Contingencies (Details) - Lawsuit with Veolia Water Technologies, Inc. - Pending Litigation - USD ($) $ in Millions	Dec. 09, 2024	May 03, 2023	Jan. 27, 2023	Jan. 03, 2023	Feb. 24, 2022
Contingencies
Antero Treatment damages sought					$ 450
Antero Treatment damages sought related to multiple breaches					370
Veolia damages sought					$ 118
Claims for breach of contract and fraud awarded to Antero			$ 309	$ 242
Amended claims for breach of contract and fraud awarded to Antero		$ 280
Amount awarded to Antero for attorney fees and costs	$ 19