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Interest And Other Income (Components Of Interest And Other Income) (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Interest and Other Income [Abstract]        
Equity interest in income of unconsolidated affiliate [1] $ 0 $ 3 $ 5 $ 10
Deferred compensation plan income 0 0 4 3
Interest income 2 0 2 0
Third-party income (loss) from vertical integration services [2] (20) (2) (16) (9)
Other income 1 1 5 5
Total interest and other income (17) 2 0 9
GrossRevenuesIncludedInThirdPartyIncomeFromVerticalIntegrationServices 66 125 264 321
GrossExpensesIncludedInThirdPartyIncomeFromVerticalIntegrationServices $ 86 $ 127 $ 280 $ 330
[1] (a)The Company accounted for its investment in EFS Midstream LLC ("EFS Midstream") prior to its sale in July 2015 using the equity method. EFS Midstream provided gathering, treating and transportation services for the Company.
[2] (b)Loss from vertical integration services primarily represents net margins that result from Company-provided fracture stimulation and service operations, which are ancillary to and supportive of the Company's oil and gas joint operating activities, and do not represent intercompany transactions. For the three and nine months ended September 30, 2015, these vertical integration net margins included $66 million and $264 million, respectively, of revenues and $86 million and $280 million, respectively, of costs and expenses. For the same periods in 2014, these vertical integration net margins included $125 million and $321 million, respectively, of revenues and $127 million and $330 million, respectively, of costs and expenses.