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Summary of Significant Accounting Policies - Principles of Consolidation (Details) - USD ($)
$ / shares in Units, $ in Millions
Mar. 12, 2019
Jun. 30, 2020
Jun. 15, 2020
Dec. 31, 2019
Basis of Presentation        
Common stock, par value (in dollars per share)   $ 0.01   $ 0.01
Incremental override (percentage)     2.00%  
Accounts Payable        
Basis of Presentation        
Bank Overdrafts   $ 5   $ 7
Revenue distributions payable        
Basis of Presentation        
Bank Overdrafts       $ 18
Antero Midstream Corporation        
Basis of Presentation        
Common stock, par value (in dollars per share) $ 0.01      
Ownership interest in equity method 31.00%      
Antero Midstream Partners LP        
Basis of Presentation        
Ownership interest 53.00%