Investments in Unconsolidated Entities - Narrative (Details) $ in Thousands		1 Months Ended	12 Months Ended
	Jan. 16, 2026 USD ($)	Dec. 31, 2023 Bcf / d mi in	Dec. 31, 2025 USD ($) Bcf / d mi in	Jan. 20, 2026	Nov. 30, 2025 USD ($)	Nov. 24, 2025	Jul. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)
Schedule of Equity Method Investments [Line Items]
Accretion, net			$ 1,400,000
Carrying Value			$ 3,597,564					$ 3,584,155
MVP Mainline \| MVP C
Schedule of Equity Method Investments [Line Items]
Annual minimum volume (in Bcf per day) \| Bcf / d			0.6
Laurel Mountain Midstream, LLC
Schedule of Equity Method Investments [Line Items]
Ownership Interest			31.00%					31.00%
Carrying Value			$ 47,037					$ 28,757
MVP Joint Venture
Schedule of Equity Method Investments [Line Items]
Carrying Value			$ 3,514,803					$ 3,534,730
MVP Joint Venture \| MVP C
Schedule of Equity Method Investments [Line Items]
Decrease of initial guarantee					$ 14,800
MVP Joint Venture \| Mountain Valley Pipeline
Schedule of Equity Method Investments [Line Items]
Natural gas interstate pipeline (in miles) \| mi			303
Pipeline diameter (in inches) \| in			42
Annual minimum volume (in Bcf per day) \| Bcf / d			2.0
MVP Joint Venture \| MVP B
Schedule of Equity Method Investments [Line Items]
Pipeline diameter (in inches) \| in		30
Annual minimum volume (in Bcf per day) \| Bcf / d		0.55
Decrease of initial guarantee							$ 14,200
Remaining capital obligation (as a percent)			33.00%
MVP Joint Venture \| MVP B \| Pittsylvania
Schedule of Equity Method Investments [Line Items]
Natural gas interstate pipeline (in miles) \| mi		31	75
MVP Joint Venture \| MVP B \| Rockingham County, North Carolina
Schedule of Equity Method Investments [Line Items]
Pipeline diameter (in inches) \| in			24
MVP Joint Venture \| MVP B \| Alamance County, North Carolina
Schedule of Equity Method Investments [Line Items]
Pipeline diameter (in inches) \| in			16
MVP Southgate \| Minimum
Schedule of Equity Method Investments [Line Items]
Estimated cost			$ 370,000
MVP Southgate \| Maximum
Schedule of Equity Method Investments [Line Items]
Estimated cost			430,000
MVP C \| Minimum
Schedule of Equity Method Investments [Line Items]
Estimated cost			400,000
MVP C \| Maximum
Schedule of Equity Method Investments [Line Items]
Estimated cost			$ 540,000
MVP A
Schedule of Equity Method Investments [Line Items]
Ownership Interest			49.30%					49.30%
Carrying Value			$ 3,097,754					$ 3,469,438
MVP A \| ConEd
Schedule of Equity Method Investments [Line Items]
Ownership Interest						6.60%
MVP A \| ConEd \| Subsequent Event
Schedule of Equity Method Investments [Line Items]
Ownership Interest	3.94%
MVP A \| ConEd \| Subsequent Event \| Series of Individually Immaterial Asset Acquisitions
Schedule of Equity Method Investments [Line Items]
Equity issued as consideration for acquisition	$ 200,700
MVP A \| ConEd \| Subsequent Event \| Series of Individually Immaterial Asset Acquisitions \| BXCI Affiliate
Schedule of Equity Method Investments [Line Items]
Equity issued as consideration for acquisition	$ 98,400
MVP C
Schedule of Equity Method Investments [Line Items]
Ownership Interest			49.30%					0.00%
Carrying Value			$ 374,629					$ 0
MVP C \| ConEd
Schedule of Equity Method Investments [Line Items]
Ownership Interest						6.60%
MVP C \| ConEd \| Subsequent Event
Schedule of Equity Method Investments [Line Items]
Ownership Interest	3.94%
MVP C \| ConEd \| Subsequent Event \| Series of Individually Immaterial Asset Acquisitions
Schedule of Equity Method Investments [Line Items]
Equity issued as consideration for acquisition	$ 12,500
MVP LLC Agreement \| Subsequent Event \| Series of Individually Immaterial Asset Acquisitions
Schedule of Equity Method Investments [Line Items]
Ownership Interest				2.66%
the Investment Fund
Schedule of Equity Method Investments [Line Items]
Investment owned			$ 33,000					$ 33,000

EQT Corp 10-K