and facilities at the time that proved reserves were found. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
Exploratory Costs Exploratory Well Costs (Capitalized Exploratory Costs And the Number Of Projects For Which Exploratory Costs Have Been Capitalized) (Details) $ in Millions |
Jun. 30, 2016
USD ($)
|
Mar. 31, 2016
USD ($)
|
Dec. 31, 2015
USD ($)
|
|---|---|---|---|
| Property, Plant and Equipment [Line Items] | |||
| Capitalized Exploratory Well Costs that Have Been Capitalized for Period of One Year or Less | $ 355 | $ 303 | |
| Capitalized Exploratory Well Costs that Have Been Capitalized for Period Greater than One Year | 2 | 3 | |
| Capitalized Exploratory Well Costs | $ 357 | $ 361 | $ 306 |
| Projects that have Exploratory Well Costs that have been Capitalized for Period Greater than One Year, Number of Projects | 1 | 1 |
| X | ||||||||||
- Definition The amount of capitalized exploratory well costs that is pending the determination of proved reserves. This does not include amounts that were capitalized and subsequently expensed in the same annual period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The amount of exploratory well costs that have been capitalized for a period of greater than one year after the completion of drilling. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The amount of exploratory well costs that have been capitalized for a period of one year or less after the completion of drilling. No definition available.
|
| X | ||||||||||
- Definition The number of projects for which exploratory well costs have been capitalized for a period of greater than one year after the completion of drilling. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
Long-Term Debt (Details) $ in Millions |
Jun. 30, 2016
USD ($)
Rate
|
|---|---|
| Debt Instrument [Line Items] | |
| Maximum Borrowing Capacity | $ 1,500 |
| Outstanding borrowing | $ 0 |
| Five Point Eight Seven Five Percent Senior Notes Due Two Thousand Sixteen [Member] | |
| Debt Instrument [Line Items] | |
| Debt Instrument, Interest Rate, Stated Percentage | Rate | 5.875% |
| Senior Notes | $ 455 |
| Six Point Six Five Percent Senior Notes Due Two Thousand Seventeen [Member] | |
| Debt Instrument [Line Items] | |
| Debt Instrument, Interest Rate, Stated Percentage | Rate | 6.65% |
| Senior Notes | $ 485 |
| X | ||||||||||
- Definition Contractual interest rate for funds borrowed, under the debt agreement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Incentive Plans Incentive Plans (Stock-based compensation) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2016 |
Jun. 30, 2015 |
Jun. 30, 2016 |
Jun. 30, 2015 |
Dec. 31, 2015 |
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||
| Deferred Compensation Arrangement with Individual, Compensation Expense | $ 29 | $ 32 | $ 53 | $ 61 | |
| Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized | 154 | $ 154 | |||
| Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | 3 years | ||||
| Restricted Stock Liability Awards [Member] | |||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||
| Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized | 35 | $ 35 | |||
| Accounts Payable, Current | $ 9 | $ 9 | $ 16 | ||
| X | ||||||||||
- Definition Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The compensation expense recognized during the period pertaining to the deferred compensation arrangement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Unrecognized cost of unvested share-based compensation awards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Details
|
Incentive Plans Incentive Plans (Share Based Incentive Award Activity) (Details) - shares |
6 Months Ended | |
|---|---|---|
Jun. 30, 2016 |
Dec. 31, 2015 |
|
| Restricted Stock Equity Awards [Member] | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number | 1,109,740 | 1,081,650 |
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period | 491,104 | |
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period | (438,092) | |
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period | (24,922) | |
| Restricted Stock Liability Awards [Member] | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number | 302,051 | 271,031 |
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period | 175,988 | |
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period | (134,658) | |
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period | (10,310) | |
| Performance Units [Member] | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number | 239,170 | 148,547 |
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period | 104,114 | |
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period | (8,670) | |
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period | (4,821) | |
| Stock Options [Member] | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | 199,058 | 199,058 |
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | 0 | |
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares | 0 | |
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period | 0 |
| X | ||||||||||
- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Gross number of share options (or share units) granted during the period. No definition available.
|
| X | ||||||||||
- Definition Number of options outstanding, including both vested and non-vested options. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Number of options vested. No definition available.
