Acquisitions and Divestiture	6 Months Ended
Acquisitions and Divestiture	Jun. 30, 2024
Business Combination, Asset Acquisition, and Joint Venture Formation [Abstract]
Acquisitions and Divestiture	Acquisitions and Divestiture Tug Hill and XcL Midstream Acquisition. On August 22, 2023, the Company completed its acquisition (the Tug Hill and XcL Midstream Acquisition) of the upstream assets from THQ Appalachia I, LLC and the gathering and processing assets from THQ-XcL Holdings I, LLC through the acquisition of all of the issued and outstanding membership interests of each of THQ Appalachia I Midco, LLC and THQ-XcL Holdings I Midco, LLC. The purchase price for the Tug Hill and XcL Midstream Acquisition consisted of 49,599,796 shares of EQT Corporation common stock and approximately $2.4 billion in cash, subject to customary post-closing adjustments. The Company accounted for the Tug Hill and XcL Midstream Acquisition as a business combination using the acquisition method. The Company completed the purchase price allocation for the Tug Hill and XcL Midstream Acquisition during the first quarter of 2024. The purchase accounting adjustments recorded in 2024 were not material. NEPA Gathering System Acquisition. The Company operates and has historically owned a 50% interest in gathering assets located in northeast Pennsylvania (collectively, the NEPA Gathering System). On April 11, 2024, the Company completed its acquisition of a minority equity partner's 33.75% interest in the NEPA Gathering System for a purchase price of approximately $205 million (the NEPA Gathering System Acquisition), subject to customary post-closing adjustments. The NEPA Gathering System Acquisition was accounted for as an asset acquisition and, as such, its purchase price was allocated to property, plant and equipment. NEPA Non-Operated Asset Divestiture. On May 31, 2024, the Company completed the divestiture (the NEPA Non-Operated Asset Divestiture) of an undivided 40% interest in the Company's non-operated natural gas assets in northeast Pennsylvania with a carrying amount of approximately $522 million to Equinor USA Onshore Properties Inc. and its affiliates (collectively, the Equinor Parties). The carrying value was composed of approximately $549 million of property, plant and equipment, approximately $7 million of other current liabilities and approximately $20 million of other liabilities and credits. In exchange, as consideration, the Company received from the Equinor Parties cash of $500 million, subject to customary post-closing purchase price adjustments, certain upstream assets and the remaining 16.25% equity interest in the NEPA Gathering System. The total fair value of consideration received, net of liabilities assumed, was approximately $851 million, subject to customary post-closing purchase price adjustments, and included $412 million of property, plant and equipment. As a result of the NEPA Non-Operated Asset Divestiture, the Company recognized a gain of approximately $320 million in (gain) loss on sale/exchange of long-lived assets in the Statements of Condensed Consolidated Operations, which was calculated as the carrying value of divested assets less the fair value of consideration received, net of liabilities assumed and divestiture costs incurred of approximately $9 million. Cash proceeds from the NEPA Non-Operated Asset Divestiture were used to partly fund the Company's redemption of its 6.125% senior notes. The fair values of the natural gas properties received as consideration for the NEPA Non-Operated Asset Divestiture were measured using discounted cash flow valuation techniques based on inputs that are not observable in the market and, as such, is a Level 3 fair value measurement. Significant inputs include future commodity prices, projections of estimated quantities of reserves, estimated future rates of production, projected reserve recovery factors, timing and amount of future development and operating costs and a weighted average cost of capital. The fair value of the undeveloped properties received as consideration for the NEPA Non-Operated Asset Divestiture were measured using the guideline transaction method based on inputs that are not observable in the market and, as such, is a Level 3 fair value measurement. Significant inputs include future development plans from a market participant perspective. The fair value of the interest in the NEPA Gathering System received as consideration for the NEPA Non-Operated Asset Divestiture was measured using the cost approach based on inputs that are not observable in the market and, as such, is a Level 3 fair value measurement. Significant inputs include replacement cost for similar assets, relative age of the assets and potential economic or functional obsolescence. See Note 4 for a description of the fair value hierarchy. In addition, subsequent to the completion of the NEPA Non-Operated Asset Divestiture, the Company and the Equinor Parties entered into a gas buy-back agreement with respect to the assets received by the Company as consideration for the NEPA Non-Operated Asset Divestiture, whereby the Equinor Parties agreed to purchase a specified amount of natural gas from the Company through the first quarter of 2028.