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Noble Midstream Partners LP (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 9 Months Ended
Sep. 20, 2016
Sep. 30, 2016
Sep. 30, 2016
Sep. 30, 2015
Noble Midstream Partners LP [Member]        
Subsidiary, Sale of Stock [Line Items]        
Proceeds from Issuance of Noble Energy Common Stock, Net of Offering Costs       $ 0
Noble Midstream | IPO [Member]        
Subsidiary, Sale of Stock [Line Items]        
Limited Partners' Offering Costs $ 24      
Payments of Capital Distribution   $ 297    
Noble Midstream | IPO [Member] | Common Units [Member]        
Subsidiary, Sale of Stock [Line Items]        
Partners' Capital Account, Units, Sale of Units 14,375,000      
Shares Issued, Price Per Share $ 22.50      
Shares Issued, Price Per Share, Net $ 21.21      
Noble Midstream | Over-Allotment Option [Member] | Common Units [Member]        
Subsidiary, Sale of Stock [Line Items]        
Partners' Capital Account, Units, Sale of Units 1,875,000      
Noble Midstream | Noble Energy [Member] | Common Units [Member]        
Subsidiary, Sale of Stock [Line Items]        
Partners' Capital Account, Units, Sale of Units 1,527,584      
Noble Midstream | Noble Energy [Member] | Subordinated Units [Member]        
Subsidiary, Sale of Stock [Line Items]        
Partners' Capital Account, Units, Sale of Units 15,902,584      
Noble Midstream | Affiliated Entity [Member] | Noble Energy [Member] | Common Units [Member]        
Subsidiary, Sale of Stock [Line Items]        
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest 4.80%      
Noble Midstream | Affiliated Entity [Member] | Noble Energy [Member] | Subordinated Units [Member]        
Subsidiary, Sale of Stock [Line Items]        
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest 50.00%      
Noble Midstream | Noble Midstream Partners LP [Member]        
Subsidiary, Sale of Stock [Line Items]        
Proceeds from Issuance of Noble Energy Common Stock, Net of Offering Costs     $ 299