XML 108 R48.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Discontinued Operations - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Mar. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Contractual Obligation   $ 1,013    
Gain (Loss) on Disposition of Proved Property   0    
Increase (Decrease) in Other Accrued Liabilities   (28) $ (47) $ (53)
San Juan Legacy [Member]        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Gain (Loss) on Disposition of Proved Property       2
San Juan Gallup [Member]        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Gain (Loss) on Disposition of Proved Property $ 138      
Discontinued Operation, Provision for Loss (Gain) on Disposal, before Income Tax 147      
Piceance Basin [Member]        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
DisposalGroupOperatingTaxRefund       10
Gathering and Treating [Member] | San Juan Gallup [Member]        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Contractual Obligation 309 $ 277    
Guarantee Type, Other [Member] | San Juan Gallup [Member]        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Contractual Obligation 9      
San Juan Legacy [Member]        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Disposal Group, Including Discontinued Operation, Consideration       $ 169
Cash [Member] | San Juan Gallup [Member]        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Disposal Group, Including Discontinued Operation, Consideration $ 667