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Asset Retirement Obligations (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2016 |
Jun. 30, 2015 |
Jun. 30, 2016 |
Jun. 30, 2015 |
Dec. 31, 2015 |
|
| Asset Retirement Obligation, Roll Forward Analysis [Roll Forward] | |||||
| Beginning asset retirement obligations | $ 285 | $ 188 | $ 285 | $ 189 | |
| Asset Retirement Obligation, Liabilities Incurred | 0 | 0 | 0 | 1 | |
| Liabilities settled | (9) | (4) | (13) | (9) | |
| Accretion of discount from continuing operations | 5 | 3 | 9 | 6 | |
| Ending asset retirement obligations | 281 | $ 187 | 281 | $ 187 | |
| Asset retirement obligations, current portions | $ 42 | $ 42 | $ 40 | ||
| X | ||||||||||
- Definition The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of accretion expense recognized during the period that is associated with an asset retirement obligation. Accretion expense measures and incorporates changes due to the passage of time into the carrying amount of the liability. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Current portion of the carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of asset retirement obligations incurred during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of asset retirement obligations settled, or otherwise disposed of, during the period. This may include asset retirement obligations transferred to third parties associated with the sale of a long-lived asset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
|
Interest And Other Income (Components Of Interest And Other Income) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||||
|---|---|---|---|---|---|---|
Jun. 30, 2016 |
Jun. 30, 2015 |
Jun. 30, 2016 |
Jun. 30, 2015 |
|||
| Interest and Other Income [Abstract] | ||||||
| Interest income | $ 5 | $ 0 | $ 9 | $ 0 | ||
| Deferred compensation plan income | 0 | 0 | 2 | 3 | ||
| Equity interest in income of unconsolidated affiliate | [1] | 0 | 3 | 0 | 5 | |
| Other income | 1 | 4 | 2 | 6 | ||
| Total interest and other income | $ 6 | $ 7 | $ 13 | $ 14 | ||
| ||||||
| X | ||||||||||
- Definition Deferred Compensation Plan Income No definition available.
|
| X | ||||||||||
- Definition This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Reflects the sum of all other revenue and income recognized by the entity in the period not otherwise specified in the income statement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Includes all other interest income, net of discount accretion and premium amortization, and dividend income. It may include dividend income from equity securities that do not have readily determinable fair values that are reportable in Other Assets, and interest income on interest-only strips receivable (not in the form of a security) that are included in Other Assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The aggregate amount of other income amounts, the components of which are not separately disclosed on the income statement, resulting from ancillary business-related activities (that is, excluding major activities considered part of the normal operations of the business) also known as other nonoperating income recognized for the period. Such amounts may include: (a) dividends, (b) interest on securities, (c) profits on securities (net of losses), and (d) miscellaneous other income items. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
Other Expense (Schedule Of Components Of Other Expense) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Jun. 30, 2016 |
Jun. 30, 2015 |
Jun. 30, 2016 |
Jun. 30, 2015 |
||||||||
| Other Expense [Abstract] | |||||||||||
| Transportation commitment charges | [1] | $ 25 | $ 13 | $ 50 | $ 27 | ||||||
| Above market and idle drilling and well services equipment charges | [2] | 10 | 28 | 31 | 51 | ||||||
| Third-party vertical integration services | 16 | (5) | 29 | (4) | |||||||
| Terminated drilling rig contract charges | 1 | 0 | 16 | 0 | |||||||
| Tangible Asset Impairment Charges | [3] | 1 | 3 | 5 | 9 | ||||||
| Restructuring Charges | 1 | 15 | 4 | 15 | |||||||
| Other | 13 | 4 | 19 | 9 | |||||||
| Total other expense | 67 | 58 | 154 | 107 | |||||||
| GrossRevenuesIncludedInThirdPartyLossFromVerticalIntegrationServices | 56 | 86 | 124 | 198 | |||||||
| GrossExpensesIncludedInThirdPartyLossFromVerticalIntegrationServices | $ 72 | $ 81 | $ 153 | $ 194 | |||||||
| |||||||||||
| X | ||||||||||
- Definition GrossExpensesIncludedInThirdPartyLossFromVerticalIntegrationServices No definition available.
|
| X | ||||||||||
- Definition GrossRevenuesIncludedInThirdPartyLossFromVerticalIntegrationServices No definition available.
|
| X | ||||||||||
- Definition Expenses from idle and terminate rigs. No definition available.
|
| X | ||||||||||
- Definition Other Expense [Abstract] No definition available.
|
| X | ||||||||||
- Definition Terminated Drilling Rig Expense No definition available.
|
| X | ||||||||||
- Definition Third-party vertical integration services (b) No definition available.
