Annual report pursuant to Section 13 and 15(d)

Long-term Debt (Details)

v3.3.1.900
Long-term Debt (Details) - USD ($)
$ in Millions
12 Months Ended
Sep. 23, 2015
Dec. 31, 2015
Dec. 31, 2014
Nov. 10, 2014
New revolving credit facility        
Long-term debt        
Maximum amount of the Credit Facility $ 1,500     $ 1,000
Outstanding balance   $ 620 $ 0  
Weighted average interest rate (as a percent)   1.92% 1.92%  
Letter of credit        
Long-term debt        
Current borrowing capacity       $ 150
Outstanding balance   $ 0 $ 0  
Line of credit | Minimum        
Long-term debt        
Commitment fees on the unused portion (as a percent)   0.25%    
Line of credit | Maximum        
Long-term debt        
Commitment fees on the unused portion (as a percent)   0.375%    
Antero Water | Antero Water Credit Facility        
Long-term debt        
Repayment of credit faclity $ 171