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Debt (Schedule Of Debt Instruments) (Details) - USD ($) $ in Millions | 9 Months Ended |
--- | --- | ---
Sep. 30, 2015 | Dec. 31, 2014
Debt Instrument [Line Items] |  |  |
Commercial Paper |  | $ 0 | $ 932
Net (discount) premium on debentures and notes |  | (27) | (18)
Total debt |  | 11,900 | 11,262
Less amount classified as short-term debt | [1] | 500 | 1,432
Total long-term debt |  | $ 11,400 | 9,830
Floating Rate due December 15, 2015 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt, maturity date |  | Dec. 15, 2015 |
Short-term debt |  | $ 500 | 500
Floating Rate Due December 15, 2016 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt, maturity date |  | Dec. 15, 2016 |
Long-term debt, gross |  | $ 350 | $ 350
8.25% Due July 1, 2018 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt interest rate, stated percentage |  | 8.25% | 8.25%
Debt, maturity date |  | Jul. 01, 2018 |
Long-term debt, gross |  | $ 125 | $ 125
2.25% Due December 15, 2018 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt interest rate, stated percentage |  | 2.25% | 2.25%
Debt, maturity date |  | Dec. 15, 2018 |
Long-term debt, gross |  | $ 750 | $ 750
6.30% Due January 15, 2019 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt interest rate, stated percentage |  | 6.30% | 6.30%
Debt, maturity date |  | Jan. 15, 2019 |
Long-term debt, gross |  | $ 700 | $ 700
4.00% Due July 15, 2021 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt interest rate, stated percentage |  | 4.00% | 4.00%
Debt, maturity date |  | Jul. 15, 2021 |
Long-term debt, gross |  | $ 500 | $ 500
3.25% due May 15, 2022 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt interest rate, stated percentage |  | 3.25% | 3.25%
Debt, maturity date |  | May 15, 2022 |
Long-term debt, gross |  | $ 1,000 | $ 1,000
7.50% due September 15, 2027 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt interest rate, stated percentage |  | 7.50% | 7.50%
Debt, maturity date |  | Sep. 15, 2027 |
Long-term debt, gross |  | $ 150 | $ 150
7.875% due September 30, 2031 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt interest rate, stated percentage |  | 7.875% | 7.875%
Debt, maturity date |  | Sep. 30, 2031 |
Long-term debt, gross |  | $ 1,250 | $ 1,250
7.95% due April 15, 2032 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt interest rate, stated percentage |  | 7.95% | 7.95%
Debt, maturity date |  | Apr. 15, 2032 |
Long-term debt, gross |  | $ 1,000 | $ 1,000
5.60% due July 15, 2041 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt interest rate, stated percentage |  | 5.60% | 5.60%
Debt, maturity date |  | Jul. 15, 2041 |
Long-term debt, gross |  | $ 1,250 | $ 1,250
4.75% due May 15, 2042 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt interest rate, stated percentage |  | 4.75% | 4.75%
Debt, maturity date |  | May 15, 2042 |
Long-term debt, gross |  | $ 750 | $ 750
5.00% due June 15, 2045 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt interest rate, stated percentage |  | 5.00% | 5.00%
Debt, maturity date |  | Jun. 15, 2045 |
Long-term debt, gross |  | $ 750 |
Devon [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Total debt |  | 9,048 | $ 9,239
EnLink [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Credit facilities |  | 175 | 237
Net (discount) premium on debentures and notes |  | 14 | 23
Total debt |  | $ 2,852 | $ 2,023
EnLink [Member] | 2.70% due April 1, 2019 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt interest rate, stated percentage |  | 2.70% | 2.70%
Debt, maturity date |  | Apr. 01, 2019 |
Long-term debt, gross |  | $ 400 | $ 400
EnLink [Member] | 7.125% due June 1, 2022 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt interest rate, stated percentage |  | 7.125% | 7.125%
Debt, maturity date |  | Jun. 01, 2022 |
Long-term debt, gross |  | $ 163 | $ 163
EnLink [Member] | 4.40% due April 1, 2024 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt interest rate, stated percentage |  | 4.40% | 4.40%
Debt, maturity date |  | Apr. 01, 2024 |
Long-term debt, gross |  | $ 550 | $ 550
EnLink [Member] | 4.15% due June 1, 2025 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt interest rate, stated percentage |  | 4.15% | 4.15%
Debt, maturity date |  | Jun. 01, 2025 |
Long-term debt, gross |  | $ 750 |
EnLink [Member] | 5.60% due April 1, 2044 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt interest rate, stated percentage |  | 5.60% | 5.60%
Debt, maturity date |  | Apr. 01, 2044 |
Long-term debt, gross |  | $ 350 | $ 350
EnLink [Member] | 5.05% due April 1, 2045 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt interest rate, stated percentage |  | 5.05% | 5.05%
Debt, maturity date |  | Apr. 01, 2045 |
Long-term debt, gross |  | $ 450 | $ 300
[1] | Short-term debt as of September 30, 2015 consists of $500 million floating rate due on December 15, 2015. Short-term debt as of December 31, 2014 consists of $932 million of commercial paper and $500 million floating rate due on December 15, 2015.

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- Definition Carrying value as of the balance sheet date of short-term borrowings using unsecured obligations issued by banks, corporations and other borrowers to investors. The maturities of these money market securities generally do not exceed 270 days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(a)(3)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.13(2)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 7 + Details
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- 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 + Details
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