XML 68 R51.htm IDEA: XBRL DOCUMENT v3.19.1
Dispositions - International Segment (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2019
Dec. 31, 2018
Mar. 31, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Proceeds from sale of oil and gas property and equipment $ 13   $ 1,180
Income before income taxes 27   524
International E&P | U.K. | Disposal Group, Disposed of by Sale, Not Discontinued Operations      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Proceeds from sale of oil and gas property and equipment 140    
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents   $ 350  
Disposal group, assets 947    
Disposal group, liabilities 997    
Asset retirement obligations 960    
Income before income taxes 13   52
International E&P | Non-core [Member] | Disposal Group, Held-for-sale, Not Discontinued Operations      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Proceeds from sale of oil and gas property and equipment   63  
Disposal group, assets 145 58  
Disposal group, liabilities $ 69 $ 17  
Disposal Group, Including Discontinued Operation, Percentage of Oil and Gas Property Disposed   15.00%  
International E&P | Marathon Oil Libya Limited | Disposal Group, Disposed of by Sale, Not Discontinued Operations      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Proceeds from sale of oil and gas property and equipment     $ 450
Disposal Group, Including Discontinued Operation, Percentage of Oil and Gas Property Disposed     16.33%
Net gain (loss) on disposal of assets     $ 255