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Noble Midstream Partners LP (Details) - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Sep. 20, 2016
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Related Party Transaction [Line Items]        
Proceeds from Issuance or Sale of Equity   $ 0 $ 1,112 $ 0
IPO | Noble Midstream Revolving Credit Facility, due September 20, 2021        
Related Party Transaction [Line Items]        
Offering costs $ 24      
IPO | Noble Midstream Revolving Credit Facility, due September 20, 2021 | Common Units        
Related Party Transaction [Line Items]        
Sale (units) 14,375,000      
Issued ($ per share) $ 22.50      
Issued, net ($ per share) $ 21.21      
Over-Allotment Option | Noble Midstream Revolving Credit Facility, due September 20, 2021 | Common Units        
Related Party Transaction [Line Items]        
Sale (units) 1,875,000      
Noble Energy | Noble Midstream Revolving Credit Facility, due September 20, 2021 | Common Units        
Related Party Transaction [Line Items]        
Sale (units) 1,527,584      
Noble Energy | Noble Midstream Revolving Credit Facility, due September 20, 2021 | Subordinated Units        
Related Party Transaction [Line Items]        
Sale (units) 15,902,584      
Affiliated Entity | Noble Energy | Noble Midstream Revolving Credit Facility, due September 20, 2021 | Common Units        
Related Party Transaction [Line Items]        
Ownership 4.80%      
Affiliated Entity | Noble Energy | Noble Midstream Revolving Credit Facility, due September 20, 2021 | Subordinated Units        
Related Party Transaction [Line Items]        
Ownership 50.00%      
Noble Midstream Partners LP | Noble Midstream Revolving Credit Facility, due September 20, 2021        
Related Party Transaction [Line Items]        
Proceeds from Issuance or Sale of Equity $ 299 $ 299 $ 0 $ 0