|
| X | ||||||||||
- Definition Transportation Commitment Loss No definition available.
|
| X | ||||||||||
- Definition Amount of general expenses not normally included in Other Operating Costs and Expenses. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The aggregate amount of other expense amounts, the components of which are not separately disclosed on the income statement, resulting from ancillary business-related activities (that is, excluding major activities considered part of the normal operations of the business) also known as other nonoperating expense recognized during the period. Such amounts may include: (a) unusual costs, (b) loss on foreign exchange transactions, (c) losses on securities (net of profits), and (d) miscellaneous other expense items. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Discloses the amount charged against the accrued restructuring reserves, or earnings if not previously accrued, during the period for the specified type of restructuring cost. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The charge against earnings resulting from the aggregate write down of tangible assets from their carrying value to their fair value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
Income Taxes (Schedule Of Income Tax (Provisions) Benefits Attributable To Income From Continuing Operations) (Details) - USD ($) |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2016 |
Jun. 30, 2015 |
Jun. 30, 2016 |
Jun. 30, 2015 |
|
| Income Tax Disclosure [Abstract] | ||||
| Current income taxes | $ 0 | $ (1,000,000) | $ 0 | $ (1,000,000) |
| Deferred income taxes | 143,000,000 | 124,000,000 | 284,000,000 | 161,000,000 |
| Income tax benefit (provision) | $ 143,000,000 | $ 123,000,000 | $ 284,000,000 | $ 160,000,000 |
| Effective Tax Rate | 35.00% | 36.00% | 35.00% | 35.00% |
| Unrecognized Tax Benefits | $ 0 | $ 0 | ||
| X | ||||||||||
- Definition Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
Net Income Per Share (Reconciliation Of Earnings Attributable To Common Stockholders, Basic And Diluted) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2016 |
Jun. 30, 2015 |
Jun. 30, 2016 |
Jun. 30, 2015 |
|
| Statement Operating Activities Segment [Line Items] | ||||
| Basic income (loss) from continuing operations attributable to common stockholders | $ (268) | $ (218) | $ (535) | $ (296) |
| Diluted income (loss) from continuing operations attributable to common stockholders | (268) | (218) | (535) | (296) |
| Continuing Operations [Member] | ||||
| Statement Operating Activities Segment [Line Items] | ||||
| Basic income (loss) from continuing operations attributable to common stockholders | (268) | (217) | (535) | (292) |
| Diluted income (loss) from continuing operations attributable to common stockholders | (268) | (217) | (535) | (292) |
| Discontinued Operations [Member] | ||||
| Statement Operating Activities Segment [Line Items] | ||||
| Basic income (loss) from continuing operations attributable to common stockholders | 0 | (1) | 0 | (4) |
| Diluted income (loss) from continuing operations attributable to common stockholders | $ 0 | $ (1) | $ 0 | $ (4) |
| X | ||||||||||
- Definition Statement Operating Activities Segment [Line Items] No definition available.
|
| X | ||||||||||
- Definition Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Net Income or Loss Available to Common Stockholders plus adjustments resulting from the assumption that dilutive convertible securities were converted, options or warrants were exercised, or that other shares were issued upon the satisfaction of certain conditions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Net Income Per Share (Reconciliation Of Basic To Diluted Weighted Average Common Shares Outstanding) (Details) - shares shares in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2016 |
Jun. 30, 2015 |
Jun. 30, 2016 |
Jun. 30, 2015 |
|
| Weighted Average Number of Shares Outstanding Reconciliation [Line Items] | ||||
| Basic | 164 | 149 | 163 | 149 |
| Diluted | 164 | 149 | 163 | 149 |
| X | ||||||||||
- Definition Weighted Average Number of Shares Outstanding Reconciliation [Line Items] No definition available.
|
| X | ||||||||||
- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
Subsequent Events (Details) - Subsequent Event [Member] $ in Millions |
1 Months Ended |
|---|---|
|
Jul. 26, 2016
USD ($)
| |
| Subsequent Event [Line Items] | |
| Maturities of Senior Debt | $ 455 |
| Proceeds from Collection of Notes Receivable | $ 501 |
| X | ||||||||||
- Definition The cash outflow for the settlement of long-term borrowing, with the highest claim on the assets of the entity in case of bankruptcy or liquidation, as it matures. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The cash inflow associated with principal collections from a borrowing supported by a written promise to pay an obligation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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. No definition available.
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- Details
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