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Transactions with Affiliates (Details) - Antero Resources - USD ($)
$ in Millions
3 Months Ended 6 Months Ended 18 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Allocation of costs          
Direct operating expenses $ 5 $ 5     $ 10
General and administrative expense $ 8 $ 8 $ 17 $ 16