XML 51 R37.htm IDEA: XBRL DOCUMENT v3.10.0.1
Acquisitions and Divestitures - Pro Forma Information (Details) - Clayton Williams Energy - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Business Acquisition [Line Items]        
Revenues $ 1,230 $ 1,070 $ 2,516 $ 2,141
Net Income (Loss) and Comprehensive Income (Loss) Attributable to Noble Energy $ 23 $ 1,354 $ (531) $ 1,324
Net Income (Loss) Attributable to Noble Energy per Common Share        
Basic (in usd per share) $ (0.05) $ (2.77) $ 1.09 $ (2.71)
Diluted (in usd per share) $ (0.05) $ (2.77) $ 1.09 $ (2.